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- Western Australia (27)
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Articles 1 - 30 of 33
Full-Text Articles in Life Sciences
Land Systems Of The Kimberley Region, Western Australia, A L. Payne, N Schoknecht
Land Systems Of The Kimberley Region, Western Australia, A L. Payne, N Schoknecht
Technical Bulletins
The Land Systems of the Kimberley Region Report describes and maps the landscapes, soils and vegetation of the Kimberley region. This report is a consolidation of surveys carried out by different organisations, across different areas of the Kimberley, since the 1940s. The Kimberley region, as defined in this bulletin, covers 330 070km². The report categorises the Kimberley region into 111 land systems. Under each land system, the report identifies the vulnerabilities of those areas, and provides recommendations on how to achieve sustainable use. The report also publishes pasture types for the entire region and the grazing potential for each pasture, …
An Inventory And Condition Survey Of The Western Australian Part Of The Nullarbor Region, P A. Waddell, A K. Gardner, P Hennig
An Inventory And Condition Survey Of The Western Australian Part Of The Nullarbor Region, P A. Waddell, A K. Gardner, P Hennig
Technical Bulletins
The inventory and condition survey of the Western Australian part of the Nullarbor region, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2005 and 2007, describes and maps the natural resources of the region. This survey report provides a baseline record of the existence and condition of the area's natural resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The Nullarbor region has …
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
Technical Bulletins
The inventory and condition survey of the lower Murchison River area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2002 and 2003, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. This survey report presents …
An Inventory Of Rangelands In Part Of The Broome Shire, Western Australia, W E. Cotching
An Inventory Of Rangelands In Part Of The Broome Shire, Western Australia, W E. Cotching
Technical Bulletins
The inventory of rangelands in part of the Broome Shire in Western Australia was undertaken by DAFWA between 1989 and 1990. It describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The survey of part of the Broome Shire …
An Inventory And Condition Survey Of The Pilbara Region, Western Australia, A M E Van Vreeswyk, K A. Leighton, A L. Payne, P Hennig
An Inventory And Condition Survey Of The Pilbara Region, Western Australia, A M E Van Vreeswyk, K A. Leighton, A L. Payne, P Hennig
Technical Bulletins
The inventory and condition survey of the Pilbara region, undertaken by the Department of Agriculture, Western Australia between 1995 and 1999, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers about 181 723 km². Seven …
An Inventory And Condition Survey Of The Sandstone-Yalgoo-Paynes Find Area, Western Australia, A L. Payne, A M E Van Vreeswyk, K A. Leighton, H J. Pringle, P Hennig
An Inventory And Condition Survey Of The Sandstone-Yalgoo-Paynes Find Area, Western Australia, A L. Payne, A M E Van Vreeswyk, K A. Leighton, H J. Pringle, P Hennig
Technical Bulletins
The inventory and condition survey of the Sandstone-Yalgoo-Paynes Find area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1992 and 1993, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the area’s natural resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers about …
Analysis Of Western Australian Wool Quality On A Shire Basis, John Stanton A/Prof, Lindy Coss
Analysis Of Western Australian Wool Quality On A Shire Basis, John Stanton A/Prof, Lindy Coss
Technical Bulletins
No abstract provided.
Processing Results Of Western Australian Wool, John Stanton A/Prof, Lindy Coss, Peter Metcalf
Processing Results Of Western Australian Wool, John Stanton A/Prof, Lindy Coss, Peter Metcalf
Technical Bulletins
Despite a perception by some that Western Australian wool "processes poorly", this study found that consignments processed : 1) into long tops suited for worsted weaving 2) into longer than predicted tops 3) with the same consistency as other Australian consignments.
