In the process of planting tomatoes, we encounter tomatoes. After the results grow up, they are still green for a long time, that is, the surface of tomatoes is not red. Why? What are the reasons why tomatoes are not red? Here are the reasons why the tomatoes I planted are not red. I hope I can help you.
Planting density
Tomatoes are planted at home every year, and a rule has been found in the planting process, that is, if the tomatoes are too dense, the tomatoes will be green and not red. Especially in case of continuous rainy weather, this situation will be more serious. This is because tomatoes are planted too densely, which will affect their ventilation and light transmission. If coupled with the continuous rainy weather, the coloring of tomatoes will be very slow, so some will not turn red. Therefore, tomato planting should pay attention to the density, and for its better growth, it is best to set up a frame.
Temperature reason
Whether tomatoes can turn red is actually related to light and temperature. As mentioned earlier, if the planting is too dense, the lack of light will affect its coloring. The temperature will also affect the coloring of tomatoes. Some people think that the higher the temperature, the redder the tomatoes will be. In fact, this is not entirely true. Although temperature plays a great role in the coloring of tomatoes, it is not the only factor. When the tomato enters the mature stage, it will secrete a kind of lycopene. When the lycopene will be more and more, the tomato will slowly turn red, which means that the tomato is gradually mature. But the best temperature for lycopene formation is 18-26 degrees Celsius. Too low or too high temperature will affect the formation of lycopene. When the temperature is higher than 32 ℃, the formation of lycopene will be blocked. In summer, the temperature in some weather is generally higher than 32 ℃, so it will affect its coloring.
Water and fertilizer management
This is also a very important factor. Tomato is a vegetable that blooms and bears fruit, and its growth cycle is long. Therefore, a large amount of nutrients and nutrients will be consumed in this process. If the fertility in the soil is insufficient and has not been supplemented in time, especially the lack of some important trace elements, such as boron, calcium, copper, molybdenum, manganese and other elements, it will be unfavorable to its coloring. Therefore, if tomatoes remain red, we should also consider whether fertilization is improper and fertilize them in time to ensure high yield of tomatoes.
In addition, there is another reason, which is related to the choice of tomato varieties. Before planting, we should choose high-quality tomato varieties suitable for the local climate and environment.