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Articles 1111 - 1140 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Land Resource Survey Report Of The Brigadoon Development Proposal, M R. Wells
Land Resource Survey Report Of The Brigadoon Development Proposal, M R. Wells
Resource management technical reports
No abstract provided.
An Assessment Of Wisalts Banks At Dangin, C J. Henschke, J A. Bessell-Browne
An Assessment Of Wisalts Banks At Dangin, C J. Henschke, J A. Bessell-Browne
Resource management technical reports
This report compares two alternative approaches for the treatment and management of salt affected land at Dangin, Western Australia by determining whether there are benefits from a WISALTS bank system which would not accrue from standard soil conservation recommendations; comparing the costs and benefits of the two systems; and determining the nature of the effects of the two systems, particularly with respect to soil salinity.
A Brief Study Of Land Capability In The Coastal Region Of The Shire Of Harvey, Department Of Agriculture, Western Australia. Soil Conservation Service, M R. Wells, P A. Hesp
A Brief Study Of Land Capability In The Coastal Region Of The Shire Of Harvey, Department Of Agriculture, Western Australia. Soil Conservation Service, M R. Wells, P A. Hesp
Resource management technical reports
No abstract provided.
Agricultural Water Quality Criteria : Irrigation Aspects., P R. George
Agricultural Water Quality Criteria : Irrigation Aspects., P R. George
Resource management technical reports
Water quality criteria for irrigation are imprecise. The final result of quality evaluation depends on plant, soil and climatic variables all of which can be inter-dependent. A range of management strategies of varying complexity are available to mitigate the effects of poor quality water. The heavy winter rainfall in the south-west of Western Australia affects the applicability of published salinity criteria most of which have been developed in arid and semi-arid environments with little effective rainfall.
Rural (Non-Irrigation) Water Supplies In Western Australia : A Perspective To The Year 2000, I A F Laing
Rural (Non-Irrigation) Water Supplies In Western Australia : A Perspective To The Year 2000, I A F Laing
Resource management technical reports
No abstract provided.
Curbur Station : Inventory Of The Range And Its Management, Alexander Mcrae Holm
Curbur Station : Inventory Of The Range And Its Management, Alexander Mcrae Holm
Resource management technical reports
Ten land systems were identified, descriped and mapped. potential feed status was assessed for each land system. The land systems were then ranked accordingly and stocking rates allocated. Wongdong saline shrublands was considered to be the most productive system and Narryer hills, outcrops and breakaways the least productive. An assessment was made of the range condition and erosion status of the least. These assessments indicated that most of the pastures had been heavily utilized in the past.
Review Of Current Drainage Investigations In Western Australia, R A. Nulsen
Review Of Current Drainage Investigations In Western Australia, R A. Nulsen
Resource management technical reports
No abstract provided.
Progress Report On Effects Of Contour Banking On Surface Runoff At The Berkshire Valley Experimental Catchment (Near Moora) 1961-82, K J. Bligh
Resource management technical reports
The time lag prior to peak runoff following rains of comparable high intensity increased by approximately 80 per cent in the largest event after the construction of contour banks. Although 80 per cent more runoff also occurred because the catchment was wetter and had been cultivated for three years in a row, the peak rate of runoff increased by only approximately 20 per cent. That the peak rate was not increased by 80 per cent, may be primarily attirbuted to the effect of the contour banks.
Shire Of Manjimup : A Brief Assessment Of The Physical Land Resources With Respect To Horticultural Land Use, M R. Wells, K E. Hawley
Shire Of Manjimup : A Brief Assessment Of The Physical Land Resources With Respect To Horticultural Land Use, M R. Wells, K E. Hawley
Resource management technical reports
No abstract provided.
