What to do when tomato fruit set is low? Here's how to promote fruit set
In recent years, blossom-end rot has occurred in tomato production in various regions. This condition manifests during the fruit swelling stage: because the blossom end of the fruit points downward, the part that cannot see the sun turns brown, and some become dry and shriveled while others rot, greatly affecting yield and quality. The following points should be noted in fertilization: 1. Pay attention to fertilizing the seedling bed...
Preserving flowers and fruit means ensuring the plant's ability to set fruit continuously and the marketability of the fruit. Do not treat the first flower of each truss. The first flower of each truss generally opens 1~2 days earlier than the others; after treating this flower, nutrients tend to be concentrated in supplying that fruit and the nutrient supply to the other flowers and fruits behind the first flower is reduced, which easily leads to fruits of uneven size. At the same time, the fruit formed from the first flower often becomes misshapen because of ample nutrient supply, so the first flower of each truss can be left untreated. Treat more flowers. After the first flower of each truss opens, 3~4 more flowers will grow together. To learn how to prevent hollow tomatoes, you should treat the flowers before they open. 2~3 days after the first treatment of each truss, 4~5 more flowers will appear; treat them as well. It is advisable to treat 8 flowers per truss, which helps with selecting and keeping premium fruit later.
Keep fewer fruits, keep premium fruits. Once the young fruits have set, select and keep 4~6 fruits that are uniform in size, similar in shape, and free of pests and diseases according to need, then remove the remaining fruits.
Preserve the fruit. After tomatoes enter the fruiting stage, promptly spray fungicides such as chlorothalonil and zhongshengmycin at regular intervals to prevent early blight, late blight, bacterial canker, and various other diseases that harm the fruit.