The following principles should be followed.
1 Select the type of planting, planting, harvesting and similar intercropping, in order to unify the farming and field management, timely unloading.
2 The nutrition or root system distribution of the two types of vegetable varieties is different, so as to make full use of the ground force. Such as intercropping beans, corn, dwarf kidney beans deep, less nitrogen, more shallow corn root nitrogen.
3 The two types of vegetables are different in height and height to facilitate air and light transmission and make full use of light energy. Examples of cucumber intercropping cabbage, cauliflower and so on.
4 Long-term growth and short-term growth. For example, melons and solanes grow for a long period of time. In the middle of them, short cabbages, radishes, leeks, etc. with a short growing period can be harvested in a short period of time without affecting the growth of melons and solanaceous fruit and fully utilizing the land.
5 hi light and shade-tolerant fit. For example, cabbage is resistant to cold and moisture, and grows quickly in shaded environments with good quality. Therefore, cabbage can be interplanted with melons, solanaceous fruits, leeks, and celery.
6 One-time harvesting is matched with the vegetables harvested one after another. For example, tomatoes are covered with spring radish and eggplant is covered with spinach.
When interplanting vegetables, pay attention to:
1 Similar and similar vegetables are susceptible to the same pests and diseases, and should not be interplanted.
2 Planting density has a limit to the growth of the main crop.
3 The main course and the intercourse, the intergrowth stage of interplanting vegetables and the field management both take into consideration. When the two are contradictory, the main course is the main course. In order to cultivate vegetables using intercropping methods, it is necessary to pay attention to adding basic fertilizers, strengthen fertilizer and water management, and ensure demand.
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