SELCUK GOCMEZ | Adnan Menderes University (original) (raw)
Papers by SELCUK GOCMEZ
Tekirdağ Ziraat Fakültesi dergisi, Aug 12, 2023
Sürdürülebilir tarımda toprağın verimliliği, ürünün verim gücünden daha önemlidir. Esasta ana öğe... more Sürdürülebilir tarımda toprağın verimliliği, ürünün verim gücünden daha önemlidir. Esasta ana öğe topraktır. Toprağın verimliliği, bitkiler yetiştirmenin en önemli şartıdır. Toprakta bitki besin maddelerinin düşük düzeyde olması, yetersiz ve bilinçsiz kültürel işlemler (sulama, gübreleme, ilaçlama vb.) bitkinin sağlıklı gelişimini olumsuz etkiler. Verimli bir toprağın 0.45'inde mineral madde, 0.25'inde su, 0.25'inde oksijen ve 0.05'inde organik olması istenmektedir. Bu koşulları sağlamadığı durumlarda toprağın verim gücü düşük olmaktadır. İdeal bir tarım toprağında, tekstür, su tutma kapasitesi, toprak derinliği, pH, tuz ve kireç içeriği ile organik madde miktarı başlıca verimlilik göstergesidir. Verimliliğin düşük olduğu durumlarda, ekim nöbeti sistemlerinin uygulanması (bölgeye göre), bitki atıklarının yakılmasının önlenmesi, eğimli arazilerde eğime dik toprak işleme, toprak analizine dayalı gübreleme, organik maddeyi arttırıcı önlemler (yeşil gübreleme, kompost, hayvan gübresi uygulamaları) gibi yöntemlerle verimlilik arttırılabilir. Araştırma, Manisa ili Demirci ve Selendi ilçeleri tarım alanlarında toprakların verimlilik potansiyelini belirlemek amacıyla yürütülmüştür. Çalışma çerçevesinde, ilçelerin tarım alanlarını içine alacak şekilde, 0-20 cm derinlikten, 2500 mx2500 m gridlere bölünerek 83 noktadan örnekleme yapılmıştır. Örnekleme yapılan noktalarda; bünye, pH, EC, kireç, organik madde, makro (fosfor, potasyum, kalsiyum, magnezyum) ve mikro element (demir, bakır, çinko, mangan) analizleri yapılmıştır. Sonuçlara göre, bölge üretim alanlarındaki toprakların %26.51'inin kumlu tın (SL), %24.10'unun killi tın (CL) bünyede, %40.96'sının nötr, %38.55'inin hafif alkali, tamamının tuzsuz, %37.35'inin az kireçli, %43.37'sinin organik madde içeriği az, %53.01'inde fosfor, %43.37'sinde magnezyum, %86.75'inde bakır yeter düzeyde, %61.45'inde potasyum, %66.27'sinde kalsiyum fazla seviyede, %65.06'sında demir yüksek, %48.19'unda çinko çok az ve %44.58'inde manganın az olduğu ortaya konulmuştur. Toprak özellikleri belirlendikten sonra, CBS sistemlerinde IDW yöntemi ile dağılım haritaları elde edilmiştir.
