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1. Rain prevention and disease prevention Cultivation measures Peppers are cultivated in high temperature summer and autumn. The main guarantee is that the shades and the temperature are reduced. The roof of the greenhouse is covered with a membrane and the ventilation and ventilation are all around. According to tests, the temperature under the shed can be 4-7°C lower than the open ground depending on the thickness of the shed film. If a shade net is placed on the film, the effect of cooling the sky will be more prominent. In addition, many years of experience have shown that when the peppers are in high temperatures in summer and autumn, they basically suffer from disease once every other time. If greenhouses are used for rain-proof cultivation in summer, the incidence and incidence can be greatly reduced. It can be seen that the key to successful cultivation of peppers in summer and autumn is whether they can be cultivated using rain-proof cooling facilities.
2. Methods for cultivation of peppers in the summer 1 Selection of species Selection of light-resistant and heat-resistant varieties of peppers, such as Youxian No.1 and No.2, No.1, No.2 and No.3, Youjia No.3, etc., which are cultivated by the Sichuan Pepper Company, are light-resistant and high-temperature resistant varieties. .
2 sowing time and method of high temperature must be used in summer and autumn, nutrition group (é’µ) mulching root, field planting with soil transplant, in order to ensure adequate seedlings when planting, every nutrition group (é’µ) on-demand 2 to 3 seeds per 667 One square meter (1 mu) has 3500 holes. The sowing time is generally from April to mid-July, and the seedling period is 25-30 days. After planting, sow the straw on the nutrition group (é’µ), and pour enough water to maintain sufficient moisture before emergence to facilitate seedling emergence. Remove 30% of the seedlings and then remove grass straw. Put a shade net on the shed film to ventilate and spray to prevent disease. To prevent the wind from blowing off the film.
3 greenhouses will be planted and built a large shed, shed film. It is required that the shed film be thicker, which can not only prevent the wind from blowing, but also have a better cooling effect. Conditionally on the sunny days, you can catch shade nets on the membrane. If you do not use shade nets, you must remove the shade nets one week before the planting and keep the thin film seedlings.
The amount of basal fertilizer can refer to the amount of cultivation in the spring, but in the summer due to the high temperature of the basal fertilizer, it needs to be buried one week earlier. The ridge height is 25-30 cm, and sufficient water conservation is applied. The planting spacing is 50 cm X 40 cm, and 3350 plants per 667 m 2 are planted. After colonization and survival, when the seedlings are thick, remove excess seedlings and keep the individual plants in each hole. After regular irrigation, the irrigation should not be excessive, and irrigation can be done at 1/2 of the ditch. Pay attention to the growth period to prevent pests.
Waterproof and disease-prevention cultivation techniques for pepper greenhouses in summer and autumn
Peppers can grow well at 17-30 °C under conditions of sufficient fertilizer and water, whether they are slightly acidic or slightly alkaline. If there is no fertilizer or water, the soil is too acidic or too alkaline, and the growth of pepper will increase abnormally due to changes in temperature. Therefore, it is impossible for the pepper to grow well below 20°C and above 25°C. In the case of high temperature, rain, and soil moisture, epidemics are most prone to occur; when high temperature, low temperature, excessive rainfall, and excessive air humidity in the soil, gray mold and bacterial leaf spot disease are most likely to occur; when the soil is dry and the temperature is abnormally high, Viral diseases are most likely to occur. Regardless of which of these diseases occurs, the effects on pepper growth and yield are significant. In order to avoid the excessive concentration of peppers and guarantee the balanced supply of peppers, the following technical measures can be taken: