论文部分内容阅读
采用二次回归正交旋转组合设计 ,选择播期、密度、三要素、硼砂 4个可控栽培因子 ,研究栽培因子与“杂选 1号”产量及构成因素之间的关系 ,制定出高产栽培技术的优化组合 ,通过各参试因子与其产量及构成因素建立数学模型分析 1。结果表明 :播期、密度、三要素是主导因素。各栽培因子通过构成因素发生作用而影响产量 ,通过回归分析进一步明确“杂选 1号”在我县的最适播期为 9月 5日～ 9月 11日之间 ,最适播种密度为 70 0 0株 / 6 6 7m2左右 ,三要素的最适施用量为 12 kg/ 6 6 7m2左右 ,硼砂的最适施用量为 1.2 kg/ 6 6 7m2 左右 ,采用优化组合措施 ,杂选 1号可获得 194 .3kg/ 6 6 7m2以上的产量。
Using quadratic regression orthogonal rotation combination design, four controllable cultivation factors such as sowing date, density, three factors and borax were selected to study the relationship between cultivation factors and “Hybrid No.1” yield and composition factors, and to develop high-yielding cultivation Optimization of technology portfolio, through the development of various test factors and their production factors and the establishment of mathematical model analysis 1. The results showed that sowing date, density and three factors were the dominant factors. The cultivation factors affect the yield through the compositional factors, and the regression analysis further clarifies that the optimal sowing date of “Xuan Xuan 1” in our county is between September 5 and September 11, and the optimal sowing density is 70 0 0 plants / 6 6 7m2 or so, the optimum application of the three elements of about 12 kg / 6 6m2 about borax optimum dosage of about 1.2 kg / 6 6m2 about the use of optimal combination of measures, A yield of 194.3 kg / 6 6 7 m2 was obtained.