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First, a small area of ​​vegetable plots can be set up to cool shady shade. Top boughs or grass rakes.
Second, build a temporary small shed, covering the shade net.
When cabbages, celery, broccoli, and cabbage are grown in summer and autumn, it is a time when the weather is hot and the shade must be shaded. Therefore, it is recommended that vegetable growers can construct a temporary small shed. The outside of the shed can be covered with a shade net, which can not only reduce the temperature but also protect the light and prevent rainstorms.
Third, the ground cover thin grass or hay.
Regardless of the traditional method of raising seedlings or cultivating seedlings with seedlings, after irrigating the seeds after sowing, the seedbeds can be covered with thin grass rakes, hay, etc., which can cool and moisturize and can greatly increase the emergence rate. When 60% of the seedlings are unearthed, the cover can be peeled off, and the seedlings should be lengthened to see the light for a time to prevent the seedlings from being exposed to the sun.
Fourth, increase the number of leaf blades of vegetable plants to shade.
When topping the tomatoes in summer season, two layers of leaves should be kept on top of the top fruit. Upper side branches of pepper vegetables, leaving 2 leaves and then go to the head, but also to shade from the cooling effect. There are summer and midsummer outdoor watermelons in the summer season, and vegetable growers generally use their leafy melon vines to cover the melon body, which can also play a role in cooling the shade.
Fifth, irrigation and cooling, summer irrigation fields, it is best to cover the surface of wheat straw or wheat bran, etc., can also cover a thin layer of dry soil, in order to reduce the evaporation of water and can reduce the temperature. In addition, watering takes place in the morning or in the evening. During the rainy season, we must also pay attention to the timely elimination of water in the fields. After the rain, we should use well water to control vegetable fields in order to reduce the temperature. The spray irrigation method can also reduce the ground temperature and increase the air humidity appropriately.
Six, intercropping intercropping, at present, some vegetable farmers in the sweet pepper for corn, is the use of corn shading effect, can reduce the sweet pepper field temperature.
Open-air vegetable anti-high temperature "six measures"
During the summer high temperature period, cultivation of vegetables in open air is also a serious hazard due to high temperature. In addition to the selection of heat-resistant varieties, open-air cultivation of vegetables can also take the following control measures.