What are the open-field vegetable cultivation techniques? Key points explained in detail
Prepare the land before sowing, and destroy and deeply bury the withered branches and rotten leaves left by the previous crop. Select vegetable varieties with resistance to pests and diseases, high quality and high yield, strong stress resistance, and good marketability. Open-field cultivation can use techniques such as plastic film mulching, sprinkler irrigation, and drip irrigation for watering, minimize the use of chemical fertilizers, use more organic fertilizers, and use chemical pesticides scientifically and reasonably.
1. Prepare the land before sowing, and destroy and deeply bury the withered branches and rotten leaves left by the previous crop. Select vegetable varieties with resistance to pests and diseases, high quality and high yield, strong stress resistance, and good marketability. Use nutrient pot seedling cultivation, substrate seedling cultivation, and vegetable grafting techniques, improve seedling cultivation facilities, raise the level of seedling cultivation, cultivate high-quality strong seedlings, and 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, under-film irrigation, drip irrigation, reflective screens, shade nets, new covering materials, substrate cultivation, aphid-repellent 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, restricted chemically synthesized pesticides are strictly prohibited, and efficient, low-toxicity, low-residue chemical pesticides should be promoted and applied, with strict adherence to the application procedures for pesticide variety, dosage, timing, and frequency.