Experimental Study on 2-year-old Container Seedling Raising Technology of Michelia wilsonii in Southern Sichuan
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Graphical Abstract
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Abstract
In order to select the most suitable growth combination for 2-year-old container seedling raising technology of Michelia wilsonii in southern Sichuan, the effects of substrate ratio, container size and slow-release fertilizer on the height diameter of Michelia wilsonii seedlings were analyzed by orthogonal experiments. The results showed that substrate ratio had significant effect on seedling height, height-diameter ratio, but no significant effect on ground diameter. The amount of slow-release fertilizer had significant effect on ground diameter and seedling height, and height-diameter ratio. Container size had significant effect on seedling height, height-diameter ratio, but no significant effect on ground diameter. According to comprehensive evaluation, the most suitable combination for containerized seedling growth of Michelia wilsonii in south Sichuan was selected as follows: the container size was 10 cm×15 cm, the substrate ratio of coconut husk 1 : peat 2 : soil 1, and the amount of slow-release fertilizer was 3 kg·m−3, which could cultivate 2-year-old container seedlings with height of 87.77 cm and ground diameter of 10.74 cm.
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