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我国烟区习惯施用饼肥,但油饼是家畜的精饲料和重要的工业原料,用以肥田很不经济,极需寻找代用方法以应生产需要。自1957年以来,我所对化肥和饼肥的肥效进行了比较,并对饼肥的营养机制及代用方法作了初步探索,本文仅就已有成果综述如下。一、化肥与豆饼的肥效比较据我所1957、1958、1960三年研究结果,按豆饼中三要素含量分别以氮磷钾化肥代替,并以腐熟马粪代替豆饼中的有机质,在同量农家肥的
China’s tobacco habit of using the cake, but the oil cake is a livestock feed and an important industrial raw materials for fertilizer is very uneconomical, it is necessary to find alternative methods to meet the production needs. Since 1957, I compared the fertilizer and cake fertilizer efficiency, and made a preliminary exploration of the nutritional mechanism and alternative methods of cake fertilizer. This article reviews the existing achievements as follows. First, the fertilizer and soybean cake compared efficiency According to my 1957, 1958, 1960 three years of research results, according to the three elements in soybean meal were replaced by nitrogen, phosphorus and potassium fertilizers, and replace the maturity of horse manure soybean cake organic matter in the same amount of farmhouse fat