Can peanuts from northern Jiangsu be planted in Chaoyang, Liaoning?

Peanuts in northern Jiangsu can be planted in Chaoyang, Liaoning, and can be cultivated in greenhouses.

Analysis and explanation:

Peanut can be planted when the ground temperature of 5cm soil layer is stable at 65438 02℃ in spring.

Peanuts should grow in sandy land with warm climate and moderate rainfall for a long time.

Northern Jiangsu has a temperate monsoon climate.

Chaoyang lives in the northern temperate continental monsoon climate zone. Although the southeast is affected by the warm and humid ocean, the dry and cold air in the northern part of the Mongolian Plateau often invades, forming a semi-dry and semi-wet easy-to-dry area with four distinct seasons, the same season of rain and heat, abundant sunshine, large daily temperature difference and little precipitation.

The annual average temperature is 5.4℃ ~ 8.7℃; The annual average sunshine hours are 2850 ~ 2950 hours; Annual precipitation is 450 ~ 580mm; The frost-free period is 120 ~ 155 days.

It is windy and prone to drought in spring and autumn, and the wind force is generally 2 ~ 3. Northwest wind prevails in winter, and the wind is strong.

Therefore, Chaoyang area is suitable for cultivating peanuts in greenhouse, which is convenient for temperature control of peanut growth.

Cultivation techniques:

Peanut likes drought and is afraid of waterlogging, and cannot tolerate continuous cropping. Fields should be selected in places with high and dry terrain, loose soil and medium and high fertility to avoid repeated cropping.

In addition, deep ditches should be dug around the shed to prevent rainwater from flowing into the shed.

Every 667m before ploughing? 2. Apply compound fertilizer 15 kg, plant ash 20 kg, and urea 4 kg on 15 days after emergence to promote nodule development.

Generally, the sowing time is in the middle of February. When the surface soil temperature in the greenhouse is stable above 10℃, sowing can be carried out.

Very few low temperatures in late spring will affect premature sowing, which will slow down the growth of peanut seedlings or cause freezing injury.

Sowing is too late to achieve the goal of early maturity and high efficiency.

Reasonable secret value:

Peanut in greenhouse has short growth period, fresh pods and small individuals. Therefore, close planting should be advocated, with at least1.8000 holes per 667m2, with 2 seeds per hole. ?

Double mulch should be set before sowing. In order to save costs, bamboo greenhouses (4m or 6m wide) are widely used at present. Generally, directly drill holes for sowing, then cover with plastic film and press the soil around.

After sowing 10 ~ 15 days, cut off the seedlings and release them. Throughout the growth period, the humidity in the shed should be controlled moderately, with the field water holding capacity of 70% in the early stage and 80% in the middle and late stage.

The suitable indoor temperature is 30 ~ 35℃ in the early stage, 28 ~ 30℃ in the middle stage and 25 ~ 28℃ in the late stage. When it exceeds the critical high temperature, it is necessary to ventilate and cool down.

In case of sudden high temperature weather, in addition to ventilation at both ends of the greenhouse, film should be uncovered at both sides as needed to increase ventilation and cool down, and film should be covered in time at 3 pm. ?

Prevention of pests and diseases:

Soak the seeds with carbendazim 500 times solution for 5 minutes before sowing, then sow with medicine, sprinkle some pesticides to prevent underground pests before mulching with plastic film, and spray the plants with chlorothalonil 800 times solution to prevent leaf spot at the later growth stage.