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结球白菜也叫大白菜,本是秋季大面积栽培的一种蔬菜。有些地方为了增加春夏之间淡季菜春种是很有意义的,但有时春种不好,导致未结球即抽苔了,也有的虽不抽苔但一直不结球,严重影响产量和质量,甚至不能食用,只能作为猪、鸡饲料。 为了保证秋白菜春种也能结球,应掌握以下技术措施: 1 选用适于春种的品种。主要是选择对低温感应比较迟钝而花芽分化又比较慢的早熟品种。如南韩的金峰、春秋54、四季王、热抗48春夏王,强势白菜等等。 2 严格掌握播种期。一般在当地终霜前后播种可防止抽苔,但在生长期(10～20℃较低温度期)不足,易使结球期赶上高温而不利结球。所以要采取温室或阳畦育苗,然后移栽。用营养土块育苗,每
Cabbage also called Chinese cabbage, this is a large area of autumn cultivation of vegetables. In some places, it is very meaningful to increase the spring and summer off-season dishes, but sometimes the spring is poor, resulting in unpolished moss, while others are not bored but have no effect on the yield. Quality, can not even eat, only as a pig, chicken feed. In order to ensure the Spring Pak Choi can also catch the ball, should have the following technical measures: 1 Selection of varieties suitable for spring species. Mainly to choose the relatively slow response to low temperature bud and flower bud differentiation is relatively slow varieties. Such as South Korea’s Jinfeng, Spring and Autumn 54, Four Seasons King, heat resistance spring and summer 48, strong cabbage and so on. 2 Strict control of the sowing period. Generally in the local end of the frost before sowing to prevent bolting, but in the growing stage (10 ~ 20 ℃ lower temperature period) less than easy to catch the catch-up period of high temperature and unfavorable ball. Therefore, we must take greenhouse or Yang Zhu nursery, and then transplanted. Nutrient soil nursery seedlings, each