干旱地区农业研究Issue(3)：179-183,5.
秸秆残茬对低温潜沼性稻田土壤还原性物质含量及稻谷产量的影响
Effect of straw returning on soil reducing substance and rice grain yield in gleyed paddy field
摘要
Abstract
The field experiment was carried out at Mianyang ,Sichuan province .Redox potential ,total reducing substance and Fe2+ content were measured for the soil treated with four levels of straw ,with the aim of exploring the rela-tion between soil properties and rice grain yield .Results are shown as follows .As compared with T0 treatment (control ) , total reduction of soil was increased by 2 .2~4 .8 cmol·kg-1 ,Fe2+ content by 10 .8~40 .8 mg·kg-1 ,while redox po-tential decreased by 23 .2~96 .5 mV ,as the amount of straw increased from 2 .5 to 10 .0 t·hm-2 .Rice grain yield was reduced by 1 140~1 560 kg·hm-2 .Grain weight decreased by 0 .2 g ,filled grain rate by 4 .2% ,when more than 5 .0 t·hm-2 was incorporated into the paddy soil .关键词
秸秆残茬/稻田/低温潜沼/还原性物质量/产量Key words
straw residue/rice field/gleyed paddy soil/reducing substance/rice yield分类
农业科技引用本文复制引用
王红妮,王学春,陶诗顺,李军..秸秆残茬对低温潜沼性稻田土壤还原性物质含量及稻谷产量的影响[J].干旱地区农业研究,2014,(3):179-183,5.基金项目
西南科技大学校博士基金项目（11zx7140）；四川省教育厅项目（13ZB0299）；国家“十二五”科技支撑计划重大项目 （）
