SunBoost for Oilseed Rape
Sunboost is urea solution
stabilised with calcium chloride. Standard urea solutions lose N in the
ammonium form, this occurs even under cooler conditions in the morning or
evening but is greater at higher temperatures. By reducing this loss the plant
is able to utilise the N in Sunboost more efficiently thus reducing the rate
required.
Oilseed rape crops have as much Ca in the seed as Mg approx 2.5kg per
tonne but total offtake of Ca in seed and stubble is approximately 3x higher than
Mg and 2x higher than S.
By strengthening cell walls
Calcium reduces levels of transpiration, combined with chloride which helps
cells to hold water the resistance of the plant to drought is increased
Calcium applied to the crop at
grain fill also helps to redirect the products of photosynthesis into the grain
Calcium applied with nitrogen increases nitrogen use efficiency by more
rapid absorption, greater metabolite deposition in seeds and possibly increases
in photosynthesis.