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Articles 931 - 960 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Nitrogenous Fertilizers For Cereals In Different Rotations Results From 1987 Trials, I Rowland, M G. Mason
Nitrogenous Fertilizers For Cereals In Different Rotations Results From 1987 Trials, I Rowland, M G. Mason
Experimental Summaries - Plant Research
Lupin/Wheat Rotation *86T826, 86M44, 86WH36, 86T826.
Nitrogen Fertilizer Requirement in Alternate Crop-Pasture Rotation 78BA1 ,78WH2
Nitrogen Requirement for Wheat After Clover, Lupins and Cereal 86BA3
Pea/Wheat Rotation 86M39, *86ME64
The Effects Of Rates Of Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan
The Effects Of Rates Of Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan
Experimental Summaries - Plant Research
To examine the possibility of rates of nitrogen inducing copper and zince deficiency in wheat.
86E44
Residual Value Of Phosphate Fertilizers., M D A Bolland, M Baker, C. H. Phillips, D. Proudmore
Residual Value Of Phosphate Fertilizers., M D A Bolland, M Baker, C. H. Phillips, D. Proudmore
Experimental Summaries - Plant Research
Trial 84M63
Residual value of phosphate fertilizers.
Location: South Carrabin Block of Merredin Research Station.
4th successive crop on new land. Trial has shown that the effectiveness of the different types of rock phosphate were about the fifth to one tenth as effective as the fresh (triple) superphosphate applied in 1984. The effectiveness of the superphosphate, decreased by 60 between year 1 and 2, and by a further 10-15% by 1987. This experiment will continue as pasture for 1988 and 1989, and will be re-cropped in 1990. The experiment is also assessing soil testing for P. but soil test data …
Evaluation Of New Pasture Legume Species In Terms Of Summer Feeding Value And Effects On Wool Production., S E. Flecker, C W. Thorn, J. B. Rowe, Tess Casson
Evaluation Of New Pasture Legume Species In Terms Of Summer Feeding Value And Effects On Wool Production., S E. Flecker, C W. Thorn, J. B. Rowe, Tess Casson
Experimental Summaries - Plant Research
86KA71, Pasture legumes improve the feeding value of summer pastures in a mediterranean-type environment by maintaining the protein intake of grazing animals over the dry summer period, much of which comes from the ingestion of legume burr (A.D. Wilson and N.L. Hindley, 1968). Some of the most important species of pasture legumes to have been released commercially are Trifolium subterraneum (sub.clover), Medicago truncatula (barrel medic) and Medicago polymorpha (burr medic) (D.B. Purser, G.B. Taylor and W.J. Collins, 1987). What little information is available on the feeding value of these species suggests that barrel medic pod (H. Brownlee, 1973) and dry …
Reactions Of Molybdenum With Soil Affecting Its Availability To Wheat Plants V. Initial Residual Effectiveness For A Range Of Acidic Yellow-Brown Sandy Soils, M M. Riley
Experimental Summaries - Plant Research
To relate the molybdenum adsorption capacities of a range of acidic, yellow-brown sandy soils to the initial and residual effectiveness of molybdenum added to these soils for the growth of wheat. 87GL2
Trial 80na6, I Rowland., W Hawkins
Trial 80na6, I Rowland., W Hawkins
Experimental Summaries - Plant Research
Trial 80NA6. Location - B. Harrington, 6 km west of Darkin.
Cleared 1962, cropped 1977 (oats), 1978 (oats and Lupins), pasture in 1979. Continuously cropped to cereals up to 1986, then changed to wheat after wheat, lupins or clover.
Trial 67c13, I Rowland, W Hawkins
Trial 67c13, I Rowland, W Hawkins
Experimental Summaries - Plant Research
Trial 67C13. Location paddock 19B on Chapman Research Station (Nabawa).
Long term rotation trials.
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.
The Effects Of Rates Of Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan
The Effects Of Rates Of Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan
Experimental Summaries - Plant Research
To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.
87JE22
Effects Of Rates Of Nitrogen On Copper Concentrations, Dry Matter Production And Grain Yield Of Wheat Grown On A Residual Copper Trial., R F. Brennan
Experimental Summaries - Plant Research
Trial 67E9
Location: Esperance Downs Research Station.
The trial was originally designed to measure the residual effectiveness of rates of copper fertilizer drilled in 1967.
