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154 results found
  • It’s never too early to think about lime
    Soil and Nutrition, 15 Oct 2021
    It’s never too early to think about lime

    Summer lime applications may seem a long way off, but South Australian growers are being urged to plan their lime programs now.

  • Test methods a concern with soil aluminium
    Soil and Nutrition, 20 Sep 2021
    Test methods a concern with soil aluminium

    Aluminium toxicity brought on by acidic soil conditions impairs crop root growth and yield. New research is shedding light on using different laboratory methods to measure aluminium in different soil types, as well as the impact of aluminium on root growth.

  • Research compares alternative lime sources
    Soil and Nutrition, 15 Sep 2021
    Research compares alternative lime sources

    In glasshouse research, limesand and dolomite have outperformed alternative liming products to raise soil pH and improve crop root growth. Lime is also more effective when mixed into the acidic soil layer.

  • Deep treatments put to the test
    Soil and Nutrition, 10 Sep 2021
    Deep treatments put to the test

    By digging deep, two PhD students are exploring the benefits and potential negatives of phosphorus placement

  • Harnessing the short and long-term effects of gypsum
    Soil and Nutrition, 29 Aug 2021
    Harnessing the short and long-term effects of gypsum

    Gypsum has both short and long-term impacts on soil sodicity. In the short term it increases salinity to suppress dispersion. In the long term it replaces sodium on soil particles with calcium.

  • Project digs deep to understand whether soil changes add up
    Soil and Nutrition, 28 Aug 2021
    Project digs deep to understand whether soil changes add up

    Alleviating subsoil constraints can lead to yield gains, but these changes need to be considered as capital investments

  • Loamy soils’ potassium status under review
    Soil and Nutrition, 17 Aug 2021
    Loamy soils’ potassium status under review

    Potassium depletion of loamy soils in Western Australia has been the subject of new attention. Better growth in windrows on these soils could be an indicator of declining soil potassium supply more broadly across these soil types.

  • Research sheds light on gypsum’s role in tackling soil acidity
    Soil and Nutrition, 09 Aug 2021
    Research sheds light on gypsum’s role in tackling soil acidity

    Some growers are looking at gypsum as an option to tackle subsoil acidity. As gypsum is more soluble than lime, some people think that gypsum and lime will move into acidic layers faster than lime alone, and that gypsum can counteract toxic aluminium.

  • Ripping duplex soils may reduce waterlogging
    Soil and Nutrition, 21 Jul 2021
    Ripping duplex soils may reduce waterlogging

    Evidence from trials and growers suggests ripping non-dispersive duplex soils can help reduce waterlogging.

  • Call to redefine soil constraints
    Soil and Nutrition, 06 Jul 2021
    Call to redefine soil constraints

    Referring to physically dispersive soils as sodic soils is leading to ineffective and uneconomical testing and management strategies

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