1清园在落叶后清园的时候,一定要一次性、彻底地把果园中的残枝烂叶、病果、虫果等打扫干净,将其深埋到土壤中,这样既能提高土壤中有机质的含量,为果树提供氮肥,又能减少环境污染,起到保墒保水的作用。可见,清园处理是十分必要的。2流胶病病因:生理性缺钾、病毒、病菌、虫害或人为损伤等。 1 Qingyuan in the Qingyuan after deciduous, must be a one-time, thoroughly to the orchard in the rotten leaves, sick fruit, fruit and other clean, the deep buried in the soil, so that can improve the soil Organic matter content, to provide nitrogen fertilizer for fruit trees, but also reduce environmental pollution, played the role of water and soil moisture. Can be seen, Qing Park processing is very necessary. 2 meningitis causes: physiological potassium deficiency, viruses, germs, pests or human damage.