How to grow green vegetables

Nowadays, many people pay attention to their own health problems, so people pay more and more attention to the green vegetables on the market. Although green vegetables are welcomed by many people, the cultivation of green vegetables has become a big problem. So how to grow green vegetables?

1. The choice of vegetable plots

The pollution-free green vegetable production base should be uniformly planned, and should be far away from cities and towns, industrial, mining enterprises and traffic roads, soil, atmosphere and water sources unpolluted, where the soil is fertile, the air is fresh, there is no dust and poison gas pollution, and the ecological environment is good. The environmental quality meets the requirements of DB221-946-2001. The water source should be clean and free of harmful substances, and it is strictly forbidden to irrigate with stagnant water and industrial waste water. The drainage ditch in the production area should be unobstructed, reduce stagnant water, reduce soil moisture, keep the countryside clean, no withered branches, rotten leaves and stubble in the field, timely ploughing and weeding, and seize the opportunity to properly air or expose the soil during the intermission of stubble. promote soil ripening, improve soil physical and chemical properties, timely stubble, withered branches, rotten leaves and debris should be removed before cultivated land.

2. Soil preparation and disinfection

Fine soil preparation, shallow ploughing to kill stubble, removal of previous crop residues, diseased plant residues, rotten leaves, transported out of the field for deep burial or burning. Eliminate eggs and pupae, remove weeds in the field, eliminate the spread and parasitism of diseases and insect pests, and reduce the occurrence of diseases and insect pests. Seeds and seedbeds should be disinfected when raising seedlings. Seed disinfection is mainly physical disinfection, seed soaking with warm soup, high temperature and dry heat disinfection, seed soaking or seed dressing disinfection with high efficiency and low residue pesticide if necessary, seedling bed can be disinfected by laying hot wire to raise the soil temperature of seedling bed, or 40% formaldehyde can be used for disinfection. If the cultivation site is a greenhouse, the seedlings should be fumigated with sulfur powder and other chemicals before transplanting.

3. Select varieties with good quality, high yield and resistance to diseases and pests.

Improved varieties are the basis of high yield and high quality. In recent years, practice in various places has fully proved that the selection of excellent vegetable varieties with good stress resistance is the internal cause and key technology to obtain high-quality pollution-free green vegetables, which can get twice the result with half the effort. Therefore, all localities should take measures in accordance with local conditions, vigorously promote excellent vegetable varieties with strong stress resistance, and select vegetable varieties with high quality and high yield, strong stress resistance and good commodity, so as to lay a good foundation and create prerequisites for the production of green vegetables.

4. Do a good job in seed treatment

The disinfection effect of seeds can be achieved by soaking seeds with ribonucleic acid and soaking seeds in warm soup with 50-55 ℃ warm water for 20 minutes. Using nutrition bowl and greenhouse electric heating seedling, high temperature promoting root, early seedling refining and other measures are adopted in seedling management to prevent overgrowth, reduce seedling diseases, make seedlings grow strong, enhance disease resistance, and strictly screen strong seedlings without diseases and insect pests to enter the cultivation site.

5. Field fertilization technology.

Give priority to organic fertilizer, reduce or not use chemical fertilizer as far as possible, apply high quality circle manure, compost, retting manure, biogas manure, green manure, straw and other farm manure to 5000 kg per mu of cultivated land, and turn it into the deep part of the ploughing layer, and add shallow fertilizer to 150 kg 200 kg per mu of rotten cake fertilizer, mixed with compound bacterial fertilizer to inhibit the occurrence of diseases and insect pests, and topdressing with rotten human feces and urine or dry manure, supplemented by growth regulators and micro-fertilizer. During the growth period, humic acid nutrient solution-life element and vegetable spirit can be used for foliar spraying to coordinate the growth.