Technical specification for pollution-free production of open field pepper (middle)

Eight, field management

1, the previous management of seedlings after larvae scratch 1 or 2 times, warming and protecting the roots, promote hair roots. In combination with watering, 8 kg of urea and 20 kg of potassium sulfate are applied per 667 m2. When the diameter of the first fruit reaches 2 to 3 cm, 20 to 25 kg of nitrogen-phosphorus-potassium compound fertilizer (15-15-15) per 667m2 is obtained. After top-dressing and watering, timely cultivating loose soil to facilitate plant growth and fruit development.

2. During the harvest period, the fruit of the lower layer will be cultivated into 10-15 cm high ridges before harvesting. In the full fruit period, small water should be poured and the soil should be kept moist. In order to increase the fruit setting rate, 20 mg/kg to 30 mg/kg of anti-dropping agents can be sprayed. When each layer of fruit diameter is 20 to 30 cm, apply NPK fertilizer (15-15-15) 25 to 30 kg per 667m2, fertilize with 0.3% potassium dihydrogen phosphate and spray once every 7 days.

3, the results of the latter part of the management results timely watering, combined with watering, urea 8 to 10 kg per 667m2. In order to prevent plant aging, it is possible to spray 0.2-0.3% potassium dihydrogen phosphate solution 1 or 2 times.

4. The plant adjusts the peppers and sets the following collaterals of the peppers after the fruits are set. The result is that the old leaves, yellow leaves, and diseased leaves at the bottom of the plants are removed lately and the invalid branches are removed.

9. Pest Control

1. Major pests and diseases Virus disease, epidemic disease, root rot, gray mold, cotton bollworm, tea plant, aphid.

2. Agricultural control

(1) Selection of disease-resistant varieties High-resistance and multi-resistance varieties were selected based on the main pest control targets and the planting status of flies.

(2) Clean the garden to timely remove diseased leaves, diseased fruits, and remove diseased plants. Take out the land for harmless treatment and reduce the number of worms.

(3) Fitness training Strengthen the environmental regulation of seedbeds and cultivate age-appropriate seedlings. Strengthen nutrient management and improve resistance. Strengthen water management and prevent drought or stagnant water. Results The old leaves and yellow leaves of the base were removed later.

(4) The rotation system should adopt a strict rotation system. The same plot should be cultivated at least 3 years apart from the non-solana fruit.

(5) Protection of facilities Summer nursery and cultivation should use insect-proof nets and shade nets to shade and prevent insects from growing, thus reducing the occurrence of pests and diseases.

3, physical control

(1) Insect killing traps use electronic insect killers to trap and kill pests such as Coleoptera and Lepidoptera. The height of the insecticidal lamp suspension is generally 1.2 to 1.5 meters from the bottom of the lamp, and the control area of ​​each lamp is generally 1.33 hm2 to 2.0 hm2.

(2) Yellow traps kill yellow insects in the field to trap whitefly, aphids, and leafminers, and 30 to 20 cm of yellow plates are placed 30 to 40 pieces per 667m2, and the height of the suspension is the same as or higher than the top of the plants. ~ 10 cm.

4, biological control

Prevention of virus disease, spraying with 10% of 83-emulsifier emulsion 50-80 times before and after planting; spraying with 72% of agricultural streptomycin sulfate powder 3000-4000 times to prevent bacterial diseases Use 1% Wuyimycin water spray 150 ~ 200 times, control gray mold, anthrax and so on. The cotton bollworm was controlled with 500 times Bt (2000 IU/mg) emulsion. With 0.9% or 1.8% of avermectin EC 3000-6000 times spray to prevent leaf spot fly and whitefly.

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