You are here

soil pool

Catalogue: GRDC Updates
Plot of cumulative crop P uptake against Colwell-P for 15 soils used in the glasshouse depletion experiment... Plot of relative yield against Colwell-P for 15 soils used in the glasshouse depletion experiment... The results in Fig. 2 indicate that the BSES-P (440 mg P/kg) in Soil 9 is not as available as the BSES-P in Soil 8 or Soil 3 (382 mg P/kg and 91 mg P/kg respectively)...
Related categories:
Catalogue: GRDC Updates
Soil organic matter is divided up into five soil pools including; biomass (dead and alive), fresh organic matter (FOM), active soil organic matter (SOM A ) and passive soil organic matter (SOM P )... Net N mineralisation, over the crop growing season (May - October), was calculated to be only 9 kg N/ha/yr when default decay rate of decomposition of FOM (0.05/day), of SOM A (0.00015/day) and of dead microbial (0.01/day) material were used... Daily rates of N mineralisation (kg/ha/d) of FOM and SON A soil pools in the presence of wheat crop residue (1995 crop) with lupins grown in 1996, over the period December 1995 to December 1996...
Related categories:
Catalogue: GRDC Updates
Specific management practices alter the abundance and activity of microbes capable of processing both organic and mineral-N... Once we better understand the soil biological and chemical factors governing N-transformations in our agricultural systems, we can determine how agronomic practices can be used to synchronise N supply, from both fertiliser and soil sources, with crop demand... A primary goal of this project was to develop and use molecular tools to detect these N-cycling communities in Australian agricultural systems...
Related categories:

Associated key phrases