How do tomatoes expand rapidly?

1. Fruit thinning management: In the process of management, we must ensure the quality of fruits and not be greedy for fruits. According to the plant growth, it is normal to keep 2-3 fruits in the first ear, 2 weak seedlings, 3 strong seedlings and 4 per ear above one ear. The earlier the fruit is thinned, the better, which reduces the waste of nutrients.

2. Pruning and harrowing: timely winding and harrowing vines to prevent nutrient loss and reduce downward bending of stems. Knock out the old leaves under the first ear fruit in time (in the first ear fruit expansion period, just leave a complete leaf under the fruit), increase ventilation and light transmission, and prevent diseases.

3. Temperature management: After entering autumn, the temperature begins to drop, so it is necessary to strengthen temperature management. Generally, it is about 28℃ during the day and 12- 14℃ at night. In the later stage, it is necessary to keep the temperature at night, increase the accumulation of nutrients in tomatoes, and promote the fruit to swell and change color.

4. Foliage fertilizer: Because tomatoes are at the peak of nutrient absorption during the fruit expansion period, it is necessary to carry out the necessary foliar fertilizer at this period, and add Bowman, the central defender, to the foliar fertilizer. Swelling element can improve fruit setting rate, promote fruit expansion and increase yield.

5. Prevent diseases in time: With the decrease of temperature, condensation begins to appear in the shed, and the humidity increases obviously, so it should be prevented in time. Diseases in this period mainly prevent late blight, gray mold and bacterial spot disease. We must pay attention to drug prevention in advance and reduce the pathogen base. According to the weather conditions and the growth of tomato plants, spraying drugs once every 15 days to prevent diseases.