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Articles 421 - 450 of 1183
Full-Text Articles in Earth Sciences
An Introduction To The Soils Of The Narrogin Advisory District, T C. Stoneman, Department Of Agriculture And Food, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Narrogin Advisory District, T C. Stoneman, Department Of Agriculture And Food, National Soil Conservation Program (Australia)
Bulletins 4000 -
Descriptions, illustrations and notes on eight common soils / compiled by T.C. Stoneman.
An Introduction To The Soils Of The Katanning Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Katanning Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on eight common soils.
Kings Park Soil Survey, J A. Bessell-Browne
Kings Park Soil Survey, J A. Bessell-Browne
Resource management technical reports
No abstract provided.
Horticultural Capability Study Of Soils Adjacent To Plantations At Carnarvon, Western Australia, M R. Wells, J A. Bessell-Browne
Horticultural Capability Study Of Soils Adjacent To Plantations At Carnarvon, Western Australia, M R. Wells, J A. Bessell-Browne
Resource management technical reports
A detailed soil survey and horticultural capability assessment was undertaken over 1,804 ha of land adjacent to existing plantations on levees of the Gascoyne River near Carnarvon. The study provides mapped land resource data and advice in relation to land management and the possibility of further land release for horticulture. In the assessment of horticultural capability primary consideration has been given to the risk of erosion during flood events, to salinity, and to soil drainage conditions.
Toward Better Minimum Tillage For South-Coastal Sandplain Soils, W L. Crabtree
Toward Better Minimum Tillage For South-Coastal Sandplain Soils, W L. Crabtree
Resource management technical reports
Seventeen farmers compared their conventional cropping practices with some form of minimum tillage cropping. The minimum tilled crops yielded 21 percent less grain than the conventionally sown crops. The reasons for these decreased yields were in most cases related to inexperienced management. The minimum tilled treatments usually had very poor weed kill strategies which often resulted in large weeds at sowing, very cloddy seed-beds, and numerous insects in the young crops.
Land Management Manual. Merredin Advisory District, F. Frost, M Howell
Land Management Manual. Merredin Advisory District, F. Frost, M Howell
Natural resources published reports
Farming by soil type recognizes that each major soil unit has specific land use capabilities. 'When developing a farm management programme, understanding and appreciating the productive potential and degradation hazard of each soil unit ensures that production systems can be developed which are 'sustainable. The aim of this land management manual is to describe the climatic and geological features of the district and provide definitions of each of the major soil units and 'current management recommendations. The material is designed to be used as an information base for farm planners.
Thes oil units described are for the Merredin advisory district …
Using Pumps And Syphons To Control Salinity At A Saline Seep In The Wallatin Creek Catchment, Richard J. George Dr, P W C Frantom
Using Pumps And Syphons To Control Salinity At A Saline Seep In The Wallatin Creek Catchment, Richard J. George Dr, P W C Frantom
Resource management technical reports
No abstract provided.
Phosphorus Retention Of Sandy Horticultural Soils On The Swan Coastal Plain, Ian Mcpharlin, Neil Delroy, Bob Jeffery, Greg Dellar, Maurice Eales
Phosphorus Retention Of Sandy Horticultural Soils On The Swan Coastal Plain, Ian Mcpharlin, Neil Delroy, Bob Jeffery, Greg Dellar, Maurice Eales
Journal of the Department of Agriculture, Western Australia, Series 4
Soils can be ranked according to their phosphorus retention capacity by the phosphorus retention index (PRI). This is the ratio of phosphorus adsorbed by soil to that remaining in solution under a set of standard conditions. Although it is a laboratory measurement, the PRI seems to be a good indication of what happens in practice.
Rhizoctonia Bare Patch Of Cereals And Lupins. Sterile Red Fungus (Srf) And Control Of Take-All Disease In Wheat., G. C. Macnish
Rhizoctonia Bare Patch Of Cereals And Lupins. Sterile Red Fungus (Srf) And Control Of Take-All Disease In Wheat., G. C. Macnish
Experimental Summaries - Plant Research
Trial 86E31
Rhizoctonia strains and paddock history.
