I WAYAN NARKA - Academia.edu (original) (raw)

Papers by I WAYAN NARKA

Research paper thumbnail of Pengaruh Penambahan Pasir dan Kompos terhadap Pertumbuhan Bibit Kaliandra dan Beberapa Sifat Tanah

Agrotrop : Journal on Agriculture Science

Study on Effect Applications Sand and Compost on growth of kaliandra and soil properties. The pur... more Study on Effect Applications Sand and Compost on growth of kaliandra and soil properties. The purpose of this study was to determine the effect of giving sand and compost on growth of kaliandra and soil properties. The design used was a factorial randomized block design with 3 replications. The giving of sand factor consisted of 3 levels: P0 = no sand, P1 = 10% sand and P2 = 30% sand. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The observation of growth of kaliandra consisted : plant height, fresh weight of shoot and root of kaliandra, dry weight of shoot and root of kaliandra. Parameters of soil properties were observed: bulk density, C-organic matter content, Nitrogen content of soil and available of Phosphor dan Kalium of soil. The results of research showed that, no interaction between the treatment of giving sand and compost on the soil properties and growth of kaliandra, while the single trea...

Research paper thumbnail of Pengaruh Residu Pemberian Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Tanah dan Tanaman Kacang Tanah (Arachis hypogaea L.)

Agrotrop : Journal on Agriculture Science

Residual Effect of Mount Agung Volcanic Ash and Compost on Soil and Peanut Plants (Arachis hypoga... more Residual Effect of Mount Agung Volcanic Ash and Compost on Soil and Peanut Plants (Arachis hypogaea L.). Research on the application of Mount Agung volcanic ash and compost has been carried out with cowpea as an indicator plant, but volcanic ash has not shown any effect. The volcanic ash of Mount Agung is in the form of material that has not been weathered, so to accelerate weathering it is necessary to add organic matter. The purpose of this study was to determine the residual effect of giving volcanic ash and compost on soil and peanut plant. The design used was a factorial randomized block design with 3 replications. The volcanic ash factor consists of 3 levels, namely A0 = no volcanic ash, A1 = 10% volcanic ash and A2 = 30% volcanic ash. The compost factor consists of 3 levels, namely K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. Parameters of soil properties observed were : total porosity, nitrogen, phosphorus and potassium content and ...

Research paper thumbnail of Analisis Potensi dan Status Kerusakan Tanah pada Lahan Kering Berbasis Sistem Informasi Geografis di Kecamatan Baturiti, Kabupaten Tabanan, Provinsi Bali

Agrotrop: Journal on Agriculture Science, Jan 17, 2023

Analysis of Soil Degradation Potential and Status in Agricultural Dry Land Based on Geographic In... more Analysis of Soil Degradation Potential and Status in Agricultural Dry Land Based on Geographic Information Systems in Baturiti Sub-District. Biomass production activities that do not pay attention to conservation principles can cause soil degradation. This will reduce the productivity of natural resources, forestry and agriculture. The purpose of this research are to determine the potential, status, and distribution of soil degradation on dry land farming in Baturiti Sub-district. The method used on this research is a comparative descriptive method. Based on overlay of land use map, slope map, and soil type map using geographic information system, 9 homogenous land units were obtained. The land use observed was mixed gardens and dry fields with field observations of surface rocks and solum depth. Samples were analyzed in the laboratory to determine bulk density, total porosity, texture, permeability, pH, DHL, and microbial count. Determination of degradation status based on standard criteria of soil degradation. The results showed three classes of potential soil degradation, namely the potential for mild soil degradation at Perean Tengah, medium soil degradation potential at Baturiti, Antapan, Luwus, Bangli, Angseri, Candikuning, and the high potential soil degradation at Antapan. The soil degradation status was found lightly damaged status with permeability limiting factors at Baturiti and partially Antapan, with limiting factors for permeability and composition of fractions at Candikuning and partially Antapan, limiting factors for permeability and porosity total at Perean Tengah.

Research paper thumbnail of Pemberian Kombinasi Dosis Pupuk Hayati Evagrow dan Pupuk Kimia NPK terhadap Pertumbuhan Tanaman Bunga Gumitir

Research paper thumbnail of Upaya meningkatkan produksi kubis serapan fosfat pada tanah andosol dengan beberapa sumber nitrogen: laporan penelitian

Research paper thumbnail of Nilai erodibilitas tanah pada lahan bekas hutan jati di Bali barat dan hubungannya dengan beberapa sifat fisik tanah : laporan penelitian

Research paper thumbnail of Kajian pengaruh residu pemberian paket dosis pupuk organic, anorganik dan pupuk hayati terhadap pertumbuhan tanaman kangkung (Ipomea reptans Poir.)

Research paper thumbnail of Kombinasi Pupuk Organik, Pupuk Anorganik (NPK), Dan Pupuk Hayati Terhadap Peningkatan Produksi Tanaman Sawi Hijau Dan Fa Choi

Research paper thumbnail of Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

Agrotrop: Journal on Agriculture Science, 2014

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and ap... more Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and application anorganic fertilizer to suppose decrease soil organic matter. How low organic matter content of paddy soil and uppland soil not yet were taken. Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil sample was 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency was taken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium Tanah Fakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley dan Black method and soil texture was analyzed with Pipet method. Organic matter content of paddy soil were correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soil texture (sand, silt and clay). Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil. Soil organic matter of paddy...

Research paper thumbnail of Pengaruh Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Beberapa Sifat Tanah dan Hasil Kacang Tunggak (Vigna unguiculata (L.) Walp.)

Agrotrop : Journal on Agriculture Science

The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nu... more The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nuts (Vigna unguiculata (L.) Walp). The purpose of this study was to determine the effect of giving volcanic ash and compost as a soil amendment. The design used was a factorial randomized block design. The volcanic ash factor consisted of 3 levels: A0 = no volcanic ash, A1 = 15% volcanic ash and A2 = 30% volcanic ash. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The combination treatments was repeated 3 times so that there were 27 observation units. Several parameters of soil properties and yield of tunggak nuts were studied to determine the effect of volcanic ash and compost as soil amendments. The results showed that the interaction between the treatment of volcanic ash and compost on the soil and plants was not significant, while the single treatment of compost had a significant effect on the growth and ...

Research paper thumbnail of Evaluation of Land Suitability for Increasing Productivity in Degraded Unda Watershed, District of Karangasem, Bali

International Journal of Biosciences and Biotechnology

Evaluation of land suitability to increase the productivity of degraded lands in the Unda watersh... more Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist. Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units. Land suitability classification using the criteria of the Technical Guidelines for Evaluation of Land For Agricultural Commodities of Soil Research Institute (2003) is by matching between the haracteristics of the land with the requirements of growing plants was evaluated. Types of agricultural crops that are evaluated include plantation crops and food crops hotikultura fruits. Suitability actual land (land suitability based on survey data) are mostly classified...

Research paper thumbnail of Pengaruh Interval Pemberian Air melalui Irigasi Tetes (Drip Irrigation) dan Pupuk Mineral Plus terhadap Produksi Anggur pada Lahan Kering di Kecamatan Gerokgak Kabupaten Buleleng

Agritrop, 2007

A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokg... more A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokgak, Buleleng. The aim of the experiment was to demonstrate to the local farmer about the beneficial goal of drip technology in order to gain a high efficiency of water application. Three intervals of water application, i.e. : 2 days, 4 days and 6 days (I1, I2, I3) in drip technique, and application of Mineral Plus fertilizers (M1) and without Mineral Plus fertilizers (M0) was observed in a nested block design. Bali grape varieties were used as an indicator. Parameters which were observed in second year experiment included the water distribution as indicated by soil water content at 0 – 15 cm depth, and soil water matrix potential (0 – 30 cm depth) which indicated by Loctonic tensiometer. Plant growth was observed by measuring fresh and dry weight biomass and diameter of grape stalk, regularly. The result of the experiment showed that, soil water content of 0 – 15 cm depth was not significantly affected by the treatment. Plant growth as indicated by fresh weight of biomass, dry weight of biomass and diameter of grape stalk were not significantly affected by the treatment There were no significant differences between treatments on fresh and dry weight biomass, dry biomass and diameter of grape stalk so that the yield of grape as indicated by number bunch of grape per plant, fresh weight of grape per bunch, fresh weight of grape per plant, dry weight of grape per bunch, number of grape per bunch were not significantly affected by the treatment. Yield quality as indicated by volume of grape per pellet, sugar content of grape and colour of grape were no significant differences between treatments.

Research paper thumbnail of Kajian pengaruh pemberian limbah jamur merang dan tanah grumusol terhadap sifat fisik tanah regosol dan pertumbuhan jagung

Research paper thumbnail of Kajian Paket Dosis Semi Organik terhadap Sifat Tanah dan Hasil Tanaman Padi (Oryza sativa L)

Agrotrop: Journal on Agriculture Science, 2020

The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza ... more The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza sativa L). The aim of this study was to know the effect of semi organic fertilization doses on soil properties and yield of rice. The Randomized block design (RBD), with 3 replications and 9 treatments was used in this study. P0 (without fertilizer), P1 (25 tons of organic fertilizer ha-1), P2 (300 kg of Urea ha-1, 150 kg SP36 ha-1 and 75 kg KCl ha-1), P3 (biourin liquid fertilizer) P4 (½ P1 + ½ P2), P5 (½ P1 + ½ P3, P6 (½ P2 + ½ P3), P7 (2/3P1 + 1/ 3 P2) and P8 (2/3P3 + 1/3P2). The results showed that the application of semi-organic fertilizer on soil properties such as soil salinity, C-organic content, P-available and Nitrogen content of soil significantly affected by the treatment, while potasium_available and soil pH is not significantly affected by the treatment. Yield of rice had a very significant effected by treatment. The semi-organic fertilizer P4 (combination of 50 % anorgani...

Research paper thumbnail of Kajian pengaruh pemberian limbah jamur merang dan tanah grumusol terhadap sifat fisik tanah regosol dan pertumbuhan jagung

Research paper thumbnail of Pengaruh Interval Pemberian Air melalui Irigasi Tetes (Drip Irrigation) dan Pupuk Mineral Plus terhadap Produksi Anggur pada Lahan Kering di Kecamatan Gerokgak Kabupaten Buleleng

A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokg... more A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokgak, Buleleng. The aim of the experiment was to demonstrate to the local farmer about the beneficial goal of drip technology in order to gain a high efficiency of water application. Three intervals of water application, i.e. : 2 days, 4 days and 6 days (I1, I2, I3) in drip technique, and application of Mineral Plus fertilizers (M1) and without Mineral Plus fertilizers (M0) was observed in a nested block design. Bali grape varieties were used as an indicator. Parameters which were observed in second year experiment included the water distribution as indicated by soil water content at 0 – 15 cm depth, and soil water matrix potential (0 – 30 cm depth) which indicated by Loctonic tensiometer. Plant growth was observed by measuring fresh and dry weight biomass and diameter of grape stalk, regularly. The result of the experiment showed that, soil water content of 0 – 15 cm depth was not signifi...

Research paper thumbnail of Evaluation of Land Suitability for Increasing Productivity in Degraded Unda Watershed, District of Karangasem, Bali

International Journal of Biosciences and Biotechnology

Evaluation of land suitability to increase the productivity of degraded lands in the Unda watersh... more Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist. Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units. Land suitability classification using the criteria of the Technical Guidelines for Evaluation of Land For Agricultural Commodities of Soil Research Institute (2003) is by matching between the haracteristics of the land with the requirements of growing plants was evaluated. Types of agricultural crops that are evaluated include plantation crops and food crops hotikultura fruits. Suitability actual land (land suitability based on survey data) are mostly classified...