Quobba Point Chalet Development Land Capability Study [And] Environmental Consideration, J R H Riches, L E. Chalmers
Quobba Point Chalet Development Land Capability Study [And] Environmental Consideration, J R H Riches, L E. Chalmers
Resource management technical reports
The preferred area for development is the Old Stabilised Dune System. The Hind Dune Flat is a stable area but is limited in size. Other environmental and town planning considerations may militate against development of this area for Chalet Development.
Preliminary Groundwater Investigations In Relation To Soil Salinity At Fitzgerald, Western Australia, C J. Henschke
Preliminary Groundwater Investigations In Relation To Soil Salinity At Fitzgerald, Western Australia, C J. Henschke
Resource management technical reports
This study investigated soil salinity problems in relation to new land releases at Fitzgerald near the south coast of Western Australia. Fairly widely spaced set of bores was established to compare the groundwater hydrology regimes beneath cleared and virgin land. A large storage of soluble salts (over 100 kgm-2 in some profiles) was measured in the pallid zone clays under both cleared and virgin land conditions. Seasonal fresh to brackish perched watertables were found to overlie highly saline deep waterbles at a number of valley sites on land which has been cleared for agriculture during the past 15 years. Salinity …
A Central Midlands Catchment Study : The Prospects For Land Drainage, B J. Hillman, B. J
A Central Midlands Catchment Study : The Prospects For Land Drainage, B J. Hillman, B. J
Journal of the Department of Agriculture, Western Australia, Series 4
Flooding, waterlogging and salinity problems in Western Australia are complex. Usually broad areas of land are affected, thus it is hard for one farmer alone to combat the effects because the problem so often starts and finishes off his farm.
Nitrogenous Fertilisers For Cereals And Rape Results From 1982 Trials., M. G. Mason
Nitrogenous Fertilisers For Cereals And Rape Results From 1982 Trials., M. G. Mason
Experimental Summaries - Plant Research
Residual value of fertiliser nitrogen, Chapman research station, Nabawa, 81 C 2. Residual value of fertiliser nitrogen, Merredin research station, 81 M 1. Residual value of fertiliser nitrogen Wongan Hills research station, 81 WH 1. Evaluation of the nitrification inhibitor,DIDIN, R. Auld, North Eneabba. 82 TS 40. Evaluation of the nitrification inhibitor, DIDIN, D. Hooper, Perillup, 82 AL 35. Evaluation of the nitrification inhibitor, DIDIN, Badgingarra research station, 82 BA 9. Evaluation of the nitrification Inhibitor, DIDIN, Esperance Downs research station, Gibson, 82 E 4. Evaluation of the nitrification inhibitor, DIDIN, J.B. Wood, Lancelin, 82 MO 3. Nitrogen fertiliser requirement …
Sorrel, Dicamba Soil Residual Effects, Glean, Veldt Grass, Declared Weeds Blackberry, Pattersons Curse, Penny Royal, J Moore
Experimental Summaries - Plant Research
CONCLUSIONS This trial has confirmed the field observation that 2,4,5-T whilst giving good initial control of Pennyroyal, fails after a number of years. Round up has a far longer term effect. This can only be attributed to a more complete initial kill as both herbicides are essentially non residual. Further work needs to be conducted on Round up in combination with soil residual chemicals or multiple applications to overcome the problem of reinfestation from seed reserves. 81A1 -01
Foliar Diseases Of Wheat., A. G.P. Brown
Foliar Diseases Of Wheat., A. G.P. Brown
Experimental Summaries - Plant Research
Leaf diseases in the wheatbelt. Fungicides to control Septoria nodorum. Fungicide rate. Fungicides on yellow spot. Effect of stubble residues on septoria. Septoria: economic control on farm crops. 82Ba38 82BA37
Medic Inoculation Experiments., D. L. Chatel
