2019-12-16 来源: 作者: 点击: Time: 2019-12-16 Source: Author: Hits: Times
Shading nets are cheap , and more and more people are choosing shade nets to stop crops, such as tomatoes. Let ’s learn more about it.
The use of greenhouse shading nets for mulch cultivation is conducive to providing environmental conditions for the growth of tomatoes and can improve its yield and quality. The first is to select good varieties. In summer, the temperature and rain are high. Virus and bacterial wilt on tomatoes are very easy to occur. The selection of varieties with strong disease resistance is the key to growing tomatoes in summer. The second is to grow strong seedlings. Late June. About 30 days at the seedling stage, the plant is transplanted when there are 5-6 true leaves. There is also fertilization, fertilization, selection of idle winter warm greenhouse cultivation with good ventilation, good drainage and irrigation conditions, and thick soil layers. Cover the shade net directly in the shed On the shelf, the two sides of the net are 1.5-1.7 meters away from the ground; it has the effect of covering strong light at noon to avoid high temperature and illuminating weak light sooner or later. The lower part is also more ventilated, which is conducive to the normal growth of plants and nutrient accumulation.
Finally, we should pay attention to field management, flower preservation, scientific pollination, and growth hormone dip flower treatment methods to increase fruit set rate. We must strictly control the concentration, the concentration is too high, or repeated dip flowers, it will produce deformed fruits, affecting tomato production.