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Transformational agronomy by growing summer crops in winter: northern NSW

Serafin, L., Hellyer, M., Rodriguez, D., Eyre, J., Aisthorpe, D. and Mumford, M. H. (2022) Transformational agronomy by growing summer crops in winter: northern NSW. In: Proceedings of the 20th Agronomy Australia Conference, 2022, 6 - 10 February 2022, Toowoomba Qld.


Article Link: http://agronomyaustraliaproceedings.org/images/sam...


Grain sorghum yield is often reduced by heat and water stress during critical growth stages around anthesis when planted in the traditional sowing window. Sorghum sown during late winter or early spring can flower before these stresses develop, though reduced plant establishments due to sub optimal soil temperatures and the likelihood of frost damage need to be managed. Two years of experiments at Mungindi, Moree and the Liverpool Plains in Northern NSW compared sowing time effect on plant establishment, date of anthesis and grain yield. Sorghum can be established in sub-optimal temperatures (<16°C) if seedbed moisture is available but losses of 10-30% need to be factored into sowing rates. The overlap between flowering and heat stress was minimised by ‘winter’ or early spring sowing. Grain yield was maintained or improved by planting earlier compared to traditional sowing times.

Item Type:Conference or Workshop Item (Paper)
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Crop and Food Science
Additional Information:Open access
Keywords:Grain yield, quality, plant establishment, anthesis
Subjects:Science > Botany > Genetics
Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Field crops
Plant culture > Field crops > Sorghum
Live Archive:22 Sep 2023 02:17
Last Modified:22 Sep 2023 02:24

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