Research paper thumbnail of Application of Dosage Combinations of Evagrow Biofertilizer and Chemical Fertilizer on Soil Characteristics, Growth and Yield of Rice

Advances in Tropical Biodiversity and Environmental Sciences, May 3, 2017

Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers o... more Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers on soil properties, growth and yield of rice has been carried out in the glasshouse, Faculty of Agriculture, Udayana University using factorial experiment with a Randomized Block Design (RBD). The first factor is Evagrow bio-fertilizer in 3 level, i.e. E0 (without bio-fertilizers), E1 (5 g bio-fertilizer/L) E2 (10 grams bio-fertilizer/L). The second factor is chemical fertilizer, which consists of 3 levels: K0 (without chemical fertilizers), K1 (150 kg Urea/ha + 75 kg SP36/ha + 37.5 kg KCl/ha), K2 (300 kg Urea/ha + 150 kg SP36/ha + 75 kg KCl/ha). The results showed that chemical fertilizers give a significant and very significant effect on most of the rice growth and yield parameters. The application of chemical fertilizers K1 and K2 increased yield of dry grain harvest to 52.87% and 102.54% compared to controls. Application of Evagrow bio-fertilizer did not significantly increase growth and yield of rice. There is no interaction between chemical fertilizers and Evagrow biofertilizer. Similarly to some of the soil characteristics, biological fertilizer and chemical fertilizer application did not show significant effect on most of the soil characteristics, except on salt levels.

Research paper thumbnail of Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

Agrotrop, 2012

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and ap... more Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and application anorganic fertilizer to suppose decrease soil organic matter. How low organic matter content of paddy soil and uppland soil not yet were taken. Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil sample was 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency was taken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium Tanah Fakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley dan Black method and soil texture was analyzed with Pipet method. Organic matter content of paddy soil were correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soil texture (sand, silt and clay). Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil. Soil organic matter of paddy soil with criteria very high 4.17 %, high 27.08 %, moderate 47.92 %, low 18.75 % and very low 2.08 %. Soil organic matter of uppland soil with criteria : high 6.25 %, moderate 35.42 %, low 39,58 % and very low 18.75 %. Fine texture was dominant of paddy soil, but coarse texture was dominant at uppland soil. Correlation between soil organic matter to soil texture of uppland soil was better than correlation between soil organic matter with soil texture at paddy soil. Correlation soil organic matter with texture (sand) at uppland soil r = -0.5142*) and correlation with clay r = 0.5007*. Correlation at paddy soil between sand and soil organic matter r = -0.1241 and between clay and organic matter of soils r = 0.2150.

Research paper thumbnail of Hubungan Antara Tekstur Tanah Dengan Kadar Fosfat, Kalium Dan Kapasitas Tukar Kation Tanah Dari Beberapa Contoh Tanah DI Bali

Agritrop, 2007

A laboratory experiment about correlation of texture (sand, silt and clay fractions) to phosphate... more A laboratory experiment about correlation of texture (sand, silt and clay fractions) to phosphate (P), potassium (K) content and Cation Exchange Capacity (CEC) of soil was carried out at Soil Laboratory Faculty of Agriculture Udayana University in May until October 2006. Soil samples were taken from regencies of Bali and analyzed some properties of soil such as: soil texture, potassium, available P content and CEC of soil. Soil texture was analyzed with pipet method, potassium content with Bray I method, available P content with Bray I method and CEC with NH4OAc.saturation method. Pearson correlation method was used in this experiment to study the correlation of sand, silt and clay fractions to potassium, available P content and CEC of soil. The result of the experiment showed that, there are highly significant correlation between sand fraction and potassium, available P content and CEC of soil with coefficient correlation (r) of : -0,427**, -0,314* and -0,719** , respectively. Correlation between clay fraction and potassium content, CEC of soil with coefficient correlation (r) of : 0,430** and 0,661**, respectively. Between silt fraction and potassium, available P content and CEC of soil were not significant correlation, with coefficient correlation (r) : 0,127; 0,257 and 0,256, respectively . Between potassium content and CEC of soil showed a highly significant correlation with coefficient correlation (r) = 0,383**. Step wise analyzed showed that , potassium content was significantly influenced by clay fraction, while available P and CEC of soil were significantly affected by sand

Research paper thumbnail of Pengaruh Penambahan Pasir dan Kompos terhadap Pertumbuhan Bibit Kaliandra dan Beberapa Sifat Tanah

Agrotrop : Journal on Agriculture Science

Study on Effect Applications Sand and Compost on growth of kaliandra and soil properties. The pur... more Study on Effect Applications Sand and Compost on growth of kaliandra and soil properties. The purpose of this study was to determine the effect of giving sand and compost on growth of kaliandra and soil properties. The design used was a factorial randomized block design with 3 replications. The giving of sand factor consisted of 3 levels: P0 = no sand, P1 = 10% sand and P2 = 30% sand. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The observation of growth of kaliandra consisted : plant height, fresh weight of shoot and root of kaliandra, dry weight of shoot and root of kaliandra. Parameters of soil properties were observed: bulk density, C-organic matter content, Nitrogen content of soil and available of Phosphor dan Kalium of soil. The results of research showed that, no interaction between the treatment of giving sand and compost on the soil properties and growth of kaliandra, while the single trea...

Research paper thumbnail of Pengaruh Residu Pemberian Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Tanah dan Tanaman Kacang Tanah (Arachis hypogaea L.)

Agrotrop : Journal on Agriculture Science

Residual Effect of Mount Agung Volcanic Ash and Compost on Soil and Peanut Plants (Arachis hypoga... more Residual Effect of Mount Agung Volcanic Ash and Compost on Soil and Peanut Plants (Arachis hypogaea L.). Research on the application of Mount Agung volcanic ash and compost has been carried out with cowpea as an indicator plant, but volcanic ash has not shown any effect. The volcanic ash of Mount Agung is in the form of material that has not been weathered, so to accelerate weathering it is necessary to add organic matter. The purpose of this study was to determine the residual effect of giving volcanic ash and compost on soil and peanut plant. The design used was a factorial randomized block design with 3 replications. The volcanic ash factor consists of 3 levels, namely A0 = no volcanic ash, A1 = 10% volcanic ash and A2 = 30% volcanic ash. The compost factor consists of 3 levels, namely K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. Parameters of soil properties observed were : total porosity, nitrogen, phosphorus and potassium content and ...

Research paper thumbnail of Analisis Potensi dan Status Kerusakan Tanah pada Lahan Kering Berbasis Sistem Informasi Geografis di Kecamatan Baturiti, Kabupaten Tabanan, Provinsi Bali

Agrotrop: Journal on Agriculture Science, Jan 17, 2023

Analysis of Soil Degradation Potential and Status in Agricultural Dry Land Based on Geographic In... more Analysis of Soil Degradation Potential and Status in Agricultural Dry Land Based on Geographic Information Systems in Baturiti Sub-District. Biomass production activities that do not pay attention to conservation principles can cause soil degradation. This will reduce the productivity of natural resources, forestry and agriculture. The purpose of this research are to determine the potential, status, and distribution of soil degradation on dry land farming in Baturiti Sub-district. The method used on this research is a comparative descriptive method. Based on overlay of land use map, slope map, and soil type map using geographic information system, 9 homogenous land units were obtained. The land use observed was mixed gardens and dry fields with field observations of surface rocks and solum depth. Samples were analyzed in the laboratory to determine bulk density, total porosity, texture, permeability, pH, DHL, and microbial count. Determination of degradation status based on standard criteria of soil degradation. The results showed three classes of potential soil degradation, namely the potential for mild soil degradation at Perean Tengah, medium soil degradation potential at Baturiti, Antapan, Luwus, Bangli, Angseri, Candikuning, and the high potential soil degradation at Antapan. The soil degradation status was found lightly damaged status with permeability limiting factors at Baturiti and partially Antapan, with limiting factors for permeability and composition of fractions at Candikuning and partially Antapan, limiting factors for permeability and porosity total at Perean Tengah.

