Handbook for Irrigation of Wine Grapes in South Africa

Abbreviations, acronyms and symbols

Fe

: iron

: ferrous iron : ferric iron

Fe 2+ Fe 3+

: iron hydroxide

Fe(OH)

2

g

: gram

GDD

: growing degree days

H

: hydrogen : hectare : mercury

ha

Hg

SO

: sulphuric acid : bicarbonate

H

2

4

HCO

3-

HI

: heliothermal index

i.e.

: id est

Ig

: canopy conductance index

K K

: potassium

: unsaturated hydraulic conductivity

: crop coefficient

k k

c

: basal crop coefficient : extractable potassium : soil evaporation coefficient : saturated hydraulic conductivity

cb

K

ex

k

s

K

s

KCl kPa

: potassium chloride

: kilo Pascal : Linnaeus

L.

: litre



LASER

: light amplification by stimulated emission of radiation

LED

: light emitting diode : leaching fraction

LF

LSD

: least significant difference

LVDT

: linear variable differential transformer

: cubic meter

m 3

MFT

: mean February temperature

Mg

: magnesium

: magnesium chloride

MgCl

2

mg M  Mn Mo

: milligram : mega litre : manganese : molybdenum : mega Pascal

MPa

N

: nitrogen : sodium

Na

NaCl

: sodium chloride : extractable sodium

Na NH NH NO NO

ex

: ammonium : ammonia

+

4

3

: nitrite : nitrate

-

2

-

3

308 ABBREVIATIONS, ACRONYMS AND SYMBOLS