Location: Esperance Downs Research Station ( Paddock C5)
To determine the effects of pasture, cultivation and cropping on Rhizoctonia root rot, Rhizoctonia patch and distribution of patch and non-patch strains of R. spp
Trial 88E39
Rhizoctonia patch mini-plot establishment area.
Location: Esperance Downs Research Station ( Paddock N1B)
To examine the effects of cultivation and minimum tillage in patches in lupins and to provide sites for mini-plot experiment.
Trial 88KO15
Rhizoctonia bare patch establishment area.
Location: Kojaneerup annex.
To establish an area (with a known history) for future research.
Trial 89E12
Rhizoctonia bare …
An Economic Model For Evaluating Strategies On The South Coast Of W.A. Which Reduce Wind Erosion : Documentation, A D. Bathgate
An Economic Model For Evaluating Strategies On The South Coast Of W.A. Which Reduce Wind Erosion : Documentation, A D. Bathgate
Resource management technical reports
The sandplain region on the south coast has predominately sandy soils which are subject to erosive winds when ground cover is likely to be scarce. This can often result in production losses of crop and pasture. There is concern that wind erosion will lead to the depletion of the soil resource in the long term. The model is multi-period linear programming with a planning horizon of 10 years. Effects of wind erosion on production can be imposed on the model for the first five years after the erosion event.
Pumps : A Method Of Financially Assessing Groundwater Pumping Used To Mitigate Salinity In South-Western Australia, Richard J. George Dr
Pumps : A Method Of Financially Assessing Groundwater Pumping Used To Mitigate Salinity In South-Western Australia, Richard J. George Dr
Resource management technical reports
No abstract provided.
Response By Stylosanthes Hamata And S. Scabra To Phosphate On Three Soils In The North-Kimberley Of Western Australia, A Mcr Holm, Mario F. D'Antuono
Response By Stylosanthes Hamata And S. Scabra To Phosphate On Three Soils In The North-Kimberley Of Western Australia, A Mcr Holm, Mario F. D'Antuono
Resource management technical reports
Legume herbage mass was maximized after two or three years application of 50 kg/ha double superphosphate for both Verano and Fitzroy on Red earth soils and for Fitzroy on Yellow lateritic soils. There was increased production of Verano up to the maximum fertilizer level. Both varieties responded in the second year to residual P following application in the first year but there were no responses in subsequent years.
Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 1. Brennand's Catchment, Richard J. George Dr, P W C Frantom
Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 1. Brennand's Catchment, Richard J. George Dr, P W C Frantom
Resource management technical reports
Groundwaters were found to be 10 m below the floor of the ancestral playa lake in Brennand's catchment. They were extremely saline. A groundwater flow system was not established on much of the catchment. Flow was observed to be occurring from recharge areas near the playa lakes towards the midslopes of the catchment. Flow was apparently restricted from leaving Brennand's catchment because of obstruction to groundwaters created by dolerite dykes.
Evaluation Of Trifolium Pasture Species On A Summer Moist Joel Sub Soil North West Of Harvey., R. Snowball
Evaluation Of Trifolium Pasture Species On A Summer Moist Joel Sub Soil North West Of Harvey., R. Snowball
Experimental Summaries - Plant Research
Trial 90HA2
Introduce a range of long season annual pasture species and 1 perennial species in order to utilize summer sub soil moisture more effectively than the existing subterranean clover pastures.
