机械化稻草全量还田下双季早稻生长发育、产量及品质的响应  

Effect of Mechanized Total Returning of Straw to Field on Growth,Yield and Quality of Early Rice

作　　者：曾研华[1] 吴建富[1] 何虎[1] 潘晓华[1] 石庆华[1] 杨小华 吴玉成 

机构地区：[1]江西农业大学作物生理生态与遗传育种教育部重点实验室/农业部双季稻生理生态与栽培重点开放实验室/江西省作物生理生态与遗传育种重点实验室,江西南昌330045 [2]进贤县温圳镇农技站,江西进贤331721

出　　处：《江西农业大学学报》2011年第5期840-844,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家"十一五"科技支撑计划项目(2006BAD02A04);江西省科技支撑计划重点项目(2009BNA03800)

摘　　要：通过田间定位试验,在氮、磷和钾养分相等条件下,研究了稻草全量还田方式对双季早稻生长发育、产量和品质的影响。结果表明:稻草全量还田提高水稻分蘖数、中后期的叶面积指数以及地上部干物质量,增加剑叶的SPAD值和根系活力,延缓衰老,增加单位面积有效穗数,较稻草不还田和稻草烧灰还田,产量增加3.41%～4.33%,增产显著;稻草全量还田有利于改善稻米加工品质和食味品质,但降低了稻米外观品质和营养品质。Effects of total returning of straw to paddy field on growth and development,yield and quality of early rice were studied through a paddy fertilization experiment with the equal application of nitrogen,phosphor and potassium nutrients.The results indicated that total returning of straw to field increased the number of tillers,the middle and latedate leaf area index and aboveground dry matter.Returning straw to field also increased SPAD,root activity,the number of avilability panicles in unit area,and grain yield of rice,and delay the senescence trend.The effects of total returning of straw to field on yield were obviously greater than those straw without returning to field or with straw increration returning,and the amount of yield increase was 3.41%~4.33%.Under the condition of experiment,total returning of straw to field could improve the processed quality of rice and improve its flavor quality,but lower its external and nutrition quality,its steamed quality was not obviously changed.

关 键 词：早稻 生长发育 稻草全量还田 产量 品质 

分 类 号：S511.31[农业科学—作物学]