Winter is usually when we face our biggest feed deficits in pasture systems. Nitrogen can be used strategically to assist in growing additional dry matter above normal growth rates.
- Identify when you are likely to have a feed de cit and plan ahead to apply nitrogen at appropriate times to enhance dry matter production – something usually overlooked in extensive pastures.
- When using urea and ammonium fertilisers, there may be a lag in availability of nitrate, as these convert to nitrate nitrogen slower in winter.
- Nitrate nitrogen is the primary source for nitrogen in grasses, as it’s taken up quickly by growing pastures.
- Consider Cal-Gran® (granular) and Easy N® (liquid), which contain nitrate nitrogen, and are more likely to be effective in winter conditions.
- Correct grazing management will ensure the nitrogen responses are maximised and animal health issues are avoided.