Detailed Explanation of Key Technical Points for Growing Green Vegetables
Before sowing, prepare the land and destroy by deep burial the withered branches and rotten leaves left over from the previous crop. Choose vegetable varieties that are resistant to pests and diseases, of high quality and high yield, strongly stress-resistant, and with good marketable qualities. For open-field cultivation, techniques such as plastic film mulching, sprinkler irrigation and drip irrigation can be used for watering, minimizing the use of chemical fertilizers and using more organic fertilizers, while applying chemical pesticides scientifically and reasonably.
1. Before sowing, prepare the land and destroy by deep burial the withered branches and rotten leaves left over from the previous crop. Choose vegetable varieties that are resistant to pests and diseases, of high quality and high yield, strongly stress-resistant, and with good marketable qualities. Use nutrient pot seedling raising, substrate seedling raising and vegetable grafting techniques, improve seedling-raising facilities, raise the level of seedling cultivation, and grow high-quality strong seedlings; harden the seedlings before transplanting, laying a good foundation for efficient production of pollution-free vegetables.
2. Actively introduce and use new vegetable production techniques. For protected cultivation, apply carbon dioxide fertilization, sub-film irrigation, drip irrigation, reflective screens, shade nets, new covering materials, substrate cultivation, aphid-repelling film, etc.; for open-field cultivation, use new techniques such as plastic film mulching, sprinkler irrigation and drip irrigation.
3. Strengthen integrated pest and disease control. In the control process, agricultural, biological and other control methods should be widely applied, chemical pesticides should be used scientifically and reasonably, the use of restricted chemically synthesized pesticides is strictly prohibited, and high-efficiency, low-toxicity, low-residue chemical pesticides should be promoted and applied, with strict adherence to application procedures regarding pesticide varieties, dosage, timing and frequency.