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Articles 1471 - 1500 of 2354
Full-Text Articles in Physical Sciences and Mathematics
Storage Life Of Farm Dams, G J. Luke, C G. Denby
Storage Life Of Farm Dams, G J. Luke, C G. Denby
Resource management technical reports
No abstract provided.
Consumption Of Water By Livestock, G J. Luke
Consumption Of Water By Livestock, G J. Luke
Resource management technical reports
No abstract provided.
Estimation Of Runoff Volumes For Ungauged Catchments In The Agricultural Areas Of Western Australia, J R. Davies, D J. Mcfarlane
Estimation Of Runoff Volumes For Ungauged Catchments In The Agricultural Areas Of Western Australia, J R. Davies, D J. Mcfarlane
Resource management technical reports
Describes an analysis of flood runoff volumes from 16 small, gauged catchments in the agricultural areas of south western Australia. It also describes methods for estimating flood runoff volumes from ungauged catchments. The independent variables found to be statistically significant in explaining the variability in flood runoff volumes from the gauged catchments were catchment area, mean annual rainfall and the percentage of the catchment that was cleared. No soil factor was found to be significant.
Water Erosion Survey In The Northam District After Storms In June 1986, D J. Mcfarlane, A T. Ryder
Water Erosion Survey In The Northam District After Storms In June 1986, D J. Mcfarlane, A T. Ryder
Resource management technical reports
No abstract provided.
Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards
Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards
Resource management technical reports
The problems of wind erosion in part of the south coast of Western Australian sandplain area were described previously (Gorddard et al, 1981) with 7.3 per cent of cleared and 18.3 per cent of the cropped area showing evidence of sand blasting. Department of Agriculture trials have shown that the loss of the top four millimetres of top soil from pastured paddocks can reduce following crop yields by up to 20 per cent (Marsh and Carter, 1983). Animal production problems associated with wind erosion of soils have not been quantified, but a number of problems such as reduced carrying capacity …
Survey Of Research Priorities In Water Erosion, Waterlogging And Flooding In South-Western Australia, D J. Mcfarlane, E G. Barrett-Lennard
Survey Of Research Priorities In Water Erosion, Waterlogging And Flooding In South-Western Australia, D J. Mcfarlane, E G. Barrett-Lennard
Resource management technical reports
No abstract provided.
Barley Agronomy., K. J. Young
Barley Agronomy., K. J. Young
Experimental Summaries - Plant Research
Trial 87E6, 87MT45, 87SG11, 87ES8
Locations: Esperance Downs Research Station, Mount Barker Research Station, Salmon Gums Research Station, Melijinup Field Station,
Barley variety x time of planting
To study phenological development and its effect on yield in a range of barley cultivars at four planting dates.
Trial 87E42
Aphicide toxicology x barley variety.
Location: EDRS
To measure the effect of disulfoton (Disyston *R) applied as granules at seeding on barley, to determine if there is any phytotoxicity.
Trial 87ES40, 87E32
Barley variety x cereal aphids.
Location: Malijinup Field Station, Esperance Downs Research Station
To study the development of cereal aphids …
Agronomy Of Dwarf Oats., W. K. Anderson, R. Mclean, R. Mctaggart, G. Parlevliet, J. Warren, M. Page
Agronomy Of Dwarf Oats., W. K. Anderson, R. Mclean, R. Mctaggart, G. Parlevliet, J. Warren, M. Page
Experimental Summaries - Plant Research
Location: Mt Barker Research Station, Pardelup Prison Farm, Kojonup, Williams and Mayanup.
Time of sowing x oat cultivars, 87AL6, 87BR5, 87KA4, 87MT4, 87NA7.
N rates x oat cultivars, 87AL4, 87BR8, 87KA2, 87MT2, 87NA5.
Seed rates x oat cultivars, 87AL5, 87BR4, 87KA3, 87MT3, 87NA6.
Oat cultivar factorial, 87AL7, 87BR6, 87KA5, 87MT5, 87NA8.
Field Peas In The Wheatbelt, R J. French
Field Peas In The Wheatbelt, R J. French
Journal of the Department of Agriculture, Western Australia, Series 4
Plantings of lupins in the Western Australian wheatbelt increased rapidly in the late 1970s and early 980s as improved varieties became available and farmers realised the benefits to be gained from growing grain legumes. Grain legumes are useful not simply as alternative cash crops. They provide 'fixed' atmospheric nitrogewn to following cereal crops and act as a cleaning crop to break cereal disease cycles. They are also valuable sheep feed.
