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渭北高塬灌区,地势平坦,土壤肥沃,年降水550～650毫米,适于粮棉生产。历史上主产小麦,产量较低,但比较稳定。1958年水利化后,粮棉产量有很大提高,支援了国家建设,巩固了集体经济,提高了人民生活水平。但近年来,在水、肥、劳、畜力普遍不足,特别是伏天严重缺水的情况下,过多地提高复种指数,扩大晚秋,严重地影响了全年均衡增产。灌区的水源情况:夏田作物由于降水分配比较均匀,变率不大,加以冬春渠水基本可以
Weibei plateau irrigated land, flat, fertile soil, annual precipitation 550 ~ 650 mm, suitable for grain and cotton production. The main wheat in history, lower yield, but more stable. After water conservancy in 1958, the output of grain and cotton increased greatly, supporting the construction of the country, consolidating the collective economy and raising the living standard of the people. However, in recent years, with the general lack of water, fertilizer, labor and animal husbandry, especially in the case of severe water shortages, the excessive increase of the multiple cropping index and the expansion of late autumn have seriously affected the balanced production increase throughout the year. Irrigation area of the water situation: Summer field crops due to the distribution of precipitation more uniform, small rate of change, to be able to winter and spring canals basically