Abdullah Baran - Academia.edu (original) (raw)

Papers by Abdullah Baran

Tarım Bilimleri Dergisi, 1996

Pamukkale University Journal of Engineering Sciences, 1997

In this research, the effect of different compaction durations on changes of total pore spaces, a... more In this research, the effect of different compaction durations on changes of total pore spaces, available water content, aeration porosity and hydraulic conductivity of a compacted clay loam soil were investigated. Soil samples were compacted at compaction levels of 0 kg/cm2 , 1.98 kg/cm2 and 3.00 kg/cm2 for 1, 2 and 4 minutes, then, above mentioned physical properties of soil samples were determined. Total pore spaces, available water content, aeration porosity and hydraulic conductivity of soil samples were not significantly affected from the compaction durations, but significantly decreased with increasing compaction levels.

Istanbul University - DergiPark, Jun 30, 2022

Selçuk Üniversitesi Ziraat Fakültesi Dergisi (:Selçuk Tarım ve Gıda Bilimleri Dergisi), 2000

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effect of organic soil on changes in total pore space, aeration porosity, a... more In this research, the effect of organic soil on changes in total pore space, aeration porosity, available water content and hydraulic conductivity of a compacted clay loam were investigated. By adding organic soil at rates of 0 %, 1 %, 2 % and 4 % to soil, mixtures were compacted at compaction levels of 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 and 3.95 kg/cm2 Some physical properties of compacted soil were determined. Compaction decreased total pore space, areation porosity, available water content and hydraulic conductivity, but in samples with the mixing rate of 4 %, all properties inspected were affected positively in all compaction levels, except available water content

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (A... more In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (Aspergillus niger), species on the aggregate stability of a clay loam soil mixed and non mixed by peat were investigated. The inoculated and non inoculated samples were incubated at 20 ± 1°C for 1, 30, 60 and 90 days, then, at the end of each incubation period, aggregate stabilities were determined. At the end of second incubation period, maximum aggregate stabilities were obtained at the inoculated and non inoculated and mixed peat and non mixed peat soil samples, and this differences were found significant by statistically (P < 0.05). At the end of after second incubation periods, aggregate stabilities were decreased. Fungus caused in higher inrease at aggregate stabilities than bacteria. It was found that aggregate stabilities of soils mixed by peat lower than non mixed by peat.

Pamukkale University Journal of Engineering Sciences, 1996

In this research, degree of decomposition, cation exchange capacity (CEC) and organic matter rela... more In this research, degree of decomposition, cation exchange capacity (CEC) and organic matter relationships in peats of Turkey taken from 0-20 cm, 20-40 cm and 40-60 cm depths of 14 different regions were investigated. It was determined some correlations between decomposition degree and CEC, and also between organic matter and CEC. Decomposition increased as CEC and organic matter content increased, and organic matter affected CEC, positively. Those relationships were ascertained by statistical analyses.

Environmental Geology, 2008

Tarım Bilimleri Dergisi, 1998

In this study, the effects of peat and sand amended spent mushroom compcst (SMC) on grov ı ing of... more In this study, the effects of peat and sand amended spent mushroom compcst (SMC) on grov ı ing of tomato(Lycopersicon escelantum Mili. cv.H 2274.) were investigated, and 100% Peat and SMC, mixtures of SMC with 25%, 50%, 75% Peat, and 50% SMC + 25% Peat + 25% Sand and 50% Peat + 25% SMC + 25% Sand were used as growing media. Plant growing in SMC mixing with peat and sand was compared with 100 % Peat as control. 25% P + 75% SMC was ascertained the most appropriate mixture for plant growing in SMC mixtures. Shoot and root dry weights of control was found higher than other treatments. There was no statistical difference among 100% SMC, 50% Peat + 50% SMC and 75% Peat + 25% SMC whereas sand significantly negatively affected plant growth (P< 0.01).

