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玉米穗肥最佳氮肥施用量研究玉米孕穗期正值营养生长与生殖生长两旺阶段，也正是对氮肥需要量较大的时期。为此，我们对麦玉套作的玉米进行了穗肥（即大喇叭口肥）不同氮肥用量试验。现简介如下。一、材料及方法（一）试验品种及处理设计试验地土壤为沙溪府组灰棕紫泥土属...
The optimum amount of nitrogen fertilizer application of corn ear corn Positive booting period of vegetative and reproductive growth of corn stage, it is also a larger period of nitrogen fertilizer requirements. To this end, we conducted a corn-corn trial of panicle fertilizer (ie, big trumpet fertilizer) with different amounts of nitrogen fertilizer. Now the introduction is as follows. First, the material and methods (a) test varieties and processing design test soil for the Shaxi House gray brown purple soil genus ...