Tips for planting tomatoes in autumn

What should we pay attention to when planting tomatoes in autumn? Let's talk about it below:

1. Before planting

Before planting autumn tomatoes, the greenhouse should be disinfected and basal fertilizer should be applied reasonably. After the previous crop is pulled out, the field should be cleaned in time and the greenhouse should be disinfected. If time permits, the greenhouse can be disinfected by methods such as high temperature stuffy greenhouse and methyl bromide fumigation greenhouse; if time is tight, soil disinfection can be combined with land preparation and fertilization. For example, 6 kg of dichlorodiphenyltrichloroethane per mu can be evenly applied into the soil tillage layer to effectively prevent the occurrence of Phytophthora root rot. The basal fertilizer must be fully decomposed. If the chicken manure is not fully decomposed due to time constraints, the active bacteria rapid decomposition method can be used to evenly spray the organic fertilizer fermentation bacteria on the chicken manure after mixing with water. This can not only fully decompose the chicken manure in a short time, but also deodorize it to a certain extent.

2. Planting

The planting period of autumn tomatoes is in the hot and rainy season, and soil-borne diseases such as stem base rot, Phytophthora root rot, and bacterial wilt are more serious. Therefore, vegetable farmers are warned to focus on prevention and combine prevention and treatment.

You can apply Xiangnong No. 4, carbendazim and other pesticides in holes for prevention during planting. In greenhouses with root-knot nematodes, you can apply Fuqiduo and other pesticides in holes for prevention.

3. After planting

After planting autumn tomatoes, you can use the method of covering with two nets and one film to prevent high temperature, insect pests and rain. The shade net should be used reasonably and should not be covered for too long, otherwise the tomato plants will grow too long due to insufficient light. The time to use the shade net: from 10 am to 3 pm on a sunny day. In the hot season, ventilation and cooling are important links, but if insect nets are used on all the vents on the "front face" and the top vents of the greenhouse, it will be detrimental to ventilation and cooling. Therefore, in the hot season, insect nets are only suitable for use on the vents on the "front face" of the greenhouse.

Since insect nets cannot be used for the top vents, and whiteflies, leaf miners, beet armyworms, and armyworms are serious at this time, it is more difficult to control them. It is recommended to use a combination of physical and chemical control methods. In addition, it is also necessary to prevent rainwater from filling the greenhouse and causing autumn tomatoes to rot and die. If rainwater fills the greenhouse, it is necessary to irrigate it with well water in time, that is, waterlogging the garden, to reduce the harm caused by rainwater filling the greenhouse, and to hoe it in time to enhance soil permeability and promote root growth.