Pepper, a kind of vegetable, must be a green product that is pollution-free, safe, and nutritious. Fertilizer technology must be based on the application of organic fertilizers, supplemented by multiple compound fertilizers, and banned on industrial waste, municipal solid waste, and sewage sludge. Mud, eliminate the use of urea, ammonium nitrate and other nitrogen fertilizers. The fertilizer-demanding laws and fertilization techniques for non-polluted peppers are now described as follows. The fertilizer requirement of peppers The amount of nitrogen, phosphorus, potassium and other nutrients absorbed by peppers varies during different growth stages. From emergence to budding, plant roots are small and leaves dry, and dry matter accumulation is slow. The nutrients are also low, accounting for about 5% of the total absorption; from the buds to the early flowering plants grow faster, the vegetative bodies expand rapidly, the dry matter accumulation gradually increases, the absorption of nutrients increases, and the total absorption 11%; From early flowering to full bloom, the result was a period of vegetative growth and reproductive growth of pepper, which was also the period with the most uptake of nutrients and nitrogen, which accounted for about 34% of the total absorption; from flowering to maturity, the plant's vegetative growth was weak. At this time, the demand for phosphorus and potassium is the most, accounting for about 50% of the total absorption. After the ripening fruit is harvested, in order to promptly promote the growth and development of the foliage, a large amount of nitrogen fertilizer is required. The fertilizing technology of peppers first applies the base fertilizer according to the requirements of the fertilizer and the fertility of the peppers. At each stage of the growth and development of the peppers, according to its requirements for nutrients, fertilizers of different types and quantities are applied and scientific fertilizers are applied. Do "one control, two promotions, three guarantees, four taboos." One control is the control of fertilization during flowering to avoid falling, defoliating, and falling fruit; the second is to apply fertilizer in a timely manner during young fruit and harvest to promote rapid fruit enlargement; By fertilizer damage; four bogey is to avoid the use of high concentrations of fertilizer, avoid wet soil top dressing, avoid high-temperature top dressing, avoid too concentrated dressing. 1, nursery preparation of high quality culture soil. Its preparation method: from the last three years did not plant the soy fruit vegetables and tobacco in the ground to dig the soil, it is best to use onions, celery or cereal crops of topsoil, as soon as possible dug, dried and broken, with 10 Mill sieves were screened for storage; full-commercially cooked manure was used to break the stock. The sifted soil will be mixed in a ratio of 1:3 before nursery. In addition, 1 kg of superphosphate, 20 kg of plant ash, and 0.5 kg of diammonium phosphate should be applied to every 1,000 kg of culture soil. 2, field fertilization. (1) Applying base fertilizer: This is one of the effective measures to promote rapid growth after easing the seedlings and to seize high yields of peppers in advance. Organic fertilizers should be the mainstay, and they must be fully cooked to reduce the introduction of pathogenic bacteria and eggs. Before ploughing, 5,000 kg of high-quality farmyard manure, 30 kg of diammonium phosphate and 100 kg of plant ash were fully decomposed and applied per acre. (2)Scientific top-dressing: enter the young fruit period for the first time, topdressing manure urine 1500 kilograms per acre, if there is no rain after top dressing can water; if the growth is not good, but also pay close attention to in the fruit period The second topdressing, applying three yuan compound fertilizer per acre 10 - 15 kilograms, chasing after watering; harvesting period to chase after the rush, in the sunny day every 5 to 6 days topuring manure excrement, in the early morning or evening Watering fertilizer is good. (3) Foliar spray fertilizer: Its advantage is small dosage, high absorption rate, quick effect, increased chlorophyll content and photosynthesis intensity, is conducive to the accumulation of organic matter, to prevent flowering, fruit drop, generally increase the yield by more than 10%. Spraying 0.1%-0.2% borax aqueous solution during flowering can increase the fruit setting rate. During the whole growth period, 0.3%-0.4% potassium dihydrogen phosphate solution can be sprayed several times, and 50 kg per mu can be sprayed. Appropriately, no more foliar fertilizers were sprayed 15 days before harvest.
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