How do vegetables in Huzhou, Zhejiang "cool down" due to continuous high temperature?

How to manage the production and manufacture of fruits and vegetables in hot weather? Recently, the authoritative experts of agricultural technology from the Agriculture and Rural Bureau of this district rushed to Gaibei Town Agricultural Cooperative, Vegetable Industry Co., Ltd. and Songxia Street Community Hualv Greenhouse Vegetable Agricultural Cooperative to give specific guidance on the production technology of high-temperature vegetables.

"In view of today's hot weather and arid climate characteristics, all parts of the country can immediately take' covering the sun and sprinkling water to cool down; Sooner or later, measures such as watering, moisturizing and improving pest control will be taken to further strengthen the production management of vegetable enterprises in the high temperature period to ensure the quality and safety of vegetables and ensure market demand. "Suggestions of agricultural technical experts from the District Bureau of Agriculture and Rural Affairs.

In view of the continuous high temperature weather in our region, authoritative experts in agricultural technology said that in the management method of vegetable production and manufacturing, sunscreen nets should be properly covered to reduce the greenhouse temperature. When the temperature is high and the sunshine is obvious, using external shading and internal shading can obviously reduce the temperature in the greenhouse and improve the germination rate of mature leafy vegetables such as Chinese cabbage No.5 and lettuce. Cucumber vegetables and eggplant vegetables should be covered with sunscreen net after transplanting to promote the slow seedling of the main stem.

Vegetables cultivated in the open field can be covered with wheat straw floating surface for shading and cooling, and standard leaf vegetable garden can be equipped with micro-sprinkler irrigation equipment for moderate watering and cooling. "Farmers can choose to water vegetables in the morning or evening when the temperature is cool; Wheat straw and straw can be laid between rows to reduce the evaporation of soil moisture and maintain the environmental humidity at the root of the main stem. "

The authoritative expert of agricultural technology in this area told The Paper that eggplant, beans and melons can be irrigated by micro-irrigation equipment combined with fertilizer spraying to promote the normal growth and development of vegetables and improve efficiency and quality.

Nowadays, high temperature, drought and air temperature give advantages to the production resources of many vegetable pests such as Spodoptera litura, Plutella xylostella, Bemisia tabaci, Bemisia tabaci and Liriomyza sativae, and it is urgent to improve the level of pest control. Because of the hot weather, the overall growth rate of vegetables is accelerated and the picking spacing is reduced. If biological pesticides are often used, it will inevitably cause safety hazards to the quality of vegetable products.

"In order to reduce the demand for biological pesticides, it is suggested to use solar-powered insecticidal lamps, use 20-25 mesh dark gray shading nets, and apply physical microbial moth-proofing techniques such as traps to prevent early and reasonably reduce the number of insect populations." Suggestions from agricultural technology experts of district agricultural and rural bureau.