摘要
田间试验研究结果表明:在吉林省冲积土上,施用钾肥对水稻有明显的增产效果。施用K2O 65kg/hm2,相对增产值为7.34%,化肥利用率达53.6%,千粒重和穗粒数最高,为最佳用量。
Results of field experiment showed that on the alluvial soils of Jilin Province,potash fertilizer applications could have a obvious yield-increasing effect on rice,and the optimum potash fertilizer rate was K2O75 kg/ha,whose relative yield-increasing value was 7.34%,and the fertilizer utilization rate reached 53.6%,1 000-grains weights and grain number per spike was the highest.
出处
《吉林农业科学》
CSCD
2009年第5期25-27,共3页
Journal of Jilin Agricultural Sciences
基金
中加合作项目(IPNI)平衡施肥示范计划
关键词
钾肥
用量
水稻产量
Potash fertilizer
Optimum rate
Rice yields