Pamukkale University Journal of Engineering Sciences, 1996

Bu araştırmada, killi tınlı bir toprağın toplam boşluklar yüzdesi, havalanma porozitesi, yarayışl... more Bu araştırmada, killi tınlı bir toprağın toplam boşluklar yüzdesi, havalanma porozitesi, yarayışlı su miktarı ve su iletkenliği gibi fiziksel özelliklerinde sıkışma sonucunda oluşan değişmelere organik toprakla karıştırmanın etkisi incelenmiştir. Toprağa, % 0, % 1, % 2 ve % 4 oranlarında organik toprak ilave edilerek, karışımlar, 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 ve 3.95 kg/cm2 lik sıkışmaya maruz bırakılmışlar ve sıkıştırılan örneklerin değinilen fiziksel özellikleri belirlenmiştir. Sıkışma ile karışımların, toplam boşluklar yüzdeleri, havalanma poroziteleri, yarayışlı su miktarları ve su geçirgenliklerinin azalma gösterdikleri, ancak, % 4 oranında organik toprakla karıştırılmış örneklerde bütün sıkışma düzeylerinde, yarayışlı su miktarları hariç, diğer özelliklerin olumlu yönde etkilendiği saptanmıştır.

Abstract: The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitr... more Abstract: The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitrogen mineralisation of urea-treated and untreated soils were investigated. Soils were compacted at compaction levels of O kgcm-2, 2 kgcm-2 and 4 kgcm-2 and incubated for 28 days. The changes in urease enzyme activity, CO 2 evaluation and nitrogen mineralization were determined during incubation periods. Urease enzyme activity was decreased significantly (P<0.05) in all samples, but it was observed that there was a negative effect of compaction on urease enzyme activity and CO 2 evaluation in urea-treated soils. Depending on incubation peroids, urea-treated soils had 5 times more NH 4 +-N and 4 times more NO 3--N than untreated soils. Furthermore, compaction induced mitrification in both groups (P<0.05). Key Words: Compaction, urease enzyme activity, carbon dioxide evaluation, nitrogen mineralisation

Pamukkale University Journal of Engineering Sciences, 1995

Some physical and chemical properties of tobacco dust, grape marc and mushroom compost, which con... more Some physical and chemical properties of tobacco dust, grape marc and mushroom compost, which contain high organic matter, were as plant growth medium investigated. According to research results, the some physical properties of all wastes were found insufficient, although, nutrient contents were found very high.

Communications in Soil Science and Plant Analysis, 2021

It is necessary to know the effect of organic matter on soil physical properties for successful s... more It is necessary to know the effect of organic matter on soil physical properties for successful soil management. A short-term incubation study was carried out to investigate the effects of different compost materials on soil aggregation and mechanical properties. Compost materials derived from cattle, sheep, poultry manure, plant residues, and a blend of an equal amount of those residues/wastes (called as mixture) were mixed with soil at doses of 1%, 2%, 3% and 4% with control treatment and subjected to a 60-day incubation period. It was revealed that compost materials significantly increased the values of water-stable aggregate (WSA), organic carbon (OC) and moisture content at tension values of pF 0 (saturation), pF 1.7 (aeration porosity), pF 2.54 (field capacity) and pF 4.2 (permanent wilting point), as well as the hydraulic conductivity (HC) and liquid limit (LL) values; however, they decreased the bulk density (BD) and coefficient of linear extensibility (COLE) values. On the ...