DergiPark (Istanbul University), Jun 1, 2002
Bu çalışmada kentsel ve endüstriyel atıklarla kirletilmiş olan Nilüfer Çayı ile sulanan tarım ara... more Bu çalışmada kentsel ve endüstriyel atıklarla kirletilmiş olan Nilüfer Çayı ile sulanan tarım arazilerinden toprak örnekleri alınarak, bu toprak örneklerinin mikrobiyolojik aktivite düzeyi belirlenmiş ve topraklardaki ağır metal miktarları ile mikrobiyolojik aktivite arasındaki ilişki araştırılmıştır. Bu amaçla Nilüfer Çayı ile sulanan Bursa Ovası şeftali bahçelerinden 21 adet toprak örneği sulama sonrası dönemde 0-30 cm ve 30-60 cm derinliklerden alınmıştır. Araştırma sonuçlarına göre; araştırma topraklarındaki mikroorganizmaların sayı ve aktivitesi üzerinde en fazla olumsuz etkiye sahip olan element Ni olmuştur. Topraklardaki Ni miktarlarının hemen hemen hepsinin sınır değerin üzerinde saptanması, büyük olasılıkla bu olumsuz etkinin ortaya çıkmasına neden olmuştur. Araştırma topraklarının genelde organik madde miktarı düşük ve kum fraksiyonu yüksek topraklar olması nedeniyle sınır değerlerin altındaki konsantrasyonlarda bile bazı elementler mikroorganizmalara olumsuz etkiler yapmıştır. Araştırılan toprakların 0-30 cm derinliğinde mevcut element konsantrasyonlarına en hassas mikrobiyel gösterge mikrobiyel biyomas olurken, 30-60 cm derinlikte katalaz enzimi Pb hariç diğer tüm elementler tarafından olumsuz etkilenen bir aktivite olmuştur.In this study, in order to determine the microbiological level and examine the relationship between the microbial activity and the heavy metal contents of the soils, samples were taken from the agricultural lands irrigated by Nilüfer River which is polluted by domestic and industrial wastes. With this purpose, after irrigation 21 soil samples were taken from 0-30 cm and 30-60 cm depths of peach orchards in Bursa Plain. According to the results, the.most toxic element on microbial activity in the soils was Ni. The fact that the presence of Ni over the upper permitted limit might be the cause of the negative effect. Since the research soil were poor in organic matter and had a high sand fraction, some of the elements which were even below the permitted limits negatively affected the microbial activity in those soils. In 0-30 cm soil depth, the most sensitive microbial index with respect to the existing element concentrations was microbial biomass and in 30-60 cm depth, all elements, excluding Pb, affected catalase activity negatively
International Symposium on Techniques to Control Salination for Horticultural Productivity, 2002
OENO One, 2020
Cost effective and environmentally friendly strategies in plant nutrition are prime consideration... more Cost effective and environmentally friendly strategies in plant nutrition are prime considerations for sustainable viticulture in the face of ever-increasing stress factors throughout the world. Therefore, the present study aimed to investigate the effects of applying different types of organic and inorganic material [control (C; no application), basaltic pumice (P), commercial dry compost (DC), pruning residue:farm manure mixture (1:2, v:v) compost (PR+FM), straw:farm manure mixture (1:2, v:v) compost (S+FM), pumice:dry compost (P+DC), pumice+straw:farm manure compost (P+(S+FM)) and pumice+pruning residue:farm manure compost (P+(PR+FM))] to ‘Black Magic’ grapevines on their agronomic and nutrient acquisition during two consecutive years: 2017 and 2018.The highest yield (6172 g/vine and 7874 g/vine) and cluster weight (411.4 g and 463.2 g) were obtained for the application of S+FM in both years. In terms of berry weight, the highest value was obtained for P+(PR+FM) in 2017, although...
OENO One
Cost effective and environmentally friendly strategies in plant nutrition are prime consideration... more Cost effective and environmentally friendly strategies in plant nutrition are prime considerations for sustainable viticulture in the face of ever-increasing stress factors throughout the world. Therefore, the present study aimed to investigate the effects of applying different types of organic and inorganic material [control (C; no application), basaltic pumice (P), commercial dry compost (DC), pruning residue:farm manure mixture (1:2, v:v) compost (PR+FM), straw:farm manure mixture (1:2, v:v) compost (S+FM), pumice:dry compost (P+DC), pumice+straw:farm manure compost (P+(S+FM)) and pumice+pruning residue:farm manure compost (P+(PR+FM))] to ‘Black Magic’ grapevines on their agronomic and nutrient acquisition during two consecutive years: 2017 and 2018.The highest yield (6172 g/vine and 7874 g/vine) and cluster weight (411.4 g and 463.2 g) were obtained for the application of S+FM in both years. In terms of berry weight, the highest value was obtained for P+(PR+FM) in 2017, although...
