De Silva, A.2020-12-072020-12-072000Annals of the Sri Lanka Department of Agriculture, 2:p.55-64https://dl-doa.nsf.gov.lk/handle/1/2962NATURAL RESOURCES AND ENVIRONMENTAggregationNoncalcic brown soilsOrganic materialEffect of adding organic material on aggregation in noncalcic brown soils in Sri LankaArticle