Recently, the vegetable production areas in northern China have entered the alternating weather of cloudy and sunny. In terms of management, vegetable farmers should flexibly change the weather conditions to ensure the safe transition of vegetables in variable weather.
Pay attention to the weather forecast in time, adjust the watering regularly, or reduce the amount of watering before the rainy days, avoid excessive soil moisture, increase the humidity inside the shed, and make vegetables susceptible to diseases. At the same time, the current vegetables are growing vigorously and the drug resistance is poor. Therefore, before the rainy days, the vegetable farmers should reduce or delay the use of drugs to avoid the phytotoxicity of vegetables.
After the rainy days, the vegetables in the shed are prone to wilting. Therefore, it is recommended that the vegetable farmers should cool the sun as soon as possible and do a good job in root maintenance.
The first is to supplement the awning sunshade in time. After continuous rainy days, the cooling agent or mud on the shed will wash away a part of it. Therefore, after the rainy day, it is necessary to remove the shed area water in time to make up the spray cooling agent or mud. Of course, it is also possible to reserve the next amount of dry soil in fine weather. After the weather has passed, dry the soil on the shed area and turn the shed area into mud to increase the shading area.
The second is to use water to cool down. In combination with the soil moisture in the shed, the water temperature is used to reduce the temperature inside the shed by means of planting watering in the shed or water and water in the canal to avoid sudden rise in temperature inside the shed.
Again is rooting. Through the application of acupoints and application of biological fertilizers, the number of beneficial bacteria in the soil is supplemented, the micro-ecological environment of the rhizosphere is improved, the root growth is stimulated, the root group is promoted, and the root diseases are prevented, thereby achieving the purpose of root ecological conservation. Such as root baby, biological complex bacteria and so on.
The final guard work also needs to be done simultaneously. In the morning on a sunny day, the plants are sprayed with water in a timely manner to reduce physiological dehydration and prevent burns on the leaves. After the plant wilting is reduced, 800 times of cytokinin + 600 times of aromatic moisturizing foliar fertilizer, or 600 times of seaweed fertilizer can be sprayed, and appropriate amount of nutrient supplementation is carried out through the leaves.
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