Research paper thumbnail of Pemberian Kombinasi Dosis Pupuk Hayati Evagrow dan Pupuk Kimia NPK terhadap Pertumbuhan Tanaman Bunga Gumitir

Research paper thumbnail of Upaya meningkatkan produksi kubis serapan fosfat pada tanah andosol dengan beberapa sumber nitrogen: laporan penelitian

Research paper thumbnail of Nilai erodibilitas tanah pada lahan bekas hutan jati di Bali barat dan hubungannya dengan beberapa sifat fisik tanah : laporan penelitian

Research paper thumbnail of Kajian pengaruh residu pemberian paket dosis pupuk organic, anorganik dan pupuk hayati terhadap pertumbuhan tanaman kangkung (Ipomea reptans Poir.)

Research paper thumbnail of Kombinasi Pupuk Organik, Pupuk Anorganik (NPK), Dan Pupuk Hayati Terhadap Peningkatan Produksi Tanaman Sawi Hijau Dan Fa Choi

Research paper thumbnail of Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

Agrotrop: Journal on Agriculture Science, 2014

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and ap... more Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and application anorganic fertilizer to suppose decrease soil organic matter. How low organic matter content of paddy soil and uppland soil not yet were taken. Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil sample was 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency was taken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium Tanah Fakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley dan Black method and soil texture was analyzed with Pipet method. Organic matter content of paddy soil were correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soil texture (sand, silt and clay). Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil. Soil organic matter of paddy...

Research paper thumbnail of Pengaruh Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Beberapa Sifat Tanah dan Hasil Kacang Tunggak (Vigna unguiculata (L.) Walp.)

Agrotrop : Journal on Agriculture Science

The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nu... more The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nuts (Vigna unguiculata (L.) Walp). The purpose of this study was to determine the effect of giving volcanic ash and compost as a soil amendment. The design used was a factorial randomized block design. The volcanic ash factor consisted of 3 levels: A0 = no volcanic ash, A1 = 15% volcanic ash and A2 = 30% volcanic ash. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The combination treatments was repeated 3 times so that there were 27 observation units. Several parameters of soil properties and yield of tunggak nuts were studied to determine the effect of volcanic ash and compost as soil amendments. The results showed that the interaction between the treatment of volcanic ash and compost on the soil and plants was not significant, while the single treatment of compost had a significant effect on the growth and ...

Research paper thumbnail of Evaluation of Land Suitability for Increasing Productivity in Degraded Unda Watershed, District of Karangasem, Bali

International Journal of Biosciences and Biotechnology

Evaluation of land suitability to increase the productivity of degraded lands in the Unda watersh... more Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist. Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units. Land suitability classification using the criteria of the Technical Guidelines for Evaluation of Land For Agricultural Commodities of Soil Research Institute (2003) is by matching between the haracteristics of the land with the requirements of growing plants was evaluated. Types of agricultural crops that are evaluated include plantation crops and food crops hotikultura fruits. Suitability actual land (land suitability based on survey data) are mostly classified...

Research paper thumbnail of Pengaruh Interval Pemberian Air melalui Irigasi Tetes (Drip Irrigation) dan Pupuk Mineral Plus terhadap Produksi Anggur pada Lahan Kering di Kecamatan Gerokgak Kabupaten Buleleng

Agritrop, 2007

A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokg... more A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokgak, Buleleng. The aim of the experiment was to demonstrate to the local farmer about the beneficial goal of drip technology in order to gain a high efficiency of water application. Three intervals of water application, i.e. : 2 days, 4 days and 6 days (I1, I2, I3) in drip technique, and application of Mineral Plus fertilizers (M1) and without Mineral Plus fertilizers (M0) was observed in a nested block design. Bali grape varieties were used as an indicator. Parameters which were observed in second year experiment included the water distribution as indicated by soil water content at 0 – 15 cm depth, and soil water matrix potential (0 – 30 cm depth) which indicated by Loctonic tensiometer. Plant growth was observed by measuring fresh and dry weight biomass and diameter of grape stalk, regularly. The result of the experiment showed that, soil water content of 0 – 15 cm depth was not significantly affected by the treatment. Plant growth as indicated by fresh weight of biomass, dry weight of biomass and diameter of grape stalk were not significantly affected by the treatment There were no significant differences between treatments on fresh and dry weight biomass, dry biomass and diameter of grape stalk so that the yield of grape as indicated by number bunch of grape per plant, fresh weight of grape per bunch, fresh weight of grape per plant, dry weight of grape per bunch, number of grape per bunch were not significantly affected by the treatment. Yield quality as indicated by volume of grape per pellet, sugar content of grape and colour of grape were no significant differences between treatments.

