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褐变病(当地群众又称为“红心病”)是黄县长把梨的主要果实生理病害。1970年以来,我们对褐变病的发病规律及防治措施进行了试验研究工作。本文主要总结了1984～1985两年来的研究结果,明确了在当地条件下,诱发和影响黄县长把梨褐变病的消长因素是多方面的。其中,最主要的是采收期的早晚,氮和钙、钾、磷的使用和树势强弱;其次是贮藏期间的温度状况。提出了在增施有机肥料的基础上,适当早施氮肥,磷、钾肥配
Browning disease (the local people, also known as “heart disease”) is the main fruit of Huang Xianchang pears physiological diseases. Since 1970, we carried out experimental research on the pathogenesis and prevention and treatment of browning disease. This paper summarizes the results of the two years from 1984 to 1985, and clarifies that under the local conditions, the factors that induce and affect Huang County’s pest browning disease are various. Among them, the most important is the harvesting period of the morning and evening, the use of nitrogen and calcium, potassium, phosphorus and tree strength; followed by the temperature during storage conditions. Proposed in the additional organic fertilizer on the basis of appropriate early nitrogen, phosphorus and potassium fertilizer