Erwerbs-Obstbau, 2019
In this study, olive tree has been cultivated by applying vermicompost as the organic fertilizer ... more In this study, olive tree has been cultivated by applying vermicompost as the organic fertilizer with different doses (0, 5, 10, 20, 40%) and single dose of chemical fertilizer (100% production material + chemical fertilizer) which is commonly used by the farmers of the region. During the experiment ’Gemlik’ olive has been grown in 36 pots with 6 applications, 3 replications and 2 seasons. The experiment was conducted in laboratory and under controlled conditions for 6 months. At the end of the third and sixth months, CO2-production analyses were applied to the production materials together with alkaline phosphatase and dehydrogenase enzyme activities. According to the experiment results, the effects of the production material applications on CO2 production, alkaline phosphatase and dehydrogenase enzyme activities have been considered as p < 0.01 significant statistically when the averages of 6‑month trial process were examined.
Tekirdağ Ziraat Fakültesi Dergisi
Disseminations of organic fertilizer use in olive sapling nursery is very important. When the sap... more Disseminations of organic fertilizer use in olive sapling nursery is very important. When the saplings are developed well at the beginning, this will be important for root development after planting to land, decreasing the future yield lowness, and even obtaining large amount of high quality olive grain and oil, therefore studies about this subject are essential. In this study, Gemlik olive (Olea europaea L. cv. Gemlik) variety saplings were grown with applications of different doses of the vermicompost that is an organic fertilizer (0, 5, 10, 20 and 40%) to production material and single dose of chemical fertilizer which is used commonly by planters (100% production material + chemical fertilizer). The micro nutrients content of the production material were analyzed. According to the results, the micro nutrients analysis of the production material used for the growth of olive saplings at the 3 rd and 6 th months was significant. Fe, Cu, Mn, Zn and B values as the average of all
egeweb.ege.edu.tr
... Toprak örneklerinde bünye Bouyoucos (6), toprak reaksiyonu Jackson (16) organik karbon Tinsle... more ... Toprak örneklerinde bünye Bouyoucos (6), toprak reaksiyonu Jackson (16) organik karbon Tinsley (26), asitte çözünür ağır metal miktarları ise kral suyu ... Bir elementin mikroorganizmalara zararlı bir etkide bulunabilmesi topraktaki bazı kimyasal özelliklere sıkı sıkıya bağlıdır. ...
Biological Agriculture & Horticulture, 2006
The temporal behaviour of soil microbial biomass C (SMBC) and the protease, urease, phosphatase a... more The temporal behaviour of soil microbial biomass C (SMBC) and the protease, urease, phosphatase and dehydrogenase activities were measured in the organic production of tomato and cucumber crops under greenhouse conditions. Soil was fertilized with either farmyard manure or poultry manure. Manures were applied either alone or with two biological preparations, E2001 and Allgrow Bioplasma. The effect of solarization on
Turk J Agric …, 2009
Abstract: Many recent studies from around the world have compared organic and conventional farmin... more Abstract: Many recent studies from around the world have compared organic and conventional farming systems in terms of soil properties. Microbial biomass and enzyme activity were compared in vineyard soils managed by organic and conventional practices under Mediterranean ...
Many recent studies from around the world have compared organic and conventional farming systems ... more Many recent studies from around the world have compared organic and conventional farming systems in terms of soil properties. Microbial biomass and enzyme activity were compared in vineyard soils managed by organic and conventional practices under Mediterranean conditions during the growing. Organic treatments were (i) green manure and farmyard manure at the rate of 30 t ha −1 (GM1), (ii) green manure and farmyard manure at the rate of 10 t ha −1 , plus E2001 EM Bio-polymer gel solution (GM2), and (iii) green manure plus E2001 EM Bio-polymer gel solution (GM3). Only mineral fertilizers and pesticides were used in the conventional system (CONV). Soil organic C and soil microbial biomass C (SMBC), and protease, urease, alkaline phosphatase, and dehydrogenase activity were significantly higher in the organic system than in the conventional system. The ratio of microbial biomass C to total organic C content (C mic /C org) was also higher in the organic plots. Total organic C content increased in the organic system by 13%-23% in comparison to the conventional system. Application of GM1 and GM2 resulted in greater microbial biomass and activity, as compared to the other management systems. SMBC was significantly correlated with dehydrogenase, protease, urease, and alkaline phosphatase. These results indicate that organic management positively affected biochemical properties, thus improving soil quality and productivity.
