28 / 52
26
Key points
•
Improves palatability and helps maintain healthy pastures
•
Better performing stock
•
Healthier crops
•
Improves feed value of grass
General background notes on sodium:
•
Uptake of sodium is stimulated by applications of nitrogen
•
Deficiencies occur when herbage levels fall below 0.15% Na
•
Feeding standards recommend not less than 0.15% Na in dietary dry
matter for milking cows and 0.3 to 0.5% for optimum palatability
Conversion:
[Convert Na to Na
2
O x 1.35]
Secondary Elements in Fibrophos
5
Cumulative Dry Weight
Fibrophos can be seen to yield
as well as equivalent applications
of TSP and MOP and to become
available to the crop at an early
stage of growth.
Fibrophos increased the uptake of
sodium particularly at the second
cut for the lower application rate
and for both rates in the third cut.
The sodium uptake in the grass was
decreased by addition of TSP/ MOP.
This was more pronounced at the
higher rates of application.
Fibrophos maintained sodium
levels in grass well above the levels
of 0.15% Na at which dietary
deficiency in grazing animals is a
concern. The total uptake in the
grass of sodium was significantly
greater when Fibrophos was used.