In 1975, throughout the wheatbelt, the Department of Agriculture began a comparison of several alternative legumes. The crops included field peas, faba beans, chickpeas, lentills and various vetches. Field peas …
Management Measures For The Shark Bay Snapper Fishery 1987 Season., P. Millington
Management Measures For The Shark Bay Snapper Fishery 1987 Season., P. Millington
Fisheries management papers
The 1986 Shark Bay snapper fishing season mirrored in almost all respects the situation which will apply when the limited entry regime is put into effect. It was thus an opportunity to assess how effective the measures recommended in the Report of the Shark Bay Snapper Fishery Working Group were in reducing effort in the fishery.
The Esperance Rock Lobster Working Group Interim Report By The Chairman Mr. A. Pallot To The Western Australia Fishing Industry., A. Pallot
Fisheries management papers
In July 1985 the Minister for Fisheries released a discussion paper titled "Arrangements for entry to all fisheries off and along the Western Australian coast" for consideration by all members of the fishing industry. The Australian Fishing Industry Council (W.A. Branch), now the Western Australian Fishing Industry Council (Inc), responded to the discussion paper in March 1986. The following were included in the Council's recommendations: 1. The rock lobster fishery near Esperance be a limited entry fishery. 2. The bench mark date for determining access by April 30, 1985. 3. that the Minister for fisheries establish a representative Government/Industry Working …
The Report Of The Fish Farming Legislative Review Committee., P. Rogers
The Report Of The Fish Farming Legislative Review Committee., P. Rogers
Fisheries management papers
In 1975, amendments to the Fisheries Act provided for the licensing and control of commercial fish farming activities and , for specific declared species, further controls on their processing and marketing. To date, marron has been the only species to be declared a "farm fish". During the last decade, much of the State's aquaculture impetus has focused on marron although more recently greater attention has been directed towards trout, yabbies and freshwater aquarium fish species. On November 19, 1984, the Marron Growers Association of Western Australia (Inc) wrote to the Minister for Fisheries and Wildlife, seeding a general review of …
The Role Of Minimum Tillage On The South Coast Sandplain Soil : A Literature Review, W L. Crabtree
The Role Of Minimum Tillage On The South Coast Sandplain Soil : A Literature Review, W L. Crabtree
Resource management technical reports
No abstract provided.
The Report Of The Southern Western Australian Shark Working Group., P. Millington
The Report Of The Southern Western Australian Shark Working Group., P. Millington
Fisheries management papers
The southern Western Australian Shark Working Group was formed to investigate the southern shark fishery and advise the Minister for Fisheries on options for future management. Membership comprised six fishermen from regional professional fishermen's associations and two Fisheries Department officers. The Working Group considered that each shark fisherman obtaining an entitlement should then be restricted in the length of fishing gear he can use and the number of months he can fish. The individual's time and gear entitlement would be approximately that length of gear being used and time spent fishing in a period shortly before the bench mark date. …
Damage Report Of The West Coast Wildfires In The Cervantes-Hill River, North Lancelin And North Yanchep Areas January 1986 And The Effects On The Western Australian Beekeeping Industry, R C. Burking, A. C. Kessell
Damage Report Of The West Coast Wildfires In The Cervantes-Hill River, North Lancelin And North Yanchep Areas January 1986 And The Effects On The Western Australian Beekeeping Industry, R C. Burking, A. C. Kessell
Apiculture research reports
No abstract provided.
The Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia. Survival And Fecundity Of Wild Radish (Raphanus Raphanistrum) Populations In Lupin Crops. Reproduction And Seed Persistence In Arum Lily (Zantedeschia Aethiopica)., F. D. Panetta
Experimental Summaries - Plant Research
After ripening and fates of field-stored skeleton weed seeds, 86BA11. Predation on seeds of skeleton weed, 86BA10. The effects of wetting/drying cycles upon the fates of skeleton weed seeds, 84PE42. Skeleton weed demographic studies, 84BA17. Radish control in lupins, 86N085. Seed production and seed persistence in Arum lily, 86PE56. Germination studies on fresh and stored seeds of Arum lily, 86PE57.
Phosphorus Nutrition, M Da Bolland
Phosphorus Nutrition, M Da Bolland
Experimental Summaries - Plant Research
76WH10, 77WH2, 77MT2, Phosphorus sources trial.
84NO69, 84E31, 84M63, Residual value of phosphate fertilisers.
86M1, Residual value of superphosphates for lupins and wheat grown in a 1-year lupin: 1-year wheat rotation.
85NO63, 85KA79, Assessment of different soil and plant tissue methods for determining the phosphorus requirement of several crop and pasture species.
85KA78, Assessment of different soil and plant tissue methods for determining the P requirements of crop and pasture species.
86N01, Residual value of superphosphate.