Research paper thumbnail of Kajian pengaruh pemberian limbah jamur merang dan tanah grumusol terhadap sifat fisik tanah regosol dan pertumbuhan jagung

Research paper thumbnail of Kajian Paket Dosis Semi Organik terhadap Sifat Tanah dan Hasil Tanaman Padi (Oryza sativa L)

Agrotrop: Journal on Agriculture Science, 2020

The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza ... more The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza sativa L). The aim of this study was to know the effect of semi organic fertilization doses on soil properties and yield of rice. The Randomized block design (RBD), with 3 replications and 9 treatments was used in this study. P0 (without fertilizer), P1 (25 tons of organic fertilizer ha-1), P2 (300 kg of Urea ha-1, 150 kg SP36 ha-1 and 75 kg KCl ha-1), P3 (biourin liquid fertilizer) P4 (½ P1 + ½ P2), P5 (½ P1 + ½ P3, P6 (½ P2 + ½ P3), P7 (2/3P1 + 1/ 3 P2) and P8 (2/3P3 + 1/3P2). The results showed that the application of semi-organic fertilizer on soil properties such as soil salinity, C-organic content, P-available and Nitrogen content of soil significantly affected by the treatment, while potasium_available and soil pH is not significantly affected by the treatment. Yield of rice had a very significant effected by treatment. The semi-organic fertilizer P4 (combination of 50 % anorgani...

Research paper thumbnail of Kajian pengaruh pemberian limbah jamur merang dan tanah grumusol terhadap sifat fisik tanah regosol dan pertumbuhan jagung

Research paper thumbnail of Pengaruh Interval Pemberian Air melalui Irigasi Tetes (Drip Irrigation) dan Pupuk Mineral Plus terhadap Produksi Anggur pada Lahan Kering di Kecamatan Gerokgak Kabupaten Buleleng

A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokg... more A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokgak, Buleleng. The aim of the experiment was to demonstrate to the local farmer about the beneficial goal of drip technology in order to gain a high efficiency of water application. Three intervals of water application, i.e. : 2 days, 4 days and 6 days (I1, I2, I3) in drip technique, and application of Mineral Plus fertilizers (M1) and without Mineral Plus fertilizers (M0) was observed in a nested block design. Bali grape varieties were used as an indicator. Parameters which were observed in second year experiment included the water distribution as indicated by soil water content at 0 – 15 cm depth, and soil water matrix potential (0 – 30 cm depth) which indicated by Loctonic tensiometer. Plant growth was observed by measuring fresh and dry weight biomass and diameter of grape stalk, regularly. The result of the experiment showed that, soil water content of 0 – 15 cm depth was not signifi...

Research paper thumbnail of Evaluation of Land Suitability for Increasing Productivity in Degraded Unda Watershed, District of Karangasem, Bali

International Journal of Biosciences and Biotechnology

Evaluation of land suitability to increase the productivity of degraded lands in the Unda watersh... more Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist. Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units. Land suitability classification using the criteria of the Technical Guidelines for Evaluation of Land For Agricultural Commodities of Soil Research Institute (2003) is by matching between the haracteristics of the land with the requirements of growing plants was evaluated. Types of agricultural crops that are evaluated include plantation crops and food crops hotikultura fruits. Suitability actual land (land suitability based on survey data) are mostly classified...

