The rotation of vegetables is the same as on the ground in the same place. According to a certain number of years, several vegetables of different nature are alternately cultivated. It is an effective measure to rationally use soil fertility, reduce pests and diseases, and increase labor productivity. When arranging vegetable rotation, you must master the following principles:
1. Rotation with different vegetables: The same pests and diseases occur in the vegetables of the same family. Rotation of vegetables in different families can cause the host to lose its host or change its living environment, thus reducing or eliminating pests and diseases. Such as garlic, onion planting Chinese cabbage, can reduce soft rot of cabbage. Implementing food and vegetable crop rotations and crop rotations have significant effects on control of soil infectious diseases.
2. Rotation of crops with different soil nutrients and different depths of roots: Crop rotation based on the degree of soil nutrient absorption by the vegetables and the depth of the roots can make full use of soil nutrients. Such as the arrangements for more carbonaceous solanaceous fruit, leafy vegetables that require more nitrogen, leafy vegetables that require more potassium, and rhizome vegetables that require more potassium for rotation; arrangements for deep-rooted aphrodisiac, Solanaceous fruits, beans, melons (except cucumbers) were rotated with shallow-rooted leafy vegetables and onion and garlic.
Third, pay attention to the impact of various types of vegetables on soil pH and soil fertility: such as growing cabbage, potatoes, etc., will increase soil acidity, and planting corn, pumpkin, etc., will reduce the acidity of the soil; the onion is more sensitive to the onion as corn, pumpkin After production, higher yields can be obtained. Arranging some leguminous, gramineous vegetables or crops can increase soil structure and increase soil fertility. If long-term cultivation of some fast-growing vegetables, which require more nitrogen, will lead to the loss of the balance of nutrients in the soil and the decline of soil fertility, leading to nutritional deficiencies in some vegetables.
Fourth, consider the inhibition of weeds in previous crops: Some vegetables that grow rapidly or have too high planting density, long growth period, and leaf area coefficient coverage of the soil area, such as pumpkin, wax gourd, cabbage, soybean, potato, etc. It has an inhibitory effect on the growth of weeds; while carrots, celery, onions, etc., due to slow growth or small leaves at the seedling stage, it is easy to breed weeds, so when the cultivation, the former and the latter should be arranged for rotation.
Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
Introduction and application of plant extracts
Plant extracts are chemical substances with biological activity extracted from plants, including nutrients, active ingredients, pigments, fragrances, acids and bases in plants.
Pharmaceutical field: plant extracts can be used to prepare drugs, such as using honeysuckle extract to prepare cold medicine, using licorice extract to prepare anti-inflammatory drugs, etc. At the same time, plant extracts can also be used to produce health products, such as the use of grape seed extract to prepare antioxidant health products.Cosmetic field: plant extracts can be used to prepare cosmetics, such as the use of green tea extract to prepare skin care products, the use of lavender extract to prepare perfumes, etc. The natural properties of plant extracts make them have a wide range of application prospects in cosmetics.
Food field: Plant extracts can be used to prepare food products, such as tea beverages using tea polyphenol extracts and fruit juices using anthocyanin extracts. The natural properties and biological activities of plant extracts make them have a wide range of application prospects in food.
In the field of health care products: plant extracts can be used to prepare health care products, such as the use of grape seed extract to prepare antioxidant health care products, the use of yeast extract to prepare immunity-enhancing health care products, etc. The natural properties and biological activities of plant extracts make them have a wide application prospect in health care products.
In conclusion, plant extracts have a wide range of application prospects to meet people's pursuit of natural, healthy and green lifestyles.
Plant Extract,Psyllium Husk Extract,Cordyceps Militaris Extract,Natural Ginseng Root Extract
Shaanxi Changsheng Industrial Co., Ltd. , https://www.cncsbio.com