CAJ | 학술논문

研究了不同类型的污泥(城市的、工业的和住宅污泥)对苗圃生长的银合欢幼苗田间萌发、生长和分枝的影响.播种前先将不同类型污泥的混合物与养分匮乏的自然林土壤混合.播种的3和6月后,记录幼苗大田发芽、分枝状况和其他物理生长参数(枝条或根长、活力指数、茎直径、叶片数、分枝或根鲜重和干重、总的生物量干重增长)等.与对照幼苗相比,混合污泥的土壤中生长的幼苗田间发芽、分枝状况及其他生长参数均发生了显著变化.与其它条件生长的幼苗相比,住宅污泥与土壤混合(1:1)条件生长的3月龄和6月龄幼苗分枝数和分枝鲜或干重均最高.就生长参数而言,住宅污泥与自然林土壤混合(1:1)生长的幼苗长势最好.研究表明:退化的土壤补偿以住宅污泥可促进银合欢的田间发芽、生长以及分枝的形成.图1表3参29.
연구료불동류형적오니(성시적、공업적화주택오니)대묘포생장적은합환유묘전간맹발、생장화분지적영향.파충전선장불동류형오니적혼합물여양분궤핍적자연림토양혼합.파충적3화6월후,기록유묘대전발아、분지상황화기타물리생장삼수(지조혹근장、활력지수、경직경、협편수、분지혹근선중화간중、총적생물량간중증장)등.여대조유묘상비,혼합오니적토양중생장적유묘전간발아、분지상황급기타생장삼수균발생료현저변화.여기타조건생장적유묘상비,주택오니여토양혼합(1:1)조건생장적3월령화6월령유묘분지수화분지선혹간중균최고.취생장삼수이언,주택오니여자연림토양혼합(1:1)생장적유묘장세최호.연구표명:퇴화적토양보상이주택오니가촉진은합환적전간발아、생장이급분지적형성.도1표3삼29.
A study was carried out to determine the influence of different types of sludges (municipal, industrial and residential) on field germination, growth and nodulation of L. leucocephala seedlings in the nursery. Before sowing of seeds, different combinations of sludges were incorporated with the nutrient deficient natural forest soils. Field germination, nodulation status and physical growth parameters of seedlings (shoot and root length, vigor index, collar diameter, leaf number, fresh and dry weight of shoot and root and total dry biomass increment) were recorded after three and six months of seed sowing. Field germination, nodulation status and growth parameters were varied significantly in the soil amended with sludges in comparison to control. The highest number of nodule was recorded from soil amended with residential sludge (1:1) and highest fresh and dry nodule weight was also found from the same combination in both three and six month old seedlings. In case of growth parameters, the highest growth was recorded from soil and residential sludge (1:1) combination compared to control. From the study, it can be recommended that soil amended with residential sludge (1:1) provide better field germination, growth and nodule formation of L. leucocephala in degraded soil.