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Q99. How quickly does nitrogen volatilise from applied urea?
Nitrogen from urea can begin volatilising within 24–48 hours after dissolving, especially under warm, windy conditions and on wet soils that are drying.

Q97. How much nitrogen does organic matter release over the season, and how quickly does it become available?
Organic matter can release around 39 kg/ha of nitrogen per year under typical conditions, with availability depending on temperature, moisture, and microbial activity.

Q95. How much nitrogen does a green manure (vetch) crop contribute to the soil?
Green manure vetch crops can contribute around 154 kg/ha of nitrogen to the soil, with fixation strongly linked to biomass production and rainfall.

Q94. How does my fertiliser strategy change after the soil is mechanically ameliorated? i.e. plozza, spading, etc?
After mechanical soil amelioration, fertiliser needs may rise due to higher yield potential and nutrient redistribution, so updated soil testing is essential to guide nitrogen,

Q93. How can I use a yield map to make a phosphorus recommendation?
Use yield maps to calculate phosphorus removal and set replacement rates or create variable rate maps, but always consider soil tests and PBI to fine-tune

Q92. How much nutrient is exported from the paddock after a bumper year?
A bumper grain harvest removes significant nutrients from the soil – e.g. wheat removes ~20 kg N/t and canola ~40 kg N/t – so adjusting
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Explore a range of helpful tools designed to simplify soil management, from interactive calculators to step-by-step guides tailored to your farming needs.
Evaluating Tyne Spacing and Interaction in Soil Amelioration
Explore how evaluating tyne spacing and interaction can optimise soil amelioration practices, improve soil health, reduce compaction, and significantly enhance crop performance and profitability.
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Optimising Soil Amelioration – Comparing Tynes for Effective Ripping
Learn practical tips on optimising your tyne setup and ripping techniques. Explore how strategic adjustments can enhance soil condition, crop growth, and overall farm profitability.
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Optimising Tyne Setup – Rethinking Ripping for Better Returns
Optimising your tyne setup can significantly improve soil health and productivity. Join us as we rethink ripping strategies to unlock better yields and sustainable farming outcomes.
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Grazing Shrubs for Resilient Farming: Lessons from John Arentz
Discover how mixed farmer John Arentz has successfully integrated forage shrubs into his grazing system, improving pasture productivity and drought resilience in the Mallee.
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Navigating Drought: Livestock Management Strategies for Challenging Seasons
Discover essential drought management strategies for sheep farmers, including feed budgeting, containment feeding, and making tough stock decisions during dry seasons.
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Managing Acid Soils in the Mallee
Learn how acid soils impact Mallee farms, the role of lime and gypsum, and practical strategies for long-term soil health and productivity.
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