How to reduce residual fruits in cultivated Tomato

In greenhouse tomato cultivation, it is very important to reduce defective fruit and improve quality, which is directly related to the level of economic benefits. Take the following management measures, can make tomato yield high, quality excellent, neat size, less defective fruit.

I. Loss of "pawn" to protect "car"

Remove the first and second flowers or the first and second fruits that bloom earliest on the tomato panicle to reduce nutrient consumption and accumulate sufficient nutrients to supply other flowers and fruits above. In this way, the tomato fruits can be uniform in size, close in maturity and less deformed fruits.

Second, more flowers, less fruit

For each flower ear on the flowers to open more points, generally 4~5 high-quality fruit per ear, must point 8~9 flowers. When the diameter of young fruit grows to 1 cm, 4~5 fruits with similar appearance and size are selected, and larger fruits, abnormal fruits, defective fruits and fruits with diseases and insect pests are removed. When ripe, the fruit is uniform in size and appearance.

III. Promoting coloring before ripening

When tomato fruit is ripe, 40% ethephon 100~200 times solution can be used to touch the branch stem (5~8 mm long) above the fruit stalk with a brush to promote fruit ripening and coloring earlier and increase yield. However, it should be noted that the flower point can not be placed at the "joint" position (fruit stem and branch joint), otherwise it will cause serious fruit drop phenomenon; do not spray ethephon on the fruit, otherwise it will not only make the plant aging ahead of time, but also affect the commodity of the fruit, and the fruit after ripening is not tolerant to transportation; the concentration of ethephon application cannot be too high, and the time cannot be too early, otherwise it will make the fruit premature, resulting in reduced yield.

IV. Topdressing potassium fertilizer

When tomato is short of potassium, the coloring is poor, the muscle rot is easy to occur and the yield is low. Therefore, after flowering, when the fruit diameter exceeds 3 cm and begins to enter the expansion period, 10~20 kg of potassium sulfate is applied to each mu of watering to increase the weight of the fruit, reduce the hollow fruit, and make it taste good and bright.

Zhang Yun, Agricultural Technology Center, Xinji City