Tomatoes are prone to leggy after planting, manifested as thick plant stalks, large and hypertrophic leaves, thin and weak flower buds and flowers, inconclusive results, or fine stalks, prominent stem segments, thin and pale leaves, flower buds, thin flowers, and falling flowers. Falling fruit.
In this case, appropriate amount of pruning, leafing, and scaffolding should be carried out in a timely manner so that the ventilation and ventilation are good, and the tomato seedlings and other growth regulators can be used to promote fruit settling and inhibit excessive vegetative growth. The liquid concentration should be controlled at 20 to 50 mg/kg. When the temperature is low, it is appropriately high. On the contrary, it should be appropriately reduced. Otherwise, the phenomenon of malformation will occur. During the processing period, when 3 to 4 flowers in each inflorescence are in full bloom, each flower can be processed once, usually 4 to 5 days. Once treatment, you can use a brush to spot paint, or use a small portable sprayer on the flower spray to spray wet, and try to avoid splashing the liquid on the leaves, otherwise the leaves will appear petiole, thickening leaves, first down The phenomenon of curling up again.
In view of the phenomenon of tomato, whether it is cultivated in early spring or post-autumn cultivation, plastic film mulching cultivation or greenhouses promote cultivation, attention should be paid to the following points when planting:
To control the age of seedlings and to control the seedling age in a timely manner, for example, the seedling age of general early-maturing tomato varieties should be about 80 days, and the medium-late-maturing varieties should be 90 to 100 days; the autumn tomato seedlings should be about 25 days.
Early preparation for planting Before and after the planting, do a good job of site preparation, basal fertilization, covering the top film and skirt of the greenhouse, drainage around the shed and so on.
The use of deep-groove sorghum to control the amount of nitrogen fertilizer should control the fertilizer and water.
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