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都昌县现有桃树4580亩,年产果1500多吨,为江西省重点水蜜桃生产基地。近年来,随着桃树产量的提高,桃树缺钾症发生较为普遍。据初步调查,全县86.8%的投产园(投产面积2850亩)出现程度不同的缺钾症,轻者对产量略有影响,重者亩产不到200公斤,每年经济损失达14～20万元。通过分析缺钾原因,我们拟订了切实可行的矫治措施,于1990～1991年在部分园内实施验证,平均增产43.6%,效果十
Duchang County existing peach 4580 acres, with an annual output of more than 1,500 tons, Jiangxi Province, the focus of peach production base. In recent years, with the increase of peach production, peach potassium deficiency is more common. According to the preliminary investigation, 86.8% of the parks put into operation in the county (2850 mu of production area) have different levels of potassium deficiency. Light persons have a slight impact on the output. In severe cases, the output per mu is less than 200 kg and the annual economic loss reaches 140,000-200,000 yuan. Through the analysis of the cause of potassium deficiency, we have drawn up practicable corrective measures and carried out verification in some of the parks from 1990 to 1991, with an average yield of 43.6% and an effect of 10