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First, intercropping with corn and other crops, set up natural wind barriers. During the interview, the reporter saw that many growers planting open-air celery planted a line of corn on the celery pods. The main purpose was to prevent dry hot air from harming celery. This method can also be used in the production of other leafy vegetables.
Second, a reasonable watering to avoid drought. Open-air dishes should be timely watered in summer at high temperatures to prevent the soil from drying and prevent the plants from drying out. Watering time should be selected in the morning or evening, while not paying attention to flood irrigation, should be pouring water.
Third, cover the surface of the covering to reduce the loss of water. Can cover the straw, weeds, etc., to avoid bare ground and reduce the loss of moisture. This method can also effectively reduce soil temperature and promote root growth. Studies have shown that the plant's ability to adapt to reduced air humidity increases with increasing soil moisture.
Fourth, foliar spray fertilizer, increase plant resistance. In the morning or evening when dry hot winds occur, use full-foliage foliar fertilizers (such as Le Duo Ga, Fang Run, Hao Li Pu, etc.) and chitin to spray foliar vegetables on leafy vegetables to improve their resistance to dry heat. . At the same time, growth regulators such as alginolactone and s-receptor are regularly sprayed to regulate plant growth and improve resistance to stress.
Open-air leaf vegetables to prevent dry hot wind
High-temperature, low-humidity, and certain weather conditions that affect the growth and development of crops and reduce production are called dry hot winds. Since the beginning of summer this year, hot and dry winds have caused more damage to open leaf vegetables, which often causes dry leaves and slow growth of plant leaves. Recently, as the temperature continues to rise, farmers are reminded that friends should strengthen the prevention of dry hot wind on the impact of open-air leafy vegetables. The specific prevention measures are as follows: