The development of modern agriculture is getting better and better, and the cultivation of greenhouses allows seasonal fruits and vegetables to be eaten all year round. In the past, many people felt that the things planted in the greenhouse were anti-seasonal. Eating was bad for the body, but with the popularity of it, everyone also learned that this is only to provide natural growth conditions for fruits and vegetables by changing the temperature and other factors. In fact, it does not affect health. However, although there are many benefits in greenhouse cultivation, there are some drawbacks, that is, there will be more pests and diseases. Some people say that there are many pests and diseases in the open field. However, it is understood that because the environment in the greenhouse is slightly closed, it is not good to expose the land, and it cannot be deep-turned well. Therefore, various germs in the soil will be planted more than in the open air. So, what are the causes of frequent pests and diseases in greenhouses? How to prevent it? Let's learn together with Huinong.com. First, humidity The reason why there are more pests and diseases in the greenhouse is because of a humidity problem. Therefore, we must pay attention to the frequent opening of ventilation, and then pay more attention to watering. Pay attention to watering when plants need water. Sometimes they are not very necessary for water, so don't water them too often. Too much watering affects the temperature inside the shed, and otherwise increases the humidity. Sometimes you need to water, you can also take the form of trenching. In addition to the usual watering, pay attention to the film above the greenhouse. Because the temperature difference between the outside and the inside is relatively large, it is easy to condense the water on the membrane, which will cause the humidity to increase. Therefore, if you want to use this film, you must pay attention to regular cleaning. Then change it to a better one. There will be no film with drops of water. Second, planting density Be sure to pay attention to the density when planting. In addition to the normal line spacing, it is better to have a larger line spacing in the interval. In this case, it will not affect the lighting between the vegetables, and the ventilation and ventilation are better. Third, reduce evaporation Now the weather is cold, and the mulch can be covered during planting, which not only protects the temperature of the land well, but also reduces water evaporation. The evaporation of water is less, and the humidity in the natural air will not be great. Moreover, it can be watered from under the membrane when watering, so that it does not affect the humidity in the greenhouse. After watering, remember to loosen the soil in time, which will have a certain effect on reducing water evaporation. The above are the factors and prevention measures for the frequent planting of pests and diseases in greenhouses compiled by Huinong. The prospects for greenhouse cultivation are very considerable. Farmers must pay attention to these points in addition to daily management to strengthen pests and diseases in greenhouse cultivation. Control, thereby increasing the income of shed planting! Anti-aging And Anti-wrinkle Raw Materials The main culprits of skin aging are: Anti-Aging And Anti-Wrinkle Raw Materials,Anthocyanin Powder,Polyphenols Antioxidant Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyibiology.com
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