黄腐酸对苜蓿固氮效率及产量的影响研究  

Effects of Fulvic Acid on Nitrogen-Fixation Efficiency and Yield of Medicago Sativa

作　　者：邱小倩 许原原 王若楠 李宝珍[1] 杨金水[1] 袁红莉[1] Qiu Xiaoqian;Xu Yuanyuan;Wang Ruonan;Li Baozhen;Yang Jinshui;Yuan Hongli(College of Biological Sciences,China Agricultural University,Beijing,100193)

机构地区：[1]中国农业大学生物学院,北京100193

出　　处：《腐植酸》2018年第4期33-36,51,共5页Humic Acid

基　　金：国家公益性行业基金"科尔沁沙地苜蓿高效种植技术研究与示范"(项目编号2013048-2)

摘　　要：通过对苜蓿进行喷施黄腐酸或接种根瘤菌(Sinorhizobium meliloti CCBAU01290)处理,比较不同处理对苜蓿固氮效率及其生长的影响。结果发现,喷施黄腐酸或接种根瘤菌显著增加了苜蓿的根瘤数、根瘤鲜重及固氮酶活性;喷施黄腐酸使两年年产量分别增加了29.57%和20.35%,接种根瘤菌则分别增加了10.27%和29.34%。In this study, the effects of fulvic acid and Sinorhizobium meliloti CCBAU01290 on the symbiotic efficiency and growth of alfalfa were investigated. The results showed that fulvic acid spraying or rhizobial inoculation significantly increased the number, fresh weight and the nitrogenase activity of alfalfa nodules. In two consecutive years, the annual yield of alfalfa increased by 29.57% and 20.35% when sprayed with fulvic acid while increased by 10.27% and 29.34% when rhizobia was inoculated.

关 键 词：黄腐酸 苜蓿 固氮效率 产量 

分 类 号：TQ314.1[化学工程—高聚物工业] S963.223.3[农业科学—水产养殖]