Medic Inoculation Experiments., D. L. Chatel
Experimental Summaries - Plant Research
Inoculation trials conducted at Merredin Research Station and Merredin Research Station lease block. 1. To test the field effectiveness of promising strains of Rhizobium meliloti and to compare them with standard strains. 2. To examine the performance in subsequent years of R. meliloti as colonizers of acid soils. The new strains included in this experiment represent promising isolates from acid soils in Sardinia. Their ability to persist will be determined by second and third year nodulation assessments. 3. To compare the performance of Medicago murex with previously used medic hosts under acid conditions. 4. To assess the effect of lime …
Long Term Minimum Tillage Investigations, R J. Jarvis
Long Term Minimum Tillage Investigations, R J. Jarvis
Experimental Summaries - Plant Research
77A16, 77WH17, 77M13, 78M25, 77E18, 77Mt15, 78Ba42, 77A43, 77WH88, 77M56, 82M35, 77E52, 77Mt51, 82N21, 82LG47, 82KD3, 82M29, 82M30, 79M7, 79WH6, 82M34, 82LG4, 82ME38, 82M46, 82GE37, 82GE38, 82M35, 81M53, 82N48, 82NO49, 82NO51, 77WH17, 80NO46, 81NO3, 81NO4, 82MO35, 82MO36, 82MO34, 82MO34, 82MO37, 82WH2, 80A44, 82M32, 82M61, 82N32, 81LG3, 82M31, 81M45, 81NO2, 81M52.
Phosphorus Nutrition On Leaching Sands., D. M. Deeley, S. M. Mason, B. G. Barker
Phosphorus Nutrition On Leaching Sands., D. M. Deeley, S. M. Mason, B. G. Barker
Experimental Summaries - Plant Research
The excessive amounts of nutrients entering the Peel-Harvey Estuarine system have resulted in a marked increase in the abundance of algal species .within the estuary and reduced production on the sandy coastal soils of the catchment from which the nutrients are being leached. Recent stream samplings by D.C.E have shown that the deep grey Bassendean sands may be contributing up to 40 per cent of the total P loading in the Harvey River. Agriculture Department trials around Albany on similar sands have shown that up to 80 per cent of the bicarb extractable P may be lost after only 150 …
Sulphur Nutrition Of Pastures, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands And Soil Acidity - High Rainfall Pastures., J. S. Yeates., M. F. Clarke
Sulphur Nutrition Of Pastures, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands And Soil Acidity - High Rainfall Pastures., J. S. Yeates., M. F. Clarke
Experimental Summaries - Plant Research
Sulphur - high rain fall areas. Rates and time of application of sulphur as superphosphate to pastures. 79AL2, 79AL23, 79AL41, 82BY7, 82BY8, 82PE2. Sulphur rundown on heavy soils - 81BY1. Sources, rates, time of application of sulphur to pastures. 80AL1, 80AL4, 81AL3, 81AL4. Sulphur - low rainfall areas. Sulphur on pastures 80JE16/17, 82AL9, 82KA4. Sulphur on crops 82ME68 (with G Fosberry). Phosphorus. Sources, rates, time of application of phosphorus on high rainfall deep sand pastures. 80AL2, 80ALS, 80AL15, 81AL5, 81KE2, 81MA4, 82AL10. Potassium. Sources, rates, time of application of potassium on high rainfall deep sand pastures. 80AL3, 80AL6, 81AL7, 81AL8. …
Diseases Of Lupins And Lupinosis., P M. Wood
Diseases Of Lupins And Lupinosis., P M. Wood
Experimental Summaries - Plant Research
Lupin diseases, 82 TS 30, 82 TS 29, 82 TS 28, 82 GE 24, 82 ME 45, 82 ME 46, 82 BR 20,
1. Phosphorus Sources Trials 2. Miscellaneous Trials, J W. Bowden, R J. Lunt, M J. Baker
1. Phosphorus Sources Trials 2. Miscellaneous Trials, J W. Bowden, R J. Lunt, M J. Baker
Experimental Summaries - Plant Research
Sources of phosphorus trials - 1982 results. Pasture Trials, 76MT10, 77MT1, 77MT2, 76BU1, 77EI. Cropping Trials, 76WH14, 76WH10, 76WH9, 76N4, 76LG6, 80BA6. Trials not assessed in 1982, 77WH2 Pasture phase. Miscellaneous trials. Long term trials, 66M30, 65Al, 65A1, 65C5, 69WH15, 75LG26, 81N044, 78BA7. 1982 Trials, 82N04, 82BA2, 82N02, 82N05, 82WH2, 81N044.
