If the tomato is poorly colored, there will be uneven redness of the fruit, which will not only greatly reduce the taste of the tomato, but also affect the sales of the tomato due to poor appearance. So what are the reasons for poor tomato coloring? How to prevent it? Here we will study together.
Tomatoes are poorly colored for the following reasons:
1. First of all, from the tomato's own factors, there are many varieties of tomatoes, and the internal quality and stress resistance of each variety are inconsistent, and the products that are displayed will be equal. It is recommended to select varieties with strong resistance to drought, anti-virus and disease resistance when selecting varieties;
2. Temperature is an important factor to ensure good coloration of tomato. When the fruit is in the coloring period, the tomato coloration is better when the temperature is 18~26 °C. When the temperature is higher than 32 °C, the formation of lycopene is hindered and the coloration is affected. When it is lower than 12 °C, it cannot be Normal coloring. The greenhouse night temperature is too high and the breathing intensity is increased, which is not conducive to the accumulation of nutrients. Therefore, the temperature is controlled at 25~30 °C, and the night temperature is controlled at 15 °C.
3. Excessive nutrient growth. From the young fruit stage to the fruit harvest period, the supply of nitrogen fertilizer is excessive, and the formation of chlorophyll is more, which easily inhibits the formation of lycopene, and yellow or green patches appear on the surface of the fruit. This phenomenon is mainly due to the excessive application of nitrogen fertilizer to the base fertilizer, and the lack of phosphorus and potassium fertilizers, resulting in tomato plants. If the combination of Jinbao microbial fertilizer can be used in the base fertilizer, it can activate the poorly soluble phosphorus and potassium elements in the soil, provide balanced nutrients to the tomatoes, promote the accumulation of nutrients, and facilitate the formation of lycopene. Moreover, it can effectively prevent premature aging of plants. In addition, if the plant is prematurely degraded, the tomato fruiting period to the fruit harvesting period, the nutrient supply is insufficient, which is also not conducive to the formation of lycopene.
4. Lack of potassium and boron. Potassium is a quality element that determines the coloration of tomato fruits and the transport of carbohydrates and amino acids. Boron is the inducing element, which determines the fruit setting rate of tomatoes. It also promotes the formation of carbohydrates and amino acids, and reduces the cluster necrosis at the top growth point and the necrosis of stems. During the fruit expansion period, the Golden Baby sweetener is sprayed to supplement the trace elements such as potassium, calcium and boron, which improves the photosynthesis conversion rate and facilitates the accumulation of sugar.
5, scientific fill light. In the deep winter, the grasshopper should be uncovered as early as possible to extend the time of the tomato. After the snow in the snowy weather, the grasshoppers should be uncovered under the premise of ensuring that the temperature in the shed does not decrease, so that the vegetables are more visible. In order to ensure that the vegetables have sufficient light, reflective curtains can be added to the shed wall. In addition, the dust on the shed film should be wiped in time, and the photosynthetic nutrient film fertilizer should be sprayed to help the plant absorb a large amount of light fertilizer, light energy, light, compatible with conventional fertilizers and nutrients to supply plant growth and development to the limit. When the tomato is near mature, the leaves around the fruit and the lower part can be removed, and the diseased leaves should be removed in time to promote the normal coloration of the fruit.
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