Artículo de revista
Effect of poultry litter and livestock manure on soil physical and biological indicators in a rice-wheat rotation system [2011]
Li, J.T.,Guangzhou Univ. (China). School of Geographical Sciences; Zhong, X.L.,South China Agricultural Univ., Guangzhou (China). Coll. of Informatics; Wang, F.,Guangzhou Univ. (China). School of Geographical Sciences; Zhao, Q.G.,Chinese Academy of Sciences, Nanjing (China). State Key Lab. of Soil and Sustainable Agriculture;
Ver texto completo
The aim of this study was to determine the influence of poultry litter (PL) and livestock manure (LM) from intensive farming on soil physical and biological properties in a rice-wheat rotation system. Our results showed that PL and LM amendment increased soil macropore and mesopore volumes and decreased soil micropore volumes. Tensile strength in PL and LM treatment were lower than those in CF, while soil aggregate wet stability index were greater than those in CF. Compared with CF treatment, the microbial biomass C and N contents (+89%, +74%), soil basal respiration rate (+49%) and soil microbial quotient (+45%) in PL and LM treatment were significantly greater. Significant linear correlations were found between soil organic carbon and most soil physical and biological properties (P less than 0.01). Intensive farm manures can be an alternative to chemical fertilizers in a rice-wheat system as they improve soil physical and biological properties.
