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首页> 外文期刊>Journal of Plant Nutrition >INFLUENCE OF CORN (ZEA MAYS L.) CULTIVAR DEVELOPMENT ON RESIDUE PRODUCTION
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INFLUENCE OF CORN (ZEA MAYS L.) CULTIVAR DEVELOPMENT ON RESIDUE PRODUCTION

机译：玉米（玉米）栽培技术对渣油生产的影响

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The amount and composition of crop residues added to soil in agroecosystems can influence decomposition processes and soil organic matter levels. This study aimed to evaluate residues (quantity and quality) of different corn cultivars commonly used in Brazilian cropping systems. The experiment was conducted for two seasons (2005/2006 and 2006/2007) in Rolândia, Paraná State, Brazil. Ten corn cultivars that represent five degrees of breeding development (i.e., landrace, commercial variety, double cross, triple cross, and single cross hybrids) were evaluated. At harvest, carbon (C) and nitrogen (N) of non-yield residue and grain were determined. Except for grain C, other measures (grain N concentration, residue C and N concentration, and C:N ratio) varied among cultivars. In general, the hybrids had higher residue C and lower residue N concentrations than the landraces and commercial varieties. Findings suggest that breeding selection may have altered residue production and composition, which may influence soil C dynamics.View full textDownload full textKeywords Zea mays L., corn cultivars, C and N concentration, residue qualityRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/01904167.2012.653078
机译：在农业生态系统中添加到土壤中的农作物残留物的数量和组成会影响分解过程和土壤有机质水平。这项研究旨在评估巴西种植系统中常用的不同玉米品种的残留量（数量和质量）。该实验在巴西巴拉那州罗兰迪亚进行了两个季节（2005/2006和2006/2007）。评价了代表五个育种发展程度的10个玉米品种（即地方品种，商业品种，双杂交，三杂交和单杂交种）。在收获时，测定了非产量残留物和谷物的碳（C）和氮（N）。除谷物C外，其他措施（籽粒N浓度，残留C和N浓度以及C：N比）在不同品种之间也有所不同。通常，与地方品种和商业品种相比，杂种具有更高的残基C和更低的N浓度。研究结果表明，选育可能会改变残渣的产量和组成，从而影响土壤碳的动态。查看全文下载全文关键词玉米，玉米品种，碳和氮浓度，残渣质量相关变量var addthis_config = {ui_cobrand：在线”，services_compact：“ citeulike，netvibes，twitter，technorati，可口，linkedin，facebook，stumbleupon，digg，google，更多”，发布号：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/01904167.2012.653078

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