Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1896)
- Earth Sciences (1537)
- Soil Science (1422)
- Environmental Sciences (1194)
- Plant Sciences (1124)
-
- Agronomy and Crop Sciences (921)
- Natural Resources Management and Policy (541)
- Oceanography and Atmospheric Sciences and Meteorology (502)
- Agriculture (496)
- Weed Science (488)
- Water Resource Management (412)
- Animal Sciences (384)
- Fresh Water Studies (363)
- Sustainability (309)
- Environmental Monitoring (275)
- Hydrology (275)
- Aquaculture and Fisheries (257)
- Natural Resources and Conservation (246)
- Environmental Indicators and Impact Assessment (216)
- Business (120)
- Chemistry (115)
- Natural Resource Economics (97)
- Ecology and Evolutionary Biology (91)
- Marine Biology (89)
- Social and Behavioral Sciences (82)
- Organic Chemistry (76)
- Biodiversity (68)
- Other Plant Sciences (68)
- Engineering (67)
- Keyword
-
- Western Australia (1551)
- Grains and field crops (674)
- Salinity (183)
- Biosecurity, pests, weeds and diseases (176)
- Natural resources (173)
-
- Groundwater (137)
- Geology (114)
- Western Australia. (111)
- Vegetation (100)
- Land capability (95)
- Soil (87)
- Hydrogeology (84)
- Drainage (78)
- Land use (76)
- Waterlogging (75)
- Fishery management (70)
- Soil types (69)
- Hydrology (67)
- Soil conservation (65)
- Soils (64)
- Soil surveys (63)
- Soil degradation (58)
- Pastures (57)
- Climate (55)
- Wheat (54)
- Land management (53)
- Remnant vegetation (53)
- Watershed management (53)
- Watersheds (53)
- Horticulture (52)
- Publication
-
- Experimental Summaries - Plant Research (726)
- Journal of the Department of Agriculture, Western Australia, Series 4 (472)
- Resource management technical reports (344)
- Fisheries management papers (127)
- Bulletins 4000 - (112)
-
- Fisheries research reports (78)
- The State of Soil Science in WA (52)
- All other publications (42)
- Agriculture reports (41)
- Natural resources published reports (39)
- Crop Updates (32)
- Native vegetation handbook series (29)
- Land resources series (24)
- Natural resources commissioned reports (24)
- Technical Bulletins (23)
- Journal of the Department of Agriculture, Western Australia, Series 3 (22)
- Fisheries Research Articles (19)
- WA Marine Stewardship Council report series (18)
- Conference papers and presentations (15)
- Books & book chapters (14)
- Sheep Updates (11)
- Agmaps (10)
- Fisheries occasional publications (9)
- Grain and Other Field Crops Research Articles (8)
- Biosecurity research reports (7)
- Apiculture research reports (6)
- Biosecurity published reports (6)
- Climate Science Published Reports (5)
- Climate Science Research Articles (5)
- Research Reports (5)
- Publication Type
- File Type
Articles 1141 - 1170 of 2354
Full-Text Articles in Physical Sciences and Mathematics
Seeding Rate For Lupins For The South Coast., M. Seymour
Seeding Rate For Lupins For The South Coast., M. Seymour
Experimental Summaries - Plant Research
Trial 90ES1, 90ES2, 90ES3, 90ES4, 90E5
Lupin seed rate x variety.
Location: Kendells Rd Scaddan, Condingup, Mt Ridley.
To evaluate the response of lupin to a range of plant densities when grown in high rainfall/long growing season environments.
Trial 90SG5, 90SG6
Lupin seed rate x variety.
Location: Salmon Gums Research Station.
To evaluate the response of lupin to a range of plant densities.
Trial 90KO1
Lupin seed rate x variety
Location: South Stirlings.
To evaluate the response of lupin to a range of plant densities when grown in high/long growing season environments.
Pursuit For Weed Control In Peas., S. Curtin
Pursuit For Weed Control In Peas., S. Curtin
Experimental Summaries - Plant Research
All trials were located in Merredin.
Trial 90ME86
This trial was one of the best demonstrations of pursuits effectiveness against mustard in particular. Other weeds were rough poppy and ryegrass and a small amount of cereal and doublegee.
250 ml applied immediate before seeding (IBS) was by far the best treatment with 100% control of mustard and poppy and good ryegrass control. This is in contract to 375 ml most emergent which had good control of mustard (77%) and suppression of ryegrass. There was no yield advantage from the post emergent treatment but there was a 55% yield increase from …
Level Banks Used To Decrease Waterlogging Can Increase Salinity, Don Mcfarlane, Richard Engel, Arjen Ryder, Maurice Eales
Level Banks Used To Decrease Waterlogging Can Increase Salinity, Don Mcfarlane, Richard Engel, Arjen Ryder, Maurice Eales
Journal of the Department of Agriculture, Western Australia, Series 4
Some farmers have used level W1SALTS banks to control surface zvaters above areas affected by ivaterlogging and salinity. Because the amount of waterlogging has been reduced, crop yields have increased downslope of some banks. However, the banks divert fresh surface water into deeper salty groundwater and, in the long term, worsen salinity. This article details an investigation of the effect of level WIS ALTS banks on saline groundwaters and discusses alternative methods of preventing the waterlogging of saline areas.
