There are great ways to ensure the smooth color change

Vegetable farmers know that whether tomatoes change color normally has a great impact on the quality of the fruit. Poor coloration will result in the appearance of flower-faced fruits and green peel fruits, which greatly reduces the commercial properties. The weather is getting colder and colder and less sunny weather will appear frequently. How to manage to ensure the smooth color change of tomatoes?

Adjust the temperature

Tomato coloring is mainly due to lycopene, and the formation of lycopene is limited by temperature, too high or too low will affect. It is understood that the optimal temperature for the formation of lycopene is 19℃~24℃. Therefore, during the transition period, vegetable farmers should adjust the shed temperature at 22℃~26℃ during the day and 15℃~20℃ at night.

Increase the light in the shed

Illumination also has a greater impact on the conversion of lycopene. During the coloring period of the tomato fruit, ensure sufficient light to promote the color change of the fruit. When the rows are relatively closed and the ventilation and light transmission are poor, the coloration of the middle and lower fruits is often unfavorable. Therefore, reasonable pruning and leafing to ensure the permeability is an important measure to promote the color change of tomatoes.

When there is insufficient light in continuous cloudy days, vegetable farmers can improve the coloring efficiency of fruits by installing supplementary lights and hanging reflective screens.

Strengthen fertilizer and water management

After entering the color conversion period, fertilization is also an important factor affecting fruit coloration. If fertilizer application is unreasonable, fruit coloration will be seriously affected. If more nitrogen fertilizer is used, fruit coloration will be slow and green shoulder fruit will easily form; when boron supply is insufficient, The fruit shoulders remain green and have necrotic spots. Fruits with severe nutrient supply imbalance will have the symptoms of painted face. Therefore, it is recommended that vegetable farmers use fertilizer reasonably to ensure comprehensive and sufficient nutrients.

The supplementation of foliar fertilizer is also a good way to meet plant nutrient requirements and promote the color change of expanded fruit. According to the state of plant growth, you can choose the appropriate foliar fertilizer to spray alternately.

Reasonable root cultivation and watering

Root maintenance and management should also be done during the color change period, and rooting agents should be added rationally when watering to ensure good root absorption. The interval of watering should be based on soil moisture, plant growth and weather changes. Choose a reasonable time for watering, and the amount of water should not be too large. The interval of watering should be relatively stable, and should not be wet or dry. Good and stable water supply is also an important management measure to promote fruit color change.

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