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近年来,随着水稻高产良种(特别是杂交水稻)的推广应用,各地氮磷肥料施用水平都普遍提高,水稻单产也有了较大幅度的增长。但进一步提高水稻单产,就愈来愈显示出施用钾肥的重要意义。大量生产实践证明,增施钾肥已成为我省水稻稳产高产的一顼重要措施。本文收集省内二十年来有关钾肥的试验资料,试就水稻施钾肥的增产效应作一综述,以供参考。
In recent years, with the popularization and application of high-yielding rice varieties (especially hybrid rice), the application levels of nitrogen and phosphorus fertilizers have generally increased, and the yield of rice has also increased by a large margin. However, to further improve rice yields, it is more and more important to show that the application of potassium fertilizer. A large number of production practices have proved that increasing potassium has become an important measure to stabilize high yield paddy rice in our province. This article collects the experimental data about potash fertilizer in the past 20 years in the province, and reviews the yield-increasing effect of potash fertilizer on paddy for reference.