CAJ | 학술논문

[目的]研究在水稻高产区氮、磷、钾肥对晚稻产量和经济效益的影响.[方法]采用"3414"肥效试验方案研究氮、磷、钾肥不同用量对水稻的影响.[结果]高肥力地区施肥效果与其他地区明显不同,合理施用氮磷钾肥可显著增产,经济效益显著,而不合理施肥则经济效益极低甚至亏损.通过拟合一元二次肥效模型,确定晚稻最高施肥量为N 249.9 kg/hm~2、P_2O_5 62.2 kg/hm2、K_2O 128.7 kg/hm~2,最佳经济施肥量为N 189.2 kg/hm~2、P_2O_5 55.2 kg/hm~2和K_2O 101.1 kg/hm~2.[结论]合理施用氮、磷、钾肥是水稻增产增收的有效措施.
[목적]연구재수도고산구담、린、갑비대만도산량화경제효익적영향.[방법]채용"3414"비효시험방안연구담、린、갑비불동용량대수도적영향.[결과]고비력지구시비효과여기타지구명현불동,합리시용담린갑비가현저증산,경제효익현저,이불합리시비칙경제효익겁저심지우손.통과의합일원이차비효모형,학정만도최고시비량위N 249.9 kg/hm~2、P_2O_5 62.2 kg/hm2、K_2O 128.7 kg/hm~2,최가경제시비량위N 189.2 kg/hm~2、P_2O_5 55.2 kg/hm~2화K_2O 101.1 kg/hm~2.[결론]합리시용담、린、갑비시수도증산증수적유효조시.
[Objective] The research aimed to study the effect of nitrogen,phosphorus and potassium fertilization on the yield and economic benefits of late-season rice.[Method] The influences of the application amount of N,P and K fertilizer on rice were studied by the "3414" fertilizer experiment.[Result] The results showed that the fertility efficiency was the remarkably different between the soil of high fertility and other areas.When adequate N,P and K were supplied,the yield and economic benefits could be significantly improved,otherwise would decrease the economic benefits or to worse.According to fertilizer effect function,the highest yield would be reached when N,P_2O_5 and K_2O application rate were 249.9,62.2 and 128.7 kg/hm~2 resp.,and the highest profit would be reached when N,P_2O_5 and K_2O application rate were 189.2 kg/hm2,55.2 kg/hm~2 and 101.1 kg/hm2,respectively.[Conclusion] The reasonable application of N,P and K fertilizer was the effective measure for increasing the rice yield.