摘要
运用农业系统工程原理,采用二次回归正交旋转组合设计进行田间试验,选择栽培因素基本苗数x_1、施N量x_2、施P_2O_5量x_3、施K_2O量x_4为调控因子,以每hm^2产量y和盈利效益y_b为目标函数,建立了“永良15号”优质小麦产量、效益和农艺措施的数学模型,经微机仿真寻优,决策出7500kg/hm^2和6750元/hm^2以上的栽培措施组合方案,并研究了各项农艺措施的交互作用效应,为小麦优质高产高效栽培提供科学依据。
The field experiments were carried out by using the principle of agricultural systems engineering and the modular design between quadratic regression and positive rotation, in which the factors of the density (x1), amount of fertilizer N applied (x2), amount of P2O5 applied (x3 ) , amount of K2O applied (x4) were taken as the adjusting factors, and the yield (y) and benefit (yb) of per hm2 , as the index function. A mathematical model, which show the relationships among the yield, benefit of wheat and the different agronomic measures, is established. After optimizing the combination among different planting measures by computer, the yield of wheat exceeds 7500kg/hm2 and the benefit exceeds 6750 Yuan/hm2. In this article the interactive effects between different agronomic measures are also studied, which provides scientific basis for the high yield and high benefit of the wheat.
出处
《中国生态农业学报》
CAS
CSCD
2002年第4期111-114,共4页
Chinese Journal of Eco-Agriculture
基金
联合国开发计划署(UNDPCPR91/114)
宁夏回族自治区自然科学基金项目(F003)
