SunBoost for Malting Barley
Can be used to
boost N levels of high N malting barleys and protein levels of milling wheats
Foliar
application allows growers to adjust the crop nitrogen more readily than
granular nitrogen
Is taken up rapidly
by the plant €“ no waiting for N to be absorbed through the roots
Supplements
granular fertiliser, making it easier to achieve desired N/protein levels
without using excess fertiliser
Foliar applied
urea after awn emergence increased grain protein more effectively than
broadcast ammonium nitrate
The addition of
calcium with nitrogen results in increased N absorption, grain yield, tiller
formation, dry matter and grain weight per unit of dry matter
Application of
calcium apparently causes foliar metabolites to be re-directed to the grain.
Maximum effects on tillering were gained when calcium was applied at jointing
(GS 31) and on grain yields when applied at boot stage (GS 45)
Calcium applied
with nitrogen increases nitrogen use efficiency by more rapid absorption,
greater metabolite deposition in seeds and possibly increases in photosynthesis
After anthesis N
uptake by roots ceases and most of the N required for grain growth is
translocated from vegetative parts. Leaf proteins may be hydrolysed resulting
in decreases in the amount and activity of photosynthesis
Adding calcium to
cereals appears to improve the ability of the plant to move metabolites out of
the flag leaf and into grain
Applying foliar N
allows N levels to be increased without the risks of lodging created by higher
levels of soil applied N
Foliar applied
urea and calcium increase the plants resistance to disease
In order to utilise N plants must have
sufficient S for every 10k N applied
Because Sunboost
is stabilised it is more efficient than urea solutions: 50l/ha applies 11.5k N
but is equivalent to applying 200l/ha standard urea. ( 40kN)
RECOMMENDATIONS
Barley: Apply
25-30l/ha SunBoost as required
Wheat: To boost
protein levels apply 50l/ha SunBoost from GS 45
Sulphur: Apply 1
k Sulphur 95 per 10k nitrogen