You are here

soil chemistry

Categorised under:

Catalogue: GRDC Media
Growers set to profit from nutrition knowledge.. Northern region growers are being offered a valuable insight into the critical relationship between soil nutrient balance and crop profitability during a series of More Profit from Crop Nutrition (MPCN II) workshops and field walks... Department of Agriculture, Fisheries and Forestry (DAFF) researcher and project leader, Dr Kaara Klepper said the workshops provided growers with an opportunity to enhance their knowledge of soil and crop nutrition, and discuss individual issues related to crop production, soil testing, nutrient budgeting, crop yield and grain protein targets...
Related categories:
Catalogue: Ground Cover
University of Adelaide scientists mapping the extent of herbicide resistance in annual ryegrass across southern Australia's high-rainfall zone (HRZ) have concluded that pre-emergent herbicide use is essential... The GRDC-supported research, involving varying weather patterns, topography and soil types, indicates options such as Sakura plus Avadex Xtra or Sakura followed by Boxer Gold post-emergent can provide effective control of annual ryegrass in the HRZ... The university's research included random farm surveys across south-eastern Australia to map ryegrass herbicide resistance in the HRZ, and the findings from these surveys will be incorporated into a new national resistance-mapping tool developed by Bayer (see Weed resistance maps help navigate herbicide options )...
Related categories:
Catalogue: GRDC Media
Manures prove their worth in a fertiliser program.. Manures can be a cost effective means of supplementing traditional in-organic fertilisers to help replace nutrients such asnitrogen (N) and phosphorus (P) which are extracted from the soil during a crop's growth cycle and removed from the paddock in grain... Manures from beef cattle feedlots and poultry farms are increasingly being used to supplement traditional in-organic fertilisers in helping replace nutrients such as nitrogen (N) and phosphorus (P) which are extracted from the soil during a crop's growth cycle and removed from the paddock in grain...
Related categories:
Catalogue: GRDC Media
With summer fast approaching, northern grain growers thinking of double cropping their country should be preparing now and addressing questions of soil nutrition, water availability and weed pressure... In thinking about herbicides, grain growers will also need to factor in which weeds are likely to be present over summer so that they can utilise a crop which will allow for the right chemistry groups to be used as part of their herbicide rotations... For example, mungbean growers can use Group A chemistry in crop for grass weed control, whereas sorghum growers tackling the same grass weeds can use Group K residual herbicides...
Related categories:
Catalogue: GRDC Factsheets
Nitrogen is vital to crop growth but it is mostly present in soil in an organic form that plants cannot take up... Organic nitrogen typically accounts for more than 90 per cent of all nitrogen in soil but usually is not directly available to plants... The ratio of carbon to nitrogen in residues is a deciding factor whether nitrogen is removed or released in the soil...
Related categories:
Catalogue: GRDC Publications
Part of the project aims to characterise, assess, and simulate the suitability of current genetics for earlier sowing in Australian farming systems across a range of environments using crop management tools such as APSIM... The PhD project aims to identify how molecular changes within the mitochondria allow plants to continue growth at a range of temperatures... Education and research are critical in developing the 'science push' for sorghum as a health promoting food - this knowledge needs to be interpreted and disseminated to the Australian grains industry (farmers, producers), food products developers, marketers and key government organisations y t i c a p a C & s l l i k S g n i d l i u B ...
Related categories:
Catalogue: Nuffield Scholar Reports
I felt strongly motivated to find ways we could scientifically analyse what we were doing to gauge the efficacy of methods we were adopting... Catherine Harvey Biological Farming: A Practic1a.l Guide Sidney Myer Fund 15 capacity (CEC) depends very much on the soil element composition, which in turn is dependant on the parent rock and the level of weathering that has occurred... Catherine Harvey Biological Farming: A Practic1a.l Guide Sidney Myer Fund 50 yields increase from 10 to 300%...
Related categories:
Catalogue: Nuffield Scholar Reports
The system may allow continual cropping but it does not really allow the soil to fully recover... I always believed that wild radish germinated because we cultivated the soil... If we are going to use plants to improve our soil structure then we need those plants to grow at their maximum potential...
Related categories:
Catalogue: GRDC Media
Growers praised for efforts to preserve healthy soils.. On the eve of World Soil Day (December 5), Grains Research and Development Corporation (GRDC) Managing Director John Harvey says it is timely to acknowledge the grains industry's efforts in ensuring the long-term fertility of soils, necessary for essential food production... Scientists involved in the Soil Biology Initiative agree that the program is making considerable progress in understanding the composition of the living fraction of soils which support crop production, and how growers can best manage soils to maximise nutrient capture and defend against crop disease...
Related categories:
Catalogue: GRDC Media
Get the right advice on soil tests.. When taking the results from test values to fertilizer recommendations, a Fertcare accredited adviser has the training to assess those results, in conjunction with a grower's situation including rainfall, crop, and soil type, to prepare a fertiliser plan," he said... " the results give advisers confidence in the ability of particular soil tests to predict is there is a yield response to be had, and are one of the reasons it is best to ensure your advisor is Fertcare accredited, so you know they have access to this information," Dr Norton said...
Related categories:

Pages