Various measures to prevent tomato from becoming "flower face"

The author believes that the main reason is that the tomato has “flower face” due to the following reasons. It is recommended that the farmers should take preventive measures.

First, tomato "flower face" is related to breed first. Different varieties have different resistances, for example, Dahong 1420 face ratio is lower than 73-45.

Second, it relates to nutrition supply. In the case of high nitrogen, phosphorus and potassium deficiency, boron deficiency can easily occur. First, if the nutrition grows excessively, the content of chlorophyll increases, which inhibits the formation of lycopene, which causes a large number of maculas on the fruit surface of the tomato. Second, the lack of boron and potassium causes the nutrient delivery to be poor, and the fruit is necrotic due to lack of nutrition. Turn brown. 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 the base fertilizer for vegetable growers be dominated by organic fertilizers.

Third, it is related to temperature. Relevant data show that the tomato fruit surface temperature exceeds 32 °C, is not conducive to the synthesis of lycopene in the fruit, resulting in residual green or brown skin. Below 8°C, the formation of lycopene is disturbed and destroyed, and it is no longer turning red at the appropriate temperature afterwards. In addition, the night temperature is too high, respiratory intensity, is not conducive to the accumulation of nutrients, manifested as poor fruit development. Therefore, in the fruit development period of tomato, the temperature of pupa should be controlled at 25-30 °C and the night temperature should be 13-17 °C.

Fourth, it is related to light and moisture. Light and moisture affect tomato photosynthesis and transpiration. When the light is too strong or too weak, it affects the color change. However, when the soil is dry and the evapotranspiration is large, the roots supply nutrients and water, and the fruit turns badly. Farmers can improve the ventilation and light transmission through pruning. However, at high temperatures, do not let the sun shine directly on the fruit. Take care to keep a leaf above the fruit. Watering to see dry see wet degree, to avoid roots, root damage.