Türkiye Tarımsal Araştırmalar Dergisi, 2016

Bu calismada, Ankara Ili Kecioren Ilcesi Kosrelik Goleti Kirsal Rekreasyon alani uzerinde calisil... more Bu calismada, Ankara Ili Kecioren Ilcesi Kosrelik Goleti Kirsal Rekreasyon alani uzerinde calisilmistir. Yaklasik 65 ha olan ve golet cevresini olusturan calisma alaninin potansiyel ve gercek erozyon risk haritalari CORINE metodolojisine gore CBS teknolojileri kullanilarak hazirlanmistir. Bunun icin araziden 10 adet yuzey ornegi ve ayrica acilan 4 adet profilden alinan toprak orneklerinde gerekli olan fiziksel ve kimyasal toprak analizleri yapilmistir. Calismadaki potansiyel erozyon risk haritasi sonuclarina gore toplam alanin % 10’unda potansiyel erozyon riski yok, % 9’unda dusuk potansiyel erozyon riski, % 66’sinda orta potansiyel erozyon riski, % 15’inde ise yuksek potansiyel erozyon riski oldugu bulunmustur. Gercek erozyon risk haritasi sonuclarina gore ise toplam alanin % 10’unda gercek erozyon riski yok, % 2’sinde dusuk, % 24’unde orta ve % 64’unde yuksek gercek erozyon riski oldugu belirlenmistir. Calisma alaninda bulunan dogal bitki ortusunun erozyonu buyuk olcude onledigi gorulmustur. Dogal bitki ortusunun tahribati ve tarim yapilan alanlarda toprak islemeden dolayi erozyon miktari buyuk olcude artmaktadir.

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (A... more In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (Aspergillus niger), species on the aggregate stability of a clay loam soil mixed and non mixed by peat were investigated. The inoculated and non inoculated samples were incubated at 20 ± 1°C for 1, 30, 60 and 90 days, then, at the end of each incubation period, aggregate stabilities were determined. At the end of second incubation period, maximum aggregate stabilities were obtained at the inoculated and non inoculated and mixed peat and non mixed peat soil samples, and this differences were found significant by statistically (P < 0.05). At the end of after second incubation periods, aggregate stabilities were decreased. Fungus caused in higher inrease at aggregate stabilities than bacteria. It was found that aggregate stabilities of soils mixed by peat lower than non mixed by peat.

Imported moss peat (IMP) and native peat (NAP) that is taken from Akgöl/Turkey were used in the g... more Imported moss peat (IMP) and native peat (NAP) that is taken from Akgöl/Turkey were used in the growth medium of primula (Primula obconica) plants. Five different growth media were prepared using IMP and NAP, and some of their basic chemical and physical properties were determined. Then, the effects of media characteristics on nutrient contents of primula plant were evaluated. All growth media was found inadequate in concentration for water soluble nutrients NO3-N, P, K, Fe and Zn but other nutrients were acceptable levels. Bulk density (BD) of growing media was found between 0.071-0.139 g cm. When the ratio of NAP was increased in mixtures, BD also increased. Moreover, the growth media was prepared with IMP and NAP had enough aeration capacity (AC), low available water content (AWC), and very low water buffering capacity (WBC). Cation exchange capacity (CEC) values were determined as 83.32-105.70 me 100 g. pH and EC of the media varied between 4.56-5.88 and 0.391.00 dS m, respectiv...

Bu arastirmada, humik asidin farkli kil tipine sahip topraklarda potasyum fiksasyonu uzerine olan... more Bu arastirmada, humik asidin farkli kil tipine sahip topraklarda potasyum fiksasyonu uzerine olan etkisi arastirilmistir. Bu amacla, kum, kil tin ve kil bunyeye sahip, smektit+klorit, smektit ve smektit+illit tipi kil iceren toprak ornekleri kullanilmistir. Toprak ornekleri kurutulup, elendikten sonra 400 cm 3 hacimli plastik kaplara doldurulmustur. K humat formundaki humik asit (HA) 0, 100, 200, 400 ve 800 ppm K iceren duzeylerde topraklara uygulanmistir. Toprak ornekleri 30 ve 60 gun sureyle inkubasyona birakilmistir. Inkubasyon sonunda toprak orneklerinde fikse edilen potasyum miktarlari belirlenmistir. Elde edilen sonuclar, HA ‘nin topraklarin K fiksasyonlarini onemli miktarda arttirdigini gostermistir (p<0.05). dogal olarak fikse edilmis en yuksek potasyum degerleri kil tin bunyeli smektit tipi kilin hakim oldugu toprakta belirlenmistir. K fiksasyonu butun HA dozlarinda Inkubasyon suresine bagli olarak onemli miktarda azalmistir (P<0.05).

