27 / 52
25
www.fibrophos.co.ukSecondary Elements in Fibrophos
5
Sodium dramatically improves
palatability of grass and helps
to maintain healthy pastures.
Cattle and sheep have been seen
to favour pastures where Fibrophos
is applied and the feed content of
the grass is enhanced.
Sodium
up to 4% as Na
2
0
OBJECTIVE AND METHOD
Levington Agriculture Ltd
Ian Richards
Two rates of Fibrophos were applied to compare the effectiveness of the magnesium
and sodium from Fibrophos against Inorganic fertiliser applied as TSP and MOP and an
untreated control.
Pots were sown under heated glass with lighting. TSP and MOP added at equal rates to
the Fibrophos and each was cut three times.
Sodium uptake
Dry Matter
Grass dry matter increased above
the untreated controls for all
fertiliser treatments. These were
in line with nutrient levels applied
indicating a response in all cases.
DaysAfterApplication
DryWeight (g)
40
50
60
45
55
65
0.8
1.4
2.0
2.6
3.2
3.8
4.4
5.0
5.6
6.2
6.8
DRYMATTER
Fibrophos
TSP/MOP
Untreated
Cumulative uptake
of Sodium
The application of Fibrophos
provides a dramatic increase in
the uptake of sodium. The TSP/MOP
depresses sodium uptake below
that of the unfertilised control.
Days After Application
mg/sodium/pot
40
50
60
0
5
10
15
20
25
30
SODIUM
Fibrophos:
Rate1
Fibrophos:
Rate2
TSP/MOP:
Rate1
TSP/MOP:
Rate2
Untreated