【摘要】 在海南中上肥力的土壤上,分别进行了超级稻新组合P88S/0293的氮磷钾肥不同施用量的肥料运筹试验。结果表明,氮磷钾肥的施肥量与超级稻新组合P88S/0293的产量、产量构成因子、生育期、植株性状、抗性等关系非常密切。该组合获得高产的合理施肥量为N(纯氮)300kg/hm2,P2O5(五氧化二磷)150kg/hm2,K2O(氧化钾)300kg/hm2,三者的比例m(N)∶m(P2O5)∶m(K2O)=1.0∶0.5∶1.0。更多还原

【Abstract】 The experiment on effect of amounts of nitrogen, potassium and phosphorus applied on superhybrid rice P88S/0293 was conducted on the soil with superior and medium fertility in Hainan. Theresults showed that yield, yield components, growth season, agronomic character of plant, and diseaseresistance were closely related to the amounts of nitrogen, potassium and phosphorus applied. The newcombination P88S/0293 to get high yield was that N is of 300 kg/hm2, P2O5 150 kg/hm2 and K2O 300kg/hm2. The constant proportion of N∶P2O5∶K2O was equate to 1.0∶0.5∶1.0.更多还原