Detailed Explanation of Green Vegetable Planting Methods and Technical Key Points

Nowadays many people pay attention to their own health issues, so green vegetables on the market are increasingly valued by people. Although green vegetables are now welcomed by many people, their cultivation has become a big problem. So how to plant green vegetables?

1. Selection of vegetable plot

The production base for pollution-free green vegetables must be planned as a whole, and a location should be chosen far from towns, far from industrial and mining enterprises and major traffic routes, where the soil, atmosphere and water sources are uncontaminated, the soil is fertile, the air is fresh, there is no dust or toxic gas pollution, and the ecological environment is good. Environmental quality shall conform to the provisions of DB221-946-2001. Water sources must be clean and free of harmful substances, and it is strictly forbidden to irrigate with stagnant water or industrial wastewater. Drainage ditches in the production area must be unobstructed to reduce water accumulation, lower soil humidity, and keep the garden clean. Dead branches, rotten leaves and crop stubble must not remain in the field. Timely intertillage and weeding should be carried out. During the interval between crops, seize the opportunity to properly air or expose the soil to the sun, to promote soil maturation and improve soil physical and chemical properties. Remove stubble in a timely manner. Before plowing, remove root stubble, dead branches, rotten leaves and debris.

2. Land preparation and disinfection

Carry out fine land preparation, shallow plowing to remove stubble, and clear away the residual plants, diseased plant residues and rotten leaves of the previous crop, then transport them out of the field for deep burial or burning. Eliminate insect eggs and pupae, clear field weeds, eliminate the transmission and parasitism of pests and diseases, and reduce the occurrence of pests and diseases. During seedling raising, the seeds and seedbed must be disinfected. Seed disinfection is mainly physical, using warm water soaking and high-temperature dry heat disinfection. When necessary, select high-efficiency, low-residue pesticides for seed soaking or seed dressing disinfection. The seedbed may be laid with heating wires to raise the seedbed soil temperature for disinfection, or disinfected with 40% formaldehyde. If the cultivation site is a greenhouse, fumigation disinfection with agents such as sulfur powder should be carried out before transplanting the seedlings.

3. Select high-quality, high-yield, disease- and pest-resistant varieties

Good seeds are the foundation of high yield and quality. In recent years, practice in various places has fully proved that selecting excellent vegetable varieties with good stress resistance is the internal cause and key technology for obtaining high-quality pollution-free green vegetables, and is a technique that yields twice the result with half the effort. Therefore, all places should adapt to local conditions, vigorously promote excellent vegetable varieties with strong stress resistance, and select vegetable varieties with high quality, high yield, strong stress resistance and good marketability, so as to lay a solid foundation and create prerequisites for the production of green vegetables.

4. Do a good job in seed treatment

Seeds are soaked with nucleotides. Soaking seeds in warm water at a constant temperature of 50-55°C for 20 minutes can achieve the effect of seed disinfection. Use nutrient pots and greenhouse electric heating for seedling raising. In seedling management, measures such as high temperature to promote rooting and early hardening of seedlings are adopted to prevent excessive growth, reduce seedling-stage diseases, make the seedlings grow robustly, and enhance disease resistance. Strictly screen strong seedlings free of pests and diseases before entering the cultivation site.

5. Field fertilization techniques

Give priority to organic fertilizer, and reduce or avoid chemical fertilizer as much as possible. Before plowing, apply 4000——5000 kg per mu of high-quality barnyard manure, compost, waterlogged manure, biogas manure, green manure, straw and other farmyard manure, and turn it into the deep part of the plow layer, along with shallow-layer fertilization. Apply 150—200 kg per mu of decomposed cake fertilizer, and mix in compound bacterial fertilizer to inhibit the occurrence of pests and diseases. For topdressing, give priority to decomposed human excrement or dried night soil, supplemented by growth regulators and micro-fertilizers. During the growth period, humic acid nutrient solution---Life Element and Vegetable Spirit can be used for foliar spraying, so as to coordinate growth