In the spring production of field peppers, it is common for peppers to grow well in the early stage and may suddenly appear wilting; some peppers grow slowly and stiffly but do not produce hair; and others have serious flowering and fruit drop. These phenomena are often referred to as physiological obstacles, mainly due to water and fertilizer. Management mistakes.
Fertilizer factors Before the colonization of peppers in greenhouses, excessive nitrogen fertilizers were applied, and the decomposition of nitrogen resulted in acidification of the soil. Excessive urea can easily decompose to produce nitrogen dioxide gas. When the concentration reaches 2 to 3 mg/l, the pepper will suffer damage.
Excessive application of bio-organic compound fertilizer, some farmers apply nitrogen, phosphorus, potassium content of 25% of bio-organic compound fertilizer more than 100 kilograms, the concentration of soil solution over the general occurrence of reverse osmosis phenomenon, causing burning of roots after pepper leaves .
Organic fertilizers that have not been adequately cooked are also used, and toxic gases are also easily produced.
Peppers cultivated in spring and summer in open field, followed by a high concentration of water manure, can also cause chili roots to burn roots, lighter ones to drop and fruit drop, and the most severe ones to die.
The lack of certain nutrient elements in the soil causes the peppers to “green out†and “green outâ€, thereby deforming the plant's vegetative organs.
When the overall nutritional status is poor, more middle pillar flowers are formed. When the nutrition is poor, short pillar flowers are often formed and cannot be pollinated and flowered.
Moisture factors cause seedlings on rainy days, low soil temperature, soil compaction, and pepper seedlings are easily frozen.
When the soil moisture is insufficient and the air is dry, the pepper petiole is easily bent and the leaves droop.
Pingshuo cultivation, after the rain difficult to drain waterlogging, poor soil ventilation, roots for anaerobic absorption, excessive accumulation of toxic substances, large patches of dead hot peppers.
Pepper irrigation before settling fruit: Reduce soil temperature, cause steep growth, delay fruiting and reduce yield.
Water and fertilizer management measures to grab clean seedlings. The farmer said that it would rather be late on one day and not be wet on a single day. The idea is to grab sunny transplanted pepper seedlings, to avoid soil compaction, stiff seedlings, is conducive to the root and soil anastomosis, shorten the slow seedling period, and quickly restore growth. At the same time, transplanting Daejeon should be done with narrow compartments and deep trenches, or sorghum cultivation to facilitate drainage.
Proper watering. 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 grows to about 3 centimeters in length, in case of drought, it can be ditched and irrigated to conduct wet management. Avoid flooding to prevent falling seedlings.
Reasonable with fertilizer. Pepper is very sensitive to fertilizers and is both fertile and fat.
Do organic fertilizer and inorganic fertilizer, organic fertilizer must be fully cooked. Promote the application of bio-organic compound fertilizers, or high-energy compound fertilizers.
Due to the nitrogen application of the soil seedlings as appropriate, in particular, excessive urea cannot be applied.
Both nitrogen, phosphorus, potassium and other large quantities of elements, but also with calcium, magnesium, iron, boron, zinc, molybdenum and other medium and trace elements, to prevent the emergence of chlorosis, chlorosis or abnormal fruit.
To avoid high temperatures, fertilize the manure with low concentration of fresh water. Into the result period, visible seedlings, every 10 to 15 days, the application of water manure or compound fertilizer topdressing.
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