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在目前氮肥供应较好的情况下,除了注意化肥利用率的提高外,更需要研究氮、磷、钾肥料的适当配比,以协调供需,平衡养分。为此,我们在本省三种不同类型的水稻土上对早稻进行磷钾配比的效应试验,以便为化工部门生产各种复合肥料以及农业上的合理应用化肥提供科学依据.
In the current situation of better supply of nitrogen fertilizer, in addition to paying attention to the improvement of fertilizer utilization, it is necessary to study the appropriate proportion of nitrogen, phosphorus and potassium fertilizers to coordinate supply and demand and balance nutrients. To this end, we tested the effect of phosphorus and potassium on early rice in three different types of paddy soils in the province to provide a scientific basis for the production of various compound fertilizers in the chemical industry and for the rational application of fertilizers in agriculture.