Trace Element Nutrition., R F. Brennan, M M. Riley
Trace Element Nutrition., R F. Brennan, M M. Riley
Experimental Summaries - Plant Research
Long term copper trial - Newdegate Research Station 66 N 14. Rates of copper and methods of application on new land 82 Me 43. Wheat response to zinc rates 81 Mo 8. Zinc, sulphur and copper residual with DAP for wheat 78 LG 27. Manganese residual on lupins 78 Ba 26. Manganese on wheat 82 No 8. Manganese on wheat, barley, oats and lupins 82 Br 4. Manganese, zinc, magnesium and lime on wheat varieties 82 Je 21. Foliar application of molybdenum to wheat 82 Me 74. Foliar application of molybdenum to wheat 82 TS 41. Molybdenum and ammonium sulphate …
Land Degradation In The Fitzroy Valley Of Western Australia, Department Of Agriculture, Western Australia. Rangeland Management Branch
Land Degradation In The Fitzroy Valley Of Western Australia, Department Of Agriculture, Western Australia. Rangeland Management Branch
Resource management technical reports
The report reassesses the condition of formerly valuable grazing lands of the Fitzroy River valley frontage lands. It is hoped that the submission will promote discussion on the problems of degenerated pastoral land and increase the resolve of all concerned to take the necessary action for their restoration. The frontage lands flank the major rivers of the area, the Fitzroy, the Margaret and the Meda and their tributaries. The frontage is capable of supporting the best pastures in the Kimberley, but unwise and uncontrolled stocking has profoundly degraded and eroded the most productive parts. There are about 5,800 square kilometres …
Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti
Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti
Experimental Summaries - Plant Research
Loose smut of barley. Fungicidal control of loose smut in barley – 81MT31, 81NA29. Sub-clover root rot. Fungicidal control of pythium sp – 81AL37, 81BU3. Rapeseed diseases. 1. Rapeseed varieties/Lancelin blackleg strain – 81MO24. 2. Rapeseed varieties/Sclerotinia disease – 81MT32. 3. White leaf spot and grey stem of rapeseed – 81MT33.
Sulphur Nutrition Of Pastures And Crops, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands, Soil Acidity - High Rainfall Pastures, J S. Yeates, M F. Clarke
Sulphur Nutrition Of Pastures And Crops, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands, Soil Acidity - High Rainfall Pastures, J S. Yeates, M F. Clarke
Experimental Summaries - Plant Research
A. SULPHUR - HIGH RAINFALL 1. Rates and time of application of superphosphate to pastures. 79AK2, 79AL23, 79AL25, 79AL41, 81BY1, 81KE1. 2. Sulphur soil test calibration on pastures. 79AL18, 80BY2, 80KE2. 3. Sulphur soil test calibration on pastures: Co-operative PKS soil test project on pastures on duplex soils of the east Albany area (PRD/ARO). Sulphur results. 80 AL44, 46, 47, 48, 72, 73 81AL51, 53, 55 4. Sulphur on adsorbing soils receiving no current S input. 80BY1., 80AL16. 5. Sources, rates, time of application of sulphur on pastures. 80AL1, 80AL4, 81AL3, 81AL4, 80KE1, 80MA1 B. SULPHUR - LOW RAINFALL 1. …
Pasture Trials At Esperance, M Da Bolland
Pasture Trials At Esperance, M Da Bolland
Experimental Summaries - Plant Research
Introduction. Most of the 1981 data viz seed yield results, and hardseed data, has not yet been completely processed, and thus only some of the data can be presented in this summary. Section i: Medic species trials – 80SG39, 80SG23, 80SG24, 80ES65(a), 80ES21 (a). Section ii: Lucerne variety trials – 81ES28, 81ES25, 81ES29, 81ES30, 81ES31.