Geraldton Rural-Residential Land Capability Study, R A. Dye, A M E Van Vreeswyk, Geoff Allan Moore
Geraldton Rural-Residential Land Capability Study, R A. Dye, A M E Van Vreeswyk, Geoff Allan Moore
Land resources series
With a growing population in the Geraldton area, there is a demand for rural and coastal subdivision to provide for rural residential development and intensification of agricultural activities. Future land use planning for land use change and management of land to overcome existing land degradation problems should be based on land capability. This study provides a semi-detailed (1:50,000) soil and landform inventory for the immediate zone around Geraldton, south from Coronation Beach to Cape Burney along the coast, 13.7 km inland in the north and 7.6 km inland in the south. Eight land systems were identified in the land resource …
Busselton, Margaret River, Augusta: Land Capability Study, Peter J. Tille, Neil Clifton Lantzke
Busselton, Margaret River, Augusta: Land Capability Study, Peter J. Tille, Neil Clifton Lantzke
Land resources series
The study was done to ensure that information on the area's land resource, and its capability, is available for land use planning. This information will assist planners to make decisions which can allow for the optimal development of the land while avoiding land degradation or land use conflicts. A map showing the distribution of land units defined according to soil type, topography, drainage and wind exposure was prepared at a scale of 1:50,000. From this map a smaller scale, less detailed land systems map was drawn. Land capability, the ability of land to sustain a specific use without undesirable on-site …
Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 4. Kitto's Hillslope, Tammin - 1985-90, Richard J. George Dr
Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 4. Kitto's Hillslope, Tammin - 1985-90, Richard J. George Dr
Resource management technical reports
The investigation revealed that a deep, brackish to saline groundwater system and dolerite dyke, contained within the saprolite were responsible for the secondary salinity; the annual discharge of water and salt at the seep from the damp groundwater system was about 2800 kL and 17 tonnes respectively; and the water-tables were not rising and that the most appropriate management of the site was to plant salt tolerant forage plants in combination with trees.
Stunt Patch Disorder Of Lupins., Miles Dracup
Stunt Patch Disorder Of Lupins., Miles Dracup
Experimental Summaries - Plant Research
Trial 89ME1 and 90ME5
Stunt patch disorder of lupins.
Location: Merredin.
Studies on the disorder have been initiated (89ME1 and 90ME5) on two sites 15 km south of Merredin. This report will summarize data on:
1) The soil;
2) Soil strength and lupin emergence on 90ME5; and
3) Soil chemical and physical characteristics associated with the patches on 89ME1 (investigations by A. Thomson for B Sc (Agric) dissertation).
Trial 90PE56
Understanding the importance of moisture and temperature in the seedbed on establishment of lupin.
However, despite their importance in determining the success of establishment, there have been few attempts to …
Grain Legume Adaptation To Soil Type, R. J. French
Grain Legume Adaptation To Soil Type, R. J. French
Experimental Summaries - Plant Research
Trial 90ME8, 9 and 10
Location: Bencubbin.
90ME8. Deep loamy sand. pH(CaC12) = 4.9 at surface and 3.7 at 50 cm.
90ME9. Sand over clay at 25-30 cm. pH(CaC12) = 5.7 at surface and 8.3 at 50 cm. 90ME10. Sandy loam over clay at 15 cm. pH(CaC12) = 5.5 at surface and 8.4 at 50 cm
Trial 90ME11 and 13
Location: Totadgin.
90ME11. Deep loamy sand. pH (CaC12) = 4.5 at surface and 3.9 at 50 cm. 90ME13. Loamy sand over sandy clay at 10 cm. pH (CaC12) = not yet available due to instrument difficulties.
Trial 90ME14, 15 and …
Demonstration Of Pasture Cultivars On Various Soil Types In The Geraldton Distict., Brad Nutt
Demonstration Of Pasture Cultivars On Various Soil Types In The Geraldton Distict., Brad Nutt
Experimental Summaries - Plant Research
Trial 90GE13
Demonstration of pasture cultivars on a Chapman Valley red/brown sandy loam.
Location: Northern Gulley,
SOIL TYPE: Red/brown sandy loam pH 5 . 4 (water)
Trial 90GE14
Demonstration of pasture cultivars on a gravelly grey sand at Allanooka.
Location: Allanooka.
