The harvest period of green pepper is long, and the early-cultivation of mid-shed is harvested from mid-to-late May. After growing in summer, it can be delayed to receive late autumn or early winter. Because green pepper grows slowly in summer, the yield is reduced, the quality is reduced, and the temperature after summer is lower. When appropriate, it can be rapidly grown and flowered to form a second abundance period. Generally, from mid-July to early August, the sweet pepper enters the summer period, the plant grows slowly, the fruit development is slow, and the management should protect the disease. Mainly, lay a good foundation for the second peak of production, technically based on pruning, fertilizer, and shed insulation. In the middle of the greenhouse, the yield of 667 square meters can reach 5,000 kilograms, and the net benefit of 667 square meters is more than 3,000 yuan.
1. Fertilizer management is combined with watering in the early stage of summer. 667 square meters of urea is applied 5-10 kg. After the rain, the water is poured in time to fertilize the weak plants. Before and after the end of summer, the fertilizer is added in the upper and middle of August. 667 square meters of urea 10 to 15 kg, or combined with 667 square meters of compound fertilizer 30 kg, to promote slow sputum, after the beginning of the autumn festival into the peak of secondary production, then should strengthen the fertilizer to prevent premature aging. Mainly do two fertilizations, once in late August, once in late September, each 667 square meters of urea 10 to 15 kilograms, usually 1 water per week, 1 fertilizer per 1 time.
After the shed, the fruit is inflated, and it is possible to pick up the fertilizer on a sunny day. It is better to use quick-acting fertilizer. After the temperature is low, the amount of air released is small. To avoid excessive humidity in the shed, as long as the soil is not excessively dry, in principle, it is no longer Watering.
2. After trimming summer, the plants can be trimmed to rejuvenate and stimulate the growth of new shoots. The method of pruning is to remove the branches above the third layer of fruit and cut them after two sections. After pruning, it is necessary to strengthen the management of fertilizer and water, promote the development of new branches, flowering and fruit setting, and strive to sit on the fruit before the shed, and pruning at the latest at 8 The middle of the month is over.
3, after the shed shed insulation into the autumn, as the temperature drops, it is necessary to cover the plastic film and carry out the cultivation after the autumn. The time for kicking the shed should be determined by the time, the temperature is too high, the growth is unfavorable, the temperature is too late, and the fruit is difficult to mature.
Generally, in the second half of September to the end of October, the minimum temperature is lower than 15 °C. The shed is covered with a film, and the wind is released at noon. The daytime is not higher than 30 °C. The grasshoppers are added around the end of October to the beginning of November, so that the night temperature in the shed is higher than that. 12 to 15 ° C.
When the first shed is closed, it is forbidden to buckle the whole shed. It should be carried out step by step. At the beginning, only the shed will be buckled and displayed as a canopy. As the temperature drops, the surrounding shed film will be buckled at night and uncovered during the day. When the minimum temperature of the outside world drops below 15 °C, the whole shed should be buckled at night. During the daytime, the temperature is high during the daytime, and the temperature in the shed is reduced. When the outside temperature drops sharply, the minimum temperature in the shed is below 15 °C. It is basically no longer ventilated. It is necessary to cover the shed around the greenhouse to keep warm and prevent cold damage and promote fruit ripening.
The conditions are suitable to start fruiting in late September, and enter the peak period in late October. When the outside temperature is too low, the green pepper in the greenhouse cannot continue to grow, so it should be harvested in time to prevent the fruit from being frozen. The greenhouse has good heat preservation conditions, and the fruit can be formed in the first ten days of November. The small air is released in mid-November, and the plant is in a low temperature state, and the fruit can be kept on the New Year's Day. The cultivation of green peppers in summer is more likely to occur in the late stage of growth due to the high temperature and high humidity in the shed. It is necessary to pay attention to the prevention and treatment, and can use 75% chlorothalonil WP 600 times or 45% chlorothalonil aerosol or 58. % metalaxyl manganese zinc wettable powder 500 times liquid or 80% anthrax fumei wettable powder 800 times liquid for prevention and treatment.
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