稻田施用钾肥的增产效应研究  

Effect of K-fertilizer Used in Rice Field on the Incensement of Rice Yield

作　　者：殷文[1] 马晓燕[1] 黄新平[1] 蔡宏芹 

机构地区：[1]江苏省泰兴市农业局,泰兴225400

出　　处：《安徽农业科学》2001年第3期368-369,共2页Journal of Anhui Agricultural Sciences

摘　　要：随着耕作制度的改革和种植时间的推移 ,泰兴市作物缺钾症状日趋明显 ,部分地区试验结果表明 :氯化钾作基肥一次施用具有明显的增产效应。土壤钾素已成为“最小养分”。泰兴市水稻作物氯化钾的最佳用量为 2 17.5kg/hm2 。The lacking in potassium was more and more obvious with the reform of cropping system and the delay of planting. The experimental result indicated that potassium chloride as the basal dressing had significant efficacy on the increase of crop yield. The most suitable amount of potassium chloride applied was 217.5kg/hm 2.

关 键 词：钾肥 水稻 施用量 增产效应 农艺性状 粒重 

分 类 号：S511[农业科学—作物学] S143.3