Open field green pepper fertilization technology

Green pepper is rich in protein, sugar, organic acids, vitamins and a variety of inorganic salts, especially the content of vitamin C is the most vegetables, 73-342 mg per 100 grams of fresh fruit. The growth cycle of green pepper includes three stages: germination stage, seedling stage and flowering result period: the germination period is from seed germination to true leaf exposure; the seedling stage is from the true leaf to the first flower bud, and the basic nutrition is completed at the seedling stage. Growth and flower bud differentiation; the flowering result period is from the first flower to the bud, the early stage of this period (from the first flower bud to the first fruit setting) should be properly controlled to prevent falling flowers. After entering the results period, it is necessary to strengthen the management of fertilizer and water, protect the leaves, maintain the growth of the plants, coordinate the relationship between vegetative growth and reproductive growth, promote the fruit and prosper, and extend the fruit collection period to capture high yield.
Green peppers are not strict with soil requirements. Generally, sand and clay can be cultivated, and loam soil with fertile soil, deep soil and good drainage is preferred. Green pepper has higher requirements on soil nutrition. Such as malnutrition, especially insufficient or excessive nitrogen, or insufficient phosphate fertilizer, often lead to a large number of falling flowers, falling buds, falling bells, potassium is less than nitrogen, otherwise stems and leaves are poorly developed. Because the roots of green peppers are not developed, the requirements for moisture are strict. Combined with the fertility characteristics and fertilizer characteristics of green pepper, the principle of fertilization is:
(1) Re-application of the base fertilizer The growth period of the green pepper is very long. It is very important to apply the base fertilizer. On the basis of the application of the farmyard manure, 45-50 kg of “Tianji” brand NPK fertilizer is applied per acre.
(2) When applying more than 2-3 cm in diameter, the combined use of fruit water for chasing “Tianji” brand nitrophosphate 10 kg per acre; entering the fruity period, combined with the soil to chase “Tianji” per mu. 15 kg of nitrophosphate fertilizer; after entering the rainy season, in order to prevent the plant from de-fertilization after rain, chase "Tianji" brand nitrophosphate fertilizer 15 kg per acre; enter the second flowering result period, in order to ensure the rapid expansion of the fruit, it must be combined with watering Mu chasing "Tianji" brand nitrophosphate fertilizer 20 kg.

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