Journal article
Changes in soil biological quality indices after long-term addition of shredded shrubs and biogenic waste compost.
Publication Details
Authors: | Quintern, M.; Jörgensen, R.; Lein, M. |
Publication year: | 2006 |
Journal: | Journal of Plant Nutrition and Soil Science |
Pages range : | 488-493 |
Journal acronym: | J Plant Nutr Soil Sc |
Volume number: | 169 |
ISSN: | 1436-8730 |
Abstract
Long-term effects on soil chemical and soil biological properties were analyzed after an 8 y period with addition of biogenic household-waste compost and shredded shrubs with and without N fertilization to an arable field. The addition of compost and shredded shrubs to soil increased significantly all soil organic matter-related properties. The effects of compost addition on soil chemical properties were in most cases stronger than those of adding shredded shrubs, especially the effects on total N, 0.5 M K2SO4-extractable Corg and 0.5 M NaHCO3-extractable phosphate. In the shredded-shrubs treatments, basal respiration and the contents of soil microbial-biornass C, biomass N, and fungal ergosterol were significantly increased by 40%, 45%, 67%, and 90%, respectively. In the compost treatment, only microbial-biomass C and biomass N were significantly increased by 25% and 38%, respectively. Microbial-biomass P remained unaffected by both organic-amendment treatments. Nitrogen fertilization had significantly negative effects on the NaHCO3-extractable P fraction (-22%) and on the basal respiration (-31%), but positive effects on the ergosterol content (+17%).
Long-term effects on soil chemical and soil biological properties were analyzed after an 8 y period with addition of biogenic household-waste compost and shredded shrubs with and without N fertilization to an arable field. The addition of compost and shredded shrubs to soil increased significantly all soil organic matter-related properties. The effects of compost addition on soil chemical properties were in most cases stronger than those of adding shredded shrubs, especially the effects on total N, 0.5 M K2SO4-extractable Corg and 0.5 M NaHCO3-extractable phosphate. In the shredded-shrubs treatments, basal respiration and the contents of soil microbial-biornass C, biomass N, and fungal ergosterol were significantly increased by 40%, 45%, 67%, and 90%, respectively. In the compost treatment, only microbial-biomass C and biomass N were significantly increased by 25% and 38%, respectively. Microbial-biomass P remained unaffected by both organic-amendment treatments. Nitrogen fertilization had significantly negative effects on the NaHCO3-extractable P fraction (-22%) and on the basal respiration (-31%), but positive effects on the ergosterol content (+17%).
