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通过 4因素 5水平二次回归正交旋转组合设计 ,运用BPS数据处理分析软件 ,建立了杂交玉米临奥一号在黔东中低海拔玉米主产区主要农艺措施与产量的数学模型。通过模拟寻优分析得出了配套的栽培技术方案 :适期播种 ,营养土保温育苗 ,3 5叶龄单株定向移栽 ,密度在 3775～ 396 2株 /6 6 7m2 ;在不施农家肥的情况下 ,化肥用量为纯N 15 76～16 8kg/6 6 7m2 ;施P2 O54 5～ 5 5kg/6 6 7m2 和施K2 O 11 5～13 4kg/6 6 7m2 ,同时加强田间管理 ,综合防治病虫害 ,适时收获 ,可获得 5 0 0kg/6 6 7m2 以上的产量
Through quadratic regression orthogonal rotation design with 4 factors and 5 levels and BPS data processing and analysis software, the mathematical model of main agronomic measures and yield of hybrid maize Lin’ao-1 in the main maize producing area of middle and low elevation of eastern Guizhou was established. Through the simulation optimization analysis, the corresponding cultivation techniques were obtained: sowing in proper time, seedling raising in vegetative soils, directional transplanting in 3-5 leaf stage with the density of 3775 ~ 3962 plants / 6 6 7m2; , The amount of fertilizer was pure N 15 76 ~ 16 8kg / 6 6 7m 2; the application of P 2 O 54 5 ~ 5 5kg / 6 6 7m 2 and the application of K 2 O 11 5 ~ 13 4kg / 6 6 7m 2, while strengthening field management, Prevention and control of pests and diseases, timely harvest, access to more than 500kg / 6 67m2 production