85BA34, Residual value of superphosphate for lupins, wheat and barley.
85BA35, Residual value of superphosphate for lupins:oat:wheat rotation
Studies On The Effects Of Nutrition And Tillage On Cereal Root Diseases, R F. Brennan
Studies On The Effects Of Nutrition And Tillage On Cereal Root Diseases, R F. Brennan
Experimental Summaries - Plant Research
Take-all and manganese / ammonium interaction, 84E1.
Split applications of nitrogen and take-all, 84E2.
Take-all and manganese / ammonium interaction, 84LG2.
Micronutrients (Cu, Zn) and Take-all.
Nitrogen and phosphorus rates and Take-all, 83ES42.
Nitrogen and phosphorus rates and Take-all, 83ES43.
Nitrogen and phosphorus rates and Take-all, 83ES41.
Foliar Wheat Diseases And Cereal Smuts., R. Loughman, A. E. Twigg
Foliar Wheat Diseases And Cereal Smuts., R. Loughman, A. E. Twigg
Experimental Summaries - Plant Research
Chemical control of leaf spots of wheat, 86BA41, 86MT49. Semi-natural inoculum for plant breeders plots, 86MD2. Chemical control of soil-borne flag smut, 86ME73, 86M032. Chemical control of barley loose smut, 86AL50, 86KA59, 86MT47. Chemical control of loose smut in barley with different levels of seed infections, 86MT48. Disease characterisation of cereal variety trial stage 4 sites.
Pasture Manipulation And Root Diseases Of Cereals., W. Macleod
Pasture Manipulation And Root Diseases Of Cereals., W. Macleod
Experimental Summaries - Plant Research
Rotation for wheat comparing pure clover ley with a pasture ley, 79El5. Pasture renovation techniques and crop production in a 1:2 rotation, 81E35. Pasture manipulation - effects on take-all, 85E32. Spraytopping herbicides and take-all, 85MT58. Timing of spraytopping and herbicides, 86MT64, 86E55.
The Ecology Of Skeleton Weed In Western Australia, Afghan Thistle Ecology, Biology Of Gorteria Personata., J. Dodd
Experimental Summaries - Plant Research
The ecology of skeleton weed in Western Australia, 84BA17. Afghan thistle ecology, 84N050. Regenerative ability of stem and root segments, 85PE51. Biology of Gorteria personata, 86M03, 86N08. Life cycle, 86M03, 86N08. Germination requirements, 86PE7.
Weed Seed Ecology., A. H. Cheam
Weed Seed Ecology., A. H. Cheam
Experimental Summaries - Plant Research
Population dynamics of Brome grass in relation to control systems, 86C1. Wild radish control in lupins, 86N085. Preplanting operations to stimulate Doublegee emergence, 85C89. Postplanting operations to stimulate Doublegee emergence, 85C90.
Herbicide Tolerance Of Recommended Cereal Varieties, D. Bowran, R. Watson
Herbicide Tolerance Of Recommended Cereal Varieties, D. Bowran, R. Watson
Experimental Summaries - Plant Research
Herbicide tolerance of recommended cereal varieties Barley response to Glean, 86 GE 52, 86 GE 56, 86N0107, 86N0112, 86KA74, 86KA78. Tolerance of lupins to selected broadleaf herbicides, 86 GE 59, 86 GE 49. Herbicide tolerance of recommended cereal varieties, 86ME98. Herbicide tolerance of recommended cereal varieties effect of non-phenoxy herbicides on phenoxy sensitive wheat varieties, 86A12, 86A13. Herbicide tolerance of recommended cereal varieties barley response to metribuzin, 86LG37, 86LG59. Tolerance of recommended pea varieties to herbicides, 86NO111. Stirling barley tolerance to Glean and Ally, 8 6N0119. Effect of plant-back time on response to Till-master, 86WH48. Tolerance of lupins to selected …
Crop Oils And Herbicides, Crop Establishments, Weed Control,, Isoproturon Evaluation, Radish Control, Topping Trial 1985 Report., R Madin, A Lindsay
Crop Oils And Herbicides, Crop Establishments, Weed Control,, Isoproturon Evaluation, Radish Control, Topping Trial 1985 Report., R Madin, A Lindsay
Experimental Summaries - Plant Research
Grass control with Hoegrass plus oil (Rates of Hoegrass + oil). TRIAL 1. 86 NO 121. Grass and broadleaf weed control with herbicides and oil, 86 MO 51. Grass control with Fusilade and crop oil (Lupins) 86 NO 120. Grass control with Fusilade and crop oil (Lupins), 86 KA 89. Grass control with Hoegrass, Fusilade and crop oil (Serena medic) 86 MO 44. Hoegrass and Oil Tolerance, 86 NO 124. Hoegrass Rates x Oils for Wild Oats Control in Wheat, 86 NO 118. The effect of timing of Roundup CT and Sprayseed application and cultivation on crop establishment and growth, …
