Now it is hot summer, many summer vegetables, such as tomatoes, cucumbers, zucchini and other vegetables are at the beginning of the fruit, in the summer high temperature glare, long daylight environment is very unfavorable for the growth of summer vegetables, and many vegetable farmers are said Now in my own vegetable field, there are many problems such as pointed, deformed fruit, difficult fruit, virus disease, etc. Xiaobian here only wants to say that the current summer vegetables should focus on the following three management points. Current management points of summer vegetables First, the sunshade will not relax In the current period, the temperature in the greenhouse usually reaches 35-40 ° C, and the night temperature is 20-25 ° C. Such a temperature difference will cause the summer vegetable plants to have a large breathing intensity during the day, and less organic nutrients will be produced at night. Strong respiration can cause serious plant growth and multiple deformities. Therefore, when the cooling effect is still not achieved by the wind release, it is necessary to take measures to cool down in time, such as setting a sunshade net, splashing mud, spraying a cooling agent, etc., to effectively reduce the temperature. Second, rational use of fat and strong root system The summer vegetables have short growth period, high yield and heavy plant burden. In order to promote the growth of plants and delay premature aging, vegetable farmers should pay attention to rational use of fertilizer. The principle of top dressing is to eat less and eat more meals, avoiding excessive burnt roots and causing root burning, which affects the development of plants. In addition to water-flooding, it can also be controlled by top dressing. It can also spray 0.5% potassium dihydrogen phosphate 500 times solution on the foliar surface and combine speed-boron 1500 times liquid or borax 800 times liquid to improve the plant resistance. Promote the growth and development of the fruit of the plant. The higher the cultivation temperature in summer, affecting the growth of roots, vegetable farmers should pay attention to strengthen the maintenance of roots, can choose chitin, amino acid, alginic acid rooting agent, can also apply biological fertilizer. Third, pest control can not be sloppy The summer is currently mainly for the prevention of bacterial diseases and viral diseases under high temperature and high humidity conditions. The main pests to be controlled are aphids, whiteflies, thrips and diamondback moths, which are all high in this period. Pests. After July, the rainfall increased, and the high temperature and high humidity shed environment aggravated the prevalence of bacterial diseases. At present, when the weather is fine, the humidity in the shed is generally not too big. The vegetable farmers are mainly doing the work of cooling down in the shed at this time. In the summer, there are many rains in the showers. If they are encountered, they should be dehumidified in time. If it is found that there are sporadic virus disease plants and vegetables in the greenhouse, the removal of the extraction, and the use of anti-drug Yinglu, Heikui and other agents for targeted prevention and control of virus damage. At the time of high temperature and high humidity, it is suitable for the breeding of aphids, white mites and other pests. If more and more of these pests are not treated in time, they will not only endanger the growth of vegetables, but may also cause viral diseases in greenhouses. Birth spread. Therefore, the vegetable grower should pay attention to installing the insect-proof net at the tuyere, hanging the sticky insect board in the shed, and often inspecting, maintaining and replacing the two. At the same time, the weeds around the shed are removed in time. In summer, it is hot and rainy, and the disease is high. At this time, the summer vegetables are just in the initial fruit stage. If the management is not in place, it is easy to cause fruit drop and fruit. The three management points introduced in the above small series, if you manage according to the main points, it is very difficult for the summer vegetables to grow badly. Let's practice it quickly! Cam Latches,Hardware Latches,Toggles Hooks,Adjustable Toggle Latches Ningbo Hengchieh Locking Technology Co., Ltd. , https://www.yh-lock.com