Tekirdağ Ziraat Fakültesi dergisi, Aug 12, 2023
Sürdürülebilir tarımda toprağın verimliliği, ürünün verim gücünden daha önemlidir. Esasta ana öğe... more Sürdürülebilir tarımda toprağın verimliliği, ürünün verim gücünden daha önemlidir. Esasta ana öğe topraktır. Toprağın verimliliği, bitkiler yetiştirmenin en önemli şartıdır. Toprakta bitki besin maddelerinin düşük düzeyde olması, yetersiz ve bilinçsiz kültürel işlemler (sulama, gübreleme, ilaçlama vb.) bitkinin sağlıklı gelişimini olumsuz etkiler. Verimli bir toprağın 0.45'inde mineral madde, 0.25'inde su, 0.25'inde oksijen ve 0.05'inde organik olması istenmektedir. Bu koşulları sağlamadığı durumlarda toprağın verim gücü düşük olmaktadır. İdeal bir tarım toprağında, tekstür, su tutma kapasitesi, toprak derinliği, pH, tuz ve kireç içeriği ile organik madde miktarı başlıca verimlilik göstergesidir. Verimliliğin düşük olduğu durumlarda, ekim nöbeti sistemlerinin uygulanması (bölgeye göre), bitki atıklarının yakılmasının önlenmesi, eğimli arazilerde eğime dik toprak işleme, toprak analizine dayalı gübreleme, organik maddeyi arttırıcı önlemler (yeşil gübreleme, kompost, hayvan gübresi uygulamaları) gibi yöntemlerle verimlilik arttırılabilir. Araştırma, Manisa ili Demirci ve Selendi ilçeleri tarım alanlarında toprakların verimlilik potansiyelini belirlemek amacıyla yürütülmüştür. Çalışma çerçevesinde, ilçelerin tarım alanlarını içine alacak şekilde, 0-20 cm derinlikten, 2500 mx2500 m gridlere bölünerek 83 noktadan örnekleme yapılmıştır. Örnekleme yapılan noktalarda; bünye, pH, EC, kireç, organik madde, makro (fosfor, potasyum, kalsiyum, magnezyum) ve mikro element (demir, bakır, çinko, mangan) analizleri yapılmıştır. Sonuçlara göre, bölge üretim alanlarındaki toprakların %26.51'inin kumlu tın (SL), %24.10'unun killi tın (CL) bünyede, %40.96'sının nötr, %38.55'inin hafif alkali, tamamının tuzsuz, %37.35'inin az kireçli, %43.37'sinin organik madde içeriği az, %53.01'inde fosfor, %43.37'sinde magnezyum, %86.75'inde bakır yeter düzeyde, %61.45'inde potasyum, %66.27'sinde kalsiyum fazla seviyede, %65.06'sında demir yüksek, %48.19'unda çinko çok az ve %44.58'inde manganın az olduğu ortaya konulmuştur. Toprak özellikleri belirlendikten sonra, CBS sistemlerinde IDW yöntemi ile dağılım haritaları elde edilmiştir.
