CPR |
Crop Production Region |
FAO |
Food and Agriculture Organization of the United Nations |
f.o.b. |
Free on board |
FYM |
Farm yard manure |
IFA |
International Fertilizer Industry Association |
IMPHOS |
World Phosphate Institute |
Karaz |
Underground channel for irrigation |
Kharif |
Summer crop season: April to September |
NFDC |
National Fertilizer Development Centre |
NFWP |
North West Frontier Province |
PARC |
Pakistan Agricultural Research Council |
Rabi |
Winter crop season: October to March |
SCARP |
Salinity Control and Reclamation Project |
VCR |
Value Cost Ratio |
Zn |
Zinc |
|
|
AS: |
Ammonium sulphate |
CAN: |
Calcium ammonium nitrate |
DAP: |
Diammonium phosphate |
MOP: |
Muriate of potash (potassium chloride) |
NP: |
Compound fertilizer containing nitrogen and phosphate |
NPK: |
Compound fertilizer containing nitrogen, phosphate and potash |
SOP: |
Sulphate of potash |
SSP: |
Single superphosphate |
|
|
N: |
Nitrogen |
P2O5 or P: |
Phosphate* |
K2O or K: |
Potash* |
* Phosphate and potash may be expressed as their elemental forms P and K or as their oxide forms P2O5 and K2O. Nitrogen is expressed as N. In this study phosphate and potash are expressed in their oxide forms.