In the early spring, have everyone's peppers been planted? What are the areas that need attention in early spring pepper greenhouse cultivation techniques? The following Hui Nong network Xiaobian will take everyone to learn the technical regulations for the production of pepper early spring greenhouse.
1 variety selection
It is advisable to use excellent varieties with early maturity, high yield, disease resistance and good fruit quality. It can be used to surpass 98A, Luojiao 316 and Xiangshao No.6.
2 Soil preparation, application of base fertilizer, and greenhouse disinfection are basically the same as tomatoes
3 colonization
10cm deep ground temperature can be fixed at 13 °C for about one week. Usually planted in mid-March. The depth of planting is the same as that of tomato. It can plant 2200-2600 holes per acre and double plants per hole.
4 greenhouse management
4.1 Strengthening temperature and humidity management
After planting, in order to promote slow seedling, no ventilation for 5-6 days, the shed temperature is maintained at 30~35 °C. After the seedlings are slowed down, start to ventilate and cool down to 28-30 °C. If it is higher than 30 °C, it should be ventilated immediately. Otherwise, it will affect the pollination due to high temperature and high humidity, which will cause serious flower falling. Strengthening ventilation can effectively increase the fruit setting rate. Peppers are like air drying and the soil is moist. Therefore, after planting the seedlings, it is necessary to strengthen the ventilation. When the nighttime outside temperature is not lower than 15 °C, it should be ventilated.
4.2 Strengthening fertilizer and water management
After the slow seedlings can be seen, the watering can be poured once, and the seedlings can not be easily watered before the seedlings are harvested. Otherwise, under the conditions of high temperature, high humidity and excessive moisture, it is easy to fall and fall. When the pepper starts to be harvested, it is necessary to strengthen the watering and topdressing. More organic fertilizers and increased application of phosphorus and potassium fertilizers are conducive to high yield and quality. Topdressing is to apply 1000kg of manure or 20kg of compound fertilizer per acre.
4.3 Plant adjustment
All the side buds below the door pepper are knocked out, and the old leaves and diseased leaves are destroyed in time to facilitate ventilation and light transmission.
4.4 Grasp the prevention and control of pests and diseases, and harvest them in time
(1) Anthracnose: Both the fruit and the leaves are damaged, but the fruit is mainly damaged. When the fruit is damaged, the lesion is brown, nearly round to irregular, initially water-soaked yellow-brown round lesions, the center is gray-brown, the surface of the lesion has a raised concentric pattern, and the wheel pattern often consists of many small black spots. integrated. When wet, the surface of the lesions overflows with red viscous material, and the temperature is high and the humidity is heavy. After the onset, it can be controlled by using 70% sensible zinc wettable powder 400 times solution, or 50% carbendazim WP 800 times solution or 75% chlorothalonil WP 500-600 times solution.
(2) Epidemic diseases: stems, leaves and fruits can be affected, initially with water-soaked soft rot, dark green, and mildew when the humidity is high. High temperature and high humidity are easy to occur. After the onset, 40% Ethylphosphorus aluminum wettable powder 200 times liquid, or 75% chlorothalonil wettable powder 600 times liquid can be used for prevention and treatment. 72% of Plex spray or irrigation root can also be used. The therapeutic effect.
As for the early spring cultivation techniques of peppers, this is the case, and the interested vegetable farmers can take the time to learn!
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