Tag Agriculture

2019 has seen FFN partner with Charles Sturt University to provide FFN members with access to a series of the University’s studies directly relevant to young farmers. This first study analyses the value of hard-seeded annual legumes in mixed farming operations. Please contact CSU or FFN should you wish to find out more.

The value of hard-seeded annual legumes in mixed farming systems has been examined by researchers from the Graham Centre for Agricultural Innovation and these drought-tolerant pastures are already making a big difference to one Riverina farmer.

 Seven years of research at the Centre, an alliance between Charles Sturt University (CSU) and the NSW Department of Primary Industries (DPI), has included hard-seeded annual legumes like biserrula, arrowleaf clover, French serradella, bladder clover and gland clover.

NSW DPI soil research officer, Dr Belinda Hackney said biserrula has proved to be incredibly tough, particularly in below average rainfall years where its deep root system allows production of more forage and seed than traditional shallow-rooted annual legumes that often struggle to survive under these conditions.

“Biserrula has very high levels of hard seed and persists in the seed bank enabling it to survive a number of cropping years and regenerate on-demand without the need for re-sowing,” Dr Hackney said.

“Biserrula can be used as part of an integrated weed control strategy to help control problem cropping weeds such as annual ryegrass. It has lower palatability than annual ryegrass and sheep selectively remove it from the sward helping to reduce reliance on herbicides.

Key findings

  • Biserrula is very drought tolerant – in 2018 on 90 mm growing season rainfall, biserrula produced more than 170 kg seed/ha compared to sub clover and annual medic that produced less than 10 kg/ha.
  • Biserrula establishes readily on well drained soils of mild to moderate acidity. It is not suited to use on heavy textured, high clay content soils that may be subject to waterlogging
  • Biserrula has established well using summer, strategic dry and conventional stand-alone sowing options.
  • Under very dry summer conditions, summer sowing may be less effective due to slow rate of hard seed breakdown.

Proving its worth on-farm
Hard-seeded annual legumes have become a key part of the rotation on Mike O’Hare’s mixed farming enterprise at Beckom in the NSW Riverina.

About half the farm (900ha) has been planted to biserrula with the remainder a mix of bladder, gland and arrowleaf clovers

Mr O’Hare said “Not only is biserrula able to survive we get a false autumn break but it performs at the other end of the season too, hanging on for an extra grazing at the end. If we get late rain on a clover paddock you’ll see weeds but the biserrula out competes them, providing feed not weeds.”

Mr O’Hare said the goal is to establish the pasture in the first year to maximise seed set, the second year provides an opportunity for heavy grazing before spraying out in spring to provide a fallow break for Canola to be sown in year three. Year four will see wheat planted and then the biserrula regenerates after the cropping phase of the rotation.

The next step for research
New research, funded by the Grains Research and Development Corporation (GRDC)* is investigating the role of hard-seeded legumes used as on-demand pasture breaks in cropping rotations.

Dr Hackney says the research includes species completely new to Australian agriculture as well as those mentioned in this article and is focusing on their ability to supply biologically fixed nitrogen and reduce reliance (and associated input costs)  on fertiliser nitrogen.

Top tips:

  • Choose a legume suited to your soil type, rainfall, intended use and management needs.
  • Weed control prior to sowing is key to success in pasture establishment.
  • Don’t compromise on sowing rate. Use an appropriate rhizobia delivery mechanism matched to sowing time and soil moisture conditions.
  • Biserrula can cause primary photosensitisation in grazing animals –see this Factsheet for more information. Understanding photosensitisation in sheep grazing biserrula pastures

*This project is supported by funding from the Australian Government Department of Agriculture and Water Resources (as part of its Rural R&D for Profit program), the GRDC, Meat and Livestock Australia (MLA) and Australian Wool Innovation (AWI). The research partners include the South Australian Research and Development Institute (SARDI), Murdoch University, CSIRO, the WA Department of Primary Industries and Regional Development (DPIRD), and Charles Sturt University (CSU), as well as grower groups



Dr Belinda Hackney | Research Officer, Soils
NSW Department of Primary Industries
E: belinda.hackney@dpi.nsw.gov.au

Photo: Mike O’Hare in a paddock of biserrula during greener times. Photo by Ted Wolfe

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Written by Lachlan Rowbottom, Limestone Coast Pantry.

My fondest memories growing up revolved around food, happy times spent with my siblings climbing trees, camping in the bush, and eating mum’s home cooked meals, delicious experiments or growing our own vegetables and herbs.

The passion my mum has for food, has always been normal for us, and it seemed inevitable that one of us would want to join her on her journey. Being passionate about where our food comes from, how far it has travelled, how sustainably it can be sourced and supporting our local community of food producers has been our goal in business and in opening the Limestone Coast Pantry.

To guarantee the freshest & most nutrient dense food we can possibly source, we didn’t need to look very far, we have an abundance of local food producers on our doorstep from organic garlic, apples, eggs, vineyards, to the most fabulous wagyu beef, and organic grains grown an hour away from our premises. We live in an area of South East South Australia that is known for our fresh air, clean limestone filtered water and rich volcanic soil that all combine to produce some of the best quality and most delicious food in Australia.

I had the love and passion for locally sourced, meticulously showcased food, but needed the business skills to manage our new venture, which is what led me to Innovative Business Training (IBT). Starting a new business from scratch, I was time-poor, and needed a training solution that I could fit into my daily schedule, a course that would be able to teach me new operational and administrative skills along with business tools I could use at a pace that suited my needs and using methods I could easily grasp.

I was hesitant before beginning my course about how I would be able to study and succeed in regional South Australia without attending a training premises, but IBT offered flexibility with how I studied and the blended mode of delivery was perfect for the way I learn and my busy schedule. The personal mentoring was invaluable to me, and I was able to continue setting up our business, putting my newly learned skills to use straight away, with help and support only a phone call or email away. We were thrilled to welcome IBT Director, Wendy Tagliabue into the Limestone Coast Pantry for a work site visit where she offered relevant and welcomed advice on refining what I had been learning to directly relate it back to our business.

In my management role, I’m responsible for staff training which previously would have terrified me, but I’m surprised with just how effectively I have used my new skills learnt through IBT to provide training for our staff, and with a new-found confidence in my skills as a trainer, there’s no stopping me now in pursuing excellence both in our business and my personal life.

I love how up to date and relevant all the units of study are to our business, touching on everything from e-business tools, to finance, keeping records, workplace health and safety to sustainability and many more. I was so glad we chose IBT to deliver our business training.

Thank you to Wendy and all the IBT trainers for your guidance, your commitment to mentoring students and the professional, flexible and relevant way you conduct your training.

Learn more and register your interest here http://www.innovativebusinesstraining.edu.au/enquire/ and the team will get back to you!

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