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大白菜是广大城乡人民冬、春的重要蔬菜。关中地区历年栽培面积占秋菜播种总面积的1/4左右。在西安、咸阳、宝鸡等大中城市,要占秋菜总面积的1/3。1981年西安、咸阳、宝鸡、兴平、渭南、耀县等六个县市,播种面积总计40698亩,较往年有所扩大,但由于遇到近数十年未有的秋涝,白菜包心率极低,仅及正常年份的一半,平均亩产不过三、四千斤,是秋菜紧张的一个重要原因。白菜对气象条件非常敏感,秋淋减产的占首位。关中地区这种灾害在三十年中竟有14年(1952、55、56、58、60、61、62、64、68、70、71、74、75、81),灾年历史概率将近50％,给生产上造成了重大损失。1981
Chinese cabbage is the majority of urban and rural people in winter and spring, an important vegetable. Guanzhong area cultivated area over the years accounted for autumn sowing the total area of about 1/4. In Xi’an, Xianyang, Baoji and other large and medium cities, accounting for the total area of autumn vegetables 1 / 3. In 1981 in Xi’an, Xianyang, Baoji, Xingping, Weinan, Yao County and other six counties, sowing area totaled 40698 acres, However, due to the autumn floods that have not occurred in recent decades, the cabbage heart rate is extremely low, only one-half of that in normal years. However, the average yield per mu is three or four kilos, which is an important reason for autumn vegetables being strained. Cabbage is very sensitive to the weather conditions, autumn shower yield reduction in the first place. The disaster in the Guanzhong area took 14 years (1952, 55, 56, 58, 60, 61, 62, 64, 68, 70, 71, 74, 75, 81) %, Resulting in a significant loss of production. 1981