Interplanting time should be prematurely interplanting too early, tomato on the upper eyelid sun shading role, coupled with weak light in the winter, will lead to lower tomato photosynthesis capacity weakened, carbohydrate accumulation decreases, so that the stalk is weak , prosperous, is not conducive to the formation of strong seedlings.
Before planting, it is necessary to fertilize a lot of vegetable plots to save time. If the soil is not fertilized, it will be planted directly between the two tomatoes in the upper pot. This is very detrimental to seedlings. It should be on the outside of the tomato planting line on the top, near the operation line, and open a small ditch with a depth of about 20 cm and a width of about 25 cm. Then the ditch should be used to ferment the soybean meal with a large amount of protein and apply about 130 kilograms per mu, and then use the soil in the operation line. Covering the soil into a ridge, ridge height of about 15 cm, and finally the tomato planted on the ridge.
In the timely production of disease prevention and control, vegetable farmers often neglect the prevention and treatment of tomato disease at the later stage. As a result, not only the occurrence of tomato disease in the upper part of the crop is severe, but also the tomato of the interplanting sorghum will be infected, such as gray mold and leaf mold. 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.
To cover the film as soon as possible, the winter protection site is in a low-temperature and low-light environment, the tomato growth potential of the lower jaw is poor, and it is necessary to cover the plastic film as soon as possible, increase the temperature, and maintain the soil moisture, so as to promote the slow seedling growth.
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