Recently, it was the peak period for the cultivation of open field summer vegetables in our province. The vegetable in greenhouses also entered the period of marketization and growth. The farmers should pay attention to the changes in the weather and do a good job in summer vegetable colonization and vegetable management. Do a good job in colonization of summer vegetables The production of open field summer vegetables in our province is the most important aspect of vegetable production. The cultivated area is larger. The main varieties are tomato, cucumber, zucchini, eggplant, and pepper. Into the middle of May, the cultivation of open field summer vegetables in our province has been gradually launched into the late May, summer vegetable planting work in full swing, all local farmers should pay attention to do a good job in the colonization of summer vegetables. Before the summer vegetable is planted, the amount of air blown from the seedbed should be gradually increased 7-10 days before the planting, and the seedlings should be subjected to low-temperature hardening so that the seedlings can adapt to the growing conditions in the initial stage of colonization. The temperature of the seedbed during the low-temperature hardening period, melons, eggplants, and peppers are maintained at about 20°C during the day and 12-13°C at night; tomatoes, 16-17°C during the day and 10°C at night. Ventilation training seedlings should pay attention to the prevention of frost frozen seedlings or high-temperature roasted wound seedlings, but also to prevent bed leaks caused by seedlings leggy. Before planting, it is necessary to prevent the seedlings from carrying pests and land. If locusts, diseases, etc. are found, they should be sprayed in time to destroy the pests in the seedbed. In order to apply the full amount of fertilizer on a well-rounded basis, timely planting should be done in due course. To achieve "four look": look at the sky, choose a small wind weather planting; look at the land, sand land, white areas and land, land preparation early, high soil temperature, can be planted first. Cold pulp, low-lying land and grazing ground, low ground temperature, can be planted later; see seedlings, cold-resistant vegetables, seedlings strong seedlings or good seedlings can be planted early, poor resistance to cold vegetables, seedlings or weak seedlings, can be post-planting Look at the equipment, there is coverage or wind barrier can be planted first, no cold equipment can be planted late. Do a good job in the management of greenhouse vegetables The recent weather is characterized by more precipitation, less light, and lower temperatures. Such climatic conditions have a great impact on greenhouse vegetable production. Therefore, we must strengthen field management in the near future to prevent the spread of pests and diseases. Due to the recent heavy rainfall, the majority of vegetable farmers have to do a good job of field drainage. In the day-to-day management of the greenhouses, the frontier of the greenhouse and the drains on both sides of the greenhouse should be cleaned in a timely manner to prevent rainwater from pouring into the shed, causing roots and diseases to occur. During this period, the weather with high precipitation, low temperature, and poor lighting conditions is very detrimental to the growth of vegetables in greenhouses, especially when the humidity in the greenhouse increases, which can easily cause the spread of diseases. In the daily management, special attention should be paid to the ventilation and dehumidification of the greenhouse, and the excessive humidity in the greenhouse should be strictly prevented. When it rains, put the film down in time to prevent the rain from falling into the shed. After the rain stopped, the ventilation openings should be opened in time to discharge the moisture in the shed and avoid condensation on the foliage. Cloudy weather and low temperature and low temperature are not conducive to the normal growth of greenhouse vegetables, which is conducive to the occurrence and development of vegetable diseases, such as cucumber leaf spot, downy mildew, black spot disease, gray mold, tomato leaf mildew, Gray mold, late blight, bean mold gray mold and so on. In addition to strengthening the ventilation and dehumidification measures in field management, it is necessary to promptly prevent and control the central diseased plants. In particular, it is emphasized that the spraying of pesticides on the leaves should be carried out on a sunny morning, and do not fight drugs on rainy days to prevent excessive humidity in the shed. If there is continuous rain, use aerosols to control the disease. Bacterial Culture,Laboratory Sterile Petri Dish,Disposable Sterile Petri Dish,Disposable Plastic Petri Dish Jiangsu HXRT MD Co.,Ltd , https://www.jshxrtmed.com