Magaji Ado Mahmoud*, Muhammad Yalwa Gwarzo and Faruk Sarkinfada
Ralph J Johnson III
Maize Yield Response under Various Phosphorus Sources and their Ratios
Waqar Ali, Mukhtiar Ali, Abid Kamal, Muhammad Uzair, Nasr Ullah, Muhammad Daud Khan and Mussaddiq Khan Khalil
Benjamin Matagrin, Abdessalem Hammed, Arnaud Michaux, Ahmed Hodroge, Etienne Benoit and Virginie Lattard