| 不同麦秸秆还田量对机插水稻生长发育和产量的影响 |
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| 引用本文： | 季陆鹰,葛胜,郭静,杨武广,朱伟.不同麦秸秆还田量对机插水稻生长发育和产量的影响[J].安徽农业科学,2013,41(5):1982-1984. |
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| 作者姓名： | 季陆鹰 葛胜 郭静 杨武广 朱伟 |
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| 作者单位： | 江苏省扬州市邗江区农作物技术推广中心,江苏扬州,225009;江苏省扬州市邗江区农作物技术推广中心,江苏扬州,225009;江苏省扬州市邗江区农作物技术推广中心,江苏扬州,225009;江苏省扬州市邗江区农作物技术推广中心,江苏扬州,225009;江苏省扬州市邗江区农作物技术推广中心,江苏扬州,225009 |
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| 基金项目： | 江苏省农业三新工程项目 |
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| 摘 要： | 目的]研究不同麦(Triticum aestivum Linn.)秸秆还田量对水稻(Oryza sativa L.)生产的影响。方法]供试水稻品种为南粳44(早熟晚粳)、扬粳4227(早熟晚粳)。采用裂区试验设计,设南粳44和扬粳4227为2个主区,主区内均设对照(无秸秆还田)、半量麦秸秆还田、全量麦秸秆还田3个裂区处理。结果]在基肥、分蘖肥以及穗肥一致的前提下,随着麦秸秆还田量的增加,水稻前期分蘖起步越迟,茎蘖数、叶面积指数、干物质积累量、单位面积穗数均低于对照,但中后期叶面积指数、干物质积累量、单位面积穗数均呈相反趋势;水稻每穗粒数、千粒重、结实率以及产量随秸秆还田量的增加呈上升趋势;并且秸秆还田后土壤中有机质、碱解氮和全氮含量均高于对照以及试验前的土壤养分水平。结论]该研究可为大面积秸秆还田种植水稻提供理论依据。
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| 关 键 词： | 麦秸秆还田 水稻 生长发育 产量 |
Effects of Different Wheat(Triticum aestivum Linn.) Straw Returning Amount on Growth, Development and Yield of Machine-transplanted Rice (Oryza sativa L.) |
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| Institution: | JI Lu-ying et al(The Crop Technology Extension Center of Hanjiang District,Yangzhou,Jiangsu 225009) |
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| Abstract: | Objective] The aim was to study the effects of different wheat straw returning amount on production of machine-transplanted rice.Method] The test rice varieties were Early-maturing and late-season japonica rice,Nanjing 44 and Yangjing 4227.The split plot design was conducted.Nanjing 44 and Yangjing 4227 were two main plots,and each main plot had 3 split plots,control(no straw returning),half of wheat straw returning and total wheat straw returning.Result] Under the same application amount of basic fertilizer,tillering fertilizer and earing fertilizer,with the increasing of wheat straw returning amount,at the early period,rice tillering put off,and tiller number,leaf area index,dry matter accumulation and spike number per unit area were all lower than those of control,but at he middle and late period,leaf area index,dry matter accumulation and spike number per unit area had a opposite change law;with the increasing of wheat straw returning amount,rice grain per spike,1 000-grain weight,ripening rate and yield rose;and organic matter,alkali-hydrolyzable nitrogen and total nitrogen content in soil after straw returning were higher than those of control and before test.Conclusion] The study provides a theoretical basis for planting rice after straw returning in a large scale. |
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| Keywords: | Wheat straw returning Rice Growth and development Yield |
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