DergiPark (Istanbul University), Jun 1, 2002
Bu çalışmada kentsel ve endüstriyel atıklarla kirletilmiş olan Nilüfer Çayı ile sulanan tarım ara... more Bu çalışmada kentsel ve endüstriyel atıklarla kirletilmiş olan Nilüfer Çayı ile sulanan tarım arazilerinden toprak örnekleri alınarak, bu toprak örneklerinin mikrobiyolojik aktivite düzeyi belirlenmiş ve topraklardaki ağır metal miktarları ile mikrobiyolojik aktivite arasındaki ilişki araştırılmıştır. Bu amaçla Nilüfer Çayı ile sulanan Bursa Ovası şeftali bahçelerinden 21 adet toprak örneği sulama sonrası dönemde 0-30 cm ve 30-60 cm derinliklerden alınmıştır. Araştırma sonuçlarına göre; araştırma topraklarındaki mikroorganizmaların sayı ve aktivitesi üzerinde en fazla olumsuz etkiye sahip olan element Ni olmuştur. Topraklardaki Ni miktarlarının hemen hemen hepsinin sınır değerin üzerinde saptanması, büyük olasılıkla bu olumsuz etkinin ortaya çıkmasına neden olmuştur. Araştırma topraklarının genelde organik madde miktarı düşük ve kum fraksiyonu yüksek topraklar olması nedeniyle sınır değerlerin altındaki konsantrasyonlarda bile bazı elementler mikroorganizmalara olumsuz etkiler yapmıştır. Araştırılan toprakların 0-30 cm derinliğinde mevcut element konsantrasyonlarına en hassas mikrobiyel gösterge mikrobiyel biyomas olurken, 30-60 cm derinlikte katalaz enzimi Pb hariç diğer tüm elementler tarafından olumsuz etkilenen bir aktivite olmuştur.In this study, in order to determine the microbiological level and examine the relationship between the microbial activity and the heavy metal contents of the soils, samples were taken from the agricultural lands irrigated by Nilüfer River which is polluted by domestic and industrial wastes. With this purpose, after irrigation 21 soil samples were taken from 0-30 cm and 30-60 cm depths of peach orchards in Bursa Plain. According to the results, the.most toxic element on microbial activity in the soils was Ni. The fact that the presence of Ni over the upper permitted limit might be the cause of the negative effect. Since the research soil were poor in organic matter and had a high sand fraction, some of the elements which were even below the permitted limits negatively affected the microbial activity in those soils. In 0-30 cm soil depth, the most sensitive microbial index with respect to the existing element concentrations was microbial biomass and in 30-60 cm depth, all elements, excluding Pb, affected catalase activity negatively
International Symposium on Techniques to Control Salination for Horticultural Productivity, 2002
OENO One, 2020
Cost effective and environmentally friendly strategies in plant nutrition are prime consideration... more Cost effective and environmentally friendly strategies in plant nutrition are prime considerations for sustainable viticulture in the face of ever-increasing stress factors throughout the world. Therefore, the present study aimed to investigate the effects of applying different types of organic and inorganic material [control (C; no application), basaltic pumice (P), commercial dry compost (DC), pruning residue:farm manure mixture (1:2, v:v) compost (PR+FM), straw:farm manure mixture (1:2, v:v) compost (S+FM), pumice:dry compost (P+DC), pumice+straw:farm manure compost (P+(S+FM)) and pumice+pruning residue:farm manure compost (P+(PR+FM))] to ‘Black Magic’ grapevines on their agronomic and nutrient acquisition during two consecutive years: 2017 and 2018.The highest yield (6172 g/vine and 7874 g/vine) and cluster weight (411.4 g and 463.2 g) were obtained for the application of S+FM in both years. In terms of berry weight, the highest value was obtained for P+(PR+FM) in 2017, although...
OENO One
Cost effective and environmentally friendly strategies in plant nutrition are prime consideration... more Cost effective and environmentally friendly strategies in plant nutrition are prime considerations for sustainable viticulture in the face of ever-increasing stress factors throughout the world. Therefore, the present study aimed to investigate the effects of applying different types of organic and inorganic material [control (C; no application), basaltic pumice (P), commercial dry compost (DC), pruning residue:farm manure mixture (1:2, v:v) compost (PR+FM), straw:farm manure mixture (1:2, v:v) compost (S+FM), pumice:dry compost (P+DC), pumice+straw:farm manure compost (P+(S+FM)) and pumice+pruning residue:farm manure compost (P+(PR+FM))] to ‘Black Magic’ grapevines on their agronomic and nutrient acquisition during two consecutive years: 2017 and 2018.The highest yield (6172 g/vine and 7874 g/vine) and cluster weight (411.4 g and 463.2 g) were obtained for the application of S+FM in both years. In terms of berry weight, the highest value was obtained for P+(PR+FM) in 2017, although...
