High-yield Cultivation Techniques of Cucumber in Greenhouse in Winter

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1. Variety selection

General requirements for selection of varieties: strong plant growth, thick stems and short internodes. The leaves are dark green. The main vine fruiting is the main fruit, and the fruiting starts at the 3rd to 5th nodes, and the sitting rate is high.

Second, the selection of melon

Choose plots with fertile soil, deep soil layers that are not easy to cause water accumulation, and continuous planting of cucumbers for no more than 2 years.****** Choose plots where root crops are planted in the previous stubble without using stem and leaf herbicides. For example, fields where peanuts and soybeans are grown.

Three, cultivate strong seedlings

Generally, cucumbers can be planted in greenhouses in winter from the end of September to the end of December.

1. Sterilize germination before planting

Before raising seedlings, scald the seeds with warm water at about 50℃~60℃ for 8-10 minutes. After the seeds are put into the water, stir them to prevent scalding until about 30℃. Then let them stand and soak for 5-6 hours to wash away the seed film. Pick up and drain, put it in a breathable wet gauze and place it in a greenhouse or incubator at a temperature of 25 to 30 degrees for germination.

2. Prepare nutrient soil for sowing

One cube of nutrient soil: 7-8 parts of seedbed soil + 4-5 parts of fully decomposed farmyard manure + 0.5-1 kg of phosphate fertilizer + 0.1 kg of 70% mancozeb + 10-15 kg of plant ash + 0.1 kg of sulphur Phosphorus is then used after all these are turned over evenly and piled up for 5-7 days.

3. Seedling management

The seedling stage management is mainly based on temperature increase and humidity control. Watering is sprayed with a watering can, and the watering time is selected in the morning on a sunny day. After watering, timely ventilation and moisture removal are included. At the same time, 0.2% is included in the seedling stage combined with pest control. Foliar spraying with potassium dihydrogen phosphate + 1% glucose enhances the cold resistance and disease resistance of the seedlings.

Four, colonization

Catch the shed 10-15 days before planting, water the shed 7 days later to create moisture, and ventilate the shed 3 days after watering. 3 to 5 days before planting, deep plow the ground, level the ground, and apply fertilizer. Generally, 5000-5500 kg of decomposed organic fertilizer and 80-100 kg of compound fertilizer are applied per acre as base fertilizer, and some medium and trace elements such as calcium and boron are added. Fertilizers can improve yield and quality.

Planting should be planted in a shallow trench in the afternoon and evening on a sunny day. According to the temperature changes, the temperature should be kept at about 25℃ in the shed. The planting spacing is generally 25 ~ 27 cm and the row spacing is about 60 ~ 65 cm. Planting per acre About 4000 to 4500 plants.

Dip the seedlings with 1 pack of Oxymethalin + 1 pack of Zhongshengmycin + 1 pack of Bihu, mixed with 30 kg of water to make a medicinal solution, soak the plug in the medicinal solution, soak for about 3 to 5 seconds, then take it out and let stand for 1 to 2 It can be planted within hours.

Planting generally choose the morning temperature of about 10 ℃ ~ 15 ℃, watering the seedling extraction water once, be careful not to apply nitrogen, phosphorus and potassium large element fertilizers, you should apply silicon fertilizer or calcium fertilizer, and apply 6 kg of silicon fertilizer per acre.

5. Mid-term management

After planting, you should pay attention to the management of the first vine. Except for the main stem, all the buds must be wiped off. Wait until the cucumber climbs on the shelf and then pinch the tips. Leave two or three strong vines for its development. Cut off all the extra vines.

Timely disease prevention, control of powdery mildew and downy mildew, foliar spray with cymoxanil manganese zinc once every 7-10 days to prevent downy mildew and fungal diseases.

Six, middle and late management

The main reason is to keep the melons and roots rationally. The technique of keeping the melons is to keep the third melon separated by 4 leaves from the second melon; to avoid defertilization during growth, it is necessary to add fertilizers, Cooperate with potash fertilizer. Also pay attention to timely prevention and control of leaf anthracnose, use ether amide 1500 times, chlorothalonil 1500 times, Kaiyuan Tongfeng 800 times, and spray the leaves twice in 5 days. Dip the flowers with forchlorfenuron to make the cucumbers grow straighter. Water with 1:50 beer and water to make the flowers brighter.

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