<；P>；PROBLEM TO BE SOLVED: To provide an afforestation material which enables labor saving, automation and unmanning in both seasons of a tree-planting season and a tree-growing season to efficiently plant trees in a vast barren land far from a densely populated area. <；P>；SOLUTION: This self-nutritive afforestation pile 10 is formed by gouging out the core of a pile from the upper central portion of the pile 11 formed from a wood to dispose a bud hole 14, obliquely radially disposing root holes 15 from places close to the bottom of the bud hole 14 toward the distal end of the pile, filling the lower portion of the bud hole and the root holes with a filler 17 obtained by mixing biodegradable substances capable of being used as nutritive sources for plants with microorganisms capable of degrading the substances to give the nutritive sources for the plants, and then embedding a tree seed 16 in the filler 17 close to the cross point of the bud hole with the root holes. The biodegradable substances include sea algae, polysaccharides, waste pulp, waste paper, weeds, and withered leaves. The self-nutritive afforestation pile 10 is obtained by integrally forming the tree seed and the nutritive sources necessary for growing the seed, and can efficiently be planted with an automatic control machine or a remote control machine. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
