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张掖市地处河西走廊中部,年平均气温7℃,日照2932～3083小时,降雨量113～312mm,无霜期157天。种植作物一季有余,两季不足。自1981年以来,改过去单一种植玉米、花椰菜为玉米、花椰菜套种,产量和经济效益显著增加,在河西平川灌区创出了高产、高效的粮菜套种模式。据调查,1992年全市套种面积已达145hm~2以上,平均每亩产花椰菜1939.75kg,产
Zhangye City is located in the central Hexi Corridor, the annual average temperature of 7 ℃, sunshine 2932 ~ 3083 hours, rainfall 113 ~ 312mm, frost-free period of 157 days. Crop more than a quarter season, less than two quarters. Since 1981, instead of monoculture corn, cauliflower corn, and cauliflower intercropping, the yield and economic benefits have significantly increased. A high-yielding and high-efficiency grain intercropping pattern has been set up in the Hechuan Pingchuan Irrigation District. According to the survey, in 1992 the city’s inter-planted area has reached more than 145hm ~ 2, an average of 1939.75kg per acre of cauliflower production