PDF《灌溉和旱作条件下腐植酸复合肥对小麦生理 特性及产量的影响*》

中国生态农业学报

2009 年9月第17 卷第5期Chinese Journal of Eco-Agriculture, Sept.

2009, 17(5): 900?904 * 国家高技术研究发展计划(863 计划)项目(2003AA217022)和山东省教育科技计划项目(J07yF05)资助 ** 通讯作者: 史春余(1964~), 男, 博士, 教授, 主要从事作物生理生态研究.E-mail: scyu@sdau.edu.cn 梁太波(1981~), 男, 博士研究生, 主要从事作物高产优质生理生态研究.E-mail: taibol@163.com 收稿日期: 2008-09-10 接受日期: 2008-12-03 DOI: 10. 3724/SP.J.1011.2009.00900 灌溉和旱作条件下腐植酸复合肥对小麦生理 特性及产量的影响* 梁太波 1,2 王振林

1 刘娟1陈晓光

1 史春余 1** (1. 山东农业大学农学院 作物生物学国家重点实验室 泰安 271018;

2. 中国烟草总公司郑州烟草研究院 郑州 450001) 摘要为探讨不同供水条件下腐植酸复合肥对小麦的生物学效应, 研究了腐植酸复合肥在灌溉和旱作两种 条件下对小麦生理特性和产量的影响.结果表明, 两种供水条件下, 腐植酸复合肥均可显著提高 0~20 cm 和20~40 cm 土层小麦根系鲜重和根系活力, 促进根系生长发育.腐植酸复合肥处理明显提高了小麦灌浆后期旗 叶实际光化学效率(φPS ) Ⅱ 和光合电子传递速率(ETR), 尤以旱作条件下增加幅度较高. 腐植酸复合肥处理小麦 旗叶 SOD 活性明显提高, MDA 含量降低, 有利于提高小麦活性氧清除能力, 延缓衰老.与化肥处理相比, 腐 植酸复合肥处理小麦穗数和穗粒数增加, 产量显著提高, 且旱作小麦的增产幅度(10.26%)大于灌溉小麦 (7.77%).表明旱作条件下, 腐植酸复合肥对小麦生理特性的改善作用更好, 增产幅度更大. 关键词 小麦 腐植酸复合肥 旱作 灌溉 中图分类号: S141;

S512 文献标识码: A 文章编号: 1671-3990(2009)05-0900-05 Effect of humate compound fertilizer on physiological characteristics and yield of wheat under irrigated and rain-fed conditions LIANG Tai-Bo1,2 , WANG Zhen-Lin1 , LIU Juan1 , CHEN Xiao-Guang1 , SHI Chun-Yu1 (1. College of Agronomy, Shandong Agricultural University;

State Key Laboratory of Crop Biology, Tai'

an 271018, China;

2. Zhengzhou Tobacco Research Institute, China National Tobacco Corporation, Zhengzhou 450001, China) Abstract The effects of humate compound fertilizer on physiological characteristics and yield of wheat were studied in an experi- ment under irrigated and rain-fed conditions. The results show that humate compound fertilizer significantly increases root fresh weight and vigor of wheat both in the 0~20 cm and 20~40 cm soil layers, promoting root growth in these layers. Humate compound fertilizer increases wheat flag leaf φ PSⅡ and ETR at late filling stage, especially under rain-fed condition. Wheat flag leaf SOD activity increases while MDA content decreases under the application of humate compound fertilizer, resulting in increased active oxygen scavenging ability of wheat. Compared with inorganic fertilizer treatment, spike number and kernel number as well as wheat yield are increased by humate compound fertilizer application. Yield increases by 10.26% under rain-fed condition, which is higher than the 7.77% increase under irrigated condition. This indicates that the application of humate compound fertilizer under rain-fed condition leads to improvements in the physiological characteristics and yield of wheat. Key words Wheat, Humate compound fertilizer, Rain-fed condition, Irrigated condition (Received Sept. 10, 2008;