1. Principles of vegetable rotation 1. Vegetables of the same family or the same type cannot be used for continuous crops. General diseases and insect pests of these vegetables can infect each other, and the nutrients required for crop growth and development are similar, which is unfavorable for soil and crops. For example, our common nightshade, melons, and onions and garlic cannot be inter-connected.
2. Vegetables with different root distributions or different depths can be used for continuous cropping. This function is to balance the nutrients of different soil layers. Common deep-rooted vegetables have eggplants and shallow-rooted vegetables have leafy vegetables. They can be connected with each other. , Can maintain a balanced soil nutrients.
3. When the secretions of different crops have mutual promotion effects, continuous cropping can effectively prevent the accumulation of soil-borne pathogens. For example, onion, ginger and garlic crops can secrete a bactericidal substance. Benefits of vegetable rotation Two, the benefits of vegetable rotation are different. The nutrients absorbed by vegetables are different, and the absorption capacity is different. Rotation can effectively and fully use soil nutrients, which can reduce the appetite of fertilizers, reduce soil pollution, and ensure the quality of vegetables. In terms of pests and diseases, each type of vegetable has its own special pests and diseases. If the same vegetable is grown repeatedly, it will cause this kind of pests and diseases to happen repeatedly. Rotation will greatly reduce this possibility, and pests and diseases will not be able to survive, and will be transferred or die. In addition, it can also inhibit the growth of weeds. Weeds are generally half-life with vegetables, and they also secrete harmful substances to contaminate the soil, destroy biological enzymes in the soil, and destroy the growth of vegetables. Vegetables will increase this damage during the same period. If the crops are rotated properly, the number of weeds in the field will be greatly reduced.
3. The main points of vegetable rotation 1. Different crop rotations of the same family of vegetables will have the same diseases and pests. Rotation of vegetables of different families can make the pathogens lose their hosts or change the living environment, so as to reduce or eliminate the pests.
2. Different rotations of absorbed nutrients and different root distributions Rotation according to the degree of soil nutrients absorbed by vegetables and the distribution of roots depth, so as to make full use of soil nutrients and reduce fertilizer costs.
3. Pay attention to the effect of soil pH and fertilizer. After planting cabbage and potatoes, the household increases the acidity of the soil, and after planting corn and pumpkin, it will reduce the acidity of the soil. The onion, which is sensitive to acidity, is used as a seedling and a stubble for pumpkin, so that a higher yield can be obtained.
Fourth, the common vegetable rotation is best for potatoes. 1. Before the rotation, the stubble is green onion garlic, cucumber, followed by cereal crops and soybeans.
2. Avoid cropping a. Solanaceae crops should not be rotated with each other;
b. Rotation with root vegetables is not suitable.
3. Precautions for interplanting a. Select early-maturing varieties with short plants;
b. Shorten the symbiosis period as soon as possible, staggering the peak period of product organ formation;
c. Reasonable management of temperature, light, water and fertilizer.
Welsh onion 1. Rotating vegetable pairing a. Rotating for more than 3 years, rotating with food crops, using onion stubble to cultivate Chinese cabbage and melon vegetables;
b. Planting early-ripening radishes during the pre-growth period, and interplanting spinach and other winter crops in the later period;
c. The early stubble of autumn sowing garlic is best with early ripe beans, melons, eggplants and potatoes;
d. Spring sowing garlic is best with autumn beans, melons, pumpkins, and eggplants.
2, bogey for the most bogey continuous cropping, or stubble with other allium plants.
Chinese cabbage 1, rotation a, and rice rotation;
b. Select vegetables with early harvest period such as eggplants;
c. Vegetables such as cucumber and watermelon that are fertilized before stubble selection.
2. Avoid crop rotation with other cruciferous crops.
Shepherd's purse 1. Rotation a. The best stubble of shepherd's purse in autumn is tomato and cucumber;
b. The spring shepherd's purse is garlic.
2. Continuous cropping is not suitable.
Cucumber 1, rotation a, stubble before spring: autumn vegetables or spring side dishes and over-winter side dishes;
b. After spring stubble: autumn vegetables;
c. Summer stubble of summer and autumn cucumbers: various spring and summer vegetables;
d. Summer and autumn cucumber stubble: overwintering vegetables or spring side dishes.
2. Avoid mutual inhibition of cucumber and tomato. Rotation and intercropping are not suitable.
Tomato 1. Rotation a. 3-5 years of rotation. Interplanting sweet corn in tomato can induce moths to lay eggs and eliminate them intensively;
b. Planting various leafy vegetables and root vegetables in the first stubble, and leafy vegetables and root vegetables in the second stubble;
c. Tomatoes can be interplanted with short-stalk crops or vegetables, such as edamame, cabbage, bulbous fennel, spring onion, garlic, etc.
2. Avoid cropping and continuous cropping with Solanaceae crops.
Eggplant 1. The first stubble is overwintering leafy vegetables, which can be interplanted with early-growing cabbage, early-ripening cabbage, spring radish, water radish, cherry radish and other short-growing vegetables.
2. Autumn vegetables such as Chinese cabbage can be planted in the second crop.
Chili 1. Rotation and intercropping with short-stalk crops such as leafy vegetables, root vegetables and peanuts.
2. Avoid cropping and continuous cropping with Solanaceae crops.
Melon 1. Rotate vegetables and rotate crops for 3 to 5 years. Planting melons with leafy vegetables in the first stubble and leafy vegetables in the second stubble can increase yield significantly.
2. Avoid bogey and stubble with other melons.
Beans 1, mainly including kidney beans, peas, Dutch beans, sweet and crisp beans, frame beans and so on.
2. Rotation: Rotation for more than 3 years, the first crop is autumn and winter vegetables or free land.
3. Not suitable for continuous cropping.
Carrots 1. Most of the crops of autumn and winter carrots are wheat, spring cabbage, spring cabbage, beans and so on.
2. The following crops can be inoculated with wheat, onion, spring cabbage, green onion, potato, etc.
Winter melon 1, winter melon plant 5-6 plants of ginger, kudzu on one side, taro on the other.
2. After April and May, interplant winter melon or chili or eggplant interplant winter melon in the leek border.
3. Winter melon interplanting tomato, and ginger interplanting in winter.
4. Under the winter melon frame, plant bulbous fennel, lettuce, cabbage and leafy vegetables.
Lotus root 1, lotus root, rice rotation, early lotus root can be planted cress, Cigu, water chestnut, watercress.
2. Frequently inter-annual rings with Cigu, water chestnuts and water chestnuts, or intercropping with water chestnuts.
Lettuce can be scallion, garlic, cucumber in the front, and strawberries and tomatoes can be grown in the back.
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