摘要
针对华北高寒区芸豆生产现状,以冀张芸1号新品种为研究对象,采用二次正交回归旋转设计方法,研究了氮、磷、钾施肥量对芸豆产量和经济效益的影响;并根据不同施肥量处理的芸豆产量结果,建立了氮磷钾施肥量与产量的二次多项式回归模型。结果表明:华北高寒区氮磷钾施肥量(依次用X、X2和X3)与产量(Y)的二次多项式回归模型为:Y=1 135.3+8.698X1+1.956X2+5.671X3-0.038X12-0.008X22-0.013X32+0.007X1X2-0.007X1X3;当施肥量为N 94.7 kg/hm2、P2O5 89.8 kg/hm2、K2O153.1 kg/hm2时,芸豆产量为2 236.9 kg/hm2,此时经济效益(8 746.2元/hm2)达到最高,与常规施肥相比,产量增加436.9 kg/hm2,纯收益增加1 676.2元/hm2。
Aimed to the production status of kidney beans in cold plateau of north China, using Jizhangyun No. 1 as the material, the effects of N, P and K fertilization rate on yield and economic benefit were studied by two orthogonal rotational regression design method, two polynomial regression model between the fertilization rate of N, P, K and yield was established according to the yield results of kidney bean of different fertilization treatments. The results showed that the two polynomial regression model between the fertilization rate of N （XL ）, P205 （X2）, K2O（X3） and yield （Y） in cold plateau of north China was Y = 1 135.3 ＋ 8. 698X1 ＋ 1. 956X2 ＋ 5. 671X3 - 0.038X1^2 -0.008X2^2 -0.013X3^2 ＋ 0.007X1X2 -0.007X1X3. When the fertilization amounts of N was 94. 7 kg/hm^2, P205 was 89. 8 kg/hm^2, K20 was 153.1 kg/hm^2, the yield of kidney bean was 2 236.9 kg/hm^2 and the economic benefit could reach the highest 8 746.2 yuart/hm^2. Compared with conventional fertilization, the yield increased 436.9 kg/hm^2, the economic benefit increased 1 676.2 yuan/hm^2.
出处
《河北农业科学》
2012年第8期28-30,共3页
Journal of Hebei Agricultural Sciences
基金
国家食用豆产业技术体系建设专项(CARS-09-Z3)
关键词
芸豆
华北高寒区
施肥量
产量
经济效益
Kidney bean
Cold plateau of north China
Fertilization rate
Yield
Economic benefit