Pamukkale University Journal of Engineering Sciences, 1996

Bu arastirmada, killi tinli bir topragin toplam bosluklar yuzdesi, havalanma porozitesi, yarayisl... more Bu arastirmada, killi tinli bir topragin toplam bosluklar yuzdesi, havalanma porozitesi, yarayisli su miktari ve su iletkenligi gibi fiziksel ozelliklerinde sikisma sonucunda olusan degismelere organik toprakla karistirmanin etkisi incelenmistir. Topraga, % 0, % 1, % 2 ve % 4 oranlarinda organik toprak ilave edilerek, karisimlar, 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 ve 3.95 kg/cm2 lik sikismaya maruz birakilmislar ve sikistirilan orneklerin deginilen fiziksel ozellikleri belirlenmistir. Sikisma ile karisimlarin, toplam bosluklar yuzdeleri, havalanma poroziteleri, yarayisli su miktarlari ve su gecirgenliklerinin azalma gosterdikleri, ancak, % 4 oraninda organik toprakla karistirilmis orneklerde butun sikisma duzeylerinde, yarayisli su miktarlari haric, diger ozelliklerin olumlu yonde etkilendigi saptanmistir.

Pamukkale University Journal of Engineering Sciences, 1997

In this research, the effect of different compaction durations on changes of total pore spaces, a... more In this research, the effect of different compaction durations on changes of total pore spaces, available water content, aeration porosity and hydraulic conductivity of a compacted clay loam soil were investigated. Soil samples were compacted at compaction levels of 0 kg/cm2 , 1.98 kg/cm2 and 3.00 kg/cm2 for 1, 2 and 4 minutes, then, above mentioned physical properties of soil samples were determined. Total pore spaces, available water content, aeration porosity and hydraulic conductivity of soil samples were not significantly affected from the compaction durations, but significantly decreased with increasing compaction levels.

Tarım Bilimleri Dergisi, 1996

Pamukkale University Journal of Engineering Sciences, 1997

In this research, the effect of different compaction durations on changes of total pore spaces, a... more In this research, the effect of different compaction durations on changes of total pore spaces, available water content, aeration porosity and hydraulic conductivity of a compacted clay loam soil were investigated. Soil samples were compacted at compaction levels of 0 kg/cm2 , 1.98 kg/cm2 and 3.00 kg/cm2 for 1, 2 and 4 minutes, then, above mentioned physical properties of soil samples were determined. Total pore spaces, available water content, aeration porosity and hydraulic conductivity of soil samples were not significantly affected from the compaction durations, but significantly decreased with increasing compaction levels.

Istanbul University - DergiPark, Jun 30, 2022

Selçuk Üniversitesi Ziraat Fakültesi Dergisi (:Selçuk Tarım ve Gıda Bilimleri Dergisi), 2000

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effect of organic soil on changes in total pore space, aeration porosity, a... more In this research, the effect of organic soil on changes in total pore space, aeration porosity, available water content and hydraulic conductivity of a compacted clay loam were investigated. By adding organic soil at rates of 0 %, 1 %, 2 % and 4 % to soil, mixtures were compacted at compaction levels of 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 and 3.95 kg/cm2 Some physical properties of compacted soil were determined. Compaction decreased total pore space, areation porosity, available water content and hydraulic conductivity, but in samples with the mixing rate of 4 %, all properties inspected were affected positively in all compaction levels, except available water content

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (A... more In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (Aspergillus niger), species on the aggregate stability of a clay loam soil mixed and non mixed by peat were investigated. The inoculated and non inoculated samples were incubated at 20 ± 1°C for 1, 30, 60 and 90 days, then, at the end of each incubation period, aggregate stabilities were determined. At the end of second incubation period, maximum aggregate stabilities were obtained at the inoculated and non inoculated and mixed peat and non mixed peat soil samples, and this differences were found significant by statistically (P < 0.05). At the end of after second incubation periods, aggregate stabilities were decreased. Fungus caused in higher inrease at aggregate stabilities than bacteria. It was found that aggregate stabilities of soils mixed by peat lower than non mixed by peat.

