Notes: for the N, P, K (and Mg, where quoted) I have normalised the values for 100% N. These figures are shown in small italic type. This seems to me a good way to make easy comparisons between the fertilisers. Information is from the fertiliser package; for Global Orange Groves from their book.
Global Orange Groves
Summer Food for Citrus Trees
UK
Global Orange Groves
Winter Food for Citrus Trees
UK
The Citrus Centre
Citrus Feed
UK
KB
Engrais agrumes
France    Rhone-Poulenc
COMPO
Concime per limone e agrumi ornamentali
Made in Germany for Italy
N
%
P2O5
%
K2O
%
20
100
29
100
25
100
15
60
8
50
7
24
15
60
14
48
1.6
5.5
16
100
10
100
3
9
20
200
5
50
MgO
%
SO3
%
Cu
%
Fe
%
B
%
Mn
%
Mo
%
Zn
%
0.02
12
75
20
100
20
100
'7 essential trace elements at high strength'
'7 essential trace elements at high strength'
'also present trace elements
B,Cu,Fe,Mn,Mo and Zn'
(no trace elements mentioned)
4
25
22
0.1
0.04
0.1
.007
.015
 
 
 
Here are details of the fertilisers I have come across that are specifically for citrus. See notes below.
page modified 8 April 2003
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