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郑州市地处黄河南岸,属大陆性气候,全年平均气温14.2℃,无霜期217天,冬春风大,晴天多,温度不太低,低温持续时间短。这种气候条件更能充分发挥大棚生产的优越性。我队从1972年开始利用塑料大棚生产蔬菜,三年来,面积不断扩大,产量逐渐提高,对解决蔬菜淡季供应,增加花色品种起了一定作用。秋延后番茄 (一)选用抗热抗病品种番茄生长的前期正值高温多雨季节,要求品种抗热抗病性强。我们试用当地“自封顶”与“农大23”秋播,表现比较理想。一
Located in the south bank of the Yellow River, Zhengzhou City is a continental climate with annual average temperature of 14.2 ℃, frost-free period of 217 days, large winter and spring winds, clear days, not too low temperatures and short duration of low temperatures. This climatic conditions can give full play to the advantages of greenhouse production. Our team started to produce vegetables from plastic greenhouses in 1972. Over the past three years, the area has been constantly expanding and the output has been gradually raised. It has played a certain role in solving the supply of vegetables in the off-season and increasing the variety of varieties. Autumn delayed tomato (a) the selection of heat-resistant varieties of tomato growth in the early positive hot and rainy season, requiring varieties of heat resistance and disease resistance. We try the local “self-styled” and “Nongda 23” autumn broadcast, the performance of the ideal. one