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Full-Text Articles in Physical Sciences and Mathematics
Soil And Plant Analysis : A Guide To Fertilizer Usage, Walter Jacob Cox
Soil And Plant Analysis : A Guide To Fertilizer Usage, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
Soil and plant analysis can be used to identify problems in soils, diagnose nutrient deficiencies and as a guide to fertiliser usage.
Soil testing is particularily useful where large amounts of phosphorus and potassium are leached or removed from the paddock in hay or silage.
Actual rates of fertiliser can only be recommended from soil testing and only in conjunction with additional biological and economic information.
Potassium Deficiency In Lupins : Identification, Rates, Times And Method Of Application, Walter Jacob Cox
Potassium Deficiency In Lupins : Identification, Rates, Times And Method Of Application, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
Large areas of sandplain soils north of Perth are low in potassium levels, and responses to applied potassium have been large for both sub. clover and grain lupins.
This article indicates where potassium might be needed, and how to diagnose and overcome deficiencies in lupins.
Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown
Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown
Experimental Summaries - Plant Research
Seed yields of early maturing subterranean clovers. A brief description of weather conditions in 1977, site details and results of germination counts and growth ratings were included in the Summary Report for 1977. Drill-sown trials - Seed yields from the trials varied from good in the southern wheatbelt to very poor in the northern areas. Test samples were taken from trials 77GE32, 77GE40 and 77GE41 in the Pindar and Tardun districts, 77ME22 at Koorda and 77TS25 at Perenjori but the quantity of seed did not warrant yield assessment. Trial 77M022 at Gabalong was not sampled. Seed yields from the rest …
General Phosphorus And Sulphur Trials, J. W. Bowden, R J. Lunt, K F. Longbottom
General Phosphorus And Sulphur Trials, J. W. Bowden, R J. Lunt, K F. Longbottom
Experimental Summaries - Plant Research
(A) Long Term Trials/Trial number: Super x Stocking Rate - 66M30. Super Sulphur and Stocking Rate - 68BR7. Maintenance P and S trials - 69E6, 68B1, 65A1, 65N5, 65C5, 69WH15 & 67N05. Continuous Cropping - 75LG26. Cropping Residual Value - 29M/148, 149. (B) Lupin Trials: Rate of P and S - 78A8, 78A9, 78BA9, 78BA10, 78C5, 78C6, 78E8, 78E9, 78WH7, 78WH8 & 78NA25. Current and Residual phosphorus - 75KA4. (C) Cereal Trials: Depth of Placement of P on Wheat - 78M38. Row spacing x P rates on Wheat - 78ME4. Current and Residual Nitrogen on Wheat - 77M033. (D) Pasture …
Clover Scorch, Annual Rye Grass, Legume Seed Inoculation, D. L. Chatel
Clover Scorch, Annual Rye Grass, Legume Seed Inoculation, D. L. Chatel
Experimental Summaries - Plant Research
List of experiments 78D1 - Clover varietal screening for tolerance to clover scorch - Denmark. Annual ryegrass toxicity- glasshouse experiments. Annual ryegrass toxicity- host range. 77TS35 - Second year nodulation of early flowering subterranean clovers - Bunjil. 78ME25A - The response of Nungarin subterranean clover to inoculation - on land previously sown to clover - Koorda. 78ME25B - The response of Nungarin subterranean clover to inