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soil microbial community

Catalogue: GRDC Research Summaries
Experimentation will focus on molecular techniques to understand the activity of soil microbial communities in releasing nutrients, coupled with detailed measures of soil nutrient cycling... Molecular techniques to understand the soil microbial communities role in nutrient release will be applied to field experiments to determine whether these soil biological processes can be manipulated through agronomic management to improve the prediction of nutrient cycling and crop productivity... Information from both outputs will be used to evaluate whether the presence and activity of these soil biological communities can be modified by different agricultural practices...
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Catalogue: GRDC Media
Australian research is beginning to reveal the impact of farming practices on soil microbiology and how this affects the supply of yield-boosting nutrients to crops... Dr Phillips said research was exploring whether previous crops influenced microbial community functioning in subsequent cropping years; whether differences in the amount and quality of residue/stubble impacted microbial communities responsible for transforming organic and mineral N to plant-available N; and whether agronomic practices such as tillage and depth of fertiliser placement could be strategically used to manipulate N-cycling microbial communities... Caption: Soil microbiologist Lori Phillips says current research is aimed at determining the make-up of microbial communities in the soil, their role in nutrient cycling and how farming practices influence microbial activity...
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Catalogue: GRDC Publications
Soil microrganisms also impact on the physical properties of soils including their capacity to hold water... An on-going output will be the coordination of review workshops and reporting processes to ensure that adequate resourcing, integration and consistency measures are being applied across all projects and new opportunities are identified... The major foci of this project are to screen and identify elite diseasesuppressive microbes for cereals and nodulation enhancing beneficial microbes for legumes...
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Catalogue: GRDC Updates (South)
The crops should be well nodulated and highyielding and the residual nitrogen benefits should be effectively captured by the following crop or pasture... Research by Mike Hughes, NSW DPI Grafton, and colleagues during the 1980s established that a 2.6 t/ha crop fixed about 265 kg N/ha (Hughes and Herridge 1989)... Bug thresholds for edible soybeans are considerably lower than for crushing beans and range from 0.33-0.6/m 2depending on crop size* (no of seeds per plant), the threshold being higher in larger crops...
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Catalogue: Ground Cover
Managing microbes to manage nitrogen.. Research into soil microbes may identify ways to keep more nitrogen in the soil and available to crops... By studying how nitrogen is processed in soil systems and which microbes are responsible, Dr Phillips can explore how agronomic practices influence those microbial communities and improve nitrogen uptake...
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Catalogue: GRDC Media
Research probes microbes' role in crop nutrient uptake.. Australian research is beginning to reveal the impact of farming practices on soil microbiology and how this affects the supply of yield-boosting nutrients to crops... Caption: Soil microbiologist Lori Phillips says current research is aimed at determining the make-up of microbial communities in the soil, their role in nutrient cycling and how farming practices influence microbial activity...
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Catalogue: GRDC Research Summaries
Experimentation will focus on molecular techniques to understand the activity of soil microbial communities in releasing nutrients, coupled with detailed measures of soil nutrient cycling... Molecular techniques to understand the soil microbial communities role in nutrient release will be applied to field experiments to determine whether these soil biological processes can be manipulated through agronomic management to improve the prediction of nutrient cycling and crop productivity... Information from both outputs will be used to evaluate whether the presence and activity of these soil biological communities can be modified by different agricultural practices...
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Catalogue: GRDC Final Reports
The potential for changes in soil microbial function for improved productivity through intensive cropping systems were evaluated in this project... A resilience test in which soils are exposed to repeated wet-dry cycles provides a suitable assay to determine changes in the stability of microbial functions... Results from the project demonstrated the likelihood of changes in microbial functions relevant for increased nutrient efficiency and productivity by altering C inputs through the use of intensive cropping systems...
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