Tomatoes are very popular fruits and vegetables, rich in nutrients, sweet and sour taste, and the market demand is large. Has a good prospect of planting. Under normal circumstances, the planting season is in the spring, but some growers choose to plant two oysters in order to increase their income. How can I get high yields when planting tomatoes in autumn? The following is a small series to explain the planting method in detail.
During the planting of autumn glutinous rice, it is the end of high temperature. At this time, the temperature difference between day and night is large, and the relative humidity is also large. It is also a period when many pests and diseases are suitable. Its field management is very difficult. Therefore, in order to ensure the high yield and quality of autumn 茬 tomatoes, comprehensive management is the basic condition for obtaining income.
    Integrated pest and disease prevention
At present, the multiple cropping rate of vegetable greenhouses is relatively high, and the time of shelter is short. Some soil-borne diseases are even “squattingâ€. Therefore, before transplanting autumn oak tomatoes, the soil must be disinfected, which can reduce and reduce the occurrence of disease and root rot to a certain extent.
First of all, when applying the base fertilizer, we should use the fully decomposed organic fertilizer, which can reduce the chance of breeding underground pests; it also avoids the danger of burning roots and sprouting during fermentation. When applying the base fertilizer, it is possible to use a mixture of chemicals to prevent some soil-borne diseases; or to use a high-temperature shack to achieve this effect.
When the temperature is high, the front crops should be cleaned up, the humidity in the shed should be guaranteed, and the drip irrigation equipment should be taken out of the shed to avoid high temperature damage; try to ensure the integrity of the shed film is not damaged, and improve the quality of the shack.
When transplanting and planting, it can spray the drugs such as carbendazim and carbendazim in the acupoints, which can effectively prevent epidemics, bacterial wilt, various soil-borne diseases, and promote root development and flower bud differentiation.
The temperature in autumn is still relatively high, and the shade net can be covered at noon time to prevent high temperature. The sunshade net should not be covered all day long, so as to avoid the lack of light and the tomato plants appear lengthy. In order to ensure the quality of the tomato fruit, the vents can be covered with insect-proof nets to prevent the damage of mites and white meal, and the yellow stalks can be hanged indoors to trap winged pests, thus reducing the number and quantity of pesticides used.
Although the rainfall in autumn is reduced, there may be long-lasting rainy days. It is necessary to do the drainage work in the field and avoid water accumulation and disaster relief in the shed. After entering September, the temperature at night is low, and it is necessary to properly cover the warming warmth to promote the normal growth of tomatoes.
    Common pest control
    Tomato bacterial wilt
Bacterial wilt is a common and major disease of autumn oak, and the bacterial wilt is fast-growing and spreads rapidly. If it is not timely prevented, the yield reduction will be severe or even severe.
Bacterial wilt usually occurs from the fruit-bearing period, and the stems and leaves are wilting at noon. The head is pulled back and returned to normal in the morning and evening. After repeated days, the whole plant is dead. In the early stage of the disease, the roots of agricultural streptomycin can be used for irrigation, once a week, usually about 3 times can have a good effect.
    Tomato virus disease
There are many types of tomato virus diseases. The common and common disease is tomato mosaic virus disease. In places where tomatoes are almost planted, this disease will occur.
After infection with the virus, the leaves are yellow-green, the leaves are obviously uneven, deformed, twisted, and curled, often causing falling flowers and fruit, causing heavy losses to the vegetable farmers. Even sitting and low-lying areas are more likely to be ill and severe. In the early stage of the disease, virus A and virus spirit can be used to spray the stems and leaves, once a week, usually 2-3 times.
In addition, it is necessary to timely control the mites and whiteflies in the shed, and cut off the insect vectors that transmit the virus in time. It can be covered with insect nets in the vents, wormworm boards in the field, and chemical control.
The large climate change in autumn will seriously affect the yield and quality of tomatoes, so you must strengthen field management when planting, and do a good job in pest control. The above is the detailed autumn tomato planting management points for everyone to learn from.
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