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一、试验目的各小麦是我省主要粮食作物之一,在全面贯彻八字宪法的基础上,合理增施肥料对提高小麦产量具有十分重要的意义。本试验目的是进一步验征在瘠薄的农耕地上施用磷肥的增产效果,同时了解磷肥在氮肥的配合使用下,对发挥磷肥肥效的影响,通过试验探讨以下三个问题:1.单施磷肥对小麦的增产效果;2.氮、磷配合施用时的增产效果;3.在施磷的基础上,小麦不同生育阶段施用氮肥,看其配合施用的效果。
First, the purpose of the experiment The wheat is one of the main food crops in our province, on the basis of full implementation of the eight-character constitution, the rational application of fertilizers to improve wheat yield is of great significance. The purpose of this experiment is to further test the effect of applying phosphate fertilizer on infertile farmland and to understand the effect of phosphate fertilizer on the fertilizer efficiency under the cooperation of nitrogen fertilizer. The following three questions are discussed through experiments: 1. 2. The effect of increasing yield when the combination of nitrogen and phosphorus was applied; 3. The application of nitrogen fertilizer at different growth stages of wheat on the basis of phosphorus application.