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在蔬菜生产中,科学安排茬口,是合理利用土壤养分,减轻病虫害的有效措施,也是提高土地产出率,增加经济效益的重要手段。 一是根据不同蔬菜对不同养分的需要,把需氮较多的叶菜类,需磷较多的茄果类和需钾较多的根茎类蔬菜相互轮作,把深根性的豆类、瓜类、茄果类,同浅根性的白菜、甘蓝、黄瓜、葱蒜类蔬菜进行轮作,就可以把不同土壤层次中的各种养分充分科用好。一般需肥较多的叶菜类后茬最好安排需磷较多的茄果类,吸肥快的黄瓜、芹菜、菠菜等,下茬最好安排对有机肥第二反应较好的番茄、茄子、辣椒等,这样前后茬都能获得高产。
In vegetable production, scientific arrangements for crop rotation are effective measures for rational use of soil nutrients and mitigation of pests and diseases, and are also an important means of increasing land productivity and increasing economic benefits. First, according to the needs of different vegetables for different nutrients, the need for more leafy vegetables, need more phosphorus and more needy vegetables and root vegetables turn rotation, the deep-rooted beans, melons , Solanaceae, cabbage with shallow root, cabbage, cucumber, onion and garlic vegetables for rotation, you can put a variety of different levels of soil nutrients fully used well. Generally need more fertilizer leaf stalks best arranged after more phosphorus needs of solanum, fast fat absorption of cucumber, celery, spinach, etc., the next best arrangements for organic fertilizer second best tomato, Eggplant, peppers, etc., so before and after crop can get high yield.