摘要
进行了河砂泥稻田钾肥施用量对晚稻产量的影响研究。结果表明:在施用干稻草300 kg/667m2,氮10 kg/667m2,磷2.4kg/667m2基础上,最佳晚稻钾肥施用量为5 kg/667m2,肥料产投比为1.32,晚稻产量可达471.8 kg/667m2。
Effect of fertilizer rate of potash fertilizer on yield of late rice in alluvial sandy soil field was researched through experiment. The results showed that on the basis of applying dry straw of 4 500 kg/hm^2, nitrogen of 150 kg/hm^2 and phosphorus of 36 kg/hm^2, the optimum fertilizer rate of potash fertilizer for late rice was 75 kg/hm^2, thereby the ratio of output to input was 1.32, and the yield of late rice reached 7 077 kg/hm^2.
出处
《湖南农业科学》
2011年第12期71-72,共2页
Hunan Agricultural Sciences
基金
湖南省测土配方施肥补充项目(2007)
关键词
钾肥
施用量
晚稻
河砂泥
potash fertilizer
fertilizer rate
late rice
alluvial sandy soil
