大白菜收获的早与晚,与产量和质量都有直接关系。收早了不仅影响产量,而且入窖后容易脱帮烂帮;收晚了若遇到气温骤然降低,易遭受冻害,造成损失。因此,应根据气象条件确定大白菜的适宜收获期。大白菜是喜冷凉气候的蔬菜,在气温降至“冰点”以下时,还正是生长壮心时期,此时既有利于白菜的增重,又能生长柔嫩而多糖的心叶,如能适当延长此段生长期,能大大提高大白菜的产量和质 Chinese cabbage harvest early and late, and yield and quality have a direct relationship. Harvest early not only affect the yield, but also easy to help off the rotten gang into the cellar; received late suddenly encountered a decrease in temperature, vulnerable to frost damage, resulting in losses. Therefore, we should determine the appropriate harvest period of Chinese cabbage according to the weather conditions. Chinese cabbage is a vegetable in a cold climate. When the temperature drops below the freezing point, it is also the time to grow a strong mind. At this time, it is not only beneficial to the weight gain of cabbage but also to the growth of tender and polysaccharide heart leaves, Extend this period of growth, can greatly improve the yield and quality of Chinese cabbage