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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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...