1. Temperature and humidity control: 1. From 20 to 25 degrees, the temperature in the shed must be kept at not less than 10 degrees to meet the needs of vegetable growth. 2. Humidity: The humidity in the shed is 60-70%. Less than 50% will affect the photosynthesis of pepper and the absorption of nutrients. Higher than 70% will cause protruding or disease.
2. Field management: 1. Temperature management: No ventilation within one week after planting, mainly heat preservation, and night temperature not lower than 10 degrees. 2. Water management: Peppers are not tolerant to waterlogging due to drought. To obtain high yields, water management must be strengthened. Irrigate during flowering and fruiting periods to keep the soil moist. 3. Top dressing: (1) Light application of seedling fertilizer: 1,000 kg of human excrement or 5-6 kg of urea per mu after the planting survives, combined with cultivating irrigation. (2) Apply flower bud fertilizers stably, and appropriately increase phosphorus and potassium fertilizers. Apply 15-20 kg of urea, 10 kg of ordinary calcium and 10 kg of potassium sulfate per mu. (3) Re-application of flower and fruit fertilizer: nitrogen, phosphorus, and potassium fertilizers are combined, 2,000 kg of human excrement, 15-20 kg of general calcium, 15 kg of potassium sulfate, 20-25 kg of cake fertilizer or 30 kg of compound fertilizer per mu.
3. Prevention and control of plant diseases and insect pests: Greenhouse vegetables provide suitable environmental conditions for the overwintering of plant diseases and insect pests in winter, which will make the plant diseases and insect pests more serious. Therefore, the prevention and control of plant diseases and insect pests is the key to the successful cultivation of greenhouse vegetables.
1. Pepper diseases mainly include virus disease, blight, anthracnose, powdery mildew, bacterial wilt, root rot, etc., pharmaceutical antiviral vitriol, mancozeb, powder rust, agricultural streptomycin, root rot, pepper For the prevention and treatment of rotting, spray the medicine* every 7-10 days, and even prevent 2-3 times.
2. Insect pests mainly include aphids, cotton bollworm, tobacco budworm, etc., spray control with imidacloprid, kungfu, pyrethrum, etc., 7-10 days*, 2-3 times.
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Food And Beverage Additive is a nonnutritional substance that is added consciously, generally in small amounts, to food to improve its appearance, flavor, structure, or storage properties.According to this definition, food fortifiers with the purpose of enhancing the nutritional content of food should not be included in the scope of food additives.Food additives have the following three characteristics: one is to add to the food of the material, therefore, it is generally not eaten alone as food;Second, it includes both synthetic substances and natural substances.Third, it is added to the food for the purpose of improving the quality of food and color, aroma, taste and for the need of anti-corrosion, preservation and processing technology.
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