Details

Autor(en) / Beteiligte

• Im, Jong-Uk
• Jeon, Seong-Hwa
• Oh, Young-a
• Lim, Hwan-Kyu
• Lee, Yong Bok

Titel

Evaluation of Agrotain Efficiency for Suppression of Ammonium Volatilization Under Chinese Cabbage Cultivation Fields

Ist Teil von

• 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 2017, 50(1), , pp.49-55

Ort / Verlag

한국토양비료학회

Erscheinungsjahr

2017

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Chinese cabbage cultivation and ammonia volatilization experiments were done to evaluate the efficiency of Agrotain coated urea (GSP 80% + Agro; GSP 100% + Agro) against conventional urea (GSP 80%; GSP 100%). Fresh weight of Chinese cabbage were 17.2% and 7.3% higher in the treatments that received GSP 80% + Agro and GSP 100% + Agro, respectively, of those from the treatments that received urea alone. Likewise, the nitrogen use efficiency of Chinese cabbage in the treatments that received Agrotain coated urea were significantly higher at the rate of 3.5% (GSP 80% + Agro) and 1.9% (GSP 100% + Agro) compared to urea alone treatments. Ammonia emission was substantially higher at the rate of $107.6N\;mg\;chamber^{-1}$ with the application of only GSP 100%. However, nearly 28.3% of ammonia emission was considerably reduced with the use of Agrotain coated urea. Hence, we recommend the use of Agrotain coated urea in conventional farming for increased crop yield as well as simultaneous reduction of nitrogenous fertilizer use.