三种生物质炭对北疆棉田土壤氮素平衡及棉花产量的影响  

Effects of Addition of Three Types of Biochar on the Soil Nitrogen Balance and Cotton Yield

作　　者：黄婷[1] 倪杰强 许文霞[1] 翟勇[1] 冶军[1] 侯振安[1] 

机构地区：[1]石河子大学农学院资源与环境科学系,新疆石河子832003

出　　处：《棉花学报》2015年第6期595-600,共6页Cotton Science

基　　金：国家自然科学基金(31160415);新疆生产建设兵团杰出青年创新资金专项(2014CD002)

摘　　要：通过棉花田间试验,研究不同类型生物质炭对土壤的氮素平衡以及棉花产量的影响。试验采用单因素设计,分别设对照(空白土壤)、棉花秸秆生物质炭、玉米穗轴生物质炭、鸡粪生物质炭4个处理,三种生物质炭的施用量均为4.5 t·hm-2。结果表明,三种生物质炭处理的土壤氮素表观损失量显著降低,进而降低氮素盈余,棉花秸秆生物质炭处理效果最显著;各个处理植株氮素吸收量存在差异,表现为棉花秸秆生物质炭和鸡粪生物质炭大于玉米穗轴生物质炭。棉花产量受生物质炭类型影响显著,鸡粪生物质炭增产效果最好。The objective of this study was to determine the effect of biochar addition on the soil N balance and cotton yield in a drip-irrigated cotton field. The experiment included four soil amendments： control, cotton straw biochar, corn cob biochar, and poultry manure biochar. The biochar was applied at a rate of 4.5 t·hm-2except control. The results showed that all three types of biochar significantly reduced both the apparent soil N loss and the N surplus. The effect of cotton straw biochar treatment was most significant, relative to the control. Plant nitrogen uptake differed significantly between the different treatments, decreasing in the order cotton straw biochar poultry manure biochar corn cob biochar. Cotton yield also differed significantly between the different treatments, decreasing in the order poultry manure biochar corn cob biochar, and cotton straw biochar.

关 键 词：生物质炭 硝态氮 产量 氮素平衡 

分 类 号：S562[农业科学—作物学]