Tomato initial flowering management technology
First, temperature management
The optimum temperature for tomato flowering period is 24-26 °C during the day and 12-14 °C at night. The flowering stage of tomato is sensitive to temperature reaction, especially from 5 days before flowering to 3 days after flowering. Below 12 °C and above 30 °C are not conducive to flowering and pollination and fertilization.
Second, the initial flowering period
The first large flower on the first flower of the tomato will affect other flower fruit, and it should be destroyed in time. Before the first ear can sit, it is not too early to fight, and it will reduce the growth of the plant in the early stage and affect the rooting. Generally, when the cockroach grows to about 10-12 cm, it is knocked out. After the first ear is sitting, the upper part of the tomato should be destroyed in time. Be careful to reduce the wound as much as possible when crossing the fork. Cooperate with the whole branch and do a good job of hanging the vine.
Third, the flower notes
1. Regardless of which type of scented medicinal agent is used, different concentrations should be used according to different temperatures, and should be prepared in strict accordance with the instructions for spraying the medicinal preparation;
2. Avoid repeating flowers;
3, 蘸 flowers are best carried out in the morning of flowering;
4, early spring greenhouse temperature is low, humidity is conducive to the occurrence of gray mold, the bacteria easily invade through the wound or weak residual flowers, the flowering period is the peak of infection. Therefore, the combination of silk flower and gray mold should be combined with 50% of the sudanin suspension or 40% of the Sage suspension, and 1 ml of the drug per kg of water.
Fourth, early flowering pest control
The main pests in this period are whitefly and leaf miner. The control of whitefly, imidacloprid plus buprofezin, and the prevention and control of leaf miner can be sprayed with a chemical such as a salt or a patch.
After the tomato enters the initial flowering stage, it also reaches the high incidence of disease. Disease prevention and control should follow the principle of “prevention first, prevention and control combinationâ€, do a good job in cultivation management, and regularly spray protective fungicides before the occurrence of diseases, and prevent them in advance. Once a disease has occurred, it will be sprayed in a targeted manner in the early stages of the disease.
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