STEP COMBI 5000, Instruction Manual

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20
1 8
Salt toleration of plants
Degree of salt
toleration
Plants
EC value for
substrates
(ratio 1:5;
substrate:water)
Max. EC value of
irrigation water,
per mil = tolerable
concentration of
fertilisation
Acceptable
carbonate
hardness
very salt
sensitive plants
Orchids, Nephrolepis
Bromelia, seedings
Propagation, Azalea,
Erica, Calluna
0,2 - 0,3
up to 0,63 EC

0,25 per mil
up to 0,47 EC

0,50 per mil
up to 0,31 EC

0,75 per mil
up to 0,16 EC

1,00 per mil
5
salt sensitive
plants
Azalea, Erica,
Araceen,
all types of young plants
0,4 - 0,6
up to 0,78 EC

0,25 per mil
up to 0,63 EC

0,50 per mil
up to 0,47 EC

0,75 per mil
up to 0,31 EC

1,00 per mil
up to 0,16 EC

1,50 per mil
10
not strongly salt
sensitive plants
Begonia, Cyclamen,
Freesia, Gerbera,
Roses
0,8 - 1 ,0
up to 1,00 EC

0,25 per mil
up to 0,78 EC

0,50 per mil
up to 0,63 EC

0,75 per mil
up to 0,47 EC

1,00 per mil
up to 0,31 EC

1,50 per mil
10 up to max. 15
plants tolerating
higher salt
concentration
Chrysanthemum,
Carnations
1 ,5 - 2 ,0
up to 1,56 EC

0,25 per mil
up to 1,25 EC

0,50 per mil
up to 0,94 EC

0,75 per mil
up to 0,63 EC

1,50 per mil
up to 0.47 EC

1,50 per mil
15