2
1
50
Towards efficient utilization of nitrogen based fertilizers
Haruna, Ahmad Osumanu
Primary Author
mixed material
9789673444076
MALAYSIA
Penerbit Universiti Kebangsaan Malaysia (UKM)
2017
TOWARDS_EFFICIENT_UTILIZATION_OF_NITROGEN_BASED_FERTILIZERS.jpg.jpg.jpg
Humic substances and urea use in agricultures
Haruna, Ahmad Osumanu
Primary Author
mixed material
9789673444069
MALAYSIA
Penerbit Universiti Kebangsaan Malaysia (UKM)
2014
HUMIC_SUBSTANCES_AND_UREA.jpg.jpg.jpg