掺合肥料分离度对小麦产量与品质的影响

EFFECTS OF SEPARATING DEGREE OF ADMIXTURALFERTILIZERS ON THE YIELD AND QUILITY OF WHEAT

在３种类型紫色土上种植小麦，进行掺合肥料养分分离度试验。结果表明，掺合肥料与团粒型化成复肥在等养分等比例下，对小麦肥效和籽粒品质的影响基本相当。在中性和酸性紫色土上，掺合肥料的分离度许可范围为０％～２３％，钙质紫色土为０％～１１％，在此范围内，各处理产量和蛋白质含量均较高，与同量团粒型复肥相近。３种类型紫色土单施氨肥无增产效应。氮磷配合施用，可促进小麦对氮磷的平衡吸收而增产。

A pot model expehment of separating degree of admixtural fertilizers was done onthree kinds of typical purple soil in Sichuan province .The result showed that the effect of admixtural fertilizers on wheat was the same to that of compound fertilizer. For wheatgrowth. the separating degree of admixtural fertilizers was permitted from 0%～23%inthe neutral purple soil and the acid purple soil, and from 0%～11%in the calcareous pur-ple soil.