The typical erect panicle rice variety Shennong 265, and semi-erect panicle rice variety Liaojing 294 were used to compare dry matter accumulation, absorption and use efficiency of potassium.
选用典型直立穗型水稻品种沈农265和半直立穗型品种辽粳294为试材，研究两品种干物质积累、钾素吸收和利用效率的差异。
Potassium(K) balance in purple soil rice field ecosystem under rice-wheat rotation were studied on the National Purple Soil Fertility and Fertilizer Efficiency Monitored Base.
在国家紫色土肥力与肥料效益监测基地上，研究了稻麦轮作制度下紫色土稻田生态系统中钾素的平衡状况。
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