柑桔密植栽培的优点是结果早，早丰产，见效快。但随着树龄的增加，树冠的扩大，密植园在盛果期７～８年后，树冠郁闭（封行），光照条件恶化，导致树冠内光秃，病虫滋生，树体结果部位外移形成平面结果，有效结果体积大幅减少。致使桔园的产量和果实品质急剧下降，大小年明显 The advantage of close planting citrus is the result of early, early bumper crop, quick. However, with the increase of the tree age and the expansion of the canopy, the canopy of the canopy is closed for seven to eight years after the full-fledged fruit stage. The light conditions are deteriorated, resulting in the baldness inside the canopy, infestation of pests and diseases, Move to form a flat result, the effective result of a substantial reduction in volume. Resulting in a sharp decline in the output of orange orchard and fruit quality, the size of the year significantly