An Inventory And Condition Survey Of Rangelands In The North-Eastern Goldfields, Western Australia, H J. Pringle, S A. Gilligan, A M E Van Vreeswyk
An Inventory And Condition Survey Of Rangelands In The North-Eastern Goldfields, Western Australia, H J. Pringle, S A. Gilligan, A M E Van Vreeswyk
Technical Bulletins
The inventory and condition survey of the north-eastern Goldfields, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1988 and 1990, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers about 100 …
An Inventory And Condition Survey Of The Murchison River Catchment, Western Australia, Peter James Curry, A L. Payne, K A. Leighton, P Hennig, D A. Blood
An Inventory And Condition Survey Of The Murchison River Catchment, Western Australia, Peter James Curry, A L. Payne, K A. Leighton, P Hennig, D A. Blood
Technical Bulletins
The inventory and condition survey of the Murchison River catchment and surrounds, undertaken by the Department of Agriculture between 1985 and 1988, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed by field work during 1985-88 …
Analysis Of Black Point In Wheat, J M. Wilson
Analysis Of Black Point In Wheat, J M. Wilson
Technical Bulletins
Fungal staining (black point) of wheat can reduce the quality of grain. The most serious problem is a discolouration of products. Discolouration is a consequence of infection by microorganisms. The most likely cause in Western Australia is a species of the common fungus Alternaria. Infection and discolouration occur between flowering and grain maturity, and the optimum environmental conditions are probably consecutive days of high relative humidity together with warm temperatures.
Growth And Wool Production Of Merino Wethers After Treatment With Testosterone, M A. Johns, A Meldrum, J F. Wallace, K P. Croker, F E. Watson
Growth And Wool Production Of Merino Wethers After Treatment With Testosterone, M A. Johns, A Meldrum, J F. Wallace, K P. Croker, F E. Watson
Technical Bulletins
The results were variable with there being no response to the testosterone treatment of the weaners in year 2 which were weaned onto dry feed. In the other two years, the weaners grazed at the lower stocking rates were heavier and there appeared to be a general increase in the weight of those injected with testosterone. However, the level of response was not consistent and in year 3 there was no response while the sheep grazed green feed for four months or so following weaning.
Seed Production And Hard Seededness Of Trifolium Subterraneum Subsp Brachycalycinum, Michael D A Bolland
Seed Production And Hard Seededness Of Trifolium Subterraneum Subsp Brachycalycinum, Michael D A Bolland
Technical Bulletins
Ungrazed swards of some subsp. brachycalycinum strains produced reasonable seed yields compared with subsp. subterraneum on the sandplain soils and annual Medicago species on the alkaline mallee soils. However, in swards which were grazed by sheep up to the start of flowering, subsp. brachycalycinum produced disappointing seed yields compared with subsp. subterraneum and annual Medicago species. On a sandy soil, prevention of burr burial compared with covering developing burrs with sand drastically reduce ation an inhibiting light factor operates to drastically reduce seed production.
An Inventory And Condition Survey Of Rangelands In The Ashburton River Catchment, Western Australia, A A. Mitchell, A L. Payne, W F. Holman
An Inventory And Condition Survey Of Rangelands In The Ashburton River Catchment, Western Australia, A A. Mitchell, A L. Payne, W F. Holman
Technical Bulletins
The inventory and condition survey of rangelands in the Ashburton River catchment, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1976 and 1978, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed …
Studies On Times Of Lambing In Ewes Grazing Subterranean Clover Based Pastures In Relation To Stocking Rates In South-Western Australia, H Lloyd Davies
Studies On Times Of Lambing In Ewes Grazing Subterranean Clover Based Pastures In Relation To Stocking Rates In South-Western Australia, H Lloyd Davies
Technical Bulletins
The investigation is reported in six parts: effect on ewe liveweight and fertility, lamb losses, effect on lamb growth and subsequent growth after weaning, wool production, pasture production and composition, and conclusions and practical implications. The results show that in the absence of supplementary feeding the physiological requirements of ewes in late pregnancy are better met by spring rather than autumn lambing.
