提高玉米子粒脂肪含量关键技术措施研究

试验采用二次回归正交旋转组合设计方法,以密度、氮肥、磷肥、钾肥和收获期作为决策变量,研究以上5个因素对四密25和吉油1号脂肪含量的影响,通过微机建立数学模型,并对模型进行解析,求出各因子对玉米子粒脂肪含量影响的主次关系及因子问的交互作用,借助微机模拟试验,寻出定量生产水平下的最佳栽培措施,为玉米优质栽培提供依据。

Key Technological Measures Research on Advancing Corn Grain Fat Content

The experiment was conducted with the method of the combination design of orthogonal rotating re-gression,regarding five main cultivated measures:density of cultivation,nitrogenous fertilizer,phosphate fertilizer,potash fertilizer and harvest-date as decisive varieties.The effects between the above five factors and corn grain fat content of Simi25and Jiyou No.1were studied.A mathematical model involving the five cultivated measures affect-ing the corn fat content was established and analyzed,effects of individual factor and its interaction on the corn grain fat content were determined and the optimum cultivated measures in certain conditions were found in a simulation test.It was available for top quality cultivation of corn.