安徽农业科学2016，Vol.44Issue(31)：137-139,3.
氮・磷・钾肥对伊犁地区甜菜产量的影响
The Effect of Fertilizer Input to Yield of Sugar Beet in Yili Region
摘要
Abstract
Objective] The study aimed to seek suitable beet appropriate proportion and use level of fertilizer in Yili Region .[ Method] From the angle of the Yili Region beet fertilizer utilization, set the NPK 3 factors 4 levels test, according to the production to simulate the effect of NPK fertilizer to seek suitable beet appropriate proportion of fertilizer in Yili Region.[Result] The relationship of beet yields with NPK fertiliz-er inputs was simulated out into a ternary quadratic formula.The formula is y =3 319.323 7 +297.974 9N -8.429 7P -8.860 2K -6.940 5N2 -2.628 9P2 -1.159 8K2 -3.060 1NP-2.987 5NK+10.100 5PK;through the formula we could calculated out that when the re-al fertilizer inputs were N=250.23 kg/hm2, P2O5 =138.15 kg/hm2, K2O=165.73 kg/hm2, these three fertilizer elements ration was 1∶0.55∶0.66, the beet could output the best suitable yield, 87.38 t/hm2 .The rate of contribution of N fertilizer was 35.65%, the rate of con-tribution of P fertilizer was 12.04%, the rate of contribution of P fertilizer was 10.5%.The limit factor in beet yield growth was N>P>K. [Conclusion] Suitable beet appropriate proportion of fertilizer NPK elements ration was 1∶0.55∶0.66 in Yili region.关键词
甜菜/产量/最佳施肥量/肥料利用率Key words
Sugar beet/Yield/The best fertilizer amount/Utilization rate of fertilizer分类
农业科技引用本文复制引用
曹禹,孙娜,孙桂荣,蒋桂英,李鲁华..氮・磷・钾肥对伊犁地区甜菜产量的影响[J].安徽农业科学,2016,44(31):137-139,3.基金项目
国家甜菜现代农业产业技术体系项目（ CARS－210409）。 （）
