苹果袋培普遍采取果实套袋措施,但套袋后的苹果果实缺钙症的发生机率明显升高。缺钙症的表现因苹果品种不同而有异,主要有苦痘病、痘斑病、水心病、果肉绵变及采前落果等。导致苹果缺钙症的原因有多种,应依果园和品种的具体情况,采取相应防控措施。叶面喷施钙肥给树体补钙,是预防缺钙症发生最为普遍采取的措施。 Apple bags generally adopt fruit bagging measures, but after bagged apple fruit calcium deficiency incidence significantly increased. The performance of calcium deficiency due to different varieties of apple vary, mainly bitter pox disease, pox spot disease, water heart disease, fleshy cotton changes and before the harvest and so on. Apple calcium deficiency causes a variety of reasons, depending on orchards and varieties of the specific circumstances, to take appropriate prevention and control measures. Foliar application of calcium fertilizer to the tree calcium, calcium deficiency prevention is the most common measures taken.