干旱区生态环境知识资源中心(Arid): Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems

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DOI	10.1007/s10705-019-09977-0
	Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems
	Doolette, Ashlea 1,2; Armstrong, Roger 3,4; Tang, Caixian 4; Guppy, Chris 5; Mason, Sean 1,2,6; McNeill, Ann 1,2
通讯作者	Doolette, Ashlea
来源期刊	NUTRIENT CYCLING IN AGROECOSYSTEMS
ISSN	1385-1314
EISSN	1573-0867
出版年	2019
卷号	113 期号:3 页码:247-266
英文摘要	This field study assessed phosphorus dynamics (crop-P uptake, resin-extractable P in the root-zone, P mobilisation and microbial-P) in break crop-cereal rotation sequences at four Australian semi-arid field sites differing in soil P fertility. Phosphorus mobilisation (9-30kgPha(-1)) was apparent under break crops, consistently under canola and peas at three sites with low soil P fertility (i.e. pre-sowing soil resin-extractableP <20mgPkg(-1)). Enhanced biological cycling of P (i.e. increased microbial-P) was limited to a low P site in the break crop phase. Phosphorus content of break crop aboveground residues following grain removal was 1-7kgPha(-1); P input was greater (12-18kgPha(-1)) where legumes were green/brown manured. Varied residue P input did not result in differences in resin-extractable or microbial-P in soil prior to sowing wheat. Phosphorus uptake was greater for wheat after legume break crops compared to continuous wheat (2.0-4.7kgPha(-1)) at all sites, especially where crops were green/brown-manured (3.9-5.9kgPha(-1)). Greater P uptake by wheat was associated with increased grain yield at three sites but was not significantly correlated with the quantity of P input from break crop residues at all four sites or with soil mineral nitrogen pre-sowing of wheat at three sites. Break crops can directly contribute to P resource-use efficiency by mobilising residual P from soil but the agronomic significance of P supply from break crop residues to a P uptake benefit for following wheat remains to be elucidated.
英文关键词	Crop rotation Legumes Soil-plant P cycling Resin-extractable P Residues Microbial biomass
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000462993000003
WOS关键词	SOIL MICROBIAL BIOMASS ; ORGANIC PHOSPHORUS ; BUFFERING INDEX ; USE EFFICIENCY ; P ACQUISITION ; NITROGEN ; PLANT ; FIELD ; RHIZOSPHERE ; PHOSPHATE
WOS类目	Soil Science
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/2XILL650/217796
作者单位	1.Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia; 2.Univ Adelaide, Waite Res Inst, Glen Osmond, SA 5064, Australia; 3.Grains Innovat Pk, Agr Victoria Res, Private Bag 260, Horsham, Vic 3400, Australia; 4.La Trobe Univ, Ctr AgriBiosci, Dept Anim Plant & Soil Sci, Melbourne Campus, Bundoora, Vic 3086, Australia; 5.Univ New England, Sch Environm & Rural Sci, Precis Agr Res Grp, Armidale, NSW 2351, Australia; 6.Agron Solut, Hindmarsh, SA 5072, Australia
推荐引用方式 GB/T 7714	Doolette, Ashlea,Armstrong, Roger,Tang, Caixian,et al. Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems[J],2019,113(3):247-266.
APA	Doolette, Ashlea,Armstrong, Roger,Tang, Caixian,Guppy, Chris,Mason, Sean,&McNeill, Ann.(2019).Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems.NUTRIENT CYCLING IN AGROECOSYSTEMS,113(3),247-266.
MLA	Doolette, Ashlea,et al."Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems".NUTRIENT CYCLING IN AGROECOSYSTEMS 113.3(2019):247-266.