Premature prevention of tomato disease
First, increase organic fertilizer. Tomato in the seedling stage, flowering stage, maturity stage and the fruit after the first harvest must be top-dressing, quick-acting fertilizer and organic fertilizer (decay), cake fertilizer, human fecal urine alternately used, nitrogen, phosphorus, potassium and trace The combined application of elements (boron, calcium, zinc, and iron) has a good effect on restoring the vitality of the plants and improving the yield of the second batch of fruits and preventing premature aging.
Second, reasonable regulation of water. Tomato watering should be done in the morning on sunny weather, ensure that there is 2-3 days of sunny days after watering, warming and then ventilation after watering, avoid premature aging caused by excessively low temperature and no watering on cloudy days and afternoons. . Also note that the amount of water should not be too large for each time to prevent rooting. After each watering, pay attention to uncovering loose soil and inject new high-fat membrane to prevent infection.
Third, pruning. The time for snoring is not too early or too late. Generally, it is advisable to snoring for the first time when the side branches grow to 7-10 cm. After that, they should be removed. After the first fruit is sitting on the size of walnuts, the old leaves of the lower part should be removed, and the old leaves and diseased leaves should be removed in time. This will not only reduce the nutrient consumption of the plants, but also effectively control the spread and spread of the disease. It is conducive to ventilation and light in the field, promotes robust growth of plants, and prevents premature aging of plants. For plants that grow weakly, they need not to cross directly to promote the growth of the vegetative growth of the plants, inhibit the growth of the main shoots, promote the differentiation of flowers and buds, increase flowering, improve the quality of pollen fertilization, and increase flowering and fruit setting. Prevent fruit drop and promote development. Fourth, strengthen pest control. Prevent pests and diseases mainly. The current diseases mainly include early blight, late blight and leaf mold, etc. It is necessary to pay attention to spraying a new high-fat film to form a layer of polymer film, and do a good job of prevention.
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