Wet soils and cooler temperatures lead to slower growth and a reduced pasture response, which means nutrients applied at the wrong time are more exposed to loss. Most farmers already understand this. The challenge in winter is deciding when not to act, and which paddocks are worth waiting on.
Prioritise response, not routine
Nutrient efficiency in winter is rarely limited by product choice or rate. It’s limited by whether a paddock can actually respond.
Cold soils, slow growth and elevated moisture all restrict uptake. When response is low, delaying application is often the best option. More efficient returns from nutrient application can be expected when temperatures lift and growth begins to increase. Winter is also not the season for insurance applications. Sustainable nutrient use is about timing inputs to match response – not maintaining routine.
Manage risk areas first
Avoiding these areas during wet periods can improve overall nutrient efficiency more than making changes to inputs. In most cases, refinements to where and when nutrients are applied deliver the biggest gains.
Soil protection pays back in spring
Soil structure often takes the greatest pressure during winter, with impacts showing up later. Compaction reduces drainage, root development and nutrient response well beyond August.
Protecting high-risk paddocks through winter supports faster recovery and better pasture response once growing conditions improve. The objective is not to push winter growth, but to avoid limiting spring performance.
Effluent: lower margin, same principles
Effluent remains a valuable nutrient source, but winter conditions narrow the margin for error.
Lower rates, wider spreading and pausing during extended wet periods help keep nutrients in the root zone. Managed carefully, effluent can support feed supply without increasing environmental risk. Regional rules or consent conditions may also limit how effluent can be applied.
Keep the system steady
Winter decisions affect pasture, soils and feed supply heading into calving. The goal is stability, not production and avoiding pressure points that carry through into early lactation.
Using your Farm Insights Report
Your Farm Insights Report, along with conversations with our Sustainable Dairying Advisor team, can help identify opportunities within your business to improve on-farm efficiency, including how nutrient use in winter use can impact performance.
Reach out to your local field team for support in making confident decisions that align with how your farm already operates.
