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夏谷是华北地区近几年发展较快的粮食作物。夏谷生育期间光、热、水等自然资源十分丰富,例如山西省太谷县(1958—1978年统计)7至9月份降水量占全年降水量的50.3%,≧10℃积温占全年52%,日照时数占全年25.8%。前茬作物(冬小麦、冬油菜等)收获后复播谷子,两茬利用当地自然资源全年可达95%以上。近几年的生产实践证明,发展夏谷是旱地农业种植制度经济有效地利用自然资源,提高粮食总产量,促进农牧结合的一条有效途径。
Summer Valley is a rapidly growing food crop in North China in recent years. For example, in Taigu County of Shanxi Province (from 1958 to 1978), the precipitation from July to September accounted for 50.3% of the annual precipitation, and the accumulated temperature of ≧ 10 ℃ accounted for the whole year 52%, sunshine hours accounted for 25.8% of the year. The former crops (winter wheat, winter rapeseed, etc.) after the harvest of corn replanting, two stubble use of local natural resources up to 95% throughout the year. Production practice in recent years has proved that the development of Summer Valley is an effective way for the dry farming system to utilize the natural resources economically and effectively, increase the total output of grain and promote the combination of agriculture and animal husbandry.