Ground Cover North : Ground Cover 063 August 2006 - North
NVT/Go Grains GROUND COVER AUGUST 2006 24 HOBART MELBOURNE SYDNEY PERTH BRISBANE ADELAIDE NVT 2005 Results from the 2005 trials are now available on the National Variety Trials (NVT) database at www.nvtonline.com.au. NVT manager Alan Bedggood says the trial data is now available to growers, but they should bear in mind that the 2005 season was not a typical year and interpretation of the trial results have to be made with caution. "Frost was a problem during the growing season at many NVT sites and may distor t the results," Mr Bedggood says. "As well, disease was prevalent at a number of sites and some varieties were more prone to yield losses." Mr Bedggood explains that the effect of disease is not controlled at NVT sites and disease resistance traits stand out: "This means management implications (the effor t and costs) can be assessed for varieties more prone to disease." NVT 2006 The second year of National Variety Trials has been sown at similar locations to last year, with more than 570 trials planned for the 10 field crops covered by NVT at 250 locations across the countr y. "This year we have some extra wheat trials in Central Queensland," Mr Bedggood says. He adds that NVT in 2006 is reflecting farmer activities across the countr y. "The trials have been sown in most areas but the ver y dr y post-seeding period has prevented weed control activity." NATIONAL VARIETY TRIALS UPDATE Across the nation: the spread of NVT sites. GO GRAINS BY TRISH GRIFFITHS Accredited Practising Dietitian; Executive Manager, Go Grains Health & Nutrition Ltd WHOLEGRAINS -- THE SUM OF THE PARTS IS AS GOOD AS THE WHOLE n When it comes to being healthy, grains that have been milled to flour are equal to – and perhaps even better than – grains that have not been milled, providing the germ and bran are retained. This is the message delivered by Professor David Jacobs, visiting international grains and health researcher, to health professionals, food manufacturers and food regulators during a recent visit to Australia. As Professor of Epidemiology in the School of Public Health, University of Minnesota, he has done extensive work in relation to diet and other risk factors for cardiovascular disease and diabetes. Professor Jacobs was also the lead researcher in several large international studies showing an association between consumption of wholegrains and reduced risks of chronic disease. Professor Jacobs’ research is part of the extensive body of evidence that shows that people who regularly eat wholegrains have lower risks of heart disease, diabetes and some cancers plus better long-term weight control than people who rarely eat such foods. Wholegrain foods such as wholemeal and mixed grain breads, wholegrain breakfast cereals, oats, brown rice and wholemeal pasta contain all the components of the grain – germ, bran and endosperm – and processing does not reduce the protective effect. In fact, Professor Jacobs believes that milling grains may increase the digestibility of nutrients, adding to the beneficial effect. This endorsement is of particular interest to Go Grains which, after four years of negotiations with Food Standards Australia New Zealand (FSANZ), including several rounds of public consultation, successfully had the definition of ‘wholegrain’ in Australian food regulations amended from ‘unmilled’ grains to include grains that have been milled, flaked and kibbled. This has opened the way for the Australian grains industry to benefit from the current worldwide interest in wholegrains by allowing a wider range of foods to promote their wholegrain content. In the US, the nutritional benefits of wholegrain have provided the industry with an opportunity to bounce back from the ‘low carb’ fad. The value of the US bread market increased 1.1 per cent between 2004 and 2005, with consumption of ‘whole wheat’ bread increasing from 43.8 per cent in 2003 to 46.4 per cent in 2005. Professor Jacobs was in Australia to address an audience of more than 700 health professionals at the Dietitians Association of Australia’s 24th National Conference in Sydney. His visit was hosted by Go Grains Health and Nutrition. He spoke at a breakfast function arranged by Go Grains for member companies and visited several food companies to discuss the future direction of grains and health research and provide valuable insight into potential marketing opportunities for grain-based products. GRDC Research Code GOG00001 More information: www.gograins.com.au BY REBECCA THYER n Winter cereals are helping mixed farmers in south-western Victoria improve winter feed options for their Merinos and other livestock. In a Grain & Graze project led by farmer- research group Southern Farming Systems, winter cereals have been sown into existing lucerne stands to boost its winter grazing role. Project leader Cam Nicholson says total production from the cereal and lucerne combined is about 40 per cent better than the lucerne alone, and sowing barley and oats into lucerne has no measurable impact on subsequent spring and summer production. For many mixed farmers in south- western Victoria lucerne is a valuable break crop, improving soil nitrogen and providing an opportunity to control problem weeds and diseases, he says. “Unfortunately, poor winter growth and sub-optimal growth rates from stock grazing lucerne in spring and summer makes lucerne unattractive in the cropping rotation.” Sowing a winter cereal into an existing lucerne stand addresses poor winter production. Mr Nicholson says the cereal crop is grazed during winter in a rotation. In mid- spring it is grazed heavily (below 100 millimetres in height) to eat out the cereal growing points, effectively killing the plant. No herbicides are used and the lucerne grows through the remaining cereal stubble. He estimates the cost of sowing a cereal through lucerne to be less than $200 a hectare, with the potential to produce more than 250 kilograms of additional liveweight per hectare. One mixed farmer trialling a barley/ lucerne option is Peter Hirth, who crops wheat, barley, canola, oats and peas, and runs 2500 Merinos on his 515ha property. It is the first time Mr Hirth has sown barley into his lucerne stand. Using the variety DictatorA, a feed barley, he drilled the barley in with a disc drill so as not to damage the lucerne stand. He says the barley will provide extra feed for his Merinos when there’s very little growth. “It means we have feed at a time of year when we normally need to fill the gap.” Mr Hirth has only just begun the trial, and is pleased with the results so far. “We use lucerne as a break crop to manage resistant ryegrass, as legumes and other options don’t work well in this area,” he says. “So a barley/ lucerne mix benefits my cropping program on the one hand and my livestock on the other. “The barley produces good winter feed and it gives us a few options – to graze it or cut it for hay.” More information: Cam Nicholson, 0417 311 098, email@example.com; Peter Hirth, 0417 519 672, firstname.lastname@example.org CEREAL MIX BOOSTS WINTER FEED 'People who regularly eat wholegrains have lower risks of heart disease, diabetes and some cancers' FINDING NVT LOCATIONS - WWW.NVTONLINE.COM.AU The NVT Online database (www.nvtonline.com.au) provides several search methods for find- ing trials in your area. One of the easiest is for the database to display trial locations on a map. SEARCHING BY MAP This search method can be combined with any other search criteria for any trial with a recorded GPS coordinate. n to use the map-based search you must select at least a State n then click on Town and enter the town which is closest to the area you are interested in n ensure that you have checked the 'Display search results on a map' box n click on Search Depending on the town you have chosen, the system may ask you to verify the location to ensure you have the right one. For example, trials may have been recorded at Nor th Wagga Wagga or East Wagga Wagga. NVT Online will then return the search results on a map. Using the zoom bar at the bottom of the map you can zoom in or out.
Ground Cover 062 June-July 2006 - North
Ground Cover 064 September-October 2006 - North