Wheat And Barley Experiments On The Kumarl Soils At Salmon Gums, D A. Collins, Michael D A Bolland, R D. Fletcher
Wheat And Barley Experiments On The Kumarl Soils At Salmon Gums, D A. Collins, Michael D A Bolland, R D. Fletcher
Technical Bulletins
The water-holding capacity of these soils, and their location in a low rainfall area combine to make them marginal for producing grain. In contrast to sowing wheat on ley pasture, mechanically fallowing the year before planting markedly improved grain yields by 1.3 to 4 times.
Serradella, Subterranean Clover And Medic Research, Esperance, Western Australia, Michael D A Bolland
Serradella, Subterranean Clover And Medic Research, Esperance, Western Australia, Michael D A Bolland
Technical Bulletins
Strains of O. compressus which originate from Paros in southern Greece were the earliest flowering serradellas tested. They consistently produced amongst the highest seed yields, are relatively hard-seeded and are worthy of further investigation for deep sands and very acid soils in low rainfall areas. Monthly applications of nitrogenous fertilizer about doubled the herbage yields of serradella in winter.
An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry
An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry
Technical Bulletins
The inventory and condition survey of rangelands in the Carnarvon Basin, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1980 and 1982, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers …
Residual Value Of Rock Phosphate Fertilizers, J W. Bowden, Michael D A Bolland
Residual Value Of Rock Phosphate Fertilizers, J W. Bowden, Michael D A Bolland
Technical Bulletins
The residual value of Christmas Island C-grade ore, 500 degrees C heated (calcined) C-grade ore (Calciphos), and superphosphate was measured in three experiments. Plant yield, and bicarbonate-soluble phosphorus extracted from the top 10 cm of soil were used to indicate the effectiveness of the four fertilizers. Using either of these indicators, superphosphate was the most effective fertilizer.
Survey Of Parasite Control Practices In Sheep And Cattle, J R. Edwards, R V R Gwynn, R A. Love, Richard Thomas Norris, G Dalton-Morgan, Brown Besier
Survey Of Parasite Control Practices In Sheep And Cattle, J R. Edwards, R V R Gwynn, R A. Love, Richard Thomas Norris, G Dalton-Morgan, Brown Besier
Technical Bulletins
Farms in the Albany, Esperance, Jerramungup and Katanning districts were surveyed to determine parasite control strategies currently used, to evaluate the adoption of recommended control practices and to detect areas of ineffective parasite control. For cattle, the number of drenches given in the low rainfall zone was higher than the number given in the high rainfall zone.
Continuous Cereal Cropping With Alternative Tillage Systems In Western Australia, R J. Jarvis, N D. Delroy, A P. Hamblin
Continuous Cereal Cropping With Alternative Tillage Systems In Western Australia, R J. Jarvis, N D. Delroy, A P. Hamblin
Technical Bulletins
In 1977, a ten year series of continuous cropping trials was commenced to compare the effect of four farm tillage systems. This bulletin reports the grain yield results for the first six years of these trials.
Survey Of Post-Weaning Management, Growth And Mortality Of Merino Weaners, Richard Thomas Norris
Survey Of Post-Weaning Management, Growth And Mortality Of Merino Weaners, Richard Thomas Norris
Technical Bulletins
Flock owner's excessive use of supplementary feed, especially of hay, lack of knowledge of nutritional requirements of weaners and failure to follow recommended methods of internal parasite control were the main areas of inefficient management. Management of the weaners as observed in the first year, suggested that previous advice by the Department of Agriculture was not well accepted or had not reached some producers.
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Technical Bulletins
Provides details of the virus, viroid, mycoplasma and rickettsial diseases recorded on plants in Western Australia. To establish these records, a range of tests have been used including sap transmission; leaf dip electron microscopy; aphid transmission and serology. The authenticity for each record is noted in the list of pathogens.
