High-yield cultivation techniques of small peppers in stubble

1. Variety selection. Small stubble should be selected as a dry product with compact plant shape, good early maturity, standard pepper shape, and high spiciness. Such as: Mitaka Pepper, Nanyang Red, etc.

Second, timely seedlings. The seedling cultivation time is about 20 days later than the spring stubble peppers. Generally in early April, after the seedbed is built, water it first, and after the water seeps down, the dry seeds are evenly spread in the seedbed, and about 300 grams per acre are planted. The planting amount per unit area is not easy to be too large, otherwise the seedlings are too thin and weak, which is not conducive to returning seedlings after planting. Then cover it with about 1 cm of fine sand, support the bow frame, and cover the film. Watering and weeding at appropriate time in the seedling stage, pay attention to the wind in the later stage, and gradually expose it to the film as the temperature rises.

Third, the fixed value

1. Soil selection. Peppers * Avoid heavy crops. Select sandy soil plots that have not been planted in the past 3 years and have high dry terrain and easy drainage and irrigation.

2, plant early. In order to ensure that the pepper has a sufficient nutrient area, wheat should be harvested in advance as soon as possible, and the stubble preparation must be carried out. Combined with land preparation, 50 kilograms of calcium phosphate and 50 kilograms of carbon ammonia can be applied per acre. The stubble small pepper has a short growing period and a relatively small nutrient area per plant, so it should be densely planted appropriately. When planting, open shallow grooves according to 33-40 cm, and maintain a hole distance of about 15 cm, with 2-3 plants per hole. Because the temperature is high when planting, be sure to water it with the plant to ensure survival.

Fourth, field governance

1. Cultivate and cultivate the soil, and then weed in time after weeding. During the branching period, the soil should be cultivated twice to promote its lateral rooting and prevent waterlogging.

2. Fertilizer and water management, the amount of topdressing of small peppers in wheat stubble should not be too large, especially N fertilizer, otherwise the peppers will not be red in time in the later period, and the quality of the products will decline. * Apply about 30 kg of three-element compound fertilizer per acre during the branching stage. In the later period, it can be combined with pest control and sprayed with foliar fertilizer. Small peppers are afraid of both drought and waterlogging. Watering should be timely in case of dry weather, and waterlogging should be drained in case of heavy rain to prevent water accumulation in the field.

3. Pest control. The main diseases of pepper are: leaf disease, leaf spot disease and virus disease. The occurrence of defoliation and leaf spot disease is related to the weather. The low-lying land is more susceptible to high temperature and high humidity. In the early stage of the disease, it can be controlled with mancozeb or methyl tobzine wettable powder. Viral disease is weak and Early aphid-affected plots are prone to occur, so enhancing plant growth and controlling aphids are key to controlling the disease. The main pests are aphids, cotton bollworm and corn borer. Aphids occur mainly during the branching stage and should be controlled early with imidacloprid. Helicoverpa armigera and corn borer mainly occur in the fruiting period. It is necessary to spray and kill the insects, deltamethrin and other high-efficiency and low-infestation insecticides in the early stage, or use poison bait to trap adult insects.

Fifth, harvest. The stubble peppers are harvested relatively late and are generally harvested before and after the frost. Before harvesting, 40% ethephon is sprayed with 300-400 times liquid to promote ripening, which promotes some green peppers to turn red after harvest, improving the quality of goods and economic income.

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