SOIL TYPE: Gravelly grey sand, pH 5.8 (water)
Trial 90GE15
Demonstration of pasture cultivars on an Eradu sandplain soil.
Location: Ogilivie.
SOIL TYPE: Deep yellow loamy sand, pH 6.0 (water)
Trial 90GE16
Demonstration of pasture cultivars on a low rainfall maasive red earth at Mullewa.
Location: Mullewa.
SOIL TYPE: Red sandy clay loam pH 6.2 (water)
Wheat Responses To Levels, Sources And Times Of Application Of Nitrogen., J. W. Bowden, S. J. Burgess, R. J. Lunt, Ian Fillery
Wheat Responses To Levels, Sources And Times Of Application Of Nitrogen., J. W. Bowden, S. J. Burgess, R. J. Lunt, Ian Fillery
Experimental Summaries - Plant Research
Trial 90M055
Associated work: 90NO112, 105,104.111, 90MO53, 54,56
Location: Dandaragan
This project characterizes the dynamics of nitrogen supply to a wheat crop at each of the sites on which various methods of making fertilizer recommendation were tested. It supposedly provides the "optimum" nitrogen fertilizer regime as well as detailed information on nitrogen supply and demand so that results can be made transferable to other situations.
Trial 90MO56
Related trials: 90NO104, 105, 111, 112; 90MO53, 54,55
Tactical nitrogen application for wheat
Location: Danaragan
This project compares tactical and strategic methods for determining nitrogen requirements of wheat. The tactical methods depend on …
An Introduction To The Soils Of The Albany Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Albany Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With description, illustrations and notes on eight common soils.
The 1989 Saltland Survey, Richard George
The 1989 Saltland Survey, Richard George
Journal of the Department of Agriculture, Western Australia, Series 4
In March 1989, the Australian Bureau of Statistics (ABS) surveyed farmers in Western Australia to determine the area of previously arable land that was now too saline for conventional agriculture. Farmers reported that 443,441 ha, or 2.83 per cent, of the 15.7 million hectares of cleared farm land in south-western Australia, was saline. This was an increase of about 180,000 ha on the 1979 survey figure.
The worst affected areas were in the 350 mm to 600 mm rainfall zone and included the Shires of Tammin (9.26 per cent arable area saline), Katanning (7.96 per cent), Goomalling (7.93 per cent), …
Crop Tolerance To Herbicides., D. Bowran
Crop Tolerance To Herbicides., D. Bowran
Experimental Summaries - Plant Research
1. Tolerance of New Cereal Varieties to Current Herbicides EX 5506 Trial Nos: 90AL41, 90EC36, 90EB45, 90KA130, 90M85, 90NA100
2. Tolerance of Current Cereal Varieties to New Herbicides EX 5506 Trial Nos: 90M86, 90EC35, 90N74
3. Metribuzin Tolerance of Cereal Varieties EX 5507 Trial Nos: 90EC37
4. Lupin Tolerance to Herbicides EX 5508 Trial Nos: 90EC34, 90EB44
5. Pea Tolerance to Herbicides EX 5509 Trial Nos: 90KA131, 89KA64
6. Pasture Legume Tolerance to Herbicides EX 64522 Trial Nos: 90KA132,
Shallow Drains For Reducing Waterlogging And Salinity On Clay Flats, Don Mcfarlane, Tim Negus, Arjen Ryder
Shallow Drains For Reducing Waterlogging And Salinity On Clay Flats, Don Mcfarlane, Tim Negus, Arjen Ryder
Journal of the Department of Agriculture, Western Australia, Series 4
Flooding, waterlogging and salinity are problems which commonly occur together on the broad valleys of the wheatbelt. Drainage lines often become poorly defined once they reach the valleys and flood waters spread out, causing inundation and waterlogging. This excess water needs to be controlled because it contributes to salinity
Waterlogging Limits Growth On Duplex Soils, Bob Belford, Miles Dracup, David Tennant
Waterlogging Limits Growth On Duplex Soils, Bob Belford, Miles Dracup, David Tennant
Journal of the Department of Agriculture, Western Australia, Series 4
Duplex soils - soils with a sandy topsoil overlying a clayey subsoil -are ividespread in Western Australia's agricultural areas (see map). These soils are potentially highly productive, but crop growth is variable and the soils can become waterlogged. Work on a duplex soil site near Beverley has shoivn that the soil ivaterlogs where the permeability of the clay is low, and that this permeability varies ividely over the site. Waterlogging accounts for an average of half of the variation in wheat yields on this site; surprisingly, lupins have so far appeared less sensitive to waterlogging- The Department of Agriculture and …
Yield Potential Of Barley., J H. Moore, G R. Dean
Yield Potential Of Barley., J H. Moore, G R. Dean
Experimental Summaries - Plant Research
Barley yield potential demonstration, 89A130. Barley yield potential, 89A131. Logan herbicide mixtures, 89AL28. Logran herbicide mixtures for wheat and barley, 89AL29. Darnel control in cereals, 89AL38. Fumitory control in peas, 89AL37. Freezer pea herbicides, 89AL36. Post emergence weed control in processing peas, 89MC16. Post emergence weed control in processing peas, 89MC17. Diuron + 2, 4-DB effect on Zodiac Medic, 89AL41. Bladex, Diuron, 2, 4, DB and pursuit on doublegee in pasture. Diuron + 2, 4-DB for sheep thistle control in pasture. Bracken controlwith brush off, 89AL40.
Long-Term Rotation Trials., I. Rowland, W. Hawkins
Long-Term Rotation Trials., I. Rowland, W. Hawkins
Experimental Summaries - Plant Research
Trial 66M29
Location: Merredin Research Station.
An old land site, cleared in 1909. First sown to Cyprus Barrel medic in 1955, grazed and topdressed. Cropped, 1962 and 1964. Medic resown in 1965.
Trial 67C13
Location: Chapman Research Station
An old land site, cleared in 1903. Sown to Dwalganup sub clover in 1964, topdressed each year until the start of the trial in 1967. In 1981 to 83 all plots were reseeded with Northam at 20 kg/ha. In 1988 rotations were altered to allow inclusion of grain lupins, the following changes were made:
1. The 4 plots of 2 crop :2 …
Field Pea Agronomy., G. H. Walton, T. R. Trent
Field Pea Agronomy., G. H. Walton, T. R. Trent
Experimental Summaries - Plant Research
Trial 90M64
Site and variety effect on ovule abortion.
Location: Merredin Research Station CSIRO lease block.
To understand the causes of ovule abortion in field peas.
Trial 90M65
Response to seeding rates of peas with different plant architecture.
Location: Merredin Research Station, paddock 8CW3
To compare the yield responses of different pea types to seeding rates.
Trial 90A26
Nitrogen fixation in field pea.
Location: Avondale Research Station, paddock 1C
To compare the growth, N-fixation and yield of 'nodulating' crossbred material against the commercial cultivars of Dundale, Alma, Wirrega and Dinku.
Trial 90A18
Chickpea germplasm introductions.
Location: Avondale Research Station, paddock …
Phosphorus Nutrition., M. D. Bolland, M. J. Baker
Phosphorus Nutrition., M. D. Bolland, M. J. Baker
Experimental Summaries - Plant Research
Evaluation of soil test for phosphate on sandy soils.
Results presented for this project, commenced in 1988, which started as a joint project between the Department of Agriculture and Soil Science and Plant Nutrition, School of Agriculture, University of Western Australia.
In the field experiments, 10 levels of superphosphate (three replicates) were applied in May 1988, and 10 levels of superphosphate (also three replicates) were applied in May 1989 onto an adjacent area to the 1988 treatments. Colwell P I(soil test values) and yield data are presented for 1988 and 1989 for the 1988 treatments layed out in 1988, and …