Autumn production management of vegetables

In autumn, greenhouse vegetables are mainly grown in melons and solanaceous varieties of thermophilic vegetables. These varieties generally have flowering results and suitable growth temperature. They are 25-30°C during the day and 20-25°C during the night. Therefore, according to the change of helium, we must do cover film insulation and film ventilation cooling to regulate the temperature and humidity in the shed to meet the growth and development needs of vegetables.

At present, the temperature is still high. The soil in the greenhouse is relatively dry. It is necessary to intensify the application of fertilizer water to meet the fruit growth and development needs. At the same time, we must strengthen the control of pests. This fall, Bemisia tabaci poses a serious threat to tomatoes, cucumbers, and cruciferous crops. It should be highly valued everywhere. It can be used with 1.8% or even 5% sharpener. Special 1500 times plus 10% imidacloprid 1000 times, or 3% ave acetamiprid 1500 times, spray on the back of the blade with a hand sprayer, with a sufficient amount of water, spray evenly, 7-10 days once, various agents Use alternate rotation. At the same time, the weeds around the farmland should also be included in the prevention and control targets. In the winter, the pastoral area should be cleaned up to eliminate the remaining amount in the winter, reduce its base number, and reduce the occurrence base in the coming year.

After the weather turns cold, the humidity in the shed increases, and it is easy to cause damages such as gray mold and epidemics. In addition to good ventilation management, it is necessary to select the appropriate control of pesticides early. In the autumn, vegetables such as cabbage, broccoli, Chinese cabbage, radish, carrots, etc., need to be re-fertilized after entering the ball stage or the root swelling stage. At the same time, prevention and control of pests such as Plutella xylostella, Pieris rapae, and vegetable worms should be strengthened.

- Seedlings for sowing fruit vegetables and open field vegetables in spring greenhouses.

At present, it is a season for sowing and planting of eggplant vegetables in spring greenhouses. To adapt to local conditions, according to market demand, select varieties with good precocity, adaptability and disease resistance, high quality, high yield, and marketability. Seed disinfection and germination treatment should be conducted before sowing; the cultivation soil should be prepared by using paddy field soil or garden soil not planted with solanaceous crops, and seed bed disinfection; plastic greenhouse facilities and nutrient pots or nutrition block nursery.

During the nursery of mustard and mustard, it is recommended to use insect-proof nets to cover, in order to prevent aphids from transmitting virus diseases. The sowing date of Spring Cabbage is strict. If it is planted too early, if the larger seedlings pass through the winter, they can pass through the vernalization stage as early as possible. Pre-existing convulsions will occur. If sowing is too late, the overwintering seedlings are too small, and the harvesting period is delayed, yield and economic efficiency are lower. The suitable sowing time for spring cabbage in our province is in the middle or late October. According to the local temperature, localities should choose to sow the spring, Chunfeng and other varieties at the right time.

- WInter solanine fruit vegetables planted in time.

The wintering greenhouse sheds fruit and vegetables vegetable planting period from late October to mid-November. If late-season sauerkraut rotation cultivation is adopted, after the late rice is harvested, it is necessary to step up the building of a greenhouse, plough the soil, and apply sufficient basal fertilizer to ensure timely planting. When planting, it is necessary to choose strong seedlings with medicinal soil to plant colonization, minimize root damage, and timely pour some root fertilizer, which will help promote early-onset seedlings.

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