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在供试土壤(全盐量≤0.4%,盐分的主要组成为NaCl)条件下,稻株Na含量(%)与K含量(%)之间呈反相关;稻株Na含量(%)及其吸收速度随土壤盐渍度的增高而增加,稻株K含量(%)及其吸收速度则随盐渍度的增高而减少。稻株吸收Cl和N之间亦有相关现象。盐渍条件下“钠诱缺钾”的情况可导致氮钾营养失调。在不同盐渍度土壤中,施氮肥对稻谷产量的效应极显著,钾肥的效应不显著,磷肥的效应介于氮钾肥之间。
Under the conditions of soil (total salt ≤0.4%, NaCl as the main component), the Na content (%) and K content (%) of rice plants were inversely correlated. The content of Na The absorption rate increased with the increase of soil salinity. The K content (%) and its absorption rate of rice plants decreased with the increase of salinity. There is also a correlation between the uptake of Cl and N by rice plants. Salinity conditions, “sodium induced potassium deficiency” situation can lead to nitrogen and potassium nutrition disorders. In different salinities soils, the effect of nitrogenous fertilizer on paddy yield was extremely significant, the effect of potassium fertilizer was not significant, and the effect of phosphate fertilizer was between that of nitrogenous and potassium fertilizers.