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大白菜是高产作物。为了进一步提高大白菜产量,需要从提高单株产量和群体产量两个方面来努力。一、提高单株产量提高单株产量,主要增加结球的紧实度,使构成叶球的几张重要球叶能够充分生长起来。所谓主要球叶是指包在球上的从外往里数的15张叶片,这几张球叶的大小、轻重是形成产量的关键,其重量约占球重的90%。影响外层球叶大小的原因有二;一是这几张叶片生长旺盛时期的营养条件;二是这几张重要球叶形成之前,它的外叶生长的基础。结球白菜先长壮
Chinese cabbage is a high yield crop. In order to further improve the yield of Chinese cabbage, we need to work hard to improve both the yield per plant and the population yield. First, increase the yield per plant Improve the yield per plant, the main increase in the degree of tightness of the ball, so that a few important leaves constitute the leaf ball can fully grow up. The so-called main ball leaves refers to the number of leaves on the ball from the inside out of 15, these ball leaves the size, severity is the key to the formation of the output, the weight of about 90% of the weight of the ball. There are two reasons that affect the size of the outer globule leaf. The first is the nutrient conditions during the vigorous growth of these leaves. The second is the basis for the growth of the outer lobe before the formation of several important globules. The first cabbage cabbage strong