绿豆高产栽培技术研究与数学模型建立

摘要

采用五元二次回归正交旋转组合设计，研究绿豆(V igna radiata)播期(x1)、种植密度(x2)、施氮(N)量(x3)、施磷(P2O5)量(x4)和施钾(K2O)量(x5)对产量(y)的影响，建立高产数学模型，研制高产栽培技术措施。结果表明，在4月14~16日播种、种植密度14.7万~15.3万株/hm2、施N 41.20~49.92 kg/hm2、施P2O543.99~47.48 kg/hm2、施K2O 36.97~41.03 kg/hm2时，可获得高于1000.10 kg/hm2的绿豆产量。%Quadratic regression orthogonal rotation combination design with five factors was used to study the relationship be-tween the yield (y) and sowing time (x1), density (x2), pure N (x3), P2O5 (x4) and K2O (x5) for establishing of mathematical model and developing cultivation technical measures of high yield. The results showed that the comprehensive measures with sowing on April 14~16, 147~153 thousand plants/hm2, 41.20~49.92 kg/hm2 of pure N, 43.99~47.48 kg/hm2 of P2O5 and 36.97~41.03 kg/hm2 of K2O were practical for the yield of more than 1 000.10 kg/hm2.