A new nitrogen index for assessment of nitrogen management of andean mountain cropping systems of ecuador
- Escudero, L.
- Delgado, J.A.
- Monar, C.
- Valverde, F.
- Barrera, V.
- Alwang, J.
ISSN: 1538-9243, 0038-075X
Year of publication: 2014
Volume: 179
Issue: 3
Pages: 130-140
Type: Article