Pamukkale University Journal of Engineering Sciences, 1996

In this research, degree of decomposition, cation exchange capacity (CEC) and organic matter rela... more In this research, degree of decomposition, cation exchange capacity (CEC) and organic matter relationships in peats of Turkey taken from 0-20 cm, 20-40 cm and 40-60 cm depths of 14 different regions were investigated. It was determined some correlations between decomposition degree and CEC, and also between organic matter and CEC. Decomposition increased as CEC and organic matter content increased, and organic matter affected CEC, positively. Those relationships were ascertained by statistical analyses.

Environmental Geology, 2008

Tarım Bilimleri Dergisi, 1998

In this study, the effects of peat and sand amended spent mushroom compcst (SMC) on grov ı ing of... more In this study, the effects of peat and sand amended spent mushroom compcst (SMC) on grov ı ing of tomato(Lycopersicon escelantum Mili. cv.H 2274.) were investigated, and 100% Peat and SMC, mixtures of SMC with 25%, 50%, 75% Peat, and 50% SMC + 25% Peat + 25% Sand and 50% Peat + 25% SMC + 25% Sand were used as growing media. Plant growing in SMC mixing with peat and sand was compared with 100 % Peat as control. 25% P + 75% SMC was ascertained the most appropriate mixture for plant growing in SMC mixtures. Shoot and root dry weights of control was found higher than other treatments. There was no statistical difference among 100% SMC, 50% Peat + 50% SMC and 75% Peat + 25% SMC whereas sand significantly negatively affected plant growth (P< 0.01).

Pamukkale University Journal of Engineering Sciences, 1996

Bu araştırmada, killi tınlı bir toprağın toplam boşluklar yüzdesi, havalanma porozitesi, yarayışl... more Bu araştırmada, killi tınlı bir toprağın toplam boşluklar yüzdesi, havalanma porozitesi, yarayışlı su miktarı ve su iletkenliği gibi fiziksel özelliklerinde sıkışma sonucunda oluşan değişmelere organik toprakla karıştırmanın etkisi incelenmiştir. Toprağa, % 0, % 1, % 2 ve % 4 oranlarında organik toprak ilave edilerek, karışımlar, 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 ve 3.95 kg/cm2 lik sıkışmaya maruz bırakılmışlar ve sıkıştırılan örneklerin değinilen fiziksel özellikleri belirlenmiştir. Sıkışma ile karışımların, toplam boşluklar yüzdeleri, havalanma poroziteleri, yarayışlı su miktarları ve su geçirgenliklerinin azalma gösterdikleri, ancak, % 4 oranında organik toprakla karıştırılmış örneklerde bütün sıkışma düzeylerinde, yarayışlı su miktarları hariç, diğer özelliklerin olumlu yönde etkilendiği saptanmıştır.

Abstract: The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitr... more Abstract: The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitrogen mineralisation of urea-treated and untreated soils were investigated. Soils were compacted at compaction levels of O kgcm-2, 2 kgcm-2 and 4 kgcm-2 and incubated for 28 days. The changes in urease enzyme activity, CO 2 evaluation and nitrogen mineralization were determined during incubation periods. Urease enzyme activity was decreased significantly (P<0.05) in all samples, but it was observed that there was a negative effect of compaction on urease enzyme activity and CO 2 evaluation in urea-treated soils. Depending on incubation peroids, urea-treated soils had 5 times more NH 4 +-N and 4 times more NO 3--N than untreated soils. Furthermore, compaction induced mitrification in both groups (P<0.05). Key Words: Compaction, urease enzyme activity, carbon dioxide evaluation, nitrogen mineralisation

Pamukkale University Journal of Engineering Sciences, 1995

Some physical and chemical properties of tobacco dust, grape marc and mushroom compost, which con... more Some physical and chemical properties of tobacco dust, grape marc and mushroom compost, which contain high organic matter, were as plant growth medium investigated. According to research results, the some physical properties of all wastes were found insufficient, although, nutrient contents were found very high.