Pasture Agronomy Branch, Pasture Growth Rates., P Booth
Pasture Agronomy Branch, Pasture Growth Rates., P Booth
Experimental Summaries - Plant Research
Location: Shire of Augusta-Margaret River, Shire of Elgin and Shire of Bridgetown-Greenbushes.
To quantify and identify insect and fungal losses of annual pasture production caused through seedling mortality and early production losses. Three sites in the Margaret River/Augusta Shire, one in the Elgin Shire and one in the Bridgetown Shire were used.
Effect Of Zinc On Boron Toxicity In Barley, M M. Riley
Effect Of Zinc On Boron Toxicity In Barley, M M. Riley
Experimental Summaries - Plant Research
To examine the suggestion that adding zinc to the soil will lessen the severity of boron toxicity in barley. 87SG6/4864
Root And Foliar Diseases Of Cereals On Sandplain In The Geraldton Area 1987, Wilson Jill
Root And Foliar Diseases Of Cereals On Sandplain In The Geraldton Area 1987, Wilson Jill
Experimental Summaries - Plant Research
Rotation trial (common root rot), 87GE87.
Inoculation trials (common root rot), 87GE88.
Common root rot surveys.
Cereal management trial, 87GE97.
The Effect Of Soil Acidity On Barley, P J. Dolling, T. D. Haines
The Effect Of Soil Acidity On Barley, P J. Dolling, T. D. Haines
Experimental Summaries - Plant Research
Three liming experiments were established to confirm previous estimates of the critical soil acidity level for barley. Two experiments studying the effect of depth of incorporation on the effectiveness of lime, established in 1986, were continued in 1987.
The results from the three liming experiments established this year supported the conclusion that barley is affected by soil acidity at pH's around 4.2 and 4.3 (CaC12) and that depth of this acid layer is important.
Significant lime responses were obtained at the Katanning depth of lime incorporation site but conclusions can not be made because of possible mixing of …
Nitrogen And Phosphorus Rates On Wheat, J W. Bowden
Nitrogen And Phosphorus Rates On Wheat, J W. Bowden
Experimental Summaries - Plant Research
Trial 87MO69
Nitrogen and phosphorus rates on wheat.
Location: Cadoux
To characterize an N x P response surface on wheat and test out recommendation system, NP Decide.
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 …
Individual Trial Data., P J. Dolling
Individual Trial Data., P J. Dolling
Experimental Summaries - Plant Research
Responses to species of lime.
87NA91
87A137
87KA77
Effect Of Seed-Dressed Molybdenum On Fungicides., M M. Riley
Effect Of Seed-Dressed Molybdenum On Fungicides., M M. Riley
Experimental Summaries - Plant Research
To examine if seed-dressed molybdenum affects the effectiveness of seed-dressed fungicides in controlling flag smut of wheat. 87No86
Investigation Of A Saline Valley On Allandale Research Farm, D J. Mcfarlane, R Engel, A T. Ryder
Investigation Of A Saline Valley On Allandale Research Farm, D J. Mcfarlane, R Engel, A T. Ryder
Resource management technical reports
Geophysical surveys and drilling were used to investigate a saline valley on Allandale Research Farm. These techniques showed that the geology is controlling the location of two main areas of saline seeps and they identified another area at risk of increased salinity. They were also used to obtain information on the groundwater system and to assist in making management recommendations.
Electromagnetic terrain conductivity surveys showed that the most saline soils occurred upstream of a cross-cutting magnetic anomaly caused by a dolerite dyke. A seismic survey showed that the anomaly coincided with a bedrock rise. This bedrock rise restricts groundwater flow …
Banks : A Method Of Financially Assessing Banks Used To Mitigate Water Erosion In South-Western Australia, John S. Salerian, D J. Mcfarlane
Banks : A Method Of Financially Assessing Banks Used To Mitigate Water Erosion In South-Western Australia, John S. Salerian, D J. Mcfarlane
Resource management technical reports
No abstract provided.
Evaporation Data For Western Australia, G J. Luke, K L. Burke, T M. O'Brien
Evaporation Data For Western Australia, G J. Luke, K L. Burke, T M. O'Brien
Resource management technical reports
No abstract provided.
Water Use By Some Crops And Pastures In The Southern Agricultural Areas Of Western Australia, R A. Nulsen, I N. Baxter
Water Use By Some Crops And Pastures In The Southern Agricultural Areas Of Western Australia, R A. Nulsen, I N. Baxter
Resource management technical reports
No abstract provided.
