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高产麦田化肥施用不当,是近年来影响小麦产量持续高产的突出问题。为了探讨化肥适宜用量的参考指标,1979—1982年,我们连续三个年度进行了化肥氮、磷、钾不同量单追和不同比例配合追施对小麦产量形成效果的试验研究。试验设在我院实习农场、掖县后吕大队、光明大队、海阳县草家泊大队等四个单位。小区面积最小1厘,最大7厘。追肥两次,分别在冬前和起身等量施入并浇水,其余管理均与大田常规相同。供试品种为烟农15号。
Improper application of fertilizers in high-yield wheat fields is a prominent issue that has been affecting the high yield of wheat in recent years. In order to explore the reference index of proper amount of fertilizers, from 1979 to 1982, we conducted three consecutive years of experimental study on yield formation of different yield of nitrogen, phosphorus and potassium with single chase and topdressing with different proportion. Experimental set up in our hospital internship farm, Ye Lu Hou Brigade, Brigade, Haiyang County, home grass moratorium and other four units. The smallest area of 1%, the largest 7%. Topdressing twice, respectively, before winter and get up and apply the same amount of watering, and the rest of the management are the same with Daejeon. Test varieties for farmers on the 15th.