Enhanced biological N2 fixation and yield of faba bean (Vicia faba L.) in an acid soil following biochar addition: dissection of causal mechanisms

Van Zwieten L; Rose T; Herridge D; Kimber S; Rust J; Cowie A; Morris S

Enhanced biological N2 fixation and yield of faba bean (Vicia faba L.) in an acid soil following biochar addition: dissection of causal mechanisms

dc.citation.issue	1-2
dc.citation.volume	395
dc.contributor.author	Van Zwieten L
dc.contributor.author	Rose T
dc.contributor.author	Herridge D
dc.contributor.author	Kimber S
dc.contributor.author	Rust J
dc.contributor.author	Cowie A
dc.contributor.author	Morris S
dc.contributor.editor	Lehman J
dc.date.accessioned	2024-07-12T00:47:50Z
dc.date.available	2024-07-12T00:47:50Z
dc.date.issued	2015-10
dc.description.abstract	Background and aims: Acid soils constrain legume growth and biochars have been shown to address these constraints and enhance biological N2 fixation in glasshouse studies. A dissection of causal mechanisms from multiple crop field studies is lacking. Methods: In a sub-tropical field study, faba bean (Vicia faba L.) was cultivated in rotation with corn (Zea mays) following amendment of two contrasting biochars, compost and lime in a rhodic ferralsol. Key soil parameters and plant nutrient uptake were investigated alongside stable 15 N isotope methodologies to elucidate the causal mechanisms for enhanced biological N2 fixation and crop productivity. Results: Biological N2 fixation was associated with plant Mo uptake, which was driven by reductions in soil acidity following lime and papermill (PM) biochar amendment. In contrast, crop yield was associated with plant P and B uptake, and amelioration of soil pH constraints. These were most effectively ameliorated by PM biochar as it addressed both pH constraints and low soil nutrient status. Conclusions: While liming resulted in the highest biological N2 fixation, biochars provided greater benefits to faba bean yield by addressing P nutrition and ameliorating Al toxicity.
dc.description.confidential	false
dc.edition.edition	October 2015
dc.format.pagination	7-20
dc.identifier.citation	Van Zwieten L, Rose T, Herridge D, Kimber S, Rust J, Cowie A, Morris S. (2015). Enhanced biological N<inf>2</inf> fixation and yield of faba bean (Vicia faba L.) in an acid soil following biochar addition: dissection of causal mechanisms. Plant and Soil. 395. 1-2. (pp. 7-20).
dc.identifier.doi	10.1007/s11104-015-2427-3
dc.identifier.eissn	1573-5036
dc.identifier.elements-type	journal-article
dc.identifier.issn	0032-079X
dc.identifier.uri	https://mro.massey.ac.nz/handle/10179/70159
dc.language	English
dc.publisher	Springer Nature
dc.publisher.uri	https://link.springer.com/article/10.1007/s11104-015-2427-3
dc.relation.isPartOf	Plant and Soil
dc.rights	(c) 2015 The Author/s
dc.rights	CC BY 4.0
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	Boron
dc.subject	Rhodic ferralsol
dc.subject	Field assessment
dc.subject	Lime
dc.subject	Compost
dc.subject	Molybdenum
dc.subject	Natural 15N isotope abundance
dc.subject	Phosphorus
dc.title	Enhanced biological N2 fixation and yield of faba bean (Vicia faba L.) in an acid soil following biochar addition: dissection of causal mechanisms
dc.type	Journal article
pubs.elements-id	459368
pubs.organisational-group	Other