Vegetable crop rotation four notes
First, pay attention to the need to fertilize the different types of vegetables. Different vegetables have different nutrient absorption. 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 nutrients at all levels of the soil. Second, pay attention to the rotation of vegetables can destroy the living environment of the pests. Rational rotation of different vegetables can cause pathogens to lose their parasitic environment. Such as cucumber wilt, worms, etc., can also infect other melon vegetables. If you change the non-cucurbit vegetable, it will reduce the effect of pests. Such as the implementation of grain and vegetable crop rotation, crop rotation, more effective in controlling soil infectious diseases. Third, pay attention to the impact of various vegetables on the soil pH. Potatoes, kale, etc. will increase soil acidity, while corn, pumpkin, etc. will reduce soil acidity. Therefore, high-yield can be achieved by using acid-sensitive onions as a postharvest for corn and pumpkin. Fourth, pay attention to the inhibition of weeds in the previous crop. Some vegetables that grow rapidly or have high cultivation density, long growth period, and large leaf-to-ground coverage, such as melons, cabbages, beans, and potatoes, have a significant inhibitory effect on weeds. Slow-growing carrots, celery, and small vegetables make it easy to grow weeds. Changing these crops for planting can significantly reduce weed damage.