干旱区生态环境知识资源中心(Arid): Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage

Arid

DOI	10.1017/S0014479719000322
	Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage
	Chen, Danmei; Duan, Yuqi; Jin, Yan; Yang, Yuhong; Yuan, Ling
通讯作者	Yuan, L
来源期刊	EXPERIMENTAL AGRICULTURE
ISSN	0014-4797
EISSN	1469-4441
出版年	2020
卷号	56 期号:2 页码:227-238
英文摘要	Both short- and long-term effects of fertilizers on crops and soils are often studied only in arid or paddy soils, whereas less is known about the long-term effects in paddy-upland rotations, particularly with multiple crops and frequent tillage in subtropical areas. Therefore, an 18-year field experiment was initialized to assess the effects of different types of fertilization (no fertilizer; chemical fertilizer (CF); and manure in combination with CF (MCF)) on yield and soil chemical and microbial properties in a crop rotation involving rice (Oryza sativaL., summer), rapeseed (Brassica campestrisL., winter), tobacco (Nicotiana tabacumL., the following summer), and hairy vetch (Vicia villosaRoth, the following winter). MCF caused higher yields of rapeseed grains and tobacco leaves than CF after 3 or 4 years of implementing the experiment, while rice yields varied little between MCF and CF, with one exception in 2011. Compared with the initial soil properties, providing soil with MCF increased organic matter (OM), while the opposite trend was found with CF. Higher microbial biomasses, enzyme activities, bacterial operational taxonomic units, and richness and diversity indexes of bacterial communities were found in soils receiving MCF, implying the improvement of soil microbial properties in the paddy-upland rotation system with multiple crops and frequent tillage. The experimental soils under varying fertilization were dominated by four bacterial phyla (Proteobacteria,Acidobacteria,Actinobacteria, and unclassified groups), which accounted for approximately 70% of the 16S rDNA sequences. Among the top 20 predominant bacteria, 14 were commonly found in all soil samples irrespective of which fertilizer treatment was implemented. Thus, the presence of those bacteria was stable in the soil and to some extent was influenced by fertilization. Most of them were facultative anaerobic bacteria, which can adapt to both anaerobic paddy soil and aerobic drylands. The dominant bacteria at various taxonomic levels found in soils might reflect multiple soil processes such as OM turnover, nutrient cycling, physical structure formation, and xenobiotic detoxification.
英文关键词	Crop yields Soil enzymes Soil bacteria
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568283900007
WOS关键词	16S RIBOSOMAL-RNA ; BACTERIAL COMMUNITIES ; PHOSPHORUS MINERALIZATION ; DEHYDROGENASE-ACTIVITY ; BLACK SOIL ; DIVERSITY ; PATTERNS ; YIELDS ; MANAGEMENT ; REVEAL
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326190
作者单位	[Chen, Danmei; Yuan, Ling] Southwest Univ, Coll Resources & Environm, 2 Tiansheng Rd, Chongqing 400716, Peoples R China; [Duan, Yuqi; Jin, Yan; Yang, Yuhong] Yunnan Tobacco Agr Res Inst, 33 Yuantong St, Kunming 650031, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Chen, Danmei,Duan, Yuqi,Jin, Yan,et al. Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage[J],2020,56(2):227-238.
APA	Chen, Danmei,Duan, Yuqi,Jin, Yan,Yang, Yuhong,&Yuan, Ling.(2020).Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage.EXPERIMENTAL AGRICULTURE,56(2),227-238.
MLA	Chen, Danmei,et al."Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage".EXPERIMENTAL AGRICULTURE 56.2(2020):227-238.