AA

Anhydrous ammonia including aqueous ammonia

ABC

Ammonium bicarbonate

ACl

Ammonium chloride

AF

Ammonium bicarbonate, ammonium chloride, ammonium sulphate

AP

Ammonium phosphate

AN

Ammonium nitrate

AS

Ammonium sulphate

b

Broadcast

bf

Broadcast and then flooded

bw

Broadcast in floodwater

bpi

Broadcast in floodwater at panicle initiation

CAN

Calcium ammonium nitrate and combinations of AN and CaCO3

CEC

Cation exchange capacity

CN

Calcium nitrate

DAP

Diammonium phosphate

ECETOC

European Centre for Ecotoxicology and Toxicology

g

Gradient method

GIS

Geographical Information Systems

i

Incorporated

KCl

Potassium chloride

KN

Potassium nitrate

MAP

Monoammonium phosphate

Mix

Mix of various fertilizers

N

Nitrogen

NF

Calcium nitrate, potassium nitrate, sodium nitrate

NH3

Ammonia

NO

Nitric oxide

NO2

Nitrogen dioxide

NP

Ammonium phosphate and other NP fertilizers

N2

Dinitrogen

N2O

Nitrous oxide

O

Organic fertilizers

OS

Combinations of organic and mineral fertilizers

ppbv

Part per billion in volume

s

Fertilizer applied in solution

single

Single application

single/ps

Single application as part of split application scheme

split

Split application, aggregate

UAN

Urea-ammonium nitrate

UCN

Urea-calcium nitrate

UP

Urea phosphate

UU

Urea and urine

UUP

Urea-urea phosphate