Show simple item record Grundy, Paul 2021-04-05T23:54:42Z 2021-04-05T23:54:42Z 2018-05
dc.description.abstract This project was undertaken to investigate how dryland cotton production and its place in the farming system could be improved, particularly with the release of Bollgard® 3 varieties. Changes to the Resistance Management Plan (RMP) for Bollgard 3 with the relaxation of planting windows and pupae busting requirements offer the potential for greater flexibility in how growers might utilise cotton within the dryland farming system. The project commenced with a series of workshops to engage with dryland cotton growers from across the northern region to better understand the strengths and limitations of the overall farming system and dryland cotton’s place within it for the purpose of identifying opportunities for where RD&E could have the greatest impact. The topics, concerns and opportunities raised at the workshops were then subject to a broad-based review to determine where RD&E could best be targeted for the betterment of the dryland cotton industry. The review identified a number of R&D gaps around the: • implications for changes to pupae busting on the farming system • need to develop effective zero-tillage crop destruction tactics • opportunity to combine modelling with farming systems research to answer some of the more difficult crop sequencing questions raised by growers • need to ensure that weed management practices extend across the system and are not carried out in isolation within each commodity • potential to better extend a large body of existing R&D together with local validation to answer the many questions that growers have in expanding dryland cotton regions (e.g. the Liverpool Plains). The grower workshops and review identified that it was regions with more marginal dryland cotton production prospects (lower rainfall and/or duplex soils) or areas where dryland cotton has been recently expanding (Liverpool Plains) that would potentially see the greatest benefits from new RD or E. At the same time that the review was undertaken, a number of pilot studies were also conducted to examine the potential to overcome marginal soil moisture conditions with water injection and to test the use of the ultra-high pressure water jet cutting technology AquaTill for end of season crop destruction. Water injection both alone and with the addition of the moisture attractant SE14 (Sacoa Pty Ltd) was found to have limited potential to aid crop establishment under marginal soil moisture conditions. The use of AquaTill for the delivery of herbicide to post harvest stub cotton showed promise as a zero tillage crop destruction technique. This technique will be further developed by the Dryland Cotton Research Association in cooperation with the South Australian No Tillage Farming Association. A conclusion of this project was the region spanning the border at Goondiwindi to Rowena and east to Quirindi in NSW represented some of the areas that would most benefit from targeted RD&E. The Queensland-based Department of Agriculture as the lead agency was not ideally placed to deliver on the identified needs of this region and therefore the project was concluded after the completion of the review so that a localised delivery model could be developed. en_US
dc.description.sponsorship Cotton Research & Development Corporation en_US
dc.publisher Queensland Department of Agriculture and Fisheries en_US
dc.relation.ispartofseries DAQ1703;
dc.title Opportunities for dryland cotton with Bollgard 3 en_US
dc.type Technical Report en_US

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