施用鸡粪后土壤磷的累积特征  

Accumulation of Phosphorus in Soils in Chicken Manure Amended Soils

作　　者：杨苞梅[1] 宋玉萍[1,2] 卢维盛[2] 李国良[1] 姚丽贤[1] 何兆桓[1] 周昌敏[1] 

机构地区：[1]广东省农业科学院土壤肥料研究所,广东省养分资源循环利用与耕地保育重点实验室,广东广州510640 [2]华南农业大学资源环境学院,广东广州510642

出　　处：《土壤通报》2011年第2期421-425,共5页Chinese Journal of Soil Science

基　　金：广东省科技攻关项目(2006B20601010);公益性行业(农业)科研专项(3-26);广东省重大科技专项(2007B080401019,2008A080401008)资助

摘　　要：根据不同方式计算鸡粪施用量,进行连续6茬蔬菜施用鸡粪田间试验,研究农田土壤中磷的累积特征。结果表明:土壤中全磷、树脂态磷、碳酸氢钠提取态磷、氢氧化钠提取态磷和稀盐酸提取态磷含量均随着鸡粪用量的提高而显著提高,且含量增幅随着种植茬数的增加而提高,故在生产实践中以作物需磷量配施鸡粪较优,否则由此所引起的土壤盈余磷素流失或淋失对地表水和地下水水质的潜在影响风险较大。Six successive vegetable field trials were conducted to investigate the phosphorus accumulation in soils fertilized with chicken manure（CM）.The application rates of CM were determined by the P-based and N-based requirement of vegetables respectively.The results showed that total P,Resin-P,NaHCO3-P,NaOH-P,diluted HCl-P in soils increased with the increase of chicken manure application rates,and with the increase of crop cultivation times.Therefore,the application rate of chicken manure should not be too high in agricultural practice at one time,and P-based manure application rate was better than that of N-based.The potential risk of P loss by runoff or leaching,which may pollute surface or ground water,will be higher with P accumulation in chicken amended soils.

关 键 词：鸡粪 土壤 磷 累积 Tiessen磷素分级法 

分 类 号：S153.6[农业科学—土壤学]