LE SOUDER, Christine; DENOROY, Pascal

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

LE SOUDER, Christine
ARVALIS - Institut du végétal [Paris]

DENOROY, Pascal
Interactions Sol Plante Atmosphère [UMR ISPA]

Langue

Autre communication scientifique (congrès sans actes - poster - séminaire...)

Ce document a été publié dans

4th Sustainable Phosphorus Summit, SPS 2014, 2014-09-01, Montpellier. 2014

Résumé en anglais

Phosphorus management at field level must be simple and based on soil test as phosphorus bioavailability plays a prominent role in crop nutrition. It has also to take care of the availability of organic products or manure at farm level. The method proposed by COMIFER since 1993 to interpret soil test is based on a broad dialogue involving researchers as well as agricultural advisors. The method is based on laboratory research results and on a large set of field trials, conducted by all these actors. The interpretation procedure takes into account the crop sensitivity class. It is the major factor which leads the fertilization strategy. It uses two reference thresholds for every soil type and crop class combination. It also takes care of the availability of phosphorus due to fertilizers applications in previous years. The COMIFER method has had several evolution steps and is still nowadays the common basis for the various decision methods used in France. The method is updated by the COMIFER P-K-Mg group and is still evolving to and integrate new references (manure and slurry quality, new organic fertilizers,…) and adapt to new concepts. Present works deal with the use of more mechanistic phosphate dynamics principle to better integrate the role of soil buffer power in fertilizer rate calculation.< Réduire

Métadonnées

Partager cette publication !

Licence d’utilisation du document

The COMIFER method for P fertilization management

Langue

Ce document a été publié dans

Résumé en anglais

URI

Origine

Unités de recherche