Amiotti, N. M. | Zalba, P. | Schmidt. E. S. | Galantini, J. A. Essential nutrients in soil humic and fulvic acids under different land use systems 2017 - Pisa University Press Is part of Agrochimica : International Journal of Plant Chemistry, Soil Science and Plant Nutrition of the University of Pisa : 61, 4, 2017 Permissions Download Copy/paste Printing Download | Copy/paste | Printing EUR 10.00 VAT Excluded Purchase Read Online PDF a Article