With the increase in volatility of fertiliser prices, it is important that a grassland nutrient programme is cost-effective.
It is essential that the sward comprises of grass species that respond to fertiliser to maximise on-farm profitability. After all, there is little point in applying fertiliser to a sward, which mainly comprises of weed grasses. This is both a waste of money and resource.
The graph (please see left) clearly shows the variance between perennials’ efficiency and the efficiency of common weed grasses when
nitrogen fertiliser is applied.