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生产实践表明,影响钾肥肥效的条件是多方面的.前些时候,我们曾在土壤供钾状况、氮肥用量、基肥种类以及钾肥在粮食一年三熟复种制中的分配等方面与钾肥肥效的关系,做过一些试验,明确了一些问题.现将结果总结于后,供有关方面参考. 试验方法 1.试验经过:本文中各项试验,是自1970年以来,分别根据试验要求,选择有代表性的土壤,陆续与有关单位协作进行的.试验采用室内外相结合的方式,均系统一设计.供试化肥的肥料成分含量,均事先经过分析,然后统一分发给各试验单位.田间试
Production practice shows that there are many conditions that affect the efficiency of potash fertilizer, and some time ago, we worked with potash fertilizer in the aspects of soil potassium supply, the amount of nitrogen fertilizer, the type of basal fertilizer and the distribution of potash fertilizer in the three-year seed multiplication of grain Relationship, did some experiments, a number of clear problems. Now the results are summarized later, for reference .Test methods 1.Through the test: The tests in this article, since 1970, respectively, according to the test requirements, the choice of Representative soil, one after another in collaboration with the relevant units .Tests using a combination of indoor and outdoor, are a systematic design .Fertilizer fertilizer ingredients were analyzed in advance, and then distributed to the unified test units .Field test