江西农业大学学报2016，Vol.38Issue(2)：215-222,8.DOI:10.13836/j.jjau.2016031
冬种紫云英与稻草还田对双季水稻产量和土壤性状的互作效应
Interaction of Winter Legume Manure Covering(Astragalus sinicus L.) and Atraw Retention on Yield and Soil Properties in A Double Rice Cropping System
摘要
Abstract
The objective of this study was to examine the interactive effect of winter legume manure cover⁃ing (Astragalus sinicus L.) and straw retention on yield and soil properties in a double rice cropping system.The results showed that winter legume manure covering and straw retention did not significantly affect both ear⁃ly and late rice yield in 2013,and no significant interaction was found.Straw retention had no significant effect on both early and late rice yield in 2014.There was marginally significant effect of winter legume manure cover⁃ing and straw retention on early rice yield in 2014 (P=0.090).Winter legume manure covering significantly increased the yield and biomass in early rice in 2014,but had no significant effect in late rice. Winter legume manure covering significantly increased the number of panicles and the number of spikelets per panicle in early rice in 2014,with marginally significant effect on the number of panicles in late rice (P=0.055).Winter leg⁃ume manure covering significantly reduced soil bulk density and increased the total porosity after the 2⁃year ex⁃periment.Straw retention significantly increased soil pH,whereas winter legume manure covering reduced the effect of straw retention.Winter legume manure covering and straw retention did not significantly affect the con⁃centration of soil organic carbon, total nitrogen, and available nitrogen. Straw retention significantly increased the concentration of available phosphorous and potassium,and promoted the activity of soil celluloses,inverta⁃ses,proteinases,and acid phosphatases,whereas winter legume manure covering had no significant effect.Win⁃ter legume manure covering and straw retention synergistically increased the concentration of soil available phosphorous and the activity of celluloses.关键词
紫云英/稻草/双季稻/产量/土壤性状Key words
Astragalus sinicus L./rice straw/double rice/yield/soil property分类
农业科技引用本文复制引用
黄山,汤军,廖萍,曾勇军,石庆华,潘晓华..冬种紫云英与稻草还田对双季水稻产量和土壤性状的互作效应[J].江西农业大学学报,2016,38(2):215-222,8.基金项目
国家自然科学基金项目（31460336）、国家“十二五”科技支撑计划项目（2012BAD14B14、2013BAD07B12）和中国博士后科学基金资助项目Project supported by the National Natural Science Foundation of China （31460336），the National Key Technolo-gy Research and Development Program （2012BAD14B14，2013BAD07B12），and the China Postdoctoral Science Foundation （）
