The late autumn cultivation of greenhouse peppers means that the production of peppers is delayed through the protection of facilities until the cold autumn season. This type of cultivation method is characterized by high temperature and high humidity in the early stage, lower temperature in the middle and later stages, and slower growth of the peppers. The following points should be noted in management:
1. Water and fertilizer management. On the basis of planting water, planting water on the third day after planting. Then the cultivator loosened the soil in time and sealed the ditch. The peppers were in the ditch when they were planted. After the soil was cultivated, the original ditch was turned into a ridge. The original ridge back became a ditch, but the cultivated soil should not be too high, and 13 cm is appropriate. Appropriate planting seedlings after ditching the soil encourages the root system to develop in depth, reaching deep roots and leaves. At this time, if there is too much water and fertilizer, it will easily lead to plant leggy, and the fruit setting rate will be reduced. Pepper does not require high humidity, if the air humidity is often higher than 50% to 60%, easily lead to plant leggy, resulting in falling flowers, door pepper sit still. When the fruit of the first layer reaches a size of 2 to 3 cm in diameter, the stems and leaves of the plant and the flowers and fruits grow at the same time. Watering and top dressing should be promptly applied. Each mu of fermented and excreted human urine 500 to 1000 kg or urea 10 kg. After the fertilization, the cultivator should be cultivated in time to improve the permeability of the soil and improve the soil fertility.
In the full fruit period, the plants grow tall, and the hair and the results are performed at the same time. In order to prevent premature plant failure, timely harvesting of the lower layer fruits (mengjia and pepper) and watering must be performed. Mu is diluted with roots of 5 to 10 kg and used alternately with urea and other fertilizers to keep the soil moist for the benefit of Plants continue to grow and flower and set fruit.
As a result, the management of water and fertilizer should be strengthened in the later period to promote the multi-results of pepper and increase the yield. Top dressing can be alternated with watering, after pouring water for 1 time, top dressing fertilizer is combined with watering once again, and application of Sanyuan compound fertilizer or potassium dihydrogen phosphate 10 kg or real root 5 to 10 kg per mu, every 7 to 8 days Watering once.
2. Temperature management. When the temperature outside the shed is still higher than 15Â°C, the air can be ventilated all day and night. The better the ventilation is mastered, the stronger the pepper trees are, and the less flowering and fruit drop phenomena occur. If the temperature outside the latrine falls below 15Â°C during the night, the growth of the chillies will be slow, and the fruit enlargement will also be slow. At night, the sheds and sheds should be tightly closed. Only when the temperature is high during the day, the chills will be released, keeping the shed temperature at 20Â°C. 25 Â°C, in order to facilitate the expansion of the fruit. Before the outside minimum temperature drops to close to 0Â°C in the night, a temporary small arch shelter should be added immediately for cold insulation. If it is too late to buckle a small shed, a plastic film can be used to cover the pepper tree again to avoid freezing the plants and ensure the growth of young fruit. In the sunny hours, it is also advisable to carry out a short-time ventilation at the lee place to eliminate harmful gases in the shed, supplement oxygen and carbon dioxide, reduce the temperature in the shed, and reduce the occurrence of diseases.
3. Chemical regulation. When pepper grows at the early flowering stage, it can be controlled by plant growth regulators such as paclobutrazol, chlormequat, or chlorhexidine. In order to increase the fruit setting rate, 2,4-D or anti-dropping agents can be used.
4. Pruning. The pepper grown in the greenhouse grows vigorously, the plant type is tall, and the branches are easy to fold. It is convenient for operation and convenient for ventilation and light transmission. A plastic rope can be used for hanging branches or bamboo shoots can be fixed horizontally on the outside of the ridge to prevent plant lodging. The branches that are too thin and the old leaves and fruitless branches on the lower part of the plant can be sparsely cut to save nutrients and are conducive to air and light transmission.
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