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本文列举了部分化验数据、田间调查资料与参阅的科技资料,详细阐述了碳酸草甸黑钙上的理化性质;应用多年的田间试验资料,介绍了在这种土壤上施用氮、磷、钾等化肥对土壤理化性质的影响和对提高甜菜产质量的效果;详细介绍了在该种土壤上种植甜菜时采用的几种综合的施肥技术的试验结果,并从中筛选出2—3种比较理想的经济效益突出的施肥方法。
This paper lists some laboratory data, field survey data and references of the scientific and technical information, elaborated on the physical and chemical properties of calcium carbonate meadow black calculus; application of many years of field test data, introduced in this soil application of nitrogen, phosphorus, potassium, etc. The effects of chemical fertilizers on the physical and chemical properties of the soil and the effects on improving the yield and quality of the sugar beet; the results of several comprehensive fertilization techniques used in the cultivation of sugar beet in this soil were introduced in detail, and 2-3 kinds of ideal fertilizers Prominent economic efficiency of fertilization methods.