Communications in Soil Science and Plant Analysis, 2021

It is necessary to know the effect of organic matter on soil physical properties for successful s... more It is necessary to know the effect of organic matter on soil physical properties for successful soil management. A short-term incubation study was carried out to investigate the effects of different compost materials on soil aggregation and mechanical properties. Compost materials derived from cattle, sheep, poultry manure, plant residues, and a blend of an equal amount of those residues/wastes (called as mixture) were mixed with soil at doses of 1%, 2%, 3% and 4% with control treatment and subjected to a 60-day incubation period. It was revealed that compost materials significantly increased the values of water-stable aggregate (WSA), organic carbon (OC) and moisture content at tension values of pF 0 (saturation), pF 1.7 (aeration porosity), pF 2.54 (field capacity) and pF 4.2 (permanent wilting point), as well as the hydraulic conductivity (HC) and liquid limit (LL) values; however, they decreased the bulk density (BD) and coefficient of linear extensibility (COLE) values. On the ...

Türkiye Tarımsal Araştırmalar Dergisi, 2016

Bu calismada, Ankara Ili Kecioren Ilcesi Kosrelik Goleti Kirsal Rekreasyon alani uzerinde calisil... more Bu calismada, Ankara Ili Kecioren Ilcesi Kosrelik Goleti Kirsal Rekreasyon alani uzerinde calisilmistir. Yaklasik 65 ha olan ve golet cevresini olusturan calisma alaninin potansiyel ve gercek erozyon risk haritalari CORINE metodolojisine gore CBS teknolojileri kullanilarak hazirlanmistir. Bunun icin araziden 10 adet yuzey ornegi ve ayrica acilan 4 adet profilden alinan toprak orneklerinde gerekli olan fiziksel ve kimyasal toprak analizleri yapilmistir. Calismadaki potansiyel erozyon risk haritasi sonuclarina gore toplam alanin % 10’unda potansiyel erozyon riski yok, % 9’unda dusuk potansiyel erozyon riski, % 66’sinda orta potansiyel erozyon riski, % 15’inde ise yuksek potansiyel erozyon riski oldugu bulunmustur. Gercek erozyon risk haritasi sonuclarina gore ise toplam alanin % 10’unda gercek erozyon riski yok, % 2’sinde dusuk, % 24’unde orta ve % 64’unde yuksek gercek erozyon riski oldugu belirlenmistir. Calisma alaninda bulunan dogal bitki ortusunun erozyonu buyuk olcude onledigi gorulmustur. Dogal bitki ortusunun tahribati ve tarim yapilan alanlarda toprak islemeden dolayi erozyon miktari buyuk olcude artmaktadir.

Pamukkale University Journal of Engineering Sciences, 1996

In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (A... more In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (Aspergillus niger), species on the aggregate stability of a clay loam soil mixed and non mixed by peat were investigated. The inoculated and non inoculated samples were incubated at 20 ± 1°C for 1, 30, 60 and 90 days, then, at the end of each incubation period, aggregate stabilities were determined. At the end of second incubation period, maximum aggregate stabilities were obtained at the inoculated and non inoculated and mixed peat and non mixed peat soil samples, and this differences were found significant by statistically (P < 0.05). At the end of after second incubation periods, aggregate stabilities were decreased. Fungus caused in higher inrease at aggregate stabilities than bacteria. It was found that aggregate stabilities of soils mixed by peat lower than non mixed by peat.

