Tomato progeria is mainly characterized by fine stalks, thin growing points, fewer lateral branches, small and thin leaves, yellowish color, sometimes with knob-like protrusions on the leaves, which are prone to cracking, empty and stale fruit, poor fruit coloration, and fruit. Small, reduced plant resistance. The main causes of premature morbidity are caused by unfavorable factors such as frequent planting, unreasonable fertilization, improper nursery measures, and phytotoxicity.
Prevention:
1. A reasonable crop rotation should be carried out for more than 3 years with non-soy fruit vegetables. Before sowing, the soil should be deep-rooted, and disinfectant should be sprayed with disinfectant and 800 times of new high-fat membrane.
2, nurturing strong seedlings, reasonable control of seedlings long, can increase the area of ​​nursery beds, appropriate control of watering, increase the spacing of the seedlings and other measures. And in the growing period of the plant timely spray Huan Wang No. 3 inhibition of the main tip prosperous and promote flower bud differentiation. The ingenious use of sugar in tomato colonization not only facilitates the production of adventitious roots in tomato, but also promotes easing of seedlings, prevents premature aging of tomato, and can alter the quality of tomato and enhance tomato resistance.
3. Adding organic fertilizers and biological bacterial fertilizers: Under the premise of the nitrogen, phosphorus, and potassium fertilizers needed for the growing period of tomatoes, it is necessary to increase the application of decomposed organic fertilizers, biological bacterial fertilizers, and micro-fertilizers, and to increase the use of new high-fat membranes. Fertilizer active ingredient utilization, while spraying fruit before flowering Zhuang Ti Ling improve pollen quality, enhance the rate of fruit cycle, improve plant resistance to decay.
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