Key points of high-yield cultivation techniques for cucumber in early spring greenhouse

In recent years, with the promotion of plastic large grid technology, the cultivation of cucumber in early spring by using greenhouses has become the main form of cucumber cultivation: cultivation. The use of greenhouse cultivation of cucumbers can be planted in advance to raise the morning market and improve the economic benefits of vegetable farmers. The main cultivation techniques are as follows:

First, the selection: mainly suitable for local cultivation of hybrid generation cucumber varieties, the varieties are required to withstand low temperature, strong disease resistance, wide adaptability, early maturity, high yield, high quality.

Second, seedling: select full seeds, first soak for about half an hour with warm water of about 40 degrees, then use 50% carbendazim and 50% methyl thiophanate each 10 ml, add water 2 kg, soak seeds for 20 minutes, remove and rinse with water After drying, re-broadcast. The amount of seed used is 0.1 kg, and the sowing time is from mid-to-late January to mid-February. The plots that have not been planted with melon crops in recent years are selected as seedbeds, the bed soil is leveled, the bottom water is poured, and the seeds are planted 24 hours later. Seeds of 0.2 kg per square meter of bed surface, covering soil thickness of 2 cm. In the early stage, the soil is kept moist. Generally, a small amount of water is sprayed once a week, but it cannot be too wet. In the later stage, the water is controlled during the refining. When 2 to 3 true leaves are sprayed with 150-300 mg/kg ethephon, the female flower differentiation is promoted and the internodes are shortened.

3. Land preparation: Select the loose and fertile plots of the melon crops that have not been planted for 2 years. 5,000 kg of soil and fertilizer; 100 kg of compound fertilizer and 100 kg of cake fertilizer. About a week before transplanting, the whole soil was used for hoeing, the width of the raft was 1 m, the depth of the ditch was 20 cm, and the width was 50 cm.

Fourth, colonization: in the middle of March, choose to plant in the sunny afternoon. 2 lines per seed, 2 holes per hole, with a hole distance of 40 cm. 4000 to 5000 plants per mu.

V. Management:

1. Fertilizer management

Cucumber grows fast, and the supply of fertilizer and water should be timely. The fertilization method adopts the principle of “thin fertilization” and “small meals”. Generally, the fertilizer is harvested twice. Keep the soil moist throughout the growing season. After entering the melon period, according to the soil water content, water is poured every 1 to 2 weeks, and water is poured once.

2, temperature control

First closed the shed for about 7 days to promote the survival of the seedlings. Keep the shed temperature for a long time, 20 to 25 degrees during the day and 15 to 18 degrees at night. On sunny days, due to the rising temperature, the membrane should be ventilated and ventilated. In the rainy days, the shed will be kept warm. By the end of April, the temperature will be stable at 15 degrees or more, and the membrane can be removed. Strengthen ventilation and promote seedlings. When the vine grows 30 cm, it starts to truss.

3, the use of hormones

When cucumbers bloom in greenhouses, due to low temperature and low insect activity, they need to use preserved fruit or 920 spray to preserve fruit, and artificial pollination can also be used to improve the fruit setting rate in the early stage.

4, pest control

There are mainly downy mildew, blight and powdery mildew. Spray the Bordeaux mixture every 2 weeks from the seedling stage, and irrigate the agent once every 7 to 10 days. Insect pests, such as aphids; can be controlled with high-efficiency and low-toxic pesticides.

For the wonderful pictures and popular comments on the high-yield cultivation techniques of greenhouse cucumbers, you may be interested in the following recommended contents. Welcome to read.

Facial Care

Facial Care,Face Skin Care,Foaming Facial Cleanser,Cerave Skin Cleanser

Guangzhou Lingxue Cosmetics Co., Ltd , https://www.gzlxgj188.com