제지슬러지 가공비료의 시용이 (施用) 수묘의 (樹苗) 생육에 미치는 영향 = Originals : Effects of Paper Mill Sludge - Fertilizer Application on the Growth Performances of Tree Seedlings

다국어 초록 (Multilingual Abstract)

Effects of paper mill sludge-fertilizers were investigated on the growth performances of tree seedlings under field conditions. Two types of sludge-fertilizers applied were an organic sludge compost and a processed sludge-pellet fertilizer strengthened with several components of organic and inorganic nutrients. Three species of tree seedlings studied were ibota privet(Ligustrum obtusifolium) and yellow poplar(Liriodendron tulipifera) of 1-0 year seedlings and also eastern white pine(Pinus strobus) of 2-2 year seedlings. Nitrogen and phosphorus contents of plot soil treated with sludge compost + sludge-pellet fertilizer + sludge-pellet fertilizer plot were increased to 8 times and 2.6 times as those of control plot, respectively. The growth performances of root collar diameter and seedling height were repeatedly measured up to five times through the growing season and the results were analyzed statistically by analysis of variance of randomized block design and Duncan`s multiple range test. The growth performances of dry weight were measured after last fifth measurements.