After the vegetables enter the result period, due to the influence of weather, light, temperature and other factors, it is easy to produce malformed flowers, which will lead to the appearance of deformed fruit in the result period of the vegetables, thereby affecting the vegetable planting efficiency. The main cause of malformed fruit in spring stalks is the poor flower bud differentiation, and the vegetables usually undergo flower bud differentiation from the three leaves. To guarantee the normal differentiation of flower buds, the following measures must be taken.
First, the control booth quickly and slowly warm seedlings. After the planting of vegetables, in order to promote rapid easing of seedlings, the temperature in the shed is required to be relatively high. In general, the daytime temperature is controlled at 25-30°C and the nighttime temperature is controlled at 15-20°C. When the temperature in the booth exceeds 32°C, attention should be paid to open air, but care must be taken to ensure that the temperature changes drastically.
Second, strengthen fertilizer and water temperature management. After the vegetative seedlings of vegetables need to gradually increase the amount of air release, reduce the temperature inside the shed. This time is generally not watered and fertilized. If the soil in the greenhouse needs watering, it is necessary to pour small water and avoid flooding. Half a month after colonization, no fertilizer application is required in principle. The temperature management of the vegetables after the slow emergence can be maintained at 25-30°C during the day and 10-15°C at night.
Third, strong root disease prevention. After easing the vegetables, they are eager to cover the mulch. It is necessary to intensify the ploughing work, increase the permeability of the soil and promote the development of the root system. In order to prevent dead seedlings and root diseases, it can be pulverized once with prick 600 times liquid and gold mine 800 times.
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