soil microbial population

In a recent survey 96% of growers indicated their knowledge about soil health had increased as a result of this project; 94% indicated they were better at making decisions for their business regarding soil health and 91% indicated information from the Liebe Group had been useful for changing farm practices... Professor Daniel Murphy, of UWA, analysed results from the Liebe Group's long term Soil Biology Trial, which has been measuring soil organic carbon build up since 2003, and the results of this analysis have provided growers with an indication of realistic soil organic carbon levels that can be targeted... Seven fact sheets about soil amelioration have been produced. . They contain concise and practical information to be used as starting points for growers investigating soil amelioration options...

Increasing the soil organic matter content of soils takes time and requires higher levels of carbon inputs and reduced levels of carbon outputs... The research undertaken by Clive Kirkby (CSIRO) and farmer demonstration projects are investigating management practices which can result in an increase in the humus fraction of the total SOM pool... Soil with Carbon increase of 0.8% had the lowest increase for lowest probability at approximately 4000kg/ha...