Rotating several kinds of vegetables of different nature according to a certain number of years on the same plot is an effective measure to rationally use soil fertility, reduce pests and diseases, improve quality, and increase labor productivity. The following points should be noted when implementing a reasonable rotation of vegetables:
First, different vegetables have different needs for nutrients. Make full use of soil nutrients. Different vegetables have different absorption of nutrients, such as cabbage, spinach and other leafy vegetables need more nitrogen fertilizer, fruits and vegetables such as melons, tomatoes, peppers need more phosphorus, potato, yam and other roots and stems need more potassium. The rotation of vegetables with more nitrogen, more phosphorus, and more potassium, or the rotation of deep-rooted vegetables with shallow-rooted vegetables can make full use of the nutrients in the soil. Generally, leafy vegetables with more nitrogen are preferred. Soybeans with more phosphorus need to be arranged. Cucumbers, celery, and spinach, which are fast-sucking, are the best varieties of tomatoes, eggplants, and peppers that respond well to organic fertilizers.
Second, different vegetables have different root depths. Arrangements for deep-rooted root vegetables, solanaceous fruit, beans, melons (except cucumbers), and shallow rooted leafy vegetables, onions and garlics are used for rotation. Fertilizers of different levels in the soil can be used.
Third, different vegetables have different effects on soil fertility. The leguminous vegetables can increase soil organic matter content and increase soil fertility. Long-term seeding of fast-growing leafy vegetables that require more nitrogen will cause the nutrients in the soil to lose balance and the soil fertility will decline, leading to nutritional deficiencies in some vegetables. Therefore, it is necessary to properly grow and grow the vegetables with a short growing period and a short growing period, requiring more fertilizer and less fertilizer.
Fourth, different vegetables have different requirements for soil pH. Potatoes, kale, etc. will increase soil acidity, and corn, squash, etc. will reduce the acidity of the soil. Therefore, after planting corn and pumpkin, high-yield onions sensitive to acidity can be obtained, and potato and cabbage can be re-planted to be acid-sensitive. Onions are cut back.
V. The degree of occurrence of different environmental pests and diseases is different. The same pests and diseases occur in the same family of vegetables. The rotation of vegetables in different subjects can cause the pathogen to lose its host or change its living environment and achieve the purpose of reducing or eliminating pests and diseases. Such as cucumber wilt, locust, etc., can also invade other melon vegetables, if the non-cucurbit vegetable is changed, it will reduce or eliminate the effect of pests; such as onion, garlic after the harvest of cabbage, can make large The soft rot of Chinese cabbage has been significantly reduced; grain and vegetable rotations and flooded and dry crop rotations have had significant effects on the control of soil infectious diseases.
Six, different vegetables have different inhibitory effects on weeds. Some vegetables that grow rapidly or have high cultivation density, long growth period, and large leaf coverage on the ground, such as melons, cabbages, beans, potatoes, etc., have obvious inhibitory effects on weeds; and carrots, celery, onions, etc. Slow seedlings, small leafy vegetables, easy to breed weeds. The rotation of these vegetables can significantly reduce grass damage.
We're Professional Supplier Extract Powder manufacturers and suppliers in China specialized in providing high-quality products at low price. We warmly welcome you to buy or wholesale bulk Supplier Extract Powder for sale here from our factory. For a free sample, contact us now.
Supplier Extract Powder,Supplier Extract ,Supplier Powder Manufacturer in China
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.anabolicsteriod.com