Greenhouse cucumber planting technology is not difficult to master the sowing time and daily management points is the key

Cucumber has always been a best-selling vegetable variety in the market, and it is also widely planted, which mainly includes facilities and open field. Because the mature period of greenhouse cultivation can be controlled, the yield increases exponentially and the economic benefit is high, it has become the main cultivation mode all over the country. It is not difficult to master the sowing time and the key points of daily management of cucumber planting technology in greenhouse.

When do cucumbers are usually sown in the greenhouse? What is the specific method?

The planting in the north is mainly from October to November, and it is usually from August to September to turn the shed deeply, deal with weeds and other sundries in the shed, deal with the soil, and begin to plant cucumber seeds in the nutrition bowl around October. Basically, the planting time is in mid-late October and early November.

1. Variety selection: excellent varieties with low temperature tolerance in early stage, high temperature tolerance in later stage and strong disease resistance should be selected in cucumber cultivation.

2. Seed treatment: the cucumber seeds were dried 1-3 days before sowing. After drying, the seeds were scalded with 55 ℃ of warm water for 10-15 minutes, and continuously stirred until the water temperature dropped to 30-35 ℃. The seeds were scrubbed repeatedly, and the slime was washed with clean water, soaked for 3-4 hours, and the soaked seeds were wrapped in a clean wet cloth. Under the condition of 28-32 ℃, the seeds were germinated for 1-2 days, and the seeds were sown when 70% of the seeds were "white".

3. Soil preparation: the nutritious soil of cucumber has not been planted with melons and vegetables in the past 3 to 5 years. The garden soil or field soil is mixed with high-quality mature organic fertilizer, and the organic fertilizer accounts for 30%. The soil and organic fertilizer are evenly sifted. The screened nutritious soil was mixed with 100 grams of carbendazim per cubic meter of soil to form medicinal soil.

4. timely sowing: the sowing date of cucumber is mid-January or late January, and seedlings can be raised in a heating greenhouse or energy-saving solar greenhouse. A nutrition bowl with a diameter of 10 cm and a height of 10 cm is filled with nutrient soil 8 cm and watered thoroughly. After water penetration, one germinated seed is sown in each nutrition bowl, and the soil is covered with plastic film to preserve soil moisture.

II. Key points of daily management of cucumber in greenhouse

1. Temperature management

Just after planting, the ground temperature is low, so it is necessary to put up the shed immediately, even if the short-term temperature exceeds 35 ℃, in order to increase the ground temperature as soon as possible to promote slow seedling.

There is no excessive temperature during the slow seedling period, so there is no need to keep out the wind. The small arch shed is removed in time in the morning to raise the soil temperature as soon as possible. After slowing down the seedlings should be released in time according to the weather conditions, the time of 21: 28 ℃ should be more than 8 hours, and the lowest temperature at night should be maintained at about 12 ℃.

With the increase of external temperature, the tuyere gradually increases, and when the external temperature is stable above 12 ℃, it can be ventilated day and night. The temperature in the greenhouse is 25: 30 ℃ in the morning and 20: 25 ℃ in the afternoon.

2. Ploughing and loosening the soil

After slowing down cucumber seedlings were ploughed for 3 or 4 times to loosen the soil, from near to far, from shallow to deep, combined with mid-tillage to cultivate melon seedlings, and finally formed small high ridge cultivation.

3. Rational watering

Cucumber should be watered with slow seedling water after planting, and then should not be watered after dry. When the cucumber grows to 12 leaves, about 60% of the seedlings have about 12 cm of melons, pour the second water.

After entering the melon-bearing period, the water demand increases, and the watering interval should be adjusted according to the growth situation, weather and other factors. Cucumber should be watered once in 7-10 days in the early growth period, 5-7 days in the middle period, and 3-5 days in the later stage. It is better to water in the early stage on a sunny day in the morning.

Time: 2019-03-14 Click: