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Articles 1021 - 1050 of 1555
Full-Text Articles in Soil Science
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Experimental Summaries - Plant Research
The effect of grazing on Circle Valley medic production. Effect of rotations on M. polyrnorpha production and persistence and cereal crop yields, 84 KA 35, 85 LG 44, 84 KA 37 Effect of tillage x gypsum x nitrogen on continuous cereal production, 84 KA 28. Effect of gypsum x seeding rate on the seed yield of three pasture legumes. Pasture species tolerance to grass and broadleaf herbicides. Undersowing cereal crops with burr medic.
Grain Legume Agronomy Programme., G. H. Walton
Grain Legume Agronomy Programme., G. H. Walton
Experimental Summaries - Plant Research
Lupin agronomy, 85AL4, 85AL6, 85M05, 85PE13, 81M029, 81M030, 81M027. Grain legume crop comparisons, 85LG23, 85LG24, 85LG25, 85E23, 85GE28, 85C71, 85ME35, 85KA7, 85E2, 85N5, 85N04, 85SG2, 85E34, 85LG38, 85LG40, 85MN2, 85MD25, 85MN1.
Molybdenum Nutrition., M. M. Riley
Molybdenum Nutrition., M. M. Riley
Experimental Summaries - Plant Research
Field trials. Residual value of Molybdenum on an acid soil, 81N040. Residual value of Molybdenum on an acid soil, 81M2. Residual value of Molybdenum of an acid soil, 81LG12. Residual value of Molybdenum on an acid soil, 82N07. Residual values of different Molybdenum sources, 84Me10. Residual values of different Molybdenum sources, 84Ge49 Forms and rates of soil and seed applied Molybdenum, 84Me9. Molybdenum requirements of wheat, triticale and lupins, 84Me8. Residual values of Molybdenum with different nitrogen sources, 85M40. The Molybdenum nutrition of various crop and pasture cultivars, 85Mo42. Molybdenum with pre-emergent herbicides, 85TS21. Glasshouse experiments. Reactions of Molybdenum with …
Agronomy Of Oat Varieties., W. K. Anderson
Agronomy Of Oat Varieties., W. K. Anderson
Experimental Summaries - Plant Research
Nitrogen rates x oat varieties, 85MT47. Seed rates x oat varieties, 85MT48. Time-of-sowing x oat varieties, 85MT49. Applied Phenology in crop variety testing, 85WH5, 85N4.
Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing
Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing
Journal of the Department of Agriculture, Western Australia, Series 4
Western Australia's Upper and Lower Great Southern statistical areas include most of the broad-scale agricultural land south of a line from Perth to Hyden. Much of the area is well-developed and carries 13.4 million sheep, 203 00 cattle and 95 000 pigs, almost half the State's livestock.
There are few natural rivers and lakes to water livestock in summer and much of the bore water is salty. On-farm waterr conservation, therefore, consits mainly of excavated earth tanks (dams) which are filled by surface runoff or shallow seepage. In the drier areas and in the sandplain roaded catchments have neen built …
Drainage Prospects For Saline Wheatbelt Soils, P R. George
Drainage Prospects For Saline Wheatbelt Soils, P R. George
Journal of the Department of Agriculture, Western Australia, Series 4
Sub-surface or groundwater drainage by buried tube drains or open ditches can reclaim saltland in the Western Australian wheatbelt. However, this method is expensive and not all sites can be drained cost-effectively. Each drainage site is unique, so careful investigation of each site is essential before recommendations on drainage method and design can be made.
The Taarblin Experience : A Planned Approach To Soil Conservation, Greg Astbury, Owner/Manager Of Taarblin, Tim Negus
The Taarblin Experience : A Planned Approach To Soil Conservation, Greg Astbury, Owner/Manager Of Taarblin, Tim Negus
Bulletins 4000 -
Many farms in Western Australia were cleared and developed before there was a full and clear understanding of the effects of bush clearing - that is salinization of soil and water supplies, wind and water erosion, waterlogging and soil structure decline. The productive capacity and inherent problems of the different soil types was also largely unknown.
Modern-day Conservation Farm Planning aims to provide a blue-print for the redevelopment of properties to ensure long term soil fertility, to prevent soil erosion and degradation by waterlogging and salinity. It also provides for a spread of reliable stock watering points and more efficient …
Shire Of Rockingham : A Study Of Land Resources And Planning Considerations, Veronica P M Oma, N L B Richards, M R. Wells
Shire Of Rockingham : A Study Of Land Resources And Planning Considerations, Veronica P M Oma, N L B Richards, M R. Wells
Resource management technical reports
No abstract provided.
Cereal Weed Control, Cereal Disease, Roundup Effects On Wheat & Barley, Noxious Weed Control., J. H. Moore, E. B. Hoskins, G. Dean
Cereal Weed Control, Cereal Disease, Roundup Effects On Wheat & Barley, Noxious Weed Control., J. H. Moore, E. B. Hoskins, G. Dean
Experimental Summaries - Plant Research
Pre-seeding Grass Control, 85AL41. Sorrel control with Ally, 85AL39. Capeweed control pre-seeding, 85AL40. Effect of PP 450 on wheat diseases, 83AL36. Roundup effects on wheat and barley, 85AL64. History effects on wheat responses, 85AL42. Garlon 480 time of spraying on blackberry. Blackberry herbicide (high volume) demonstrations and observations. Blackberry herbicide (low volume) demo sites. Comparison of sprayers and spray volume for blackberry control. Blackberry herbicides screening. Krenite on blackberry, 76 AL 8. Methods of Krenite application for blackberry Control. Blackberry Wettability. Ropewick applied 2,4-D Amine for Arum Lily control. Arum lily herbicide screening. Herbicide screening for Arum lily control. Herbicide …
Influence Of Soil Acidity On Barley Production., P. J. Dolling, A. R. Little
Influence Of Soil Acidity On Barley Production., P. J. Dolling, A. R. Little
Experimental Summaries - Plant Research
A soil survey of 38 sites in barley growing areas of Western Australia was carried out in 1984. It was found that 53% of topsoils surveyed had a pH less than 5.5, acid enough to suspect barley yields might be affected. In 1985 an extensive field trial proqramme was established at 9 sites. The sites were selected from the 1984 survey and they varied in their level of acidity from mild to severe. 85NA, 85NA2, 85NA5, 85NA4, 85NA3, 85KA3, 85KA4, 85KA5, 85KA6, 83N046,
Manganese Deficiency - Plant Nutrition., J. W. Gartrell, T. C. Johnston, M. M. Riley
Manganese Deficiency - Plant Nutrition., J. W. Gartrell, T. C. Johnston, M. M. Riley
Experimental Summaries - Plant Research
Effectiveness of different fertilizers for correcting manganese deficiency in wheat
Apparent critical levels in field experiments
Differences between wheat varieties in ability to absorb and utilize soil and fertiliser manganese under deficiency and near-deficiency conditions in the Great Southern.
84N03, 84N04, 84N05, Mean of 3 experiments, 84N07, 84N06, 85N068, 85N064, 85N065, 85N066, 85N067, 85N069, 85LG36.
Low Tillering Cereals, Early Maturity Of Cereals, Cereal Variety And Reduced Branching Lupins., R. Delane, J. Hamblin
Low Tillering Cereals, Early Maturity Of Cereals, Cereal Variety And Reduced Branching Lupins., R. Delane, J. Hamblin
Experimental Summaries - Plant Research
Trial 85C62 - growth and water use of low tillering cereals. Trial 85C62 - yield potential of low tillering cereals. Trial WEUNI - response of low tillering breeding lines and standard varieties to sowing rate. Trial 85C45 - effect of flowering date, seeding rate, deep tillage and applied nitrogen on yield of barley. Trial 85C61 - wheat variety x management interaction on sandplain. Trial 85C55 - growth and water use of reduced branching lupins. Trial 85C56 - normal and reduced branching lupins - planting density response.
Nitrogenous Fertilisers For Cereals, Results., M. G. Mason
Nitrogenous Fertilisers For Cereals, Results., M. G. Mason
Experimental Summaries - Plant Research
78C3, 78WH, 78M, 85C1, 85C2, 85BA1, 85BA2, 85WH, 85WH2, 85A1, 85A2, 85M1, 85M2, 85N1, 85N2, 85MT1, 85MT2, #78BA1, #78WH2, #80BA3, 85M01, 85WH3, 85M06, 85M07, 85M08, 85M09, 85M010, #80WH3, #80M1, #80N3, 85ME73, 85ME7, #85M4, #81LG29, 85N3, 85E1, #84MA2, #84WH46,
A Study Of Alternative Sites For Equestrian/Hobby Farm Development In The Karratha Area, Bernard Kok
A Study Of Alternative Sites For Equestrian/Hobby Farm Development In The Karratha Area, Bernard Kok
Resource management technical reports
This report has been prepared in response to a request from the Shire of Roebourne to assess the land use capabilities for equestrian/hobby farm development in the Karratha area.The report comprises five parts; a brief review of the areas climate,discussion of the geological soil units and vegetation, water supply, alternative areas of development and recommendations.
A Resource Survey Of The Coastal Lands From Vlaming Head To Tantabiddi Well, West Cape Range Region, P A. Hesp, J G. Morrissey
A Resource Survey Of The Coastal Lands From Vlaming Head To Tantabiddi Well, West Cape Range Region, P A. Hesp, J G. Morrissey
Resource management technical reports
The report comprise four parts; a brief review of the area's climate, discussion of the geomorphology of the major landform units, an assessment of the potential erosion hazards of the surveyed landforms, and recommendations for development.
Plant Collections For Saltland Revegetation And Soil Conservation, A J. Clarke, T C. Swaan, C V. Malcolm
Plant Collections For Saltland Revegetation And Soil Conservation, A J. Clarke, T C. Swaan, C V. Malcolm
Technical Bulletins
In 1967, during an overseas plant exploration trip, seeds of plants of reputed salt tolerance and forage value were obtained from seven countries. Since 1971, over 600 plants have been added to the original collection of 343 plants already under observation for suitability for forage production in saline and arid areas. Additions to the test programme since 1971, include shrubs from Algeria; Argentina; Australia; Chile; England; Iran; Israel; Libya; Morocco; Netherlands; Russia; South Africa; Spain; Tunis and the United States of America. This Bulletin includes details of all plant collections from 1966 to December 1983.
A Land Unit Survey Of The Proposed Kings Park Botanic Garden Annex, Wungong, M R. Wells
A Land Unit Survey Of The Proposed Kings Park Botanic Garden Annex, Wungong, M R. Wells
Resource management technical reports
No abstract provided.
Soil Conservation Research In New South Wales And Its Significance To Research On Water Erosion In Western Australia, D J. Mcfarlane
Soil Conservation Research In New South Wales And Its Significance To Research On Water Erosion In Western Australia, D J. Mcfarlane
Resource management technical reports
No abstract provided.
Water Erosion On Potato Land During The 1983 Growing Season Donnybrook, D J. Mcfarlane
Water Erosion On Potato Land During The 1983 Growing Season Donnybrook, D J. Mcfarlane
Resource management technical reports
Soil losses over a three month period varied from 10 to 49 mm.. Soil loss was most highly correlated with length of slope of the plots. Other important factors appeared to be slope angle and soil textures. Grade furrows appear to be the best method of breaking-up long slope lengths. The low capacity of the furrows requires them to be on grades of about 4 to 4 per cent to prevent siltation and overtopping during high density storms.
Summary Of Medic-Rhizobium Field Experiments 1983 – 1984, J G. Howieson
Summary Of Medic-Rhizobium Field Experiments 1983 – 1984, J G. Howieson
Experimental Summaries - Plant Research
Trials 83ME9, 83ME87, 82ME22, 82ME22A, 82ME23.
Method.
Comments
Pasture Research Programme For The Medium Rainfall Zone Of Wa, C K. Revell, C W. Thorn
Pasture Research Programme For The Medium Rainfall Zone Of Wa, C K. Revell, C W. Thorn
Experimental Summaries - Plant Research
Field Assistants: I.R. Rose S.P. Davis Soil Analysis: I.A. Pritchard. A. Screening trials M. polymorpha var brevispina. M. truncatula. T. cherleri - 84KA41, 84KA42, 84KA43, 84KA47. B. Large scale M. polymorpha evaluation - 84KA38, 84KA39, 84KA40, C. Long term Medic species evaluation - 82KA44, 82KA45. D. Species characterization trials - 83KA66, 83KA67. E. M. murex evaluation - 83KA45. F. Dwalganup replacement subclovers - 83KA69. Since 1981, the major emphasis of the Katanning pasture programme has been to select pasture species suitable for replacing ryegrass on soils where Annual Ryegrass Toxicity (ARGT) has been a major problem. These soils have traditionally …
Cercospora Disease Of Subterranean Clover, Root Rot, Cereal Smuts, Rapeseed Diseases, M J. Barbetti
Cercospora Disease Of Subterranean Clover, Root Rot, Cereal Smuts, Rapeseed Diseases, M J. Barbetti
Experimental Summaries - Plant Research
Cercospora disease of subterranean clover: - . Susceptibility to and losses from cercospora on sub-clover cultivars. Locality: Bibby Springs, Cervantes. (84M073, 84M075, 84M076). Subterranean clover root rot: - Seed treatments for root rot control. Locality: Albany (84AL39); Scott River (84 BU11). Fungicide drenches for root rot control. Locality: Perth (84PE22) using intact cores from Albany and Scott River. Cultivar screening for resistance to root rot fungi. Locality: Perth (84PE24) with field plantings at Albany and Scott River. Methyl bromide fumigation for control of sub-clover root rot. Locality: Vasse Research Station (84V15). Two sites. Cereal smuts – Fungicidal control of loose …
Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases, R F. Brennan
Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases, R F. Brennan
Experimental Summaries - Plant Research
1. Split Applications of Nitrogen and Take-all 84N1. 2. Split Applications of Nitrogen and Take-all 84E2. 3. Split Applications of Nitrogen and Take-all 84MT4. 4. Split Applications of Nitrogen and Take-all 84LG1. 5. Nitrogen and Phosphorus Rates and Take-all 83ES41. 6. Nitrogen and Phosphorus Rates and Take-all 83ES42. 7. Nitrogen and Phosphorus Rates and Take-all 83ES43. 8. Micronutrients (Cu, Zn) and Take-all 83ES39. 9. Micronutrients (Cu, Zn) and Take-all 83ES40. 10. Cu Residual on Wheat and Take-all 67E9. 11. Cu Residual on wheat and Take-all 67E8. 12. Take-all and Manganese/Ammonium Interaction 84LG2. 13. Take-all and Manganese/Ammonium Interaction 84MT5. 14. Take-all …
Chemical Manipulation Of Pasture Leys To Regulate Composition Ll., C W. Thorn, M W. Perry, P Fievez
Chemical Manipulation Of Pasture Leys To Regulate Composition Ll., C W. Thorn, M W. Perry, P Fievez
Experimental Summaries - Plant Research
Introduction.
Materials and methods.
Experimental design.
Sowing.
Herbicides.
Measurements.
Results.
Discussion.
Conclusions.
Soil Acidity On High Rainfall Pastures, J S. Yeates, D. A. Mcghie, I. R. Wilson
Soil Acidity On High Rainfall Pastures, J S. Yeates, D. A. Mcghie, I. R. Wilson
Journal of the Department of Agriculture, Western Australia, Series 4
Most soils of the high rainfall area of south-western Western Australia are naturally acis.
The most acid group of soils, the peaty sands. have been routinely limed before subterranean clover pastures were established since research in the 1950s showed that poor Rhizobium nodulation could be overcome with the application of about 2 tonnes per hectare of coastal limesand.
Soil Improvement With Bauxite Residues, W H. Tacey, S. C. Ward, K. J. Summers, N. J. Barrow
Soil Improvement With Bauxite Residues, W H. Tacey, S. C. Ward, K. J. Summers, N. J. Barrow
Journal of the Department of Agriculture, Western Australia, Series 4
The sandy soils of the Peel-Harvey catchment hold water and nutrients very poorly. The Gavin ridges dry out quickly during rainless periods and this severely limits pasture growth. These ridges and the lower lying Joel and Coolup sands also lose a large proportion of the phosphorus, sulfer and potash fertilisers applied to them. Normally the sands lack clay materials to bind and hold the nutrients so rainfall leaches them out.
The Peel-Harvey Study Group, CSIRO, Alcoa and Murdock University have studied the use of a residue from bauxite mining to help overcome these problems. The treated residue has a texture …
Soil Acidity And Legume Nodulation, J G. Howieson, M. A. Ewing
Soil Acidity And Legume Nodulation, J G. Howieson, M. A. Ewing
Journal of the Department of Agriculture, Western Australia, Series 4
Nitrogen is a basic constituent of protien and is essential to all forms of life. Many agricultural plants are legumes - a group of plants which, in co-operation with specialised soil bacteria, fix their own nitrogen from the air. When the legume dies, the organic matter breaks down anf the nitrogen becomes available to the following crops.
Soil acidity is a major factor limitimg the successful association between legumes and their beneficial soil bacteria in Western Australia.
Breeding Wheat Varieties For Acid Soils, I R. Barclay
Breeding Wheat Varieties For Acid Soils, I R. Barclay
Journal of the Department of Agriculture, Western Australia, Series 4
Wheat varieties with improved tolerance of acid soils cold increase yeilds be perhaps 20 per cent or more over a substantialarea ofWestern Australia's eastern wheatbelt.
Aluminium toxicity is probably the main cause of poor root growth and therefore reduced yields on these soils.
Sources Of Lime In The South-West, I M V Brown
Sources Of Lime In The South-West, I M V Brown
Journal of the Department of Agriculture, Western Australia, Series 4
Many Western Australian farmers topdress or incorporate lime into their acid soils to neutralise them and to improve crop or pasture yields. Most use pulverised limestone or limesand which is cheap and relatively easy tospread.
Agricultural lime isdefined as "any fertiliser used principally for the purpose of reducing soil acidity and having calcium carbonate or magnesium carbonate, or both, as its main ingredients".
Less extensive sources of liming material are found in scattered inland areas where deposits of calcrete have been formed by the weathering of calcium-rich rock and also in association with internal drainage systems.
Magnesite, generally formed by …
Soil Acidity In The Eastern Wheatbelt, W M. Porter, I. R. Wilson
Soil Acidity In The Eastern Wheatbelt, W M. Porter, I. R. Wilson
Journal of the Department of Agriculture, Western Australia, Series 4
In Western Australia parts of the sandplain of the eastern wheatbelt are very acid and produce poor crops, It was not until the late 1970s that the effect of soil acidity on the productivity of the sandplain soils was examined in any detail.
Since then researchers have learnt a great deal about the nature of soil acidity in the eastern wheatbelt sandplain soils and can suggest management options for farmers.
This article discisses the problem of the very acid soils. It does not deal with the moderately acid, medium textured soils of the eastern wheatbelt. Although the acidity of these …