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建国初期,各地进行三要素试验,钾肥效果不显。近年来,在一些作物和地区,施钾表现增产,颇为人们重视。为了农业生产的需要,我们于1979—81年就我省各类土壤钾肥的肥效、土壤有效钾含量与钾肥肥效的关系等问题进行了初步研究。材料及方法供试土壤主要是,黄泥巴、白墡土、黄
In the early days of the founding of the People’s Republic of China, three factors were tested in various places, and the effect of potash was insignificant. In recent years, in some crops and areas, the performance of potassium yield increase, quite people attention. In order to meet the needs of agricultural production, we conducted a preliminary study on the relationship between the fertilizer efficiency of various types of soil potash and the relationship between the available potassium content and the fertilizer efficiency in our province in 1979-81. Materials and methods for testing the soil is mainly yellow mud, white sand soil, yellow