不同施肥量对甜荞主要产量指标的影响

Different Fertilization Influence the Yield Indexes of Sweet Buckwheat on Dingxi

通过对定西地区甜荞不同施肥量下株高、分枝数、产量、降水利用效率等指标的综合比较认为,最佳的施肥量为:施纯N22.5kg/hm2、P2O530.46kg/hm2、K2O65.48kg/hm2,其对应株高73.4cm,分枝数4.4个,产量896.18kg/hm2,降水利用效率5.38kg/(hm2·mm)。

Comparasion experiments on the different fertilization. Use the whole comparasion among the indexes such as the plant height .branch ,yield and water use efficiency. We can get the conclution that the optimum getting fertilizer in Dingxi is the Urea 22.5kg/hm^2. P2O5kg/hm^2 and K2O4 65.48kg/hm^2.And the plant height is 73.4cm.The branch is 4.4.The yield is 896.18kg/hm^2.The water use efficiency is 5.38kg/ hm^2. mm.