Author
International Potash Institute
3
Colloquium of the International Potash Institute (
2
Abd. Razid Hj. Mohamed
1
Abruna, Fernando
1
American Society of Agronomy
1
Brady, N. C.
1
Congress of the International Potash Institute (
1
Fazidah Naziri
1
Great Britain. Ministry of Agriculture, Fisheries and Food
1
Great Britain. National Agricultural Advisory Service
1
Grewal, J. S.
1
International Conference on Phosphorus and Potassium in the Tropics (
1
International Institute of Tropical Agriculture
1
International Potash Institute Colloquium (
1
International Potash Institute. Scientific Board
1
Japanese Potassium Congress (
1
Japanese Potassium Symposium (
1
Kali Kenkyu Kai
1
Kanwar, J. S.
1
Kilmer, V. J.
1
Lugo-Lopez, M. A.
1
Mohamad Hashim Ahmad Tajudin
1
Norhisham Ramli
1
Persatuan Sains Tanah Malaysia
1
Potassium Workshop
1
Puspharajah E.
1
Sabariah Mahadi
1
Sharifuddin Hj. Abdul Hamid
1
Younts, S. E.
1