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Catalogue: GRDC Updates
As an example, where appropriate use of fertilisers can increase productivity beyond that currently being attained, adjusting the amount or timing of fertiliser application would result in greater carbon inputs to the soil... Recent research results have also noted that the proportion of residue carbon that is retained in a soil to enhance soil carbon stocks can be enhanced by ensuring that enough nutrients exist in the soil to both satisfy the crop requirements and the requirements to build soil organic carbon... If we use the same bulk density as above (1.2 g/cm3) and restrict our calculations to the top 10 cm of soil where organic carbon is most easily increased, at 2% carbon the soil would contain 24 tonnes C/ha...
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Catalogue: GRDC Updates
If we use the same bulk density as above (1.2 g/cm3) and restrict our calculations to the top 10 cm of soil where organic carbon is most easily increased, at 2% carbon the soil would contain 24 tonnes C/ha... In Figure 4 the estimated changes in soil organic carbon content (%) of the 0-10 cm layer that occur with different levels of wheat production (grain yield) are presented... Results indicate that a sustained productivity of about 4 tonnes/ha/year of wheat grain yield is required to maintain the equilibrium soil carbon content at Roseworthy (Figure 4 a)...
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Catalogue: GRDC Updates (West)
Building soil carbon for productivity implications for carbon accounting Jeff Baldock, CSIRO Land and Water, Adelaide, SA and.. Crop Updates is a partnership between the Department of Agriculture and Food, Western Australia and the Grains Research & Development Corporation 1.. Stored water is estimated by using the formula: 10% of the previous November and December rainfall plus 20% of January and February rainfall, plus 55% of March rainfall plus 75% of April rainfall...
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