作　　者： ; ; ;

机构地区： 西北农业大学植物保护系

出　　处： 《中国柑桔》 1993年第1期6-10,共5页

摘　　要： 采用四因素五水平二次正交旋转回归组合设计,研究了影响柑桔高产优质的有机肥、氮肥、磷肥、钾肥之间的相互关系及最佳施用量,建立了汉中桔区柑桔高产优质配方施肥的数学模型。通过对各施肥水平的单因子效应和交互效应的综合分析,利用计算机模拟与优化仿真,提出了最佳配方施肥组合方案为:有机肥:氮肥:磷肥:钾肥=70:0.60～0.64:0.50～0.75:0.59～0.64。采用此配方施肥优化组合方案,增产幅度大,果实品质优良。增产效益明显。 The effect of organic matter (X_1), nitrogen (X_2), phosphorus (X_3) and potash (X_4) fertilizer on the yield and quality of sweet orange were numerically and synthetically studied using the regressive quadratic orthogonal and gyrate combination design with 4 factors and 5 levels. The mathematical model of a formula applying fertilizer for high yield and good quality of citrus in Hanzhong area were established. The single factor and interactional effects were analysed,and the simulation and optimization of the formula were carried out in computer. On the basis of these results ,an optimal design, which were X_1 = X_2 = X_3 : X_4=70 : 0. 60～0. 6380: 0. 50～0. 750 : 0. 5924～0. 6418,were built up. The results showed that the optimal combination of farming practices could greatly improved yield, quality and benefit.

关 键 词： 柑桔类 果树 施肥 数学模型

领　　域： [农业科学] [农业科学]