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soil carbon

Catalogue: Ground Cover
Automated gas chambers measuring nitrous oxide emissions from canola planted on soils with high and low carbon content at the Liebe Group's soil biology trial site in 2012... Researchers are now interested in learning whether increased soil carbon levels alter nitrogen fertiliser requirements for crops, and if the risk of higher nitrous oxide emissions from crop production increases... "In the first instance, we want to assess whether increasing soil carbon will make a difference to the amount of nitrogen required to produce a barley crop," Dr Barton says...
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Catalogue: Ground Cover
Soil organic matter has three fractions: particulate organic carbon is decomposing plant material being broken down by microorganisms; humus organic carbon is the remains of the broken-down particulate fraction and new material created by the organisms involved in decomposition; and resistant organic carbon is inert material, mostly charcoal... The trial found that further down the soil profile, adding nutrients also increased the amount of soil carbon when compared with stubble with no nutrients added... Each group is investigating the opportunities to increase soil carbon by comparing standing stubble with and without added nutrients, incorporated stubble with and without nutrients, and removed stubble with and without nutrients...
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Catalogue: GRDC Research Summaries
The Soil Carbon Research Program (SCRP) of research will bring together soil carbon researchers from CSIRO, State Government Agencies and Universities to deliver a coordinated program of research projects with the following objectives: 1... The benefits of rebuilding lost soil carbon.. While carbon has been cast into the centre of community debate, soil scientists are keen for grain growers not to lose sight of carbon's vital role in lifting soil's production potential..
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Catalogue: GRDC Media
Soil health was well covered, with presentations on soil limitations affecting the profitability of applying clay on non-wetting sandplain soils; applications and limitations of soil testing kits and ion-selective electrodes for analysing plant available nutrients in WA soils; soil pH and the profitability of liming... WA growers contend with a complex set of soil issues to and many of the soil presentations emerged from the GRDC-funded initiative, Managing Hostile Subsoils in WA... Dr Louise Barton, GRDC-supported researcher from the School of Earth and Geographical Sciences at the University of Western Australia, addressed the global warming potential of wheat production in WA. Her work analysing soil nitrous oxide emissions demonstrates the need to use regionally specific data when assessing and developing strategies to minimise greenhouse gases (GHG) from agricultural production systems...
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Catalogue: GRDC Media
Soil health was well covered, with presentations on soil limitations affecting the profitability of applying clay on non-wetting sandplain soils; applications and limitations of soil testing kits and ion-selective electrodes for analysing plant available nutrients in WA soils; soil pH and the profitability of liming... WA growers contend with a complex set of soil issues to and many of the soil presentations emerged from the GRDC-funded initiative, Managing Hostile Subsoils in WA... Dr Louise Barton, GRDC-supported researcher from the School of Earth and Geographical Sciences at the University of Western Australia, addressed the global warming potential of wheat production in WA. Her work analysing soil nitrous oxide emissions demonstrates the need to use regionally specific data when assessing and developing strategies to minimise greenhouse gases (GHG) from agricultural production systems...
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Catalogue: Ground Cover
Rethink on soil organic carbon benefits.. The trial found that further down the soil profile, adding nutrients also increased the amount of soil carbon when compared with stubble with no nutrients added... Each group is investigating the opportunities to increase soil carbon by comparing standing stubble with and without added nutrients, incorporated stubble with and without nutrients, and removed stubble with and without nutrients...
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Catalogue: Ground Cover
The Goondiwindi Update opened with two keynote addresses, both of which focused on soil... The opening speaker, Professor Iain Young from the University of New England, challenged the audience with the concept that soil is the most important material on Earth and that this fragile and limited resource is disappearing due to urbanisation and agricultural practices... Professor Young reminded the audience that life in the soil drives the resilience and productivity of soil...
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Catalogue: GRDC Media
SEEKING SOIL CARBON PROJECT PARTICIPANTS: Grain growers in Victoria's south-west are being invited to participate in the Victorian Soil Carbon Project which will help agricultural industries and governments make more informed decisions about managing soil carbon... The project, which aims to measure the amount of carbon and the type of carbon in agricultural soils using consistent measurement methods, involves collaboration with several farming groups, including Southern Farming Systems (SFS)... SFS chief executive officer Jon Midwood says SFS is in search of paddocks on Chromosol (buckshot), Sodosol (loamy with sodic subsoil) or Vertosol (heavy cracking clay) soils and 10 years of record-keeping for each of these paddocks is required to gain enough information about the soil. "..
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Catalogue: GRDC Media
The project, which aims to measure the amount of carbon and the type of carbon in agricultural soils using consistent measurement methods, involves collaboration with several farming groups, including Southern Farming Systems (SFS)... As part of the project, SFS is seeking to obtain soil samples from paddocks that have a known 10-year management history of continuous pasture, continuous cropping or mixed pasture-cropping... SFS chief executive officer Jon Midwood says SFS is in search of paddocks on Chromosol (buckshot), Sodosol (loamy with sodic subsoil) or Vertosol (heavy cracking clay) soils and 10 years of record-keeping for each of these paddocks is required to gain enough information about the soil. "..
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Catalogue: GRDC Updates
We all know that soil organic matter is good for the soil and that crops growing in healthy soils with high soil organic matter levels are easier to manage and perform better... The impact and value of these different functions varies with different soils and the types, or fractions, of soil organic carbon that we use to measure soil organic matter... Our work to date confirms that declines in soil organic matter and carbon are inevitable when the land use changes from native vegetation to cropping...
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