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4
Where does Fibrophos come from?
1
What does Fibrophos fertiliser contain?
Plant Nutrient Removal (Units/Acre)* and replacement by Fibrophos
Calcium
Ca
Magnesium
Mg
Sulphur
S
Boron
B
Copper
Cu
Iron
Fe
Manganese
Mn
Zinc
Zn
Barley 3.5t
grain/acre
2.0t straw/acre
18
10
17 0.13 0.11 0.5 0.7 0.27
Wheat 3.5t
grain/acre
2.5t straw/acre
11
21
6
0.14 0.12 2.6 0.5 0.5
Silage
15t/acre
@20% DM
36
9
9
0.03 0.03 1
0.6 0.3
Hay 3t/acre
@ 85%DM
20
6
6
0.02 0.02 0.6 0.6 0.3
Potatoes
2.5t/acre
8
15
5
0.12 0.1 1.3 0.22 0.12
Oilseed Rape
1.2t/acre
9
6
24*
0.28 0.06 n/a 0.6 0.28
Fibrophos
applied at
9.2t/acre
(4 bags/acre)
59
13
13 0.06 0.2 1.6
1
1.2
*48 units/acre sulphur required at end of flowering
*Adapted from a) Simpson 1986 b) John Archer ‘Crop Nutrition and Fertiliser Use’