Suggestions on Production and Management of Vegetables in Facility in Rainy and Hazy Days

Facility vegetable production management recommendations:

One is to strengthen field management. Before the onset of rainy and haze weather, plants with weaker growth or more fruit should be harvested in time, and appropriate amount of flowers and fruits should be thinned.

The second is to scientifically manage fertilizer and water and reduce agricultural operations. Strict water management, and generally try not to water or fertilize. If the vegetables are short of water, you should choose a good day with clear weather, and use drip irrigation under the film or water under the film to avoid lowering the ground temperature.

The third is to supplement light reasonably. (1) In the case of low temperature and haze days, without affecting the temperature in the shed, the grass thatch should be opened every day to strive for scattered light to maintain the slow growth of vegetables. (2) Clean the shed film frequently to increase transparency and light intensity. (3) Hang aluminum-plated reflective screens indoors, and apply supplementary lights where possible to increase light to promote the slow growth of seedlings.

The fourth is to prevent the occurrence of diseases, which can be prevented by aerosol and dust.

Fifth, after the haze is overcast, in the case of sudden fine and high temperature weather, do not open the grass thatch at the same time and all the grass thatch should be opened one after another at intervals. When the temperature is increased, the air can be released for a short time when the noon high temperature is used, and the air volume should be small but not large to facilitate the exhaust of harmful gases.

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