| 摘要 |
PURPOSE:To rapidly breed a nursery stock of tree by making a nursery stock of tree grown by a water culture at the initial stage familiar with common soil by laying particles of sandstone liable to change to soil in the midst. CONSTITUTION:Water culture is used in a period from seed to about 1 meter height, then a readily breakable flowerpot is used, roots of tree are entangled with particles of sandstone, etc., to become soil in the future, a method analog to water culture is applied, then an easily breakable flowerpot having a size for tree planting is used, common soil is laid around the flowerpot, the former flower pot is broken, the nursery stock of tree is planted and water containing nutrient is sprayed to breed the nursery stock of tree. The tree grown by water culture at the initial state is subjected to a method of making the tree familiar with common soil through sandstone, etc., to breed the nursery stock of tree. Consequently, the nursery stock of tree cultured and reached to 3-4 meters suitable for tree planting is obtained. |