Doublegee Seed Dormancy. Lupins -Weed Control,Herbicides, New Products, D J. Gilbey
Doublegee Seed Dormancy. Lupins -Weed Control,Herbicides, New Products, D J. Gilbey
Experimental Summaries - Plant Research
Doublegee seed longevity x depth - 75WH66, 76C9, 76KA8. Grass control in dry sown lupins – 81A46, 81GE21, 81TS33. Broadleaf weed control in dry sown lupins – 81TS34, 81A47. Early post-emergence weed control – 81GE20. Early post-emergence weed control - lupins - 81TS32, 81A45. Post-emergence grass control in lupins. Post-emergence grass control in lupins None of the mixtures of Barban with Hoegrass and Matavin controlled the main target, Bromegrass. No significant differences due to treatments were detected in grain yields except at Avondale where annual ryegrass was the main grass weed which was controlled readily by the Hoegrass treatments as …
1981 Trace Element Nutrition, J. W. Gartrell, R F. Brennan
1981 Trace Element Nutrition, J. W. Gartrell, R F. Brennan
Experimental Summaries - Plant Research
1. Long term copper trial - Newdegate Research Station - 66N14. 2. Zinc residual with OAP for wheat - 80NO31. 3. Zinc residual with OAP for wheat - 79ME22. 4. Zinc residual with OAP for wheat - 79ME23. 5. Zinc, sulphur and copper residual with OAP for wheat - 79WH66. 6. Wheat response to zinc rates - 81MO8. 7. Manganese on wheat and oats - 81KA29. 8. Molybdenum and ammonium sulphate (S/A) on wheat - 81NO40. 9. Molybdenum and ammonium sulphate on wheat - 81NO41. 10. Molybdenum and ammonium sulphate on wheat - 81NO39. 11. Mo, lime, Mg on sub. …
Nitrogenous Fertiliser Requirements In Different Cropping Rotations 1981 Results, M G. Mason, I C. Rowland
Nitrogenous Fertiliser Requirements In Different Cropping Rotations 1981 Results, M G. Mason, I C. Rowland
Experimental Summaries - Plant Research
Nitrogen Requirement of Wheat After Clover, Lupins and Cereal – 78C1, 80BA3, 78N1. Nitrogen Requirement of Barley After Clover, Lupins and Non Legume – 78E3. Nitrogen Fertiliser Requirement in Alternate Crop-Pasture Rotation – 78BA1, 78WH2. Nitrogen Fertiliser Requirement in a Lupin - Wheat Rotation – 81LG29.
Part 1. A. Take-All Of Cereals B. Rhizoctonia C. Pythium Root Rot Of Wheat, Part 2, A. Minimum Tillage Trials., G S. Macnish
Part 1. A. Take-All Of Cereals B. Rhizoctonia C. Pythium Root Rot Of Wheat, Part 2, A. Minimum Tillage Trials., G S. Macnish
Experimental Summaries - Plant Research
Take-all following cleaning crops. Take-all build-up on new land rotation. Take-all build-up and rates of phosphorus on wheat. Long-term rotation and take-all. Take-all incidence in cereal/lupin rotation. Take-all incidence in a wheat/clover or/pasture rotation. Continuous wheat and take-all. Rhizoctonia patch of cereals. Rhizoctonia mapping experiment. Rhizoctonia patch - control. Pythium root rot of wheat. Part 2. Sprayseed followed by direct drilling with triple disc drill. Plough, Sprayseed followed by direct drilling with triple-disc drill. Sprayseed followed by direct drilling with combine. Cult + seed with combine - Sprayseed followed by cultivation followed by drilling with combine. For this report the …