You are here

Seed requirements

Catalogue: GRDC Research Summaries
This project aims to develop DNA tests to quantify Free Living Nematode (FLN) groups in soil, which will be useful indicators of soil quality... Nematodes are useful biological indicators of soil health because they: occur in all soils; are readily extracted and identified; have a wide range of food sources; are ecologically and taxonomically diverse; and respond to changes in food sources, as well as soil physical and chemical properties Indices derived from nematode community analyses can be used to provide information about a soil ecosystem with respect to nutrient status, presence of pollutants, disturbance and disease suppression... The project will provide information on free-living nematode communities in key Australian cropping soils, identify groups which will be useful to assess soil biological health and link analysis to soil quality monitoring...
Related categories:
Catalogue: GRDC Publications
In summary, 20 trials have now recently been undertaken across a number of seasons and locations in NSW. None of them have demonstrated S responses in yield or oil %. This does not exclude deficiency and yield penalties from occurring but does highlight that the frequency and the likelihood is not high... In summary, using Yield Prophet as a way of increasing soil water knowledge is more difficult to trial than probes... In summary, the growth in the use of probes to understand soil water is easily explained using the framework above...
Related categories:
Catalogue: GRDC Publications
In summary, 20 trials have now recently been undertaken across a number of seasons and locations in NSW. None of them have demonstrated S responses in yield or oil %. This does not exclude deficiency and yield penalties from occurring but does highlight that the frequency and the likelihood is not high... In summary, using Yield Prophet as a way of increasing soil water knowledge is more difficult to trial than probes... In summary, the growth in the use of probes to understand soil water is easily explained using the framework above...
Related categories:
Catalogue: GRDC Publications
Soil organic matter contributes to a range of biological, chemical and physical properties of soil and is essential for soil health... Soils rarely reach their theoretical potential for organic matter storage (see Figure 1.7)... In soils with low clay content the amount of humus and resistant soil organic matter is increasingly important to nutrient exchange because its large surface area gathers (adsorbs) cations from the soil solution, holding nutrients that would otherwise leach...
Related categories:
Catalogue: GRDC Updates
Previous trials and demonstrations funded through the Department of Environment Water and Natural Resources (DEWNR) and Caring for Our Country have shown large increases in production are possible results have been variable and somewhat unpredictable. '.. The document provides a summary of areas of potential opportunity and also a brief description of the most likely and most beneficial outcomes... While a review of claying trials in South Australia showed an average yield increase of 70 per cent, individual results ranged from 0 to 100 per cent...
Related categories:
Catalogue: Nuffield Scholar Reports
The practice of adding biochar to the soil to enhance the soils agricultural value has been undertaken for over two thousand years... Some early studies into the value of biochar as a soil additive suffered due to a lack of knowledge regarding the varying outcomes of the pyrolysis process or potential function of biochar in the soil... With the influence of previous worldwide agricultural practices having left some soils depleted and exposed to risk of loss through erosion and the forecast increases needed in food production, there is a great need on these soils for regenerative agricultural practices to rebuild their productive capacity...
Related categories:
Catalogue: GRDC Updates
It is extremely important to use farm management practices that maintain organic matter levels, especially biologically available organic matter in our soils... Australian soils are inherently low in biologically available carbon carbon inputs have a major influence on soil biological activity... For an introduced biocontrol agent to be effective it must first survive, establish, acclimatize and grow in field soils and interact with the pathogenic organisms alone or in the presence of plant...
Related categories:
Catalogue: GRDC Updates (North)
Boomi Grains Research Update for Growers.. A case study from the Moree district Experiments conducted in the Garah and Gurley districts by The University of New England showed that the application of by-product gypsum to strongly sodic grey clays can greatly improve the profitability of dryland wheat production... Microbiological and chemical soil tests showed that the soil around the macropores is a richer environment than the bulk soil, and the difference between bulk and macropore soil increases with depth...
Related categories:
Catalogue: GRDC Updates (South)
Boomi Grains Research Update for Growers.. A case study from the Moree district Experiments conducted in the Garah and Gurley districts by The University of New England showed that the application of by-product gypsum to strongly sodic grey clays can greatly improve the profitability of dryland wheat production... Microbiological and chemical soil tests showed that the soil around the macropores is a richer environment than the bulk soil, and the difference between bulk and macropore soil increases with depth...
Related categories:
Catalogue: Nuffield Scholar Reports
The objective of my study was to understand the principals behind carbon trade and the on ground farming practices that may enhance soil health, increase sequestration and potentially increase greater amounts of soil carbon... I firmly believe that agriculture has a positive role to play in carbon sequestration and although not the sole answer to reducing all CO 2 emissions farmers and farming operations deserve good information to serve them now and into the future... 1% OC = 3.6 kg/m 2= 14.4 litres/m 2= 144,000 litres/ ha The above calculation shows that an increase of 14.4 litres of extra plant available water could be stored per square metre in the top 30cm of soil with a bulk density of 1.2g/m 3, for every 1% increase in the level of soil organic carbon in addition to the current water holding capacity of the soil itself...
Related categories:

Pages

Assigned key phrases