Make full use of soil nutrients. Different types of vegetables have different nutrient absorption. In vegetable cultivation, a reasonable rotation of vegetables that require more nitrogen, phosphorus, and potassium, or a reasonable rotation of deep-rooted vegetables or shallow root vegetables, can make full use of soil nutrients, reduce the amount of fertilizer, reduce vegetable pollution, and improve the quality of vegetables. And production. Therefore, in the production of vegetables, it is best to plant vegetables with more phosphorus and more solanaceous vegetables after sowing with more vegetables that need more nitrogen. After harvesting cucumbers, celery, and spinach, the following year is the best. Planting tomatoes, eggplants, peppers and other vegetables that respond better to organic fertilizers. Suppression of pests and diseases. The rotation of different kinds of vegetables can make the pathogens lose the parasitic environment, and then reduce or disappear, thus reducing the dosage, saving the expenses, reducing the degree of pesticide pollution, saving the labor force and reducing the production cost. For example, planting Chinese cabbage after onion and garlic harvesting can significantly reduce the incidence of soft rot disease in Chinese cabbage; if grain and vegetable rotation and water and dry crop rotation are adopted, it is more effective in controlling soil infectious diseases. Balance soil nutrients. Planting leguminous crops can increase soil organic matter content and increase soil fertility. Long-term planting of leafy vegetables that require more nitrogenous fertilizers will unbalance the nutrient elements in the soil. Therefore, in the growth, the growth period and the growth period are short, and the vegetables or crops needing more fertilizer and less fertilizer are properly planted to balance the soil nutrients, which can effectively avoid the adverse consequences caused by the predatory planting operations. Inhibition of grass damage occurs. 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 a significant inhibitory effect on weeds; carrots, celery and other seedlings are slow, Ye Xiao, planting these vegetables is easy to breed weeds. If these vegetables are planted in rotation, they can effectively suppress the occurrence of weeds, reduce the damage of weeds, reduce the strength of weeding, and ease the contradiction of agricultural management. (Feng Guoming) Lysine Aspirin,Indomethacin Capsules,Analgesic & Antipyretic,Diclofenac Injection Uses NINGBO VOICE BIOCHEMIC CO. LTD , https://www.pharma-voice.com