The Use of Controlled Release Fertilizer in No-tillage Maize Growth

摘要

Experiments were carried respectively on no-tillage cinnamon soil of Yan Zhou and chao soil of Yu Cheng, resin coated urea were used as the controlled release fertilizer. Analyze the series outcomes we got following elementary results: The use of resin coated urea could significant reduce nitrate accumulation on soil section plane, besides nitrate accumulation continues decrease with the control time extending, which can do benefit to circumstance. Mixed seed fertilizer experiment show: There are no negative effects in maize germinating using resin coated urea as seed fertilizer, but merely common urea or that mixed with resin coated urea used as seed fertilizer, severe intimidate comes up, bud even can survive. Equal nitrogen proportion condition, gain higher maize yield when resin coated urea were use. The results of different proportion of common urea and resin coated urea experiment show that: the maximal leaf area of maize rise with common urea proportion enhance in fertilizer but no significant affect to plant height.