1. Cereal Agronomy, 2. Pesticides, J. H. Moore, G. R. Dean
1. Cereal Agronomy, 2. Pesticides, J. H. Moore, G. R. Dean
Experimental Summaries - Plant Research
Best bet minimum tillage, 86AL38, 86AL39, 86AL40. Minimum tillage factors, 86AL62. South coast potential yield factors, 86 AL 81, 86AL82. Time of planting by variety interaction - south coast, 86AL87. Capeweed control in cereals with residual herbicides, 86AL45. Sprayseed/glean, roundup/glean tank mixes for grass control, 86AL43. Sorrel control systems, 86AL43. Sorrel control for pasture establishment. Pre plant ally on barley, 86AL86. Pre plant ally on oats, 86AL84, 86AL85. Pre plant ally on clover, 86AL63. Pre plant ally on peas, 86AL65. Pre plant ally on rape, 86AL67. Double knockdowns, 86AL68, 86MT67. Rate, time of spraying and scarifying interaction on pre-p1ant herbicides, …
Capeweed Control In Cereals., J. R. Peirce, B. J. Rayner
Capeweed Control In Cereals., J. R. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
Capeweed control in cereals pre-sowing control, 86WH58. Capeweed control in cereals post-emergence control, 86WH59. Capeweed control in cereals post-emergence control with Reglone®, 86WH69. Capeweed control in cereals post-emergence control with various products, 86WH70. Capeweed control in cereals post-emergence control with mixtures, 86WH74. Lovegrass (Eragrostis curvula) control along roadsides, 86WH75. Chemical control of Four o'Clock (Oxalis purpurea) in cereals, 86N0110. Hoegrass, different rates with oils or wetting agent for wild oat control in cereals, 86N0118. Chemicals x depth of blade plowing to control couch, 86N010. Chemical x cultural control of couch (long-term), 85N092. Chemical control of couch prior to cereal establishment, …
Effectiveness Of Various Herbicides On Hoegrass Resistant Wild Oats. Effect Of Herbicides On Hoegrass Resistant Annual Ryegrass. Growth Of Cereals Planted In Simazine Treated Soil. Growth Of Wheat One Year After Simazine. Glean Use On Drier Alkaline Soils., T. Piper
Experimental Summaries - Plant Research
86N0113, 86N0114, 86N0115, 86N0116, 86N0102, 86N0103, 86N0103, 86N0104, 86N0105, 85WH54, 85ME56, 85N27, 86WH51, 86N34, 85N30, 86WH52, 86N33, 86WH53, 86SG25,
Biological Control Of Parkinsonia, W M. Woods
Biological Control Of Parkinsonia, W M. Woods
Journal of the Department of Agriculture, Western Australia, Series 4
One of the most troublesome weeds in northern Australia'a lastoral country is Parkinsonia aculeata, commonly called Parkinsonia, Jerusalem Thorn, Palo Verde or Retama. In 983 Western Australia, ueensland and the Northern Territory started a joint biological control programme against this perst by sending the author overseas to search for its natural predators in southern USA, Mexico and Central America. A few insects show promise and one, a bruchid beetle Mimosetes ulkei, is being tested under Quarantine in Queensland.
Wheat Growth On Saline Waterlogged Soils, E G. Barrett-Lennard
Wheat Growth On Saline Waterlogged Soils, E G. Barrett-Lennard
Journal of the Department of Agriculture, Western Australia, Series 4
Studies of the growth of plants on salt-affected soils have focused maily on the effects of salt. However, many salt-affected soils are also subject to waterlogging. Glasshouse experiments conducted by the Department of Agriculture have shown that although wheat growth is not greatly reduced by low levels of salt under well drained conditions, under waterlogged conditions such levels of salt can have a severe effect.
Row Spacing And Cereal Crop Yield, R N. Burch, M. W. Perry
Row Spacing And Cereal Crop Yield, R N. Burch, M. W. Perry
Journal of the Department of Agriculture, Western Australia, Series 4
Cereal growers in western Australia have, traditionally, burned cereal stubbles. Burning stubble residues reduces weed seed populations and fungal pathogens, but its main purpose has been to eliminate straw which might cause blockages od seeding machinery and por see-bed preparation in the time critical seeding operation.
In 982, the Department of Agriculture began a project to determine whether wider spaced rows also depressed cereal yields in Western Australia. This article summarises some of the important results from that work.