You are here

soil characteristic

Catalogue: GRDC Media
Boosting the suppressiveness of soils to RLN is emerging as a new frontline defence in controlling and eventually reducing RLN populations when used in conjunction with a best practice integrated management program... The challenge for industry lies in gaining a better understanding of the suppressive nature of grain-growing soils within the northern region with the aim of providing growers with methods to enhance the suppressiveness of their soils to RLNs... The impact of farm practices on the suppressiveness of soils to RLNs was studied as part of the project with results showing that factors such as pastures in rotation had a limited impact on soil suppressiveness...
Related categories:
Catalogue: Ground Cover
Ross Ballard and Liz Drew assess symbiotic competence of field pea rhizobia at SARDI in South Australia... Pulse crops such as field peas, faba beans, lentils and chickpeas may appear green and healthy throughout the growing season and yield well, but they may in part be relying on mineral nitrogen in the soil rather than contributing nitrogen to the system via biological nitrogen fixation... Soils were collected in autumn, prior to the start of the growing season, and the number of pea rhizobia present in soil and their ability to nodulate and fix nitrogen with peas determined...
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 Publications
The GRDC Soil Biology Initiative (SBI-II, 2009-2014) has partnered with research organisations throughout Australia to work towards the 10-year vision of increased profitability and sustainability of grain cropping as a result of harnessing the biological potential of soil... Timing of N fertiliser additions: Minimising or eliminating fertiliser applications at sowing will enhance microbial processing of soil organic N. Mineralisation measures: Molecular tools that measure the microbial genes associated with organic N release may be used to assess the mineralisation potential in a wide range of soils... Objectives: The project aimed to determine if populations of AM fungi (AMF) in soil are influenced by growth of different break crops, so influencing AM colonisation in the following wheat crop and delivery of soil phosphate (P) to the plants via the AMF. We use a novel method of estimating this delivery separately from direct P uptake by the roots, using radioactive P ( 33P)...
Related categories:
Catalogue: Ground Cover
Pursuing the mystery of disease-suppressive soils.. The GRDC is funding a suite of projects to identify and harness the biological traits associated with suppressive soils.. Mechanisms of disease suppression are identified using RNA sequencing technology to examine the genes that are switched on in suppressive and non-suppressive soils prior to sowing and six to eight weeks after sowing, when young plants can be infected by R. solani ...
Related categories:
Catalogue: Ground Cover
The GRDC is funding a suite of projects to identify and harness the biological traits associated with suppressive soils.. The project is looking to identify the key organisms involved in the suppression of root lesion nematodes and which soils might best support these organisms... Mechanisms of disease suppression are identified using RNA sequencing technology to examine the genes that are switched on in suppressive and non-suppressive soils prior to sowing and six to eight weeks after sowing, when young plants can be infected by R. solani ...
Related categories:
Catalogue: GRDC Updates
Phil Moody will talk more about Colwell/BSES-P dynamics and crop response in small volumes of soil... Since Colwell-P is still useful in predicting plant available P, poor fertiliser response could be attributed to other limitations on yield such as climate, other nutritional constraints, or the differences in P mineralogy that is measured by BSES-P and their release rate... Dr. Chris Guppy < Keep browsing 0 Responses to Using Colwell and BSES extractable phosphorus to predict Faba bean (Vicia faba L.) response..
Related categories:
Catalogue: GRDC Media
GRDC helps grow profitability through soil biology research.. As part of the disease suppressive soils work, over 130 soils from the northern region were surveyed for the presence of natural enemies to Root Lesion Nematodes (RLN)... Other key findings within the nutrient management work include that minimising fertiliser application at sowing will enhance microbial processing of soil organic N and that molecular tools may be used to assess the mineralisation potential in a wide range of soils...
Related categories:
Catalogue: GRDC Media
Boosting the suppressiveness of soils to RLN is emerging as a new frontline defence in controlling and eventually reducing RLN populations when used in conjunction with a best practice integrated management program... The challenge for industry lies in gaining a better understanding of the suppressive nature of grain-growing soils within the northern region with the aim of providing growers with methods to enhance the suppressiveness of their soils to RLNs... The impact of farm practices on the suppressiveness of soils to RLNs was studied as part of the project with results showing that factors such as pastures in rotation had a limited impact on soil suppressiveness...
Related categories: