Detailed Explanation of Key Points for Spring Greenhouse Cucumber Cultivation Techniques
Variety selection: Choose early-maturing, disease-resistant, high-quality varieties such as Changchun Mici, Jinza No. 2, Jinchun No. 2, etc. 1. Seedling raising period: Raise seedlings in a greenhouse in early February 2. Preparation of nutrient soil: The ratio is decomposed organic fertilizer : garden soil : fine furnace ash = 5:4:1. Add 0.5 kg of urea per cubic meter of nutrient soil...
Variety selection: Choose early-maturing, disease-resistant, high-quality varieties such as Changchun Mici, Jinza No. 2, Jinchun No. 2, etc.
Seedling raising
1. Seedling raising period: Raise seedlings in a greenhouse in early February
2. Preparation of nutrient soil: The ratio is decomposed organic fertilizer : garden soil : fine furnace ash = 5:4:1. Add 0.5 kg of urea and 1-2 kg of diammonium phosphate per cubic meter of nutrient soil and mix evenly
3. Seed soaking and germination: Soak the seeds for 4-6 hours, place them at 25-30°C to germinate, and they can sprout in 1-2 days
4. Sowing: Can be sown directly in nutrient pots or sown in seedbeds (this method requires pricking out). After sowing, maintain 25-30°C during the day and 18-20°C at night; after emergence, maintain 25-30°C during the day and 12-16°C at night. The seedling age is about 40 days.
5. Standards for strong seedlings: Plant height 15-18 cm, 5-6 true leaves, dark green leaf color, spreading growing point, stem diameter 1 cm, short internodes, terminal flowers with buds
Field planting
1. Field planting period: Late March
2. Field planting density: Wide row spacing 75 cm, narrow row spacing 25 cm, plant spacing 30-33 cm, 3800-4200 plants per mu.
3. Field planting method: Apply 5000 kg of organic fertilizer, 20-30 kg of diammonium phosphate, and 10 kg of urea per mu. Bed width 100 cm, use dark-water field planting.