摘要
以甘薯、玉米为材料,采用裂区设计,初步探索了氮肥增效剂在南方热带地区的农用效应。结果表明:高量水平的氮肥增效剂对甘薯和玉米的增产效果都达到显著,甚至是极显著;氮肥增效剂还能有效抑制氮肥中氨的挥发,以施纯氮量75.0、112.5kg/hm2,且加增效剂的效果最显著;氮肥增效剂可以在一定程度上改变土壤中有效氮的释放状况,更利于玉米穗期生长对养分的需求,以施纯氮量112.5kg/hm2,且加增效剂的效果最佳。
Sweet potato and corn were used as materials with split-plot design to preliminarily explore the agricultural effects of nitrogen fertilizer potentiator applied in the tropical region of South China. The results showed that nitrogen fertilizer potentiator application at high level significantly increased the yields of sweet potato and com. volatilization of the ammonia the effective nitrogen release period. Nitrogen fertilizer potentiator application also effectively restrained contained in the nitrogen fertilizer. Nitrogen fertilizer status, which was beneficial to the corn for nutrient potentiator changed demand in spiking period.
出处
《热带农业科学》
2005年第4期26-29,43,共5页
Chinese Journal of Tropical Agriculture
基金
中国科学院沈阳应用生态研究所资助
关键词
氮肥增效剂
产量
氨挥发
有效氮
nitrogen fertilizer potentiator
yield
ammonia volatilization
effective nitrogen
