干旱区生态环境知识资源中心(Arid): Humate application alters microbiota-mineral interactions and assists in pasture dieback recovery

Arid

DOI	10.1016/j.heliyon.2023.e13327
	Humate application alters microbiota-mineral interactions and assists in pasture dieback recovery
	Whitton, Maria M.; Ren, Xipeng; Yu, Sung J.; Irving, Andrew D.; Trotter, Tieneke; Bajagai, Yadav S.; Stanley, Dragana
通讯作者	Stanley, D
来源期刊	HELIYON
EISSN	2405-8440
出版年	2023
卷号	9 期号:2
英文摘要	Pasture dieback is a rapidly expanding decaying pasture syndrome that affects millions of hectares of agricultural land in Queensland, Australia, making it useless for the cattle industry and decimating farmers' income and welfare. Since the syndrome was first identified in the early 1990s, farmers and agronomists have tried various methods for pasture recovery, including slashing, burning, ploughing and resowing grass, fertilising, destocking, and overstocking. In most cases, after a minimal initial improvement, the grass reverts to dieback within a few weeks. Here, we present an application of potassium humate, a well-known plant growth stimulator, as a possible long-term recovery option. Humate was applied once at the rate of 12 ml per m2. Humate application did not alter the alpha or beta diversity of soil bacterial communities, nor did it change the mineral profile in the soil. However, humate application altered soil microbiota-mineral temporal interactions and introduced subtle changes in the microbial community that could assist pasture recovery. A single humate application increased paddock plant biomass significantly up to 20 weeks post-application. Eleven months after the single application, the paddock was grazed to the ground by the cattle just before the rainfall season. After pasture regrowth, the humate-treated plots significantly improved root morphometric indicators for both grass and dicots and increased the ratio of grass/weeds by 27.6% compared to the water-treated control. While this treatment will not resolve the dieback syndrome, our results invite more research to optimise the use of humate for maximum economic benefit in paddock use under pasture dieback syndrome conditions.
英文关键词	Desertification Pasture Soil Soil microbiota Humate Humic Cattle
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000968500000001
WOS关键词	SP NOV. ; SOIL ; ABUNDANCE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396803
推荐引用方式 GB/T 7714	Whitton, Maria M.,Ren, Xipeng,Yu, Sung J.,et al. Humate application alters microbiota-mineral interactions and assists in pasture dieback recovery[J],2023,9(2).
APA	Whitton, Maria M..,Ren, Xipeng.,Yu, Sung J..,Irving, Andrew D..,Trotter, Tieneke.,...&Stanley, Dragana.(2023).Humate application alters microbiota-mineral interactions and assists in pasture dieback recovery.HELIYON,9(2).
MLA	Whitton, Maria M.,et al."Humate application alters microbiota-mineral interactions and assists in pasture dieback recovery".HELIYON 9.2(2023).