Contributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systems

Simple item page
cg.contributor.affiliationInternational Center for Tropical Agricultureen
cg.creator.identifierNgonidzashe Chirinda: 0000-0002-4213-6294en
cg.identifier.doihttps://doi.org/10.1111/sum.12427en
cg.isijournalISI Journalen
cg.issn0266-0032en
cg.issue3en
cg.journalSoil Use and Managementen
cg.reviewStatusPeer Reviewen
cg.subject.ciatSOIL INFORMATIONen
cg.volume34en
dc.contributor.authorCórdoba, Eva Maríaen
dc.contributor.authorChirinda, Ngonidzasheen
dc.contributor.authorLi, F.en
dc.contributor.authorOlesen, Jørgen E.en
dc.date.accessioned2018-07-04T19:07:27Zen
dc.date.available2018-07-04T19:07:27Zen
dc.identifier.urihttps://hdl.handle.net/10568/95869
dc.titleContributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systemsen
dcterms.abstractThis study investigates the effect of different crop rotation systems on carbon (C) and nitrogen (N) in root biomass as well as on soil organic carbon (SOC). Soils under spring barley and spring barley/pea mixture were sampled both in organic and conventional crop rotations. The amounts of root biomass and SOC in fine (250–253 μm), medium (425–250 μm) and coarse (>425 μm) soil particulate organic matter (POM) were determined. Grain dry matter (DM) and the amount of N in harvested grain were also quantified. Organic systems with varying use of manure and catch crops had lower spring barley grain DM yield compared to those in conventional systems, whereas barley/pea showed no differences. The largest benefits were observed for grain N yields and grain DM yields for spring barley, where grain N yield was positively correlated with root N. The inclusion of catch crops in organic rotations resulted in higher root N and SOC (g C/m2) in fine POM in soils under barley/pea. Our results suggest that manure application and inclusion of catch crops improve crop N supply and reduce the yield gap between conventional and organic rotations. The observed positive correlation between root N and grain N imply that management practices aimed at increasing grain N could also increase root N and thus enhance N supply for subsequent crops.en
dcterms.accessRightsOpen Access
dcterms.available2018-07-03en
dcterms.bibliographicCitationCórdoba, E. M., Chirinda, Ngonidzashe, Li, F., & Olesen, J. E. (2018). Contributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systems. Soil Use and Management, 34(3): 335-342.en
dcterms.extent335-342en
dcterms.issued2018-09en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectrootsen
dcterms.subjectraícesen
dcterms.subjectcrop rotationen
dcterms.subjectrotación de cultivosen
dcterms.subjectcatch cropsen
dcterms.subjectcultivos intermediosen
dcterms.subjectlow input systemen
dcterms.subjectcropping systemsen
dcterms.subjectsistemas de cultivosen
dcterms.typeJournal Article

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Manuscript - Contributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systems.pdf
Size:
446.22 KB
Format:
Adobe Portable Document Format
Description:
Author's version
Download

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIAT Articles in Journals
CIAT Soils