1 Interplanting time is too early: Interplanting time is too early, the tomato on the upper eyelid shading effect on the lower tomato, coupled with weak light in the winter, will lead to lower photosynthesis ability of the tomato, carbohydrate accumulation, so that the stem Thin, strong, is not conducive to the formation of strong seedlings.
2 sets of seedlings before planting to fertilize: a lot of vegetables and maps to save trouble, do not adjust the fertilizer to put the seedlings directly under the sorghum planted in the upper two tomatoes. This is very detrimental to seedlings. Should be on the outside of the tomato planting line on the top, close to the operation line, open a small ditch depth of 20 cm, a width of about 25 cm, and then ditch fish protein fermented soybean meal, apply 130 kg per acre, and then use the operating line of soil, Covering the soil into a ridge, ridge height of about 15 cm, and finally the tomato planted on the ridge.
3 Disease prevention and control should be timely: During production, vegetable farmers are often sparse in the prevention and control of late tomato diseases, resulting in not only the incidence of tomato onset, but also the incidence of tomato disease on the lower jaw, such as gray mold, leaf mold and so on. Therefore, it is necessary to prevent and treat the tomato disease in time, and at the same time, it must also prevent the tomato from being infected.
4 To cover the film as soon as possible:
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