Effects of long-term straw retention on soil microorganisms under a rice–wheat cropping system

酸杆菌 稻草 农学 肥料 厚壁菌 放线菌门 土壤碳 人类受精 生物 化学 微生物 土壤水分 微生物种群生物学 生态学 细菌 遗传学 16S核糖体RNA
作者
Cui Yu,Yong Li,Rongli Mo,Wen Deng,Zhixian Zhu,Dongbi Liu,Xingming Hu
出处
期刊:Archives of Microbiology [Springer Science+Business Media]
卷期号:202 (7): 1915-1927 被引量:26
标识
DOI:10.1007/s00203-020-01899-8
摘要

The objective of this study was to investigate how straw-incorporating practices affect bacterial communities and carbon source utilization capacity under a rice–wheat rotational farming practice in central China. To clarify the effect of long-term straw incorporation in microbial abundance and carbon metabolism, a long-term field experiment was initiated in May 2005 (rice-planting season). Soil bacterial communities were revealed by high-throughput sequencing technology. After ten cycles of annual rice–wheat rotation (2005–2015), 2 M (straw incorporation) and 2 M + NPK (high straw incorporation + chemical fertilizer) treatments had significantly more bacterial phyla compared with CK (non-fertilization) and NPK (chemical fertilizer) treatments. Taxonomic analysis revealed that 2 M and NPK + 2 M treatments had a significantly greater abundance of microbial communities, especially the Gemmatimonadetes, Acidobacteria, Firmicutes, and Actinobacteria. In the NPK versus 2 M, 2 M treatment had a significantly greater abundance of Rozellomycota (P < 0.05). In the NPK + 2 M versus NPK, NPK + 2 M treatment also had significantly greater abundance of Ascomycota (P < 0.05). Principal component analysis (PCA) analysis showed that 2 M treatment was separate from other treatments. Using biolog-ECO method, the metabolic diversity and functional characteristics of microbial communities were used to indicate the ability of microorganisms to utilize carbon source. The carbon utilization ability of soil microorganisms in 2 M + NPK treatment was significantly higher than that of CK treatment (P < 0.05). The utilization ability of carboxylic acids, polymers, and other mixtures of carbon sources in 2 M treatment was higher than those of other treatments. These findings suggest that long-term straw incorporation affects the abundance and carbon utilization ability of soil microorganisms within 0–20 cm soil depths, among which, Gemmatimonadetes, Firmicutes, and Actinobacteria may play crucial roles in bacterial communities and carbon source utilization capacity.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
hp发布了新的文献求助10
1秒前
2秒前
姚世娇完成签到 ,获得积分10
4秒前
FashionBoy应助高手采纳,获得10
5秒前
meng完成签到,获得积分10
6秒前
chennn完成签到,获得积分10
6秒前
8秒前
9秒前
晗月完成签到,获得积分10
9秒前
情怀应助如意枫叶采纳,获得10
10秒前
量子星尘发布了新的文献求助10
12秒前
Akim应助SS采纳,获得10
13秒前
张雷应助清新的夜蕾采纳,获得20
13秒前
chennn发布了新的文献求助10
13秒前
罗一完成签到,获得积分10
15秒前
17秒前
丘比特应助wu采纳,获得10
20秒前
俏皮芷蕊发布了新的文献求助30
20秒前
称心的菲鹰完成签到,获得积分10
21秒前
碧蓝问安发布了新的文献求助10
22秒前
22秒前
打打应助ZZZ采纳,获得10
24秒前
28秒前
呆萌板凳发布了新的文献求助10
28秒前
hp关闭了hp文献求助
29秒前
30秒前
都选C完成签到,获得积分10
31秒前
壮观以松完成签到,获得积分10
31秒前
Liufgui应助郭小宝采纳,获得20
31秒前
heli完成签到,获得积分10
33秒前
如意枫叶发布了新的文献求助10
34秒前
都选C发布了新的文献求助10
35秒前
英俊的铭应助淡烟流水采纳,获得10
36秒前
36秒前
Miracle完成签到,获得积分10
38秒前
42秒前
wu发布了新的文献求助10
42秒前
忧心的听双完成签到,获得积分10
42秒前
Timon完成签到,获得积分10
43秒前
深情安青应助Miracle采纳,获得10
44秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989242
求助须知:如何正确求助?哪些是违规求助? 3531393
关于积分的说明 11253753
捐赠科研通 3270010
什么是DOI,文献DOI怎么找? 1804868
邀请新用户注册赠送积分活动 882084
科研通“疑难数据库(出版商)”最低求助积分说明 809136