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.
Evaluation Of The Genetic Resources Of T. Cherleri (Cupped Clover) And A Selected Number Of Lines Of T. Resupinatum On Shallow Acid, Granitic Soils Of The Western Austalian Wheatbelt., R. Snowball
Experimental Summaries - Plant Research
Trial 90ME68
To evaluate Cupped clover (T. cherleri) and Persian clover (T. resupinatum) on a shallow, granitic, infertile soil, which is reported to be suitable for the growth of Cupped clover, but too acid to support medics successfully and where subterranean clover struggles to persist.
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)
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.
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 …
Stubble Management., R. J. Jarvis
Stubble Management., R. J. Jarvis
Experimental Summaries - Plant Research
Trial 79M7
Yellow loamy sand - Mallee scub
Continuous wheat since 1978. Treatments commenced 1979.
Location: Merredin.
The old cultivation treatments carried out since 1979 were removed in 1987. The trial will continue indefinitely with only burnt and unburnt stubble treatments.
Trial 82M34
Salmon Gum/Gimlet clay loam
Location: Merredin.
Continuous wheat since 1981. Treatments commenced 1982.
Trial 79WH6
Grey and yellow loamy sand with gravel.
Location: Wongan Hills.
Grazed blocks grazed to remove approx. half the stubble.
Systems For Very Early Sowing Of Wheat In The Central Wheatbelt Of Western Autralian, A. S. Heinrich
Systems For Very Early Sowing Of Wheat In The Central Wheatbelt Of Western Autralian, A. S. Heinrich
Experimental Summaries - Plant Research
To develop the management system for very early sown wheat crops in the central wheat belt of Western Australia.
Trial 90EB34 and 90EB35
Location: East Beverley Annex.
90EB34 3 times of sowing at fortnightly intervals after the 9th April, with 8 varieties of wheat.
90EB35, 4 times of sowing at fortnightly intervals after the 23rd April with 9 varieties of wheat.
Trial 90No77 - 90NO80
Location: York
Each time of sowing has a separate trial number, 90NO77 TOS 1, 90NO78 TOS 2, 90NO79 TOS 3 and 90NO80 TOS 4.
Trial 90NO81
Location: Goomalling
TREATMENTS: - 3 times of sowing 25/4/90, …
Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour
Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour
Experimental Summaries - Plant Research
Trial 90E13
Starter nitrogen for lupins, rates x depth of placement.
To determine if the application of nitrogen at seeding will enable lupins to grow vigorously at the beginning of the season, and have better growth at flowering. Deep placement is used to reduce the effects of high nitrogen fertiliser on plant establishment.
Herbicide Resistance In Weeds., G. S. Gill
Herbicide Resistance In Weeds., G. S. Gill
Experimental Summaries - Plant Research
Trial 90WH76
Alternative herbicides for diclofop-methyl resistant annual ryegrass in wheat.
Location: Wongan Hills Research Station.
To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant annual ryegrass in wheat.
Trial 90WH80
Alternative herbicides for diclofop-methyl resistant annual ryegrass in lupins.
Location: Wongan Hills Research Station.
To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant annual ryegrass in lupins
Trial 90A15
Alternative herbicides for Diclofop-methyl resistant wild oats in wheat.
Location: Avondale Research Station.
To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant wild oats in wheat.
Trial 90A17 …
Ecology And Control Of Grass Weeds In Cereal Pasture Rotations In The Great Southern Region., A. Wallace
Ecology And Control Of Grass Weeds In Cereal Pasture Rotations In The Great Southern Region., A. Wallace
Experimental Summaries - Plant Research
Silvergrass control.
Trial 90AB11
Location: Great Southern Agricultural Research Institute - Katanning.
The site was an established silvergrass dominant pasture on a light sandy soil.
Trial 90KA95
Location: Great Southern Agricultural Research Institute - Katanning
The site was an established silvergrass dominant pasture on a medium clay soil.
Trial 90KA96
Location: Great Southern Agricultural Research Institute - Katanning
The site was an established silvergrass dominant pasture on heavy (Moort type) clay soil.
Simazine was found to be very active against silvergrass on the light sandy site and all rates applied gave complete control. There were some late germinations which enabled …
Ecology And Control Of Brome Grass In Cropping Systems., Christine Zaicou
Ecology And Control Of Brome Grass In Cropping Systems., Christine Zaicou
Experimental Summaries - Plant Research
1. Assessment of the timing and increasing rates of ethiozin on brome grass control and wheat yield.
Trial 90EC16, 90GE115,
Control of brome grass in wheat using Ethiozin applied immediately before the following seeding and post-emergence.
Location: East Chapman Research Station, Allanooka
Incomplete factorial with three replications.
Unfortunately, further research and development of ethiozin has ceased world wide. It has suggested a result of limited activity on target weeds other than brome grass and economics.
