An important role of pulse crops is nitrogen fixation, and key to that process are nodules – what are they and why do growers need to know more about them?

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Rhizobia are microbes that play an important role in nitrogen fixation in pasture and pulse legumes, but acid soils can have a big impact on the success of rhizobia.

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Dry sowing pulse crops is the norm rather than the exception today, however, maximising nitrogen fixation is dependent on a number of factors.

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The speed at which fungicide resistance can develop leaves no room for complacency. For example there are examples where spot form of net blotch has developed resistance in just one or two seasons.

On this podcast Fran Lopez Ruiz from the Centre for Crop and Disease Management gives details of research which proves that some fungal diseases can start independently of the normal disease spread mechanisms, and also describes a recent discovery of a double mutant population which is resistant to two modes of action.

Contact:

Fran Lopez Ruiz

[email protected]

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Like any other industry, agriculture needs to know where it’s going so it can create a pathway to the future. That’s where deep thinkers like Professor Tim Reeves comes into play.

On this podcast Tim addresses the big issue facing agriculture right now – a doubling of production with the same amount of water and land and doing it sustainably.

Contact:

Professor Tim Reeves

[email protected]

Link: https://grdc.com.au/resources-and-publications/grdc-update-papers/tab-content/grdc-update-papers/2020/02/is-sustainable-intensification-of-cropping-systems-achievable

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Grazing dual purpose crops can be very profitable with high livestock prices. So doing it well quickly translates into extra dollars on the bottom line.

Farm advisor, David Harbison says getting the fundamentals right takes planning and active management, with the result being significant shifts in profitability.

Contact:

David Harbison

[email protected]

Useful information:

https://grdc.com.au/resources-and-publications/grdc-update-papers/tab-content/grdc-update-papers/2020/02/wire,-water-and-grazing-management-in-dual-purpose-crops

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Growers and advisers are urged to go beyond a visual inspection of crops to determine the exact cause of ill-thrift in a crop.

Research that followed the devastating impact of beet western yellows virus in 2014 canola crops in South Australia has thrown up some anomalies causing scientists to urge more precision when it comes to diagnosing potential crop disease.

Contact:

Piotr Trebicki

[email protected]

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Snails are one of those pests that can’t be controlled by any one tool – but a significant amount of research is happening across the country to give growers effective control options.

In this podcast, South Australian Research and Development Institute (SARDI) entomologist Helen Brodie shares the latest research findings and insight on controlling snail populations.

More Information:

Helen Brodie

[email protected]

Resources:

Update paper – Snail Management – Learnings from recent studies: https://grdc.com.au/resources-and-publications/grdc-update-papers/tab-content/grdc-update-papers/2020/02/snail-management-learnings-from-recent-studies

Autumn is the best time to bait snails https://grdc.com.au/news-and-media/news-and-media-releases/south/2020/april/autumn-is-the-time-to-bait-snails

GRDC Snail bait application factsheet https://grdc.com.au/resources-and-publications/all-publications/factsheets/2015/01/snail-bait-application

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At the 2020 Grains Research Update at Goondiwindi digital soil mapping specialist Ed Jones from the University of Sydney, gave a presentation on mapping soil properties and their impact on yield.

It’s what in the near future will become the way growers and their advisors calculate what management a paddock, or section of a paddock needs to increase crop yield and maximise grower profit.

The technique uses data from multiple sources, applies machine learning and delivers recommendations in weeks that until recently took decades to record, digest, trial and apply.

Contact:

Edward Jones

Sydney Institute of Agriculture & Precision Agriculture Laboratory

The University of Sydney

02 8627 1109

[email protected]

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New research has shown just how deep canola roots will travel in their search for moisture late in the season. Trials have shown that there are significant yield advantages from early sown canbola that experiences a dry finish. But there are trade offs.

In this podcast CSIRO’s John Kirkegaard reveals just how low canola roots go and the benefits that can be derived from early sown canola.

Contact:

John Kirkegaard

CSIRO

[email protected]

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