Research paper thumbnail of Application of Dosage Combinations of Evagrow Biofertilizer and Chemical Fertilizer on Soil Characteristics, Growth and Yield of Rice

Advances in Tropical Biodiversity and Environmental Sciences, May 3, 2017

Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers o... more Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers on soil properties, growth and yield of rice has been carried out in the glasshouse, Faculty of Agriculture, Udayana University using factorial experiment with a Randomized Block Design (RBD). The first factor is Evagrow bio-fertilizer in 3 level, i.e. E0 (without bio-fertilizers), E1 (5 g bio-fertilizer/L) E2 (10 grams bio-fertilizer/L). The second factor is chemical fertilizer, which consists of 3 levels: K0 (without chemical fertilizers), K1 (150 kg Urea/ha + 75 kg SP36/ha + 37.5 kg KCl/ha), K2 (300 kg Urea/ha + 150 kg SP36/ha + 75 kg KCl/ha). The results showed that chemical fertilizers give a significant and very significant effect on most of the rice growth and yield parameters. The application of chemical fertilizers K1 and K2 increased yield of dry grain harvest to 52.87% and 102.54% compared to controls. Application of Evagrow bio-fertilizer did not significantly increase growth and yield of rice. There is no interaction between chemical fertilizers and Evagrow biofertilizer. Similarly to some of the soil characteristics, biological fertilizer and chemical fertilizer application did not show significant effect on most of the soil characteristics, except on salt levels.

Research paper thumbnail of Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

Agrotrop, 2012

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and ap... more Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage and application anorganic fertilizer to suppose decrease soil organic matter. How low organic matter content of paddy soil and uppland soil not yet were taken. Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil sample was 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency was taken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium Tanah Fakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley dan Black method and soil texture was analyzed with Pipet method. Organic matter content of paddy soil were correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soil texture (sand, silt and clay). Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil. Soil organic matter of paddy soil with criteria very high 4.17 %, high 27.08 %, moderate 47.92 %, low 18.75 % and very low 2.08 %. Soil organic matter of uppland soil with criteria : high 6.25 %, moderate 35.42 %, low 39,58 % and very low 18.75 %. Fine texture was dominant of paddy soil, but coarse texture was dominant at uppland soil. Correlation between soil organic matter to soil texture of uppland soil was better than correlation between soil organic matter with soil texture at paddy soil. Correlation soil organic matter with texture (sand) at uppland soil r = -0.5142*) and correlation with clay r = 0.5007*. Correlation at paddy soil between sand and soil organic matter r = -0.1241 and between clay and organic matter of soils r = 0.2150.

Research paper thumbnail of Hubungan Antara Tekstur Tanah Dengan Kadar Fosfat, Kalium Dan Kapasitas Tukar Kation Tanah Dari Beberapa Contoh Tanah DI Bali

Agritrop, 2007

A laboratory experiment about correlation of texture (sand, silt and clay fractions) to phosphate... more A laboratory experiment about correlation of texture (sand, silt and clay fractions) to phosphate (P), potassium (K) content and Cation Exchange Capacity (CEC) of soil was carried out at Soil Laboratory Faculty of Agriculture Udayana University in May until October 2006. Soil samples were taken from regencies of Bali and analyzed some properties of soil such as: soil texture, potassium, available P content and CEC of soil. Soil texture was analyzed with pipet method, potassium content with Bray I method, available P content with Bray I method and CEC with NH4OAc.saturation method. Pearson correlation method was used in this experiment to study the correlation of sand, silt and clay fractions to potassium, available P content and CEC of soil. The result of the experiment showed that, there are highly significant correlation between sand fraction and potassium, available P content and CEC of soil with coefficient correlation (r) of : -0,427**, -0,314* and -0,719** , respectively. Correlation between clay fraction and potassium content, CEC of soil with coefficient correlation (r) of : 0,430** and 0,661**, respectively. Between silt fraction and potassium, available P content and CEC of soil were not significant correlation, with coefficient correlation (r) : 0,127; 0,257 and 0,256, respectively . Between potassium content and CEC of soil showed a highly significant correlation with coefficient correlation (r) = 0,383**. Step wise analyzed showed that , potassium content was significantly influenced by clay fraction, while available P and CEC of soil were significantly affected by sand