First, soaking
The dried seeds were immersed in warm water of 55 °C ~ -60 °C for 15 minutes, and stirring constantly, and soaking in 28 °C -30 °C water for about 6 hours.
Second, germination
Pack the soaked seeds with a damp cloth, keep the temperature at 25 °C -30 °C during the day and 18 °C -20 °C at night, and select 80% of the seeds for whitening and sunny sowing. In order to ensure that the seed does not carry pathogens, it can also be treated with medicaments, for example: use 1 million 500 times of streptomycin sulfate to soak seeds for 2 hours, wash and soak seeds for 3 hours to germinate. The sowing date is from mid-late February to early March.
Third, nursery nutrition soil preparation
The principle of nutrient soil selection is: good air permeability, heat preservation, moisturizing, water seepage, the ratio of matrix and organic fertilizer is 3:2, and the added organic fertilizer must be fully decomposed. In addition, 100 g of 50% carbendazim powder and 1 kg of compound fertilizer were added to each nutrient soil matrix, mixed evenly, and placed in a plastic mortar.
IV. Seedling management
Seedlings are raised in the greenhouse, and the indoor temperature is maintained at 28 °C to 32 °C during the day and 17 °C to 20 °C at night. In order to prevent the occurrence of disease, after the emergence of Qimiao, use 72.2% Preclosure 700 times to irrigate roots. The seedlings were planted 7 days before planting, with a temperature of 20 °C -22 °C during the day and 10 °C - 13 °C during the night (gradually falling to 8 °C - 10 °C). Seedling age 30-35 days, 3 leaves and 1 heart, spraying 0.1% multiple compound fertilizer on foliar once.
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