Defensive measures for heat damage of vegetables

In summer and autumn, when vegetables encounter an abnormally high temperature, normal growth and development of plants will be affected, causing high temperature and heat damage. Usually manifested as slow growth of plants, poor flower bud differentiation, pollination and fertilization are affected, fruit drop and fruit malformation increased; fruits and vegetables are prone to sunburn, the diseased part is sunlit gray or light white leathery, tissue necrosis Hard, often decayed due to saprophytic infection. In order to prevent the occurrence of high-temperature heat damage, a variety of defense measures should be taken in addition to heat-resistant and disease-resistant varieties.
The cultivation method is reasonably densely planted so that the stems and leaves shade each other. Intercropping with high stalk crops, using high stalk crop shade. When the tomatoes are pruned over the summer, leave 2 to 3 leaves in the upper part of the ear to shade the sunscreen. After cabbage, broccoli and other balls are picked, the peripheral leaves are removed and covered on the leaves to avoid direct sunlight. After the cucurbit crops are covered, the upper side of the grass can be covered and the bottom pad can be used to prevent sunburn and rotten melon.
With water cooling the summer and autumn high temperature season, timely irrigation can improve the microclimate in the field, reduce the temperature by 1~3°C, and reduce the direct damage to flower organs and photosynthetic organs caused by high temperature.
In the high temperature season, the top-dressing fertilizer is sprayed successively with potassium dihydrogen phosphate solution, superphosphate and ash leaching solution, which is not only beneficial to cooling and humidification, but also can supplement the moisture and nutrition necessary for the growth and development of vegetables, but when spraying Must increase the amount of water, reduce the spray concentration. In addition, tomato spray 0.2% ~ 0.3% than the long, 0.1% zinc sulfate or copper sulfate solution, can increase the heat resistance of plants, with 2,4-D dipping or flowering, can prevent high temperature falling and promote ovary enlargement.
Artificial sun shading above the vegetable field to build a simple shade awning, covered with branches or crop straw, can make the temperature drop 3 ~ 4 °C. Vegetables grown in plastic greenhouses cover shade nets in summer and autumn to cool down 4 to 6°C and prevent heavy rain, hail and locust from directly harming vegetables.

1. Bovine cut small pieces slightly chopped into pieces.
2. Add beef wine tablets, soy sauce, oyster sauce, black pepper, sugar, marinate for 20 minutes. Onions, carrots and garlic cut small particles.
3. Wok sit on the oil, Liu Cheng hot nowadays all the dishes, stir fry until the smell floated, open the fire under the beef stir fry evenly.
4. Pour rice, turn the fire, stir well after adding salt, soy sauce seasoning, sprinkle with black pepper before grinding can stir well.
5 Tips: 1, this dish is not onion ginger garlic, onion and garlic have a rich fragrance. 2, because you want to fried rice, cooking oil slightly larger than the usual amount of cooking.

6. fried rice, homemade, simple, nutritious, delicious, usually when there are leftovers, lazy did not buy food, collecting scraps at home corners, food pot, cute.

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