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soil organic

Catalogue: GRDC Updates
Williams and Lipsett (1961) found that 50-60 years of wheat cultivation in NSW resulted in a loss of 30% of organic C but only 17% organic P. In natural soils the extent of net immobilization of P in organic matter and probably soil organic matter levels may often be set by the P supply in the parent material... Many authors only consider supply to occur by mass flow and diffusion (the interception component in Table 2.2 is combined with the diffusion component)... Plants can access a greater volume of soil through the formation of a mycorrhizal symbiosis...
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Catalogue: GRDC Media
GRDC helps grow profitability through soil biology research.. In the past there has been significant research focussed on soil nutrition and structure the Grains Research and Development Corporation (GRDC) is recognising the fundamental importance of soil biology with investment in three key research areas - disease suppressive soils, nutrient management and soil quality monitoring... Other key findings within the nutrient management work include that minimising fertiliser application at sowing will enhance microbial processing of soil organic N and that molecular tools may be used to assess the mineralisation potential in a wide range of soils...
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Catalogue: GRDC Media
GRDC helps grow profitability through soil biology research.. As part of the disease suppressive soils work, over 130 soils from the northern region were surveyed for the presence of natural enemies to Root Lesion Nematodes (RLN)... Other key findings within the nutrient management work include that minimising fertiliser application at sowing will enhance microbial processing of soil organic N and that molecular tools may be used to assess the mineralisation potential in a wide range of soils...
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