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针对掺合肥料在贮运过程中产生养分分离而影响肥效的问题进行田间模拟试验,结果表明:掺合肥料中不同元素的分离度对作物产量的影响与土壤中相应养分含量密切相关。相同用量和比例的团粒复肥与无分离度的掺合肥肥效相当。初步确定了水稻、小麦的掺合肥料在不同土壤上允许的分离度范围。
A field experiment was carried out on the problem of fertilizers produced during storage and transportation and affecting fertilizer efficiency. The results showed that the effect of different elements’ separation degree on crop yield was closely related to the corresponding nutrient content in soil. The same amount and proportion of compound fertilizer and non-degree of separation of fertilizer effect is equivalent. The range of the degree of separation allowed by the mixed fertilizers of rice and wheat on different soils was preliminarily determined.