惠民地处鲁北平原,是苹果新区,近年来苹果面积迅速增加,但由于果农技术素质低和气候原因,不少果园病害严重,烂果很多,有的甚至绝产。 一、烂果原因 1.温度高湿度大。1994年夏季温度高,雨水多,湿度大,促使苹果轮纹病、炭疽病大发生。 2.枝叶密度大。由于推广矮化密植栽培,再加上幼树轻剪长放密留枝,造成树冠交接,群体、个体光照恶化,冠内难以喷进药水,且高温多湿,有利于各种病害的严重发生。 Huimin is located in the Lubei Plain, is the new apple district, apple area increased rapidly in recent years, but because of the low quality of fruit growers and climate reasons, many orchard serious disease, many rotten fruit, and some even dead. First, rotten fruit causes 1. High temperature and humidity. In the summer of 1994, the temperature was high, rain and humidity were high, prompting apple rot disease and anthrax. 2 foliage density. Due to the promotion of dwarf and dense planting cultivation, coupled with the young tree light cut long sticks, resulting in the tree crown handover, groups, individual deterioration of light, the crown is difficult to spray syrup, and hot and humid, is conducive to the serious occurrence of various diseases.