What's my most cost-effective option?
New Zealand research has shown that the best yielding paddocks on a dairy farm produce double the annual drymatter yield of the worst paddocks6. This pasture yield variation is due to a number of factors including soil fertility, drainage and weed pressure as well as the pasture species.
Growing maize silage on-farm is most economic when you grow a high yielding maize crop in a paddock that was producing not much pasture. For this to occur you must first address any drainage, soil fertility or weed issues that were limiting pasture growth.
6Alvaro Romera, DairyNZ, Personal Communication