Colour:7 Description: planting method: Results 1. Soak the seeds. The seeds were immersed in warm water for 12 hours prior to planting. Result 2. Sand. Choose a thicker river sand with good breathability. Sand and seeds are mixed in a 3:1 ratio. The humidity of the sand - loose and scattered. After mixing, the mixture of seed and sand can be placed indoors. The sand was hidden for about a month. It is often seen and found to have germinating seeds. It is necessary to sow in time. Result 3. Sowing. 3 kilograms per acre of seeds, a small groove 10 cm wide and 20 cm deep, on a well-developed ridge. Sprinkle the seeds in small grooves in the opening and apply evenly. Result 4. Cover the soil and support the small arch shed. After sowing, the seeds should be covered with a layer of moist fine soil. The cover soil should not be too thick, usually 0.5-1 cm. Support the plastic shed, the sunscreen net shed on the plastic shed, pay attention to the plastic arch shed, the upper part of the sun visor arch shed, the distance between the two arch sheds should be greater than 20cm. Results 5. Daily maintenance. When the temperature is too high, ventilate immediately and reduce the temperature by spraying on both ends of the film arch. When the seedlings grow to 5-10 cm, the film arch shed is removed. The sun protection net arch shed will continue to be retained. After the seedlings grow to 20-30cm, open the sunscreen net sooner or later, cover the sunscreen net at noon, and refine the seedlings. After 2 weeks, all sunscreen will be removed. Result 6. Water and fertilizer, weeding, until the seedling grows to 10cm, foliar fertilizer or a small amount of urea can be used to prevent seedling burns. At present, no effective herbicide does not harm maple seedlings, so manual weeding is generally used.
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