The Land Resources And Carrying Capacity Of Gascoyne Locations 228 And 229, North Of Carnarvon, Western Australia, M R. Wells, Veronica P M Oma, Alexander Mcrae Holm
The Land Resources And Carrying Capacity Of Gascoyne Locations 228 And 229, North Of Carnarvon, Western Australia, M R. Wells, Veronica P M Oma, Alexander Mcrae Holm
Resource management technical reports
No abstract provided.
Storage Life Of Farm Dams, G J. Luke, C G. Denby
Storage Life Of Farm Dams, G J. Luke, C G. Denby
Resource management technical reports
No abstract provided.
Water Erosion Survey In The Northam District After Storms In June 1986, D J. Mcfarlane, A T. Ryder
Water Erosion Survey In The Northam District After Storms In June 1986, D J. Mcfarlane, A T. Ryder
Resource management technical reports
No abstract provided.
Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards
Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards
Resource management technical reports
The problems of wind erosion in part of the south coast of Western Australian sandplain area were described previously (Gorddard et al, 1981) with 7.3 per cent of cleared and 18.3 per cent of the cropped area showing evidence of sand blasting. Department of Agriculture trials have shown that the loss of the top four millimetres of top soil from pastured paddocks can reduce following crop yields by up to 20 per cent (Marsh and Carter, 1983). Animal production problems associated with wind erosion of soils have not been quantified, but a number of problems such as reduced carrying capacity …
Survey Of Research Priorities In Water Erosion, Waterlogging And Flooding In South-Western Australia, D J. Mcfarlane, E G. Barrett-Lennard
Survey Of Research Priorities In Water Erosion, Waterlogging And Flooding In South-Western Australia, D J. Mcfarlane, E G. Barrett-Lennard
Resource management technical reports
No abstract provided.
Barley Agronomy., K. J. Young
Barley Agronomy., K. J. Young
Experimental Summaries - Plant Research
Trial 87E6, 87MT45, 87SG11, 87ES8
Locations: Esperance Downs Research Station, Mount Barker Research Station, Salmon Gums Research Station, Melijinup Field Station,
Barley variety x time of planting
To study phenological development and its effect on yield in a range of barley cultivars at four planting dates.
Trial 87E42
Aphicide toxicology x barley variety.
Location: EDRS
To measure the effect of disulfoton (Disyston *R) applied as granules at seeding on barley, to determine if there is any phytotoxicity.
Trial 87ES40, 87E32
Barley variety x cereal aphids.
Location: Malijinup Field Station, Esperance Downs Research Station
To study the development of cereal aphids …
Field Peas In The Wheatbelt, R J. French
Field Peas In The Wheatbelt, R J. French
Journal of the Department of Agriculture, Western Australia, Series 4
Plantings of lupins in the Western Australian wheatbelt increased rapidly in the late 1970s and early 980s as improved varieties became available and farmers realised the benefits to be gained from growing grain legumes. Grain legumes are useful not simply as alternative cash crops. They provide 'fixed' atmospheric nitrogewn to following cereal crops and act as a cleaning crop to break cereal disease cycles. They are also valuable sheep feed.
In 1975, throughout the wheatbelt, the Department of Agriculture began a comparison of several alternative legumes. The crops included field peas, faba beans, chickpeas, lentills and various vetches. Field peas …
The Role Of Minimum Tillage On The South Coast Sandplain Soil : A Literature Review, W L. Crabtree
The Role Of Minimum Tillage On The South Coast Sandplain Soil : A Literature Review, W L. Crabtree
Resource management technical reports
No abstract provided.
Phosphorus Nutrition, M Da Bolland
Phosphorus Nutrition, M Da Bolland
Experimental Summaries - Plant Research
76WH10, 77WH2, 77MT2, Phosphorus sources trial.
84NO69, 84E31, 84M63, Residual value of phosphate fertilisers.
86M1, Residual value of superphosphates for lupins and wheat grown in a 1-year lupin: 1-year wheat rotation.
85NO63, 85KA79, Assessment of different soil and plant tissue methods for determining the phosphorus requirement of several crop and pasture species.
85KA78, Assessment of different soil and plant tissue methods for determining the P requirements of crop and pasture species.
86N01, Residual value of superphosphate.
85BA34, Residual value of superphosphate for lupins, wheat and barley.
85BA35, Residual value of superphosphate for lupins:oat:wheat rotation