SOIL PREPARATION

ABBREVIATIONS, ACRONYMS AND SYMBOLS

K

potassium

KCl

potassium chloride

kg/m 3

kilogram per cubic meter

kPa

kilo Pascal

K L

saturated hydraulic conductivity

s

litre

kW

kilo Watt

m

meter

m 3 Mg

cubic meter magnesium

Mg ++

magnesium ions

MgCO

magnesium carbonate

3

mm

millimeter

Mo

molybdenum

mS/m

milli Siemens per meter

N

nitrogen sodium

Na

Na + n.d. NH

sodium ions

not dated

+

ammonium ions

4

P

phosphorous

pH

negative logarithm of hydrogen activity

pH H 2 O

pH measured in a water

pH

pH measured in potassium chloride

KCl

PVC

polyvinyl chloride

r

correlation coefficient electrical resistance

R

R s R 2

electrical resistance of a saturated soil paste

coefficient of determination sodium adsorption ratio

SAR

t

tonne

t/ha

tonne per hectare

USDA

United States Department of Agriculture

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