摘要
研究了氮、磷、钾化肥配合施用对水稻产量的影响，结果表明：在磷、钾养分相等的条件下，当氮肥的用量超过21．0kg／667cm^2时，水稻的增产效果不显著；水稻氮肥的用量范围为9．0～21．0kg／667m^2。氮、磷、钾化肥的合理施用对水稻产量及其构成因子有非常显著的影响。
The effects of combined application of N, P and K on rice yield were studied. The results showed that under the conditions of equual P and K amount, when the dose of N in rice was higher than 21.0 kg/667 cm^2, the yield - increaseing effect N,P and K fertilizer reasonable application of the N, P and K fertilizer resonable appleication of N, P and K fertilizer effect on rice yield and itscomponent factors.
关键词
氮
磷
钾化肥
水稻
产量
N, P and K fertilizer
rice
yield
