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RAMOS M1

•2·3.4, ALBRECHT A2, BRAVIN MN3, MARION 01, TODOROFF P4, VERSIN! A3, THURIES L3

1eRcane, France; 21RD UMR Eco&sols, France; 3CIRAD UPR Recyclage et risque, France; 4CIRAD UPR AIDA, France

CONTEXT

• Sugarcane sector is a major pillar of Réunion Island economy

• SERDAF: a tool for sugarcane nutrient management improvement • SERDAF: Expert system based on soil types and soil fertility assesment • Need to update the soil map to improve the nutrient management

INNOVATION: USE OF SOIL INFRARED SPECTRA TO UPDATE THE SOIL MAP Sail classification used on SERDAF

• 3500 soil samples 7 Location, near infrared (NIR) soil spectra, soil chemicals properties, mineralogy

Sketch of Réunion Island soil map updated by NIR spectra clustering

•1 •2 .3 4 •s .6 .7 8 9 10 11 12 0 10 20 km PERSPECTIVES

SERDAF N and p fertiliser recommendations could be

improved by the update of (Ph.D of M. RAMOS, 201s-2021):

Soil map

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Références

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