Weeds and crops leaf C,N,S content

Leaf Nitrogen, Carbon and Sulfur content from weeds and crops (wheat, barley, oilseed rape, pea) growing in an agronomical experiment in NE France Taxonomic coverage: Poacea, Fabaceae, Brassicaceae, Polygonaceae, Asteraceae, Chenopodiaceae, Convolvulaceae, Rubiaceae Field list: Species, Latitude, Longitude, Altitude, Sampling date, Exposition, Health status, Physiological leaf age, Canopy position, surface, SLA, LDMC, LNC, LCC, LSC, C/N, C/S, Comment