农业资源与环境学报Issue(1)：50-55,6.DOI:10.13254/j.jare.2014.0213
施用生物炭对云南烟区典型土壤养分淋失的影响
Effects of Biochar Addition on Nutrient Leaching Loss of Typical Tobacco-planting Soils in Yunnan Province, China
摘要
Abstract
The leaching loss of soil nutrients especially of nitrogen and potassium is generally serious in Yunnan tobacco planting region, which greatly limits sustainable development in tobacco production. In recent years some studies indicate that biochar application is effecitve in reducing soil nutrient leaching losses. However, few reports are available on biochar application effects on tobacco planting soils in Yun-nan Province. In order to provide scientific basis for extensive and proper application of biochar, calcareous purple soil, lateritic red soil and yellow brown soil were selected to investigate the effects of biochar addition on nitrate(NO3--N), phosphorus(P)and potassium(K)leach-ing by using a soil column incubation experiment. Results showed that compared with no biochar control, biochar addition significantly de-creased total NO3--N leaching by 16%, 14%and 22%for calcareous purple soil, lateritic red soil and yellow brown soil respectively. Biochar addition reduced total P leaching by 41%and 32%for calcareous purple soil and lateritic red soil respectively, but not for yellow brown soil comparing with no biochar control. Total K leaching was increased by 19%and 23%for calcareous purple soil and yellow brown soil respec-tively, but not for lateritic red soil under the biochar addition. Our data indicated that in general biochar application is an effective option for reducing NO3--N and P leaching losses of tobacco planting soil in Yunnan Province.关键词
生物炭/养分淋失/紫色土/赤红壤/黄棕壤Key words
biochar/nutrient leaching/calcareous purple soil/lateritic red soil/yellow brown soil分类
资源环境引用本文复制引用
李江舟,张庆忠,娄翼来,张立猛,杜章留,刘杏认,王一丁..施用生物炭对云南烟区典型土壤养分淋失的影响[J].农业资源与环境学报,2015,(1):50-55,6.基金项目
中国烟草总公司云南省烟草公司科技计划项目 （）