Naturalised Subterranean Clover Strains Of Western Australia, W J. Collins, John S. Gladstones
Naturalised Subterranean Clover Strains Of Western Australia, W J. Collins, John S. Gladstones
Technical Bulletins
A description is given of the characteristics and distributions of 115 distinct naturalized strains of subterranean clover. Approximately three-quarters of the strains appeared from their distributions to have been introduced and to have spread in their present forms, while the remainder, which are individually of very limited distribution, appeared to have evolved locally from naturalized and commercial material by natural crossing of mutation. An attempt was made to relate the apparent ecological succes rial, and a high level of hard-seedeness.
Toxic Ferns Of Western Australia, T E H Aplin, P Steele, M C. Nottle
Toxic Ferns Of Western Australia, T E H Aplin, P Steele, M C. Nottle
Technical Bulletins
Botanical descriptions and notes on the distribution of six species of ferns are given. These plants contain the enzyme thiaminase, which may induce thiamin deficiency, or other constituents toxic to animals. The clinical signs of both thiamin deficiency and fern toxicity in affected livestock are described.
Effect Of Dusts On Tomato Production, Walter Jacob Cox, L T. Jones, Dennis R. Phillips
Effect Of Dusts On Tomato Production, Walter Jacob Cox, L T. Jones, Dennis R. Phillips
Technical Bulletins
The phytotoxicity of bauxite, cement flue, mud lake, alumina and kaolin dusts were examined on tomatoes. Mud lake white dust caused severe leaf scorch, affected plant growth and resulted in no harvestable yield. Flue dust applied daily depressed market yield of fruit from 64 t ha to 42 t ha. Flue dust applied at 3.1 t ha had no effect. There was no phytotoxic effect from bauxite, alumina or kaolin.
Fluoride Toxicity In Grape Vines : A Case Study, Walter Jacob Cox, L T. Jones
Fluoride Toxicity In Grape Vines : A Case Study, Walter Jacob Cox, L T. Jones
Technical Bulletins
The onset of visual damage varied with the season. The symptoms consisted of marginal and tip necrosis in the early stages with the necrotic areas gradually expanding between the veins. In severe cases the leaves shed. Old leaves were affected first although foliage of any age was affected in cases of severe fluoride pollution. Plant analysis indicated that damage was associated with concentrations in excess of 20 ppm fluoride.
Response To Nitrogen Fertilisers Of Wheat, Oats, And Barley In Western Australia, M G. Mason, R N. Glencross
Response To Nitrogen Fertilisers Of Wheat, Oats, And Barley In Western Australia, M G. Mason, R N. Glencross
Technical Bulletins
Trials were mainly sited in areas normally receiving more than 450 mm average annual rainfall. Response curves were fitted to each set of data and then averaged to give overall response curves for each crop. There was little difference between the crops in absolute or percentage response to nitrogen fertiliser but the nitrogen fertiliser rate required for maximum yield was highest for wheat and lowest for oats.
Nitrogen Fertilisers For Rape (Brassica Campestris And B Napus) And Wheat In Western Australia, M G. Mason
Nitrogen Fertilisers For Rape (Brassica Campestris And B Napus) And Wheat In Western Australia, M G. Mason
Technical Bulletins
Absolute yield increases tended to be greater for wheat than rape at 63 per cent of the nitrogen responsive sites, but percentage yield increases and rate of N for maximum yield tended to be greater for rape than for wheat. When average response curves over all trials were considered, there was little difference between the two crops in terms of percentage responsiveness and N rate for maximum yield in areas with less than 460 mm average rainfall, but in higher rainfall areas the response to N was higher.
Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing
Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing
Technical Bulletins
The agricultural potential of the Forrestania area appears at least equal to that of much of the settled eastern wheatbelt. The scrubplain soils of the Forrestania area have an average yield potential of at least 1 000 kg/ha wheat and carrying capacity of 1.8 to 3.7 sheep per hectare on improved pastures. The use of clover ley rotations would maintain these levels of potential yield. Partial crop failures caused by adverse seasonal conditions could be expected 10 years in every 100.