Territory Stories

Plant Industries NT newsletter



Plant Industries NT newsletter

Other title

PINT newsletter


Northern Territory. Department of Primary Industries and Fisheries, Plant Industries Division


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Made available via the Publications (Legal Deposit) Act 2004 (NT).; This publication contains may contain links to external sites. These external sites may no longer be active.




Horticulture industry; Agriculture; Rangelands; Management; Northern Territory; Periodicals; Cattle industry

Publisher name

Northern Territory Government

Place of publication



Plant Industries NT newsletter


Newsletter, February 2012

File type



Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



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6 and are willing to share your thoughts and experiences, then please get in touch to organise a time for me to visit to conduct the survey. Individual information collected in the survey will remain confidential and participation is voluntary. Ill be on the road in March to conduct the survey and look forward to meeting a range of Fodder Industry value chain members. You can contact me on phone: 08 8973 9738 or via email: Melissa.fraser@nt.gov.au if you would like to participate in the 2012 Fodder Industry Survey. Understanding the nitrogen equation in NT fodder systems Melissa Fraser, Regional Team Leader, Plant Industries Group At an industry meeting held in July 2011, one of the priorities identified by participants was the development of a ready reckoner for nitrogen (N) application in grass hay crops to assess the cost/benefit (both yield and quality) of fertiliser application. Little research has been conducted on the N requirements of grass crops grown for hay in the NT. A paddock at Maneroo Station in the Douglas Daly region has been selected to establish a trial investigating crop rotations and N fertiliser requirements during the 2011/12 wet season. The trial site is a 200 ha paddock planted to Cavalcade (an N fixing legume crop) for the last 3 years. Iin the 2010/11 wet season one third of the paddock was planted to Jarra Finger grass (Digitaria milanjiana) for weed control . During the 2011/12 wet season, another third of the paddock was converted to Jarra, with the final third remaining Cavalcade. The crop rotation combinations at Maneroo provide a good opportunity for assessing the contribution of N by the legume over two successive seasons. The accompanying nitrogen trial will identify assessment of Jarra grass N requirements, and the relative cost/benefit of N application in these systems. Urea was applied at rates of 0, 40, 80 and 160 kg per hectare on January 30 and 99 mm of rain was received in the following 7 days. Plant nutrient content, crop yield and hay quality will be assessed for the different crop and treatment combinations. In addition, a set of comprehensive soil tests will be conducted to determine the carbon and N status of the soil as affected by the treatments. Gross margins for the various N rate/yield/time after Cavalcade will also be prepared. Fig. 1 (a) Second year Jarra crop with no N applied, and; (b) second year Jarra crop with 160 kg of urea applied per hectare. A field day will be held at Maneroo in the coming weeks in conjunction with Fergal OGara and the NTAgA to discuss results and observations to date. Final trial results will be available following crop harvest. This research is jointly funded through the Department of Resources and the NT Agricultural Association, through their Caring for Country Project. For more information on the trial you can contact Mel Fraser at KRS on 8973 9738. mailto:Melissa.fraser@nt.gov.au

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