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黑龙江省通河县镇郊公社胜利大队1974年初建塑料大棚,开始栽培黄瓜时,由于霜霉病严重,黄瓜采收期仅1个多月,平均亩产只有4、5千斤。以后他们积极开展科学试验,对大棚黄瓜的栽培管理进行了一系列的改革。几年来,他们总结出一套综合防病措施,有效地控制了霜霉病的危害,使黄瓜生长期延长到9月下旬,直至结冰上冻时为止,采瓜期达4个多月。今年15亩大棚黄瓜平均亩产达到29,500多斤,最高棚达到35,00斤,连续3年获得高产。他们的经
Heilongjiang Province Tonghe County suburbs Commune victory battalion to build a plastic shed in early 1974, began to cultivate cucumber, due to downy mildew serious cucumber harvest period of just over one month, the average yield of only 4,5 kg. After they actively carry out scientific experiments, greenhouse cucumber cultivation and management conducted a series of reforms. In recent years, they summed up a comprehensive set of disease prevention measures to effectively control the hazards of downy mildew, so that the cucumber growth period extended to late September, until the freeze on the frozen date, the harvest period of more than 4 months. This year 15 mu greenhouse cucumbers average yield reached 29,500 kilos, the highest shed reached 35,00 pounds, 3 consecutive years to obtain high yield. Their scriptures