CommunicationsMediaMay 2022
Video: How to use fertiliser N successfully – Lee Menhennett, Incitec Pivot Ltd.
At what price is there a place for bagged N in pastures (beef/cattle)?
- If additional nitrogen is being supplied as fertiliser – what application rates should be used, how many applications per year, when should these applications occur (timing, growing conditions) and which pastures should be targeted?
- Is there any role for using soil testing to monitor N levels in pastures and, if so, how do we make it accurate?
- What are the environmental implications of increasing nitrogen levels in a perennial pasture system and how to minimise them? N losses, denitrification, leaching.
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Video: Maximising legume N contribution in mixed pastures- Dr Belinda Hackney, NSW DPI
How much N do we get from clovers and when?
- If relying on legumes in the pasture system to supply the required nitrogen, how can nitrogen fixation be maximised?
- If using both N fertiliser and clover, what rules apply to maximise production & profit?
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Video: How to maximise the potential gains from N in perennial pasture systems? – Lisa Warn, Ag Consulting
How important is nitrogen in terms of improving pasture growth?
- Pasture nitrogen requirements – how much is needed?
- N cycle - when is N supplied & when is it deficient? How do clovers and organic nitrogen fit into the cycle?
- What is the speed of the N cycle through mineralisation and what affects this rate?
- What yield advantage can be gained by supplying more nitrogen to perennial pastures?
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