密植是提高果园早期产量,高度利用土地的重要改制措施。欧洲某些国家已经达到了现有或新建果园的70％,是具有强大生命力的一种栽培制度。但是,从长远来看,由于叶面积系数有效率低,单位面积的最高产量,则又不及稀植大树,这就有必要创造一种早期丰产和长期高产的体制——“变化性密植”,逐渐间伐过密的临时性植株,把两种栽培制度的优点 Close planting is to improve the early yield orchard, a high degree of utilization of land is an important restructuring measures. Some countries in Europe have reached 70% of the existing or newly established orchards and are a cultivation system with strong vitality. However, in the long run, due to the low efficiency of leaf area coefficient, the highest yield per unit area is less than that of sparsely populated large trees. Therefore, it is necessary to create a system of early high yield and long-term high yield - “close planting” , Gradually thinning too close temporary plants, the advantages of the two cultivation systems