[1]王桂花,吴敏,王大鹏,等.接种根瘤菌对橡胶树‖葛藤模式下土壤氮含量及氮转化相关酶活性的影响[J].江苏农业科学,2024,52(17):239-245.
 Wang Guihua,et al.Impacts of inoculating rhizobium on soil nitrogen content and nitrogen conversion related enzyme activity of rubber-kudzu intercropping system[J].Jiangsu Agricultural Sciences,2024,52(17):239-245.
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接种根瘤菌对橡胶树‖葛藤模式下土壤氮含量及氮转化相关酶活性的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第52卷
期数:
2024年第17期
页码:
239-245
栏目:
资源与环境
出版日期:
2024-09-05

文章信息/Info

Title:
Impacts of inoculating rhizobium on soil nitrogen content and nitrogen conversion related enzyme activity of rubber-kudzu intercropping system
作者:
王桂花1; 吴敏1; 王大鹏1; 林清火1; 2; 林琛茗1; 詹杉1; 张先1; 陈传洋1; 周永计1
1.中国热带农业科学院橡胶研究所/省部共建国家重点实验室培育基地-海南省热带作物栽培生理学重点实验室,海南海口 571101; 2.儋州橡胶林土壤环境海南省野外科学观测站,海南儋州 571737
Author(s):
Wang Guihua; et al
关键词:
橡胶; 间作; 葛藤; 土壤氮素; 土壤酶活性
Keywords:
-
分类号:
S344.2
DOI:
-
文献标志码:
A
摘要:
探究接种根瘤菌条件下减施氮肥对橡胶树‖葛藤间作模式下土壤无机氮含量和氮转化相关酶活性的影响,以期为橡胶园氮肥减量施用提供技术支撑。在幼龄橡胶园中,以正常施氮水平下不间作葛藤和间作葛藤不接种根瘤菌分别作为对照CK1、CK2;以间作接种根瘤菌条件下,施100%、75%、50%氮肥水平分别为试验处理T100、T75、T50。均匀取0~40 cm土壤样品,采用单因素分析法分析胶园土壤不同土层(0~10、10~20、20~30、30~40、0~40 cm)硝态氮、铵态氮含量,以及脲酶、硝酸还原酶、亚硝酸还原酶、羟胺还原酶活性的变化特征。结果表明,与CK1和CK2相比,T100、T75、T50处理在0~10、10~20 cm土层的铵态氮含量提高11%以上,硝态氮含量提高23%以上,其中T50处理提高幅度最大;T50处理在0~10、10~20 cm土层中氮转化相关的硝酸还原酶、亚硝酸还原酶和脲酶活性均最高,羟胺还原酶活性最低;与CK1和CK2相比,T50处理下的硝酸还原酶和亚硝酸还原酶活性提高9%以上。相关性分析结果表明,不同处理下土壤氮含量与硝酸还原酶和亚硝酸还原酶活性呈显著正相关,与羟胺还原酶活性呈显著负相关,与脲酶活性相关不显著。隶属函数综合分析结果表明,T50处理的平均隶属函数值最大,对土壤氮含量和氮转化相关酶活性促进效果最佳。综上,在橡胶树‖葛藤间作模式下采用接种根瘤菌和减施50%氮肥的措施处理能显著提高表层土壤氮素供应和周转能力。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2023-10-08
基金项目:海南省自然科学基金(编号:320QN349)。
作者简介:王桂花(1989—),女,海南昌江人,硕士,助理研究员,主要从事作物营养与施肥研究。E-mail:guihuawang77@163.com。
通信作者:吴敏,博士,副研究员,主要从事土壤资源管理和植物营养研究。E-mail:wuminhainan@sina.com。
更新日期/Last Update: 2024-09-05