Amonyumlu gübreleme ve nitrifikasyon inhibitörünün kaya fosfatın çözünürlüğü üzerine etkisi
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Date
2004
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Uludağ Üniversitesi
Abstract
Bu çalışma, topraklara uygulanan kaya fosfatlarındaki fosforun yarayışlılığı üzerine nitrifikasyon inhibitörü ile birlikte uygulanan amonyum formundaki azotun etkinliğini belirlemek amacıyla yapılmıştır. Sera denemesi; tesadüf parsellerinde, 4 tekrarlamalı deneme desenine göre düzenlenmiştir. Topraklara 3 farklı dozda NH4SO4 (0.5,1.0 ve 2.0g N 3 kg toprak-1), 3 farklı dozda kaya fosfat (0.5,1.0 ve 2.0g P 3 kg toprak-1) ve 3 farklı dozda nitrifikasyon inhibitörü disiyandiamid (0.05, 0.1 ve 0.2 g DCD 3 kg toprak–1) uygulanmıştır. DCD’in etkinliğini görebilmek amacıyla N ve P uygulamaları DCD ile karıştırılarak ve karıştırılmadan uygulanmıştır. Araştırma sonuçlarına göre; artan N dozlarına bağlı olarak saksılardaki toprakların pH’larında azalma görülmüş fakat kaya fosfatların topraktaki çözünürlüğünde ve bitkilerin fosfor içeriklerinde deneme konularına göre önemli bir değişimin olmadığı gözlenmiştir. Azotla birlikte uygulanan nitrifikasyon inhibitörünün, nitrifikasyon inhibitörü uygulanmayanlara göre, bitkilerin N içeriklerini artırdıkları görülmüştür.
This study was conducted to determine the effects of the ammonium applied with the nitrification inhibitor on P availability from rock phosphate. A greenhouse experiment was implemented in randomized plots experimental design with four replications. In the research NH4SO4 and rock phosphate were applied to the soil at the rates of 0.5, 1.0 and 2.0g N 3 kg soil-1 and 0.5, 1.0 and 2.0g P 3 kg soil-1. As nitrification inhibitor; dicyandiamide was applied to soil at the rates of 0.05, 0.1 and 0.2g DCD 3 kg soil-1. Each combined dose of N and rock phosphate was mixed into the soil with DCD and without DCD to evaluate the effect of DCD. According to the results obtained from the experiment, solubilization of rock phosphates in the soils and P content in the plants did not change significantly while pH of the soils decreased by increasing rates of N. Application of N with DCD increased meaningfully N content of the plants as compared to the applications which were not applied DCD in combination to N.
This study was conducted to determine the effects of the ammonium applied with the nitrification inhibitor on P availability from rock phosphate. A greenhouse experiment was implemented in randomized plots experimental design with four replications. In the research NH4SO4 and rock phosphate were applied to the soil at the rates of 0.5, 1.0 and 2.0g N 3 kg soil-1 and 0.5, 1.0 and 2.0g P 3 kg soil-1. As nitrification inhibitor; dicyandiamide was applied to soil at the rates of 0.05, 0.1 and 0.2g DCD 3 kg soil-1. Each combined dose of N and rock phosphate was mixed into the soil with DCD and without DCD to evaluate the effect of DCD. According to the results obtained from the experiment, solubilization of rock phosphates in the soils and P content in the plants did not change significantly while pH of the soils decreased by increasing rates of N. Application of N with DCD increased meaningfully N content of the plants as compared to the applications which were not applied DCD in combination to N.
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Keywords
Kaya fosfat, Amonyum, Nitrifikasyon inhibitörü, Rock phosphate, Ammonium, Nitrification inhibitor
Citation
Çelik, H. vd. (2004). "Amonyumlu gübreleme ve nitrifikasyon inhibitörünün kaya fosfatın çözünürlüğü üzerine etkisi". Uludağ Üniversitesi Ziraat Fakültesi Dergisi, 18(2), 97-108.