Stabiele Humus en de Interprovinciale Calha-Humusproeven, 1943-1947. (with English summary) Verslagen van Landbouwkundige Onderzoekingen, no. 56.12. [Monograph]
Kortleven, Jac. \ 1950
Europe - Netherlands
Informe al Gobierno de la Republica Dominicana Sobre la Fertilidad de Sus Suelos. FAO/59/3/1505 [Monograph]
Kortleven, J. \ 1959
soil fertility - agriculture - soil analysis - Dominican Republic
Check title to add to marked list

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.