What is the reason for the poor coloring of strawberries? How should farmers deal with poor coloring of strawberries? In the process of growing strawberries, farmers often ask similar questions. This article will make a detailed summary for everyone, hoping to help farmers better cope with the problem of poor coloring of strawberries.

1. Lack of nutrition

During the period of fruit expansion, the quality of the coloring is inseparable from the nutrition. Too much nitrogen fertilizer is applied during fertilization, and when potassium and boron fertilizers are lacking, the coloring of the fruit will be poor.

Solution: Applying more nitrogen fertilizer before strawberry growth can promote plant growth, but there is not much demand for nitrogen fertilizer in the fruiting period. At this time, it is necessary to apply potassium fertilizer and boron fertilizer. In addition, calcium and other elements can also promote the coloring of strawberries. Therefore, it is necessary to balance the fertilizer when applying it. It is recommended to apply organic fertilizer.

2. Temperature and light

Strawberry coloring is mainly due to the synthesis of a pigment called anthocyanin. This substance is formed in an environment of 20-25 degrees. If the temperature is too high or too low, it will affect its formation, so poor coloring occurs. In addition, if the light is insufficient, the sugar accumulation of the fruit is not enough, and the phenomenon of physiological ginkgo will appear. Finally, the fruit will turn pale yellow and white, and the taste will be lighter. The fruit is soft and easy to rotten, and it is not easy to store.

Solution: Strictly control the temperature and light conditions. During the fruiting period, control it at 20-25 degrees during the day and 15-20 degrees at night. Keep the light for 12-15 hours a day. Prune the stems and leaves to enhance the ventilation and light transmission of the plants. Sex.

3. Long-term fruit contact with the ground

Because the strawberry plant is short and the stem is creeping on the ground, most of the fruit is in contact with the ground in the fruit. This is also caused by the fact that part of the fruit is red and part of the green. This is caused by the fact that the parts in contact with the ground are not exposed to light.

Solution: Turn the fruit regularly during the color change period, so that the side close to the ground can also be exposed to sunlight, or the planting height is too high during planting, so that this problem can be avoided.

4. Excessive use of hormones or bulking agents

In order to improve the market and increase the yield, some fruit farmers often use hormones or expansion agents to promote the rapid expansion of the fruit during the fruit expansion period. This way the fruit is really big, but its anthocyanin formation takes time, so the fruit is large, but the coloring is not good. .

Solution: Use as little or no hormones and swelling agents as possible. These things are harmful to the human body. The temperature and light conditions should be controlled reasonably, and the fertilizer should be scientifically applied to make the fruit big and sweet.