Biochar (biomass-derived carbon) can influence arbuscular mycorrhizal colonisation, plant growth, P nutrition and water relations but research is not conclusive. Therefore, a glasshouse experiment was conducted using wheat and clover with three water regimes, two biochar rates (0, 6 t/ha) with a series of harvests. Mycorrhizal colonisation was altered by water regimes. Shoot and root dry weight increased in well-watered compared to water-stressed conditions. Root length and colonised root length increased in the biochar treatment for wheat, especially in the well-watered treatment. Leaf gas exchange was higher in the presence of biochar indicating increased water availability to plants growing in biochar treated soil.
|Title of host publication||19th World Congress of Soil Science, Soil Solutions for a Changing World|
|Editors||Robert Gilkes, Nattaporn Prakongken|
|Place of Publication||Brisbane, Australia|
|Publisher||International Society of Soil Science|
|Publication status||Published - 2010|