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手机尾号为8947的用户问:苹果小叶病应该怎么防治?专家解答:苹果小叶病多发生在可溶性锌流失量大,氮肥用量过多,导致树体需锌量增加,盐碱地pH值较高,锌易被固定的地块。所以增加锌盐供应或释放被固定的锌元素,是防治该病的有效途径。可增施有机肥,改良土壤,增加土壤中有机质含量,用根施通+微肥灌根,诱导根系对土壤中各种微量元素的吸收利用。有小叶病的果树,发芽前树上喷新高脂膜+硫酸
Mobile tail number 8947 users Q: How should apple leaf disease prevention? Expert Answers: Apple leaflet disease occurs in a large amount of soluble zinc loss, excessive use of nitrogen, resulting in tree zinc demand increased, higher saline pH, Zinc easy to be fixed plots. Therefore, increasing the supply of zinc salts or release of zinc is fixed, is an effective way to control the disease. Organic fertilizers can be added to improve the soil, increase the content of organic matter in the soil, with root Shi Tong + micro-fertilizer irrigation, root induction of various trace elements in the soil absorption and utilization. Leaflet disease of fruit trees, sprout before the tree spray new high-fat film + sulfuric acid