At present, many tomatoes have been sitting in the autumn fruit of 6-7 fruit, in order to promote fruit development, farmers have taken the initiative to take the initiative. So, after taking the lead in tomatoes, should you pay attention to management? The first is to increase the brightness and promote fruit development. In the event of frost and windy weather, cover floating membranes on the basis of grass cover. Usually about 7:00 in the morning, when the sun comes out, it is necessary to pull the drafting gong. Around 4 pm, it is necessary to close the air inlet insulation. Before 5 o'clock, we must cover the rake. At the same time, it is suggested that before the cold wave struck, the farmers would put a light curtain on the back wall of the greenhouse to enhance the lighting in the shed. In general, after topping the head of the tomato, the lower fruit is in the period of color change and enlargement. Through the heat preservation, the daytime temperature is kept at 28-30°C, the night temperature is 15-17°C, which is conducive to the transport of photosynthetic products, and the tomatoes are colored. Ye Hao. The second is adequate supply of fertilizer and water to prevent premature aging of plants. As the temperature in the shed declines, it will have a greater impact on the absorption and absorption of tomato roots. However, after the topping of tomatoes, the nutrients needed for fruit growth and development increase. To prevent premature aging of the plants, it is recommended that the farmers increase the supply of fertilizer and water. Should choose to conserve functional roots of fertilizer and fully absorbed, full use of water-soluble fertilizer alternately. In order to prevent premature yellowing and aging of the leaves of the plants, it is recommended to spray the boron-magnesium-zinc-leaf fertilizer and love to receive more phytochemical nutrients to alleviate the tomato. The third is to take various measures to prevent the occurrence of diseases. The emphasis is on the prevention of gray mold. After picking up the head, in addition to picking up the remaining flowers, pharmaceutical prevention is indispensable. You can use the 100-speed tobacco smoke booth at night, and you can also use fogging, dusting, and other methods to control chemicals. The prevention of leaf mold and bacterial spot disease cannot be ignored either. The first choice for preventing and controlling leaf mold is multi-antimycin, and the highest is DES, streptomycin, and tetrazole.
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