摘要
本文采用二次旋转回归设计方法,对我省主要苹果产区成龄果园调查分析,建立了施用有机肥、氮肥、磷肥、浇水次数和修剪水平五项技术措施与苹果产量、品质关系的回归模型。通过对模型的解析,找出限制成龄果树产量、品质的主导因素,指出增施有机肥,适时灌水和调整合理树体结构,提高修剪水平是今后果园管理中必须加强的几项关键措施。说明了有机肥、氮肥的最佳用量(有机肥3500公斤/亩,氮肥30公斤/亩) 和氮、磷肥适宜比例1∶1。氮肥或磷肥的单一因素过多会引起产量、品质下降。应用计算机模拟,筛选出亩产高于2500公斤。可溶性固形物13%以上相应技术体系优化组合方案。
The orthogonal gyrating design was applied to set up yield and quality regressionequations with agrotechnical measures based on investigation and analysis of bearing applefrees grown in fruit production areas in Shandong Province. Major factors restrictingyield and quality were found by analysing the model. The most suitable amount and pro-portion of organic manure, nitrogenous and phosphoric fertilizers were established.The finest scheme of a technical system for a yield of over 2500kg/mu and solublesolids above 13% Was worked out by the modelling of an electronic computer.
出处
《山东农业大学学报（自然科学版）》
CSCD
1990年第3期9-17,共9页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
苹果
技术措施
数学模型
高产
apple
technical measures
mathematic model