Erwerbs-Obstbau, 2019
In this study, olive tree has been cultivated by applying vermicompost as the organic fertilizer ... more In this study, olive tree has been cultivated by applying vermicompost as the organic fertilizer with different doses (0, 5, 10, 20, 40%) and single dose of chemical fertilizer (100% production material + chemical fertilizer) which is commonly used by the farmers of the region. During the experiment ’Gemlik’ olive has been grown in 36 pots with 6 applications, 3 replications and 2 seasons. The experiment was conducted in laboratory and under controlled conditions for 6 months. At the end of the third and sixth months, CO2-production analyses were applied to the production materials together with alkaline phosphatase and dehydrogenase enzyme activities. According to the experiment results, the effects of the production material applications on CO2 production, alkaline phosphatase and dehydrogenase enzyme activities have been considered as p < 0.01 significant statistically when the averages of 6‑month trial process were examined.
Tekirdağ Ziraat Fakültesi Dergisi
Disseminations of organic fertilizer use in olive sapling nursery is very important. When the sap... more Disseminations of organic fertilizer use in olive sapling nursery is very important. When the saplings are developed well at the beginning, this will be important for root development after planting to land, decreasing the future yield lowness, and even obtaining large amount of high quality olive grain and oil, therefore studies about this subject are essential. In this study, Gemlik olive (Olea europaea L. cv. Gemlik) variety saplings were grown with applications of different doses of the vermicompost that is an organic fertilizer (0, 5, 10, 20 and 40%) to production material and single dose of chemical fertilizer which is used commonly by planters (100% production material + chemical fertilizer). The micro nutrients content of the production material were analyzed. According to the results, the micro nutrients analysis of the production material used for the growth of olive saplings at the 3 rd and 6 th months was significant. Fe, Cu, Mn, Zn and B values as the average of all
egeweb.ege.edu.tr
... Toprak örneklerinde bünye Bouyoucos (6), toprak reaksiyonu Jackson (16) organik karbon Tinsle... more ... Toprak örneklerinde bünye Bouyoucos (6), toprak reaksiyonu Jackson (16) organik karbon Tinsley (26), asitte çözünür ağır metal miktarları ise kral suyu ... Bir elementin mikroorganizmalara zararlı bir etkide bulunabilmesi topraktaki bazı kimyasal özelliklere sıkı sıkıya bağlıdır. ...
Biological Agriculture & Horticulture, 2006
The temporal behaviour of soil microbial biomass C (SMBC) and the protease, urease, phosphatase a... more The temporal behaviour of soil microbial biomass C (SMBC) and the protease, urease, phosphatase and dehydrogenase activities were measured in the organic production of tomato and cucumber crops under greenhouse conditions. Soil was fertilized with either farmyard manure or poultry manure. Manures were applied either alone or with two biological preparations, E2001 and Allgrow Bioplasma. The effect of solarization on
Turk J Agric …, 2009
Abstract: Many recent studies from around the world have compared organic and conventional farmin... more Abstract: Many recent studies from around the world have compared organic and conventional farming systems in terms of soil properties. Microbial biomass and enzyme activity were compared in vineyard soils managed by organic and conventional practices under Mediterranean ...
Many recent studies from around the world have compared organic and conventional farming systems ... more Many recent studies from around the world have compared organic and conventional farming systems in terms of soil properties. Microbial biomass and enzyme activity were compared in vineyard soils managed by organic and conventional practices under Mediterranean conditions during the growing. Organic treatments were (i) green manure and farmyard manure at the rate of 30 t ha −1 (GM1), (ii) green manure and farmyard manure at the rate of 10 t ha −1 , plus E2001 EM Bio-polymer gel solution (GM2), and (iii) green manure plus E2001 EM Bio-polymer gel solution (GM3). Only mineral fertilizers and pesticides were used in the conventional system (CONV). Soil organic C and soil microbial biomass C (SMBC), and protease, urease, alkaline phosphatase, and dehydrogenase activity were significantly higher in the organic system than in the conventional system. The ratio of microbial biomass C to total organic C content (C mic /C org) was also higher in the organic plots. Total organic C content increased in the organic system by 13%-23% in comparison to the conventional system. Application of GM1 and GM2 resulted in greater microbial biomass and activity, as compared to the other management systems. SMBC was significantly correlated with dehydrogenase, protease, urease, and alkaline phosphatase. These results indicate that organic management positively affected biochemical properties, thus improving soil quality and productivity.