During the winter season in greenhouses or during the investigation of vegetable production in Daejeon, some common peppers grew well in the early period, and some of the peppers were accompanied by a sudden wilting; some of the peppers grew slowly and were not frozen; some had serious drop and fruit drop. These phenomena are often referred to as physiological disorders, which are caused by a combination of factors, but are mainly caused by mismanagement of fertilizer and water. In terms of fertilizers, the first is the application of excessive nitrogen fertilizers before the colonization of greenhouse peppers, and the decomposition of nitrogen causes acidification of the soil. Excessive urea can easily decompose to produce carbon dioxide. When the concentration of carbon dioxide reaches 2 milligrams per liter, the pepper will be harmed; the second is the application of excessive amount of bio-organic compound fertilizer, and some farmers apply 25% of biological nitrogen, phosphorus, and potassium per mu. Organic compound fertilizer is more than 100 kg, the concentration of soil solution is too large, reverse osmosis phenomenon will occur, and the burning of roots will cause the wilting of pepper leaves; the third is the use of organic fertilizers that have not yet fully decomposed, but also easy to produce toxic gases; Application of high concentrations of manure water can also lead to burning of roots in peppers, light flowers falling and falling, in which the whole plant withered; fifth is the lack of certain nutrients in the soil, so that the pepper lacks green, chlorosis and plant nutrition organs deformity; six is ​​the whole When the nutritional status is poor, more middle pillar flowers are formed. When the nutrition is poor, short pillar flowers are often formed, which cannot be pollinated by self-pollination. In terms of moisture, the first is to plant seedlings on a rainy day. Soil temperature is low, the soil is compacted, and the seedlings of the soil are easily stale. Second, when the soil moisture is insufficient and the air is dry, the pepper petiole is easily bent and the leaves are drooping. The third is cultivation of flat stems and rain. After waterlogging is difficult, poor soil ventilation, anaerobic absorption of roots, excessive accumulation of toxic substances, large patches of dead chilly peppers in the weather, and fourth, irrigation of the peppers before fruiting, will lower the soil temperature, and will cause steep growth. The three will postpone fruiting, and four will reduce production. Therefore, in order to promote the stable growth of pepper, more fruit set, less fall off, must be properly managed fertilizer management, improve the level of scientific use of fertilizer pipe. One is to grab a clean seedling. The farmer said: “It would be rather late on one day, but not wet on a single day.†The implication is to transplant the pepper seedlings in sunny days to avoid soil compaction and stiff seedlings, to facilitate the compatibility of roots and soil, shorten the seedling period, and restore growth quickly. At the same time, it is necessary to transplant the field to make the narrow narrow ditch, or sorghum cultivation, in order to facilitate drainage. The second is watering in an appropriate period. In addition to pouring the roots of the peppers after transplanting the seedlings, the seedlings return to green and are generally not watered before flowering. Mild watering is required for continuous drought. When the young fruit is about 3 centimeters long, in the event of drought, can be furrow irrigation, wet management, avoid flooding irrigation, to prevent down seedlings. The third is a reasonable allocation of fertilizer. Pepper is very sensitive to fertilizers and is both fertile and fat. Therefore, when fertilizing, do not apply too much at one time, but nutrient must be full. The lack of certain elements can easily lead to abnormal fruit, and too much of an element can make the pepper plant physiological imbalance and poisoning, or produce elemental effects between the elements, weakening the absorption function of the root system. Therefore, as long as organic fertilizers and inorganic fertilizers are combined, organic fertilizers must be thoroughly cooked. Promote the application of bio-organic fertilizer, or high-energy compound fertilizer. The second reason is to use nitrogen fertilizers as appropriate for soil seedlings, in particular, not to use excessive urea. Third, we must apply nitrogen, phosphorus, potassium and other elements, but also with calcium, magnesium, iron, boron, zinc, molybdenum and other medium-sized and trace elements, to prevent the appearance of chlorosis, lack of green or irregular fruit. Fourth, to avoid high temperature with a decomposed, low-concentration clean water manure. Into the result period, visible seedlings, every 10 to 15 days, the application of water manure or compound fertilizer topdressing.
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