Research result of Kawamura researcher in Output1 (Development of evaluation techniques and geographical maps of nutrient characteristics) was published on online of international journal "Remote sensing" (http://www.mdpi.com/2072-4292/9/10/1081). This paper clarified a inclusion of waveband selection within modelling improved estimation accuracy of carbon and nitrogen when using diffuse reflectance spectra data on rice fields soils in wide area of Madagascar.