Planting techniques of vegetables in open field

Prepare the soil before sowing, destroy the dead branches and rotten leaves of the previous crops and bury them deeply. Select vegetable varieties with disease and insect resistance, high quality and high yield, strong stress resistance and good commercial performance. In open field cultivation, plastic film mulching, sprinkler irrigation and drip irrigation can be used to reduce the amount of chemical fertilizer, use more organic fertilizers and use chemical pesticides scientifically and rationally.

1. Prepare the soil before sowing, destroy the dead branches and rotten leaves of the previous crops and bury them deeply. Select vegetable varieties with disease and insect resistance, high quality and high yield, strong stress resistance and good commercial performance. Nutrition bowl seedling, substrate seedling, vegetable grafting technology, improve seedling facilities, improve seedling level, cultivate high quality and strong seedlings, and refine seedlings before transplanting, so as to lay a good foundation for efficient production of pollution-free vegetables.

2. actively introduce and use new technologies for vegetable production, such as carbon dioxide fertilization, under-film irrigation, drip irrigation, reflective curtain, sunshade net, new mulching materials, substrate cultivation, aphid avoidance film and so on. Open field cultivation adopts new techniques such as plastic film mulching, sprinkler irrigation, drip irrigation and so on.

3. Strengthen the comprehensive prevention and control of diseases and insect pests. In the process of prevention and control, agricultural and biological control methods should be widely used, chemical pesticides should be used scientifically and rationally, the use of limited chemical synthetic pesticides is strictly prohibited, and chemical pesticides with high efficiency, low toxicity and low residues should be popularized and applied. Strict rules for the use of pesticide varieties, dosage, time and times.