Early spring loofah cold bed breeding technology

1. Formulated nutritious soil. Before sowing, prepare a non-toxic nutrient soil as early as possible. From the 7th to the 8th of the previous year, fertilize vegetable garden soil, manure, manure, manure or garbage that has not been used for cultivating melon vegetables for more than 3 years, and use carbonized husk or plant ash 1 Mixing and composting fermented spare. Too late to ferment can be disinfected with nutrients after disposing nutritious soils by diluting it 100 times with formalin, spraying the liquid evenly on the nutrient soil layer, and stacking the nutritious soil repeatedly and stacking the plastic film. , Closed for 2 to 3 days, the drug soil spread out 5 to 7 days, so after the drug gas can be used up. 1kg formalin can handle 4000 to 5000kg nutritious soil. Can also be 1 cubic meters of nutrient soil mixed with 70% pentachloronitrobenzene powder and 50% of the same or 65% of the same level of zinc WP can be mixed with 120 ~ 150g disinfection, used as pad soil and cover seed soil . 2. Variety selection. Early cultivation of greenhouses use Yahua short stick early loofah, Yahua green green early loofah, Changsha meat loofah, open cultivation can choose Yahua green green early loofah, local white gourd, etc., both can be used to cover a small shed in the greenhouse cooling bed Nursery. As early as mid-February planting greenhouse cultivation, open-field cultivation in the middle and early March sowing, for every 667 square meters of field amount of 100 ~ 150g. 3. Seed treatment. Use warm water and potassium permanganate to soak seed, soak in seeds with 0.1% potassium permanganate in water of 50°C~55°C for 15-20 minutes, keep stirring, wash or germinate directly. Or soaking with chemicals, soaking in warm water of 35 °C ~ 40 °C for 8 ~ 10 hours, then 50% carbendazim gel suspension and 50% thiophanate-methyl rubber suspension 10ml, add water 1.5kg, soaking 20 ~ 30 Minutes, water rinse 2 or 3 times after germination or direct sowing. 4. Germination sowing. 1 Pregermination: Disinfected and soaked seeds were wrapped in wet gauze and placed at a temperature of 30°C to 35°C for germination for 2 to 3 days. Buds were grown when 1.5 cm in length. 2 sowing. Use greenhouses to cover small nursery seedlings, sowing seedbeds should be used to sow planted bed water, then lay 5cm thick nutrient-dilutive soil on sowing bed, then sowing, sowing, cover fine soil 1cm, cover the film to promote germination After the emergence, the mulching film will be lifted. Can also be used to nurse seedlings, nutrition specifications are 10cm10cm, the nutrients into the nutrient soil, the pregerminated seeds will be inserted into the nutrient soil, the nutrients in the greenhouse on the seedbed with a plastic film, the cover film and Small arch shed insulation, after the emergence of the mulching film lifted, without seedlings. 5. Seedling management. 1 point seedling: Seed sowing seedlings emerged 2 to 3 days after sowing, sowing seeds were sown after 16 to 25 days. One leaf is divided into seedlings. 1 loofah per loquat, after the sub-seedling pressure water, cover a small arch shed warming and moisturizing, promote slow seedlings. 2 temperature and humidity management: from sowing to cotyledon micro-exhibition, maintaining a high temperature and humidity, bed temperature 25 °C ~ 30 °C, relative humidity of 80%. From cotyledons to sub-seedlings, maintain 25°C to 30°C during the day, control the bed temperature at 16°C to 20°C, sub-seedling to a slow seedling temperature of 10 to 28°C, and reduce the seedling temperature to 10°C to 20°C. . When the dry hair or seedlings are showing wilting, they are watered. The seedlings should be cultivated 7 days before planting, the bed temperature dropped to 10°C to 12°C, and seedlings grew 3 to 4 true leaves when planting. 3Pest and disease control: mainly cataplexy, anthrax, etc., spraying 75% chlorothalonil wettable powder 500 times liquid or 50% carbendazim wettable powder 500 times liquid in the early stage of disease, 7 days to 10 days, even spray 2 to 3 times. The mantle can spray 90% trichlorfon 800 times.

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