|本期目录/Table of Contents|

[1]徐达勋,颜振峰.生物炭与根际促生菌对辣椒氮素利用率、产量及土壤氮转化的影响[J].江苏农业科学,2023,51(11):133-139.
 Xu Daxun,et al.Effects of biochar and rhizosphere growth-promoting bacteria on nitrogen use efficiency, yield and soil nitrogen conversion in pepper[J].Jiangsu Agricultural Sciences,2023,51(11):133-139.
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生物炭与根际促生菌对辣椒氮素利用率、产量及土壤氮转化的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第11期
页码:
133-139
栏目:
园艺与林学
出版日期:
2023-06-05

文章信息/Info

Title:
Effects of biochar and rhizosphere growth-promoting bacteria on nitrogen use efficiency, yield and soil nitrogen conversion in pepper
作者:
徐达勋颜振峰
盐城生物工程高等职业技术学校,江苏盐城 224051
Author(s):
Xu Daxunet al
关键词:
生物炭辣椒根际促生菌氮转化氮素利用率(NUE)产量
Keywords:
-
分类号:
S641.306
DOI:
-
文献标志码:
A
摘要:
采用大棚划区试验,设置不施氮肥处理(CK),不施氮条件下施用生物炭和根际促生菌处理(PB),常规施氮处理(NN),常规施氮条件下分别施入根际促生菌处理(NP)、生物炭处理(NB)、根际促生菌+生物炭配施处理(NPB),探索了生物炭与根际促生菌对辣椒氮素利用率、产量及土壤氮转化的影响。结果表明,与CK处理相比,施氮、生物炭、根际促生菌相关处理(NN、NP、NB、NPB)整体提高了辣椒植株的氮素累积量、产量及土壤氮转化,不施氮相关处理(PB、CK)效果相当。在施氮处理中,与NN处理相比,NB、NPB处理均增加了辣椒植株各个器官的氮素累积量,调节了土壤氮代谢酶、提高了生育前期的土壤NO-3-N、NH+4-N含量及土壤硝化螺旋菌属(Nitrospira)、慢生根瘤菌属(Bradyrhizobium)的丰度,整体以NPB处理较高;NPB处理的产量、氮素利用率(NUE)最高,比NN处理分别显著提高9.13%、6.57%。相关分析结果表明,植株氮含量、产量、NUE与土壤氮组分、氮代谢酶存在显著或极显著相关关系。生物炭和根际促生菌的联合施用,可增加辣椒根际土壤中氮功能菌的增殖和调控N转化酶的活性,增加土壤氮的有效性,从而提高辣椒植株的氮含量、产量及氮素利用率。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2022-12-21
基金项目:江苏省现代农业(蔬菜)产业技术体系建设项目(编号:JATS[2021]257)。
作者简介:徐达勋(1969—),男,江苏盐城人,副教授,主要从事园艺技术研究工作。E-mail:xundaxu0118@163.com。
更新日期/Last Update: 2023-06-05