Imported moss peat (IMP) and native peat (NAP) that is taken from Akgöl/Turkey were used in the g... more Imported moss peat (IMP) and native peat (NAP) that is taken from Akgöl/Turkey were used in the growth medium of primula (Primula obconica) plants. Five different growth media were prepared using IMP and NAP, and some of their basic chemical and physical properties were determined. Then, the effects of media characteristics on nutrient contents of primula plant were evaluated. All growth media was found inadequate in concentration for water soluble nutrients NO3-N, P, K, Fe and Zn but other nutrients were acceptable levels. Bulk density (BD) of growing media was found between 0.071-0.139 g cm. When the ratio of NAP was increased in mixtures, BD also increased. Moreover, the growth media was prepared with IMP and NAP had enough aeration capacity (AC), low available water content (AWC), and very low water buffering capacity (WBC). Cation exchange capacity (CEC) values were determined as 83.32-105.70 me 100 g. pH and EC of the media varied between 4.56-5.88 and 0.391.00 dS m, respectiv...

Bu arastirmada, humik asidin farkli kil tipine sahip topraklarda potasyum fiksasyonu uzerine olan... more Bu arastirmada, humik asidin farkli kil tipine sahip topraklarda potasyum fiksasyonu uzerine olan etkisi arastirilmistir. Bu amacla, kum, kil tin ve kil bunyeye sahip, smektit+klorit, smektit ve smektit+illit tipi kil iceren toprak ornekleri kullanilmistir. Toprak ornekleri kurutulup, elendikten sonra 400 cm 3 hacimli plastik kaplara doldurulmustur. K humat formundaki humik asit (HA) 0, 100, 200, 400 ve 800 ppm K iceren duzeylerde topraklara uygulanmistir. Toprak ornekleri 30 ve 60 gun sureyle inkubasyona birakilmistir. Inkubasyon sonunda toprak orneklerinde fikse edilen potasyum miktarlari belirlenmistir. Elde edilen sonuclar, HA ‘nin topraklarin K fiksasyonlarini onemli miktarda arttirdigini gostermistir (p<0.05). dogal olarak fikse edilmis en yuksek potasyum degerleri kil tin bunyeli smektit tipi kilin hakim oldugu toprakta belirlenmistir. K fiksasyonu butun HA dozlarinda Inkubasyon suresine bagli olarak onemli miktarda azalmistir (P<0.05).

Pamukkale University Journal of Engineering Sciences, 1996

Bu arastirmada, killi tinli bir topragin toplam bosluklar yuzdesi, havalanma porozitesi, yarayisl... more Bu arastirmada, killi tinli bir topragin toplam bosluklar yuzdesi, havalanma porozitesi, yarayisli su miktari ve su iletkenligi gibi fiziksel ozelliklerinde sikisma sonucunda olusan degismelere organik toprakla karistirmanin etkisi incelenmistir. Topraga, % 0, % 1, % 2 ve % 4 oranlarinda organik toprak ilave edilerek, karisimlar, 0 kg/cm2, 0.21 kg/cm2, 1.98 kg/cm2 ve 3.95 kg/cm2 lik sikismaya maruz birakilmislar ve sikistirilan orneklerin deginilen fiziksel ozellikleri belirlenmistir. Sikisma ile karisimlarin, toplam bosluklar yuzdeleri, havalanma poroziteleri, yarayisli su miktarlari ve su gecirgenliklerinin azalma gosterdikleri, ancak, % 4 oraninda organik toprakla karistirilmis orneklerde butun sikisma duzeylerinde, yarayisli su miktarlari haric, diger ozelliklerin olumlu yonde etkilendigi saptanmistir.

Pamukkale University Journal of Engineering Sciences, 1997

In this research, the effect of different compaction durations on changes of total pore spaces, a... more In this research, the effect of different compaction durations on changes of total pore spaces, available water content, aeration porosity and hydraulic conductivity of a compacted clay loam soil were investigated. Soil samples were compacted at compaction levels of 0 kg/cm2 , 1.98 kg/cm2 and 3.00 kg/cm2 for 1, 2 and 4 minutes, then, above mentioned physical properties of soil samples were determined. Total pore spaces, available water content, aeration porosity and hydraulic conductivity of soil samples were not significantly affected from the compaction durations, but significantly decreased with increasing compaction levels.