In summer and autumn, when the weather is hot and the vegetables are cultivated in open field, the damage caused by high temperature is more serious. If you want to protect the benefits, you must take necessary protective measures.
First, a small vegetable plot can be set up to cool the shady shade. The sheds are covered with branches or grass.
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 hot day when shade must be applied. Vegetable farmers can build a temporary small shed and cover the shade net outside. This can not only reduce the temperature but also protect the light, but it can also prevent heavy rain.
Third, the ground covered with thin grass or hay. After irrigating after sowing, the seedbed can be covered with thin grass, hay, etc. to cool and moisten the seedlings. When 60% of the seedlings are unearthed, the coverings can be peeled off one by one, allowing the seedlings to gradually lengthen the light exposure time to prevent the seedlings from being exposed to the sun and suffer damage.
Fourth, increase the number of leaves of vegetable plants themselves to shading. When topping the tomatoes in summer season, two layers of leaves should be kept in the top layer. Upper side branches of pepper vegetables, leave the leaves and then go to the head, can also play the role of cooling shade. There are summertime watermelons in the open air. The farmers can use their leafy melon vines to cover the melon body, which can also play a role in cooling the shade.
Fifth, irrigation cooling. After irrigation in summer vegetable fields, it is best to cover wheat straw or wheat bran on the surface, or cover a thin layer of dry soil to reduce evaporation of water and reduce the temperature of the ground. In addition, watering takes place in the morning or in the evening. In the event of heavy rain, we must also pay attention to the elimination of water in the field in time, and then use well water to control vegetable fields in order to reduce the temperature. Using spray irrigation not only increases the air humidity, but also lowers the ground temperature.
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