Rational rotation of vegetables can increase production

With many varieties of vegetables, short growth cycle, high multiple cropping index, and scientific arrangement of vegetable garden gargles, it can restore and improve soil fertility, reduce pests and diseases, increase yield, and improve quality. It is an extremely important and extremely effective agricultural production increase measure. To implement a reasonable rotation of vegetables, the following principles should be followed:

Different types of fertilizer are required. For leafy vegetables such as greens and spinach, more nitrogen is needed, fruits and vegetables such as melons, tomatoes and peppers need more phosphorus, and potato and yam need more potassium, and they can be used in continuous cultivation to make full use of the soil. Nutrients.

The depth of the root is different. If deep-rooted eggplants, beans, and shallow-rooted cabbage, onion and garlic crop rotation, the different levels of fertilizer in the soil can be used.

Do not infect pests and diseases. The rotation of different kinds of crops can change the living conditions of pests and insects and reduce pests and diseases. For example, grain crop rotation and crop rotation can control soil-borne diseases; after-planting Chinese cabbage with onions and garlic can greatly reduce the incidence of soft rot.

Improve soil structure. Rhizobium in legumes is nitrogen-fixing, which can increase fertility. Next, Chinese cabbage and eggplant, which require more nitrogen, should be planted, and onions with less nitrogen need to be planted again.

Pay attention to the requirements of different vegetables on soil pH. After vegetables and potatoes are grown, the acidity of the soil can be increased. However, after pumpkins and sweet corn are planted, the acidity can be reduced. Therefore, onions that are sensitive to soil acidity can be used as pumpkins to increase production, and as a post-cooking crop, the yield can be reduced.

According to the above principles, the rotation period of various vegetables varies. For example, cabbage, celery, cabbage, cauliflower, onion, garlic, etc., can be used as a few crops in the absence of severe disease, but base fertilizer must be added. There are potatoes that need to be cultivated every 1-2 years, such as potatoes, yams, ginger, cucumbers, and peppers that need to be cultivated every 2-3 years. Tomatoes, taro, eggplant, cantaloupe, peas, etc. must be cultivated every 3-4 years. .

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