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苹果密植栽培,是集约化栽培主要手段之一。静宁县是甘肃省苹果生产基地之一,现有果园3066.7ha,由于品种单一,栽培手段原始,病虫为害严重,使产量低而不稳,经济效益不显著。1987年静宁县园艺技术人员,开始研究苹果乔砧密植栽培早果丰产技术,取得了良好的经济效益。1990年,我们与静宁县园艺技术人员一起在城关、城川、威戍、仁大、贾河、深沟6个乡进行了详细调查,现整理如下:
Close planting apple cultivation is one of the main means of intensive cultivation. Jingning County is one of the apple production bases in Gansu Province. The existing orchard 3066.7ha, due to a single species, the original means of cultivation, pests and diseases serious, low yield and instability, economic benefits are not significant. In 1987, Jingning County horticultural technicians started to study the fruit-planting technique of early planting and fruit harvesting of Joe angels and achieved good economic benefits. In 1990, we conducted a detailed investigation together with the horticultural technicians of Jingning County in six townships: Chengguan, Shuanchuan, Weishu, Renda, Jiahe and Shougou, and are summarized as follows: