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邓州市地处河南省南阳盆地西南侧,总耕地面积239万亩,其中旱地面积占70%以上,属西北亚热带向暖温带过渡地带,全年日照时数2000小时,自然降水745毫米,无霜期229天,光、热、水基本可以满足小麦正常生育的需要,但时空分布不均,尤其是冬季缺雨少雪,有“十年九旱”之说,加之寒流频繁,突变性大,极易形成冻害。1988年冬季连续50多天严重干旱,麦田5厘
Dengzhou City is located in the southwestern side of Nanyang Basin in Henan Province. The total area of cultivated land is 239 mu, of which dry land covers more than 70% of the total. It belongs to the transition zone of northwest subtropical zone to warm temperate zone with annual sunshine duration of 2000 hours, natural precipitation of 745 mm, frost- 229 days, light, heat, water can basically meet the needs of wheat normal fertility, but the spatial and temporal distribution of uneven, especially in winter, lack of snow and less snow, “ten years nine drought,” said, combined with frequent cold, mutation, pole Easy to form frost damage. The winter of 1988 witnessed severe drought for more than 50 days and a crop of 5%