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Catalogue: GRDC Media
Dr Mike Bell, Queensland Alliance for Agriculture and Food Innovation (QAAFI), University of Queensland and David Lester, Department of Employment, Economic Development and Innovation (DEEDI) say this is especially the case where sufficient nitrogen is available... "Combinations of nutrients including phosphorus, sulfur and potassium are proving effective, especially when enough nitrogen is available to allow higher yield targets to be reached," Dr Bell said... CAPTION: Dr Mike Bell, Qld Alliance for Agriculture and Food Innovation (QAAFI), University of Qld, Kingaroy is carrying out GRDC-supported nutrient research...
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Catalogue: GRDC Research Summaries
Rhizoctonia bare patch disease remains an important but unpredictable disease for cereals in the southern Australian agricultural region... Management of natural disease suppressive ability of soils has been suggested as a potential solution to control Rhizoctonia bare patch disease... The project will address (i) the shorter-term solutions such as rotation, tillage and fungicides to reduce disease incidence and increase plant growth and yield and (ii) will develop new knowledge that will assist in a longer-term control of Rhizoctonia through improving our understanding and management of natural soil suppressive activity & improved prediction of disease occurrence...
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Catalogue: GRDC Updates
Recent work in DAQ00148 and previous projects has focussed on developing new soil testing strategies (0-10cm and periodic 10-30cm testing to determine P and K status), soil tests (BSES P and tetraphenyl borate extractable K to measure slow release P and K reserves) and critical soil test values to trigger fertiliser application responses... Previous results (Spring 2011 Updates) showed that sorghum responses to P bands were improved when band spacing was 50cm or less, and similar trends have been obtained for K band spacings in the winter wheat crop at Brookstead (Table 2), although differences were not statistically significant... Similarly we are now undertaking more work on crop responses to S applications, especially when combined with P and/or K. Quantifying the costs and benefits of getting the right combination of nutrients in the right place at the right time will be essential to maintaining or improving profitability and sustainability of our cropping soils...
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Catalogue: GRDC Final Reports
The main objective of this project was to develop improved prediction and better management options for controlling Rhizoctonia disease through identification of critical regulating factors influencing R. solani , microbial activity and host plants... It should be noted that multiple summer rainfall events reduce the Rhizoctonia pathogen inoculum levels from high to lower disease risk, whereas prolonged dry periods can even cause an increase in inoculum levels... Results from multiple sites in SA and NSW indicated that inoculum levels were generally reduced after non-cereal rotation crops including peas, medic pasture and fallowing compared to cereal crops...
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