论文部分内容阅读
通过在云南省陆良县四个坝区的水稻土壤上布置R323ROC设计的肥料效应试验,建立陆良县水稻N、P、K不同施肥量与产量关系的施肥模型,解析和模拟寻优结果表明,施N、P、K肥对水稻产量具有明显的增产作用,增产效果K>N>P;获得最高及最佳经济产量的施肥量为N90.15～329.85kg/hm2、P2O560.1～239.9kg/hm2、K2O105～179.1kg/hm2,产投比为3.66～8.27:1。
Through the fertilizer effect experiment designed by R323ROC on paddy soils in four dam areas in Luliang county of Yunnan province, the fertilization models of the relationship between N, P, K fertilizers and yield of rice in Luliang county were established. The results of analysis and simulation showed that , And N, P and K fertilizers significantly increased the yield of rice. The yield increase K> N> P; the highest and the best economic yield N90.15 ~ 329.85kg / hm2, P2O560.1 ~ 239.9 kg / hm2, K2O105 ~ 179.1kg / hm2, and the production / input ratio is 3.66 ~ 8.27: 1.