2. Evaluation of pine kraft lignin with metribuzin and their incorporation, on wheat yield and brome grass control.
Trial 90EC18
Evaluating pine kraft lignin (PKL) …
Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner
Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
Trial 90C49
Grass and broad leaved weed control in direct sown crops.
Location: Chapman Valley Research Station.
The low rate of sprayseed with diuron was not as effective on the grasses. It may indicate some antagonism within the mix as the same rate of sprayseed with metribuzin did not cause any drop in grass control. The addition of 2, 4-D amine may have boosted the mixes activity on capeweed as the sprayseed metribuzin mix was not very good on capeweed.
Trial 90EB37
Grass and broad leaved weed control in direct sown crops.
Location: East Beverley Annex.
Part of the trial …
An Introduction To The Soils Of The Jerramungup Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Jerramungup Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on eight common soils.
Economics Of Interceptor Drains : A Case Study, Andrew Bathgate, Ian Evans
Economics Of Interceptor Drains : A Case Study, Andrew Bathgate, Ian Evans
Journal of the Department of Agriculture, Western Australia, Series 4
This case study determines the most likely rate of return to capital invested in constructing seepage interceptor drains to reduce the effect of waterlogging on crop and pasture yields. The analysis of a farm in the Denbarker region, west of Albany, determined what increases were needed in pasture growth to justify the cost of constructing drains across four adjacent paddocks. The benefits of changing rotations to include lupins were also determined, as growing lupins was unprofitable before the construction of drains.
The Extent And Cost Of Waterlogging, Don Mcfarlane, Buddy Wheaton
The Extent And Cost Of Waterlogging, Don Mcfarlane, Buddy Wheaton
Journal of the Department of Agriculture, Western Australia, Series 4
Waterlogging is an underrated and not widely recognized problem in our cropping areas. Before we can tackle the problem through drainage and alternative cropping systems, we need to know its extent and how much crop yield is lost. The effect of waterlogging on pasture growth is also poorly known.
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.
Soils Of The Ivanhoe Plain, East Kimberley, Western Australia, J M. Aldrick, M H R Van Cuylenburg, P W. Moody, B A. Wren, A J. Clarke
Soils Of The Ivanhoe Plain, East Kimberley, Western Australia, J M. Aldrick, M H R Van Cuylenburg, P W. Moody, B A. Wren, A J. Clarke
Technical Bulletins
The Ivanhoe Plain was divided into two geomorphic provinces. The principal difference between the provinces is the time during which pedogenesis occurred. The crcking clay soils of the northern province are generally more highly leached than their younger counterparts in the southern province. Sixteen land units are identified as distinct from soil units. These units give cognizance to vegetation and topographical features as well as soils.
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 …
Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant
Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant
Experimental Summaries - Plant Research
Trial 88EB18
Location: East Beverley Research Station
Impeded early root growth.
Using aerial photography and crop growth data from previous seasons we identified areas on the site where crops grow well or poorly. One of the factors implicated in the poor growth areas is impeded early root growth (see Belford et al. and Tennant et at., 1990 Experimental Summaries, this section). Here we describe the problem and outline possible causes.
Trial 88EB18
Growth and yield of wheat and lupin crops at East Beverley.
Location: East Beverley Research Station.
To measure the growth and yield of wheat and lupin crops in …
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.
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.
Salinity And Waterlogging On The Esperance Downs Research Station, D J. Mcfarlane, A T. Ryder
Salinity And Waterlogging On The Esperance Downs Research Station, D J. Mcfarlane, A T. Ryder
Resource management technical reports
Details the situation on the station so that the demonstration and research programs can be designed and the effect of the treatments assessed. Past work on the station has been briefly summarised and the results of geophysical surveys and additional drilling are given. Surveys of electromagnetic terrain conductivities have shown where salinity is most serious at present. The most deeply penetrating method may have identified areas likely to developing salinity in future.
Jerdacuttup Land Resource And Capability Study, Geoff Allan Moore, S T. Gee, D Vincent
Jerdacuttup Land Resource And Capability Study, Geoff Allan Moore, S T. Gee, D Vincent
Resource management technical reports
The Jerdacuttup catchment on the south coast of Western Australia has a number of significant land degradation problems. A soil-landform map of the catchment was produced at a scale of 1:50,000. The map units are a combination of landform and soil type. A land capability assessment was undertaken for five land uses; improved annual pastures, perennial pastures, lucerne, cereal cropping and lupins, using a five class classification.
Busselton - Margaret River - Augusta Land Capability Study : Methodology And Results, Peter J. Tille, Neil Clifton Lantzke
Busselton - Margaret River - Augusta Land Capability Study : Methodology And Results, Peter J. Tille, Neil Clifton Lantzke
Resource management technical reports
A land unit map of the region has been prepared at a scale of 1:50,000. Additional maps of climate, surface and groundwater supplies and existing land use have also been prepared at smaller scales. The capability of each of the land units to support grazing, market gardens, vineyards, orchards and forestry has been assessed. The limitations for housing on small rural lots have also been evaluated. Describes the methods by which the survey was undertakenand will be primary of use to the technical user.
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.