作者：易时来,何绍兰,邓烈,谢让金,石孝均
作者单位：西南大学柑桔研究所,中国农业科学院柑桔研究所,西南大学资源环境学院
摘要：为给西南地区小麦高产优质栽培中合理施氮提供依据,以西农麦1号为材料,在西南地区有代表性的中性紫色土上,研究了施氮对小麦氮素吸收利用及产量和品质的影响。结果表明,施氮在0~225 kg/ha范围内,随氮肥用量的增加,小麦对氮的吸收量、籽粒粗蛋白质含量、籽粒产量和茎叶干重都显著增加,但氮的收获指数和氮肥的农艺效率却呈下降趋势。小麦各处理氮肥利用率平均为39.6%,以施纯氮75 kg/ha水平最高。施氮对改善小麦的品质作用明显,其中籽粒淀粉含量以施纯氮量150 kg/ha时最高。
关键词：小麦,紫色土,氮素,吸收/利用,产量/品质
Title: Effect of N Application on N Utilization and Yield-Quality of Wheat in the Neutral Purple Soil
Authors: YI Shi-lai,HE Shao-lan,DENG Lie,XIE Rang-jin,SHI Xiao-jun
Abstract: We studied the effects of N fertilizer(NF) applications on N absorption and quality of wheat in the representative neutral purple soil of southwest China.The results indicated that when the N application increase within the range of 0~225 kg/ha absorption of nitrogen,the crude protein content of grain,grain yield and stem-leaf yield of wheat will grow tremendously,while the agronomic efficiency and harvest index of nitrogen fertilizer show downtrend.All these prove that N aborbed is mainly contained in stem-leaf,and the removal and burning of straws would cause more N loss.The average utilization rate of NF is 39.6%,among which N application of 75 kg/ha gains the highest was gained.N application would remarkably improve wheat quality,the starch content of wheat grain is highest when NF application is 150 kg/ha. 更多
Key words: Wheat； Purple soil； Nitrogen； Utilization； Yield/ Quality；
文献注录：易时来,何绍兰,邓烈,谢让金,石孝均. 中性紫色土施氮对小麦氮素吸收利用及产量和品质的影响 [J]. 麦类作物学报. 2006, 05: 167-169.
基金: 农业部948重大国际合作项目(2003-Z53);柑桔无病毒繁育体系完善及无公害高效栽培技术开发项目(2005EP090003);柑桔引进良种产业技术配套示范推广项目(2004-C16-01)
报/刊名：《麦类作物学报》，发表于2006 / 第 05 期。
文献类型： [J] （文献级别：核心刊物）
页码：第 167-169 页 / 共3 页