Measures to prevent tomato face

Measures to prevent tomato face

Tomato “flower face” not only does not look beautiful, but also affects quality, yield and benefits. The reasons for the formation of tomato "flower face" and its prevention methods are as follows.

1. The prevention of tomato "flower face" through variety selection is related to the variety first. Different varieties have different resistances. When cultivated, try to choose the species with low flower face rate.

2. Prevention by reasonable fertilization can easily occur under the conditions of high nitrogen, phosphorus and potassium deficiency, and boron deficiency. First, if the vegetative growth is excessive, the chlorophyll content increases, which inhibits the formation of lycopene and causes a large number of yellow spots on the tomato fruit surface. Second, the lack of boron and potassium causes poor nutrient transport, and the fruit is necrotic and brown due to lack of nutrients. Thirdly, during the late growth period of tomato, the plants exhibited premature senescence, which could easily result in the mature fruits. In the process of reddening, due to insufficient nutrition supply, the formation of lycopene was small, and large patches of yellow spots and green stripe appeared. It is recommended that vegetable growers use organic fertilizer as the main fertilizer, and various nutrients should be properly matched.

3. Prevention of relevant data through temperature regulation showed that the tomato fruit surface temperature of more than 32 °C, is not conducive to the synthesis of lycopene in the fruit, resulting in residual green or brown peel. Below 8°C, the formation of lycopene is disturbed and destroyed, and later it is no longer turned red at the appropriate temperature. In addition, the night temperature is too high, respiratory intensity, is not conducive to the accumulation of nutrients, manifested as poor fruit development. Therefore, pay attention to the appropriate temperature in the development of tomato fruit, to control the temperature of the pupa at 25 °C -30 °C, night temperature at 13 °C -17 °C.

4. Prevent water and light from affecting the photosynthetic and transpiration of tomatoes through light moisture prevention. If the light is too strong or too weak, it will affect the color change. When the soil is dry and the plant evapotranspiration is large, the roots supply nutrients and lack of water, and the fruit color will be poor. Farmers can improve the ventilation and light transmission through pruning. However, at high temperatures, do not let the sun shine directly on the fruit. Pay attention to keep a leaf above the fruit. Watering to see dry see wet degree, to avoid roots, root damage.

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