What are the precautions for growing tomatoes in winter?

Precautions for growing tomatoes in winter

First, pay attention not to interplant too early. The author has seen in some greenhouse vegetable planting villages in Yuncheng that for growers who have interplanted high-and-low stubble tomatoes, the upper-stubble tomato plants are all over 1.8 m tall. Although the leaves in the middle and lower parts of the plants have basically been removed, there are still two clusters of fruit unpicked on the upper part, and it will take about 25 days to pull up the entire greenhouse. As a result, the upper-stubble tomatoes shade the lower-stubble tomatoes. In addition, summer light is weak and the days are short, so the lower-stubble tomatoes have poor photosynthetic capacity and accumulate little carbohydrate, showing thin and weak stems and excessive vegetative growth, which is not conducive to strong seedlings and strong plants.

Second, pay attention to soil preparation and fertilization before interplanting. Many vegetable growers, to save trouble, do not carry out soil preparation and fertilization and directly transplant the lower-stubble tomato seedlings between two upper-stubble tomato plants. The author believes that doing so is very unfavorable for seedling recovery and strong seedlings. Without soil preparation and fertilization, the soil becomes compacted and fertility declines, affecting the root development of the lower-stubble tomatoes and their nutritional needs throughout the entire growth period. Production recommendation: first, on the outer side of the upper-stubble tomato rows, near the operation row, use an iron hoe to open a small ditch about 20 cm deep and about 25 cm wide, then apply fermented soybean meal in the ditch at about 130 kg per mu, then use soil from the operation row to cover the soil and form ridges about 15 cm high, and finally it is best to plant the tomatoes on the ridges.

Third, after interplanting, pay special attention to preventing disease outbreaks. In production, vegetable growers often neglect the management of early-stage tomato diseases, which not only causes severe disease in the upper-stubble vegetables but also infects the interplanted lower-stubble tomatoes, such as gray mold and leaf mold. Therefore, it is necessary to promptly control diseases in the upper-stubble tomatoes, spray Yifuyuan planting bacterial liquid onto the soil, supplement beneficial bacteria to improve the soil, inhibit pathogenic and miscellaneous bacteria to control continuous cropping, and at the same time prevent disease in the lower-stubble tomatoes.

Fourth, pay attention to covering with plastic film early.

In deep winter, after interplanting the lower-stubble tomatoes, they are in conditions of high temperature and weak light, with poor growth vigor. Spray planting bacterial liquid regularly to strengthen photosynthesis and promote growth. Cover with plastic film early to increase soil temperature, maintain soil moisture, and help seedling recovery.

Well, have you learned it?

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This article is original by Sina Kandian (Weibo nickname), hereby declared.