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biological soil supply

Catalogue: GRDC Updates
The objective of the paper is to examine the relative contribution of soil biological attributes, including organic carbon to crop production using Western Australian (WA) farming systems as an example... Identifying Soil Constraints to Crop Production Environmental indicators are measures of physical, chemical, biological or socio-economic characteristics which reflect changes in processes, properties or function - with different attributes required for different land uses... In the trial, the microbial biomass (measured to 30 cm depth) contained the equivalent of 192 kg/ha urea (stubble retained) and 146 kg/ha urea (stubble burnt) - a significant source of potentially plant available N. These results illustrate that regular inputs of organic residues promote both a larger but also more active microbial community...
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