281. Nitrous oxide emission from acid sulfate sugarcane soils on the coastal lowlands

• Authors:
  • Macdonald, B. C. T.
  • Bryant, G.
  • White, I.
  • Moody, P.
  • Stainlay, W.
  • Dalal, R. C.
  • Denmead, O. T.
• Source: Proceedings of the Australian Society of Sugar Cane Technologists
• Volume: 28
• Year: 2006

282. Environmental and management drivers of nitrous oxide emissions in Australian agro-ecosystems

• Authors:
  • Leuning, R.
  • Eckard, R.
  • Galbally, I. E.
  • Meyer, C. P.
  • Kelly, K.
  • Phillips, F.
  • Barker-Reid, F.
  • Gates, W.
  • Grace, P.
  • Barton, L.
  • Porter, B.
  • Bentley, S. T.
• Source: Proceedings: workshop on agricultural air quality: state of the science
• Year: 2006

283. A re-evaluation of nitrous oxide emissions from Australian agro-ecosystems

• Authors:
  • Meyer, C. P.
  • Kelly, K.
  • Phillips, F.
  • Barker-Reid, F.
  • Gates, W.
  • Grace, P.
  • Barton, L.
  • Porter, B.
  • Bentley, S. T.
  • Leuning, R.
  • Galbally, I. E.
  • Turner, D.
  • Eckard, R.
• Source: INTERACT 2006: air, water & earth
• Year: 2006

284. The potential impact of climate change on Australia’s soil organic carbon resources

• Authors:
  • Grace, P. R.
  • Post, W. M.
  • Hennessy, K.
• Source: Carbon Balance and Management
• Volume: 1
• Year: 2006

285. Modelling nitrous oxide abatement strategies in intensive pasture systems

• Authors:
  • Chapman, D.
  • Johnson, I.
  • Eckard, R.
• Source: International Congress Series
• Volume: 1293
• Year: 2006

286. Life Cycle Inventory and Life Cycle Assessment for Windrow Composting Systems

• Authors:
  • Recycled Organics Unit
• Year: 2006

287. Weed control in summer crops 2005-06.

• Authors:
  • Ferguson, N.
  • Storrie, A.
  • Cook, T.
• Source: Weed control in summer crops 2005-06
• Year: 2006
• Summary: This publication provides a guide to weed control in grain and forage sorghum, maize, sweetcorn, soyabean, sunflower, azuki bean [ Vigna angularis], cowpea, lablab, mung bean, pigeon pea, navy bean [ Phaseolus vulgaris], groundnut and millet in New South Wales, Australia. Information is presented on poison warnings, safety directions and first aid instructions on herbicide labels; successful use of herbicides; managing legal responsibilities in applying herbicides; testing for herbicide residues; tips for tankmixing herbicides; use of adjuvants, surfactants and oils with herbicides; water quality for herbicide application; reduction of herbicide spray loss (drift); nozzle selection for ground application; boomspray preparation and calibration; and cleaning and decontamination of boomsprays. Tabulated data are also given on the compatibility of herbicides with rotation and tillage practices to effectively control weeds affecting summer crops.

288. An Australian Approach to chemical residue management in grains - programs and results.

• Authors:
  • Healy, K.
  • Reichstein, I.
  • Murray, B.
• Source: 9th International Working Conference on Stored Product Protection -- New Chemicals and Food Residues PS3-2-6324
• Year: 2006
• Summary: The National Residue Survey (NRS) is an operational unit of the Australian Government Department of Agriculture, Fisheries and Forestry. NRS has managed and operated residue testing programs (including meat products and grains) for over 40 years. The NRS Grains Residue Testing Program is fully industry funded via a 0.015% ad valorem levy on grain growers. This Residue Testing Program complements that undertaken by grain marketers/handlers from grower receivals to bulk storage. Noting that NRS does not have a regulatory role, the Grains Program is viewed as providing independent verification of the residue status of Australian grain at the point of out-turn for export and for receival at grain processors such as flour mills. The Grains Program covers wheat, barley, oat, sorghum, canola, field pea, chickpea and lupin. By 2007, it is expected to extend to all tradeable grains including lentil, soybean, maize, triticale, sunflower, mung bean and faba/broad bean. Each year, the Grains Program is independently reviewed and a prospective monitoring plan circulated to the Grains Council of Australia and State affiliates, and peak grain industry bodies for endorsement. The Grains Program monitoring plan specifies that approximately 5,500 grain samples are collected per annum from export shipments and containers, flour mills, feedmills, feedlots and maltsters. About 4,000 samples are collected from export shipments where every hatch of every ship from every Australian grain export terminal is sampled during loading. The monitoring plan stipulates that samples be sent to an accredited proficiency-tested laboratory and residue testing results reported to the grain marketer/handler within 14 days of sample collection. Grain samples are subjected to a chemical screen covering a range of insecticides, fungicides and environmental contaminants. These residue testing results are reported against Australian MRLs established by Food Standards Australia and New Zealand.

289. Residual values of soil-applied zinc fertiliser for early vegetative growth of six crop species

• Authors:
  • Bolland, M. D. A.
  • Brennan, R. F.
• Source: Australian Journal of Experimental Agriculture
• Volume: 46
• Issue: 10
• Year: 2006
• Summary: Zinc (Zn) oxide is the most widely used fertiliser for the predominantly acidic to neutral soils of southwestern Australia. For these soils, the residual value of Zn oxide has been determined for wheat and lupin, but not for barley, oats, canola and triticale, which are also grown in the region. Just after termination of a long-term (17 year) field experiment that measured the residual value of Zn oxide for wheat, soil samples were collected from selected plots to use in 2 glasshouse experiments. The field experiment was on previously unfertilised, newly cleared duplex soil (sand with much lateritic ironstone gravel over clay) and before the experiment started DTPA extractable Zn for the top 10 cm of soil was 17 years for triticale. The 1.0 kg Zn/ha treatment remained fully effective for all crop species. As determined from projected estimates of the data, the time taken for Zn concentrations in young mature growth to reach critical values, the residual value of the 0.5 and 1.0 kg Zn/ ha treatments were least for wheat, barley and oats, were greater for lupin and canola, and greatest for triticale. There were a total of 7 wheat crops and 10 pasture years during the 17 years of the field experiment. For the 0.5 and 1.0 kg Zn/ha treatment applied in the field in 1983, 30 - 34% of the applied Zn was removed in grain of the 7 wheat crops grown before soil samples were collected to do the glasshouse experiments. The pasture was grazed by sheep and it was estimated that 16 - 24% of the Zn applied in 1983 may have been removed in wool and meat. Removal of Zn in grain and animal products therefore decreased the residual value of the Zn oxide fertiliser.

290. Weed control in winter crops 2006.

• Authors:
  • Dellow, J. J.
  • Schipp, A.
  • Haskins, B.
  • Brooke, G.
• Source: Weed control in winter crops 2006
• Year: 2006
• Summary: This publication provides a guide to chemical weed control during different growth stages of fallow, wheat, barley, oats, rye, triticale, rape, safflower, lentil, linseed, lupin, chickpea, faba bean and field pea in New South Wales, Australia. Recommended timing of herbicide application is given. Sensitivity of winter crop cultivars to herbicides is outlined. Information is also included on crop rotation, use of surfactants and oils, water quality for herbicide application, spray equipment clean-up, herbicide spray drift, compatibility of winter crop herbicides and insecticides, and common retail prices of chemicals used on winter crops.