【摘要】 本试验以河北坝上地区豌豆主栽品种前进一号为材料,选择氮肥（X₁）、磷肥（X₂）、密度（X₃）三因素为决策变量,产量为目标函数,采用“311—A”最优设计,通过对结果进行统计分析得回归方程为: 在设计水平范围内,进行数学模型解析得到各因素对产量的作用顺序为磷肥最大,氮肥次之,密度最小。高产稳产优化方案的农艺措施为亩施碰铵7.1～10.5公斤,亩施过磷酸钙32.5～38.8公斤,密度4.0～4.5万株/亩。更多还原

【Abstract】 Using the popular pea variety Forward NO. 1 as material, selecting the thre e elements nitrogen fertilizer x₁, phosphate fertilizer X₂, density X₃ as dec ision variables, yield yas target function, adopting"311—A"optimization dasign,we conducted this study in Bashang, Hebei Prouince. The statistics analysis of the study showed the regressional equation as follow: y=88.43-1.25x₁+6.68x₂+1.91x₃-3.15x₁x₂- 1.42x₁x₃-3.04x₂x₃-3.37x₁²-3.76-x₂²+2.09x₃²The methmaticl modl analysis of the three elements within the design leowl slope showed that the action order as fouow: phosphate fertilizer X₂ as the first one,nitrogen fertilizer X₁ as the second one, density X₃ as the last one. The agtier ltvral practices for high and stable yields are as follow:sthe amount of NH₄. Hco₃7.1～10.5kglmn,Calcinm snperphosphate 32.5～38.8kg/mn,ctensity40000～45000。更多还原