Afficher la notice abrégée

Tillage and phosphorus fertilization effects on the distribution and architecture of corn root

hal.structure.identifierAgriculture and Agri-Food [AAFC]
hal.structure.identifierDepartment of Soils and Agri-Food Engineering
dc.contributor.authorLI, Haixiao
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOREL, Christian
hal.structure.identifierAgriculture and Agri-Food [AAFC]
dc.contributor.authorZIADI, Noura
hal.structure.identifierAgriculture and Agri-Food [AAFC]
dc.contributor.authorSHI, Yichao
dc.date.accessioned2024-04-08T11:59:42Z
dc.date.available2024-04-08T11:59:42Z
dc.date.issued2015
dc.date.conference2015-10-06
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196015
dc.description.abstractEnNo-tillage (NT) is an agricultural practice recommended in context of conservation agriculture. The NT management is widely used under various cropping systems and could modify the physico-chemical and biological properties of the soil including phosphorus (P) stratification along soil profile. Consequently, root development and morphology of crops could be modified. The objective of this study was to investigate the effects of different tillage and P fertilization rates on corn (Zea mays, L.) root distribution and morphology. A field experiment was established in 1992 (Ziadi et al. 2014) on a clay loam soil in the L’Acadie research center of Agriculture and Agri-Food Canada. It is a completely randomized split-plot design (four replicates) in which main factor is soil tillage (moldboard plow (MP) and no-till (NT)) and sub-plot factor is P fertilization (0 (0P), 17.5 (1P) and 35 (2P) kg P ha-1 applied every two years). Soil is under a corn-soybean rotation. After 22 years of experimentation, soils and roots were sampled at silking stage by collecting 8-cm diameter soil cores to a depth of 40 cm at 5 cm, 15 cm and 25 cm perpendicularly to the corn row. Cores were then cut out at 0-5, 5-10, 10-20, 20-30 and 30-40 cm. After washing and sieving, root weight, length and surface area of primary (diameter >0.08 cm), secondary (0.02< diameter< 0.08 cm) and tertiary (diameter < 0.02 cm) roots were determined with the software WinRHIZO. After air-drying and sieving (<0.02mm), soil P status was assessed by soil solution phosphate ions concentration (Cp) in suspensions.
dc.language.isoen
dc.title.enTillage and phosphorus fertilization effects on the distribution and architecture of corn root
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.titleISSR-9 Roots down under: belowground solutions to global changes
bordeaux.countryAU
bordeaux.conference.cityCanberra
bordeaux.peerReviewedoui
hal.identifierhal-02739923
hal.version1
hal.invitednon
hal.conference.organizerInternational Society of Root Research (ISRR). INT.
hal.conference.end2015-10-09
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02739923v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.date=2015&amp;rft.au=LI,%20Haixiao&amp;MOLLIER,%20Alain&amp;MOREL,%20Christian&amp;ZIADI,%20Noura&amp;SHI,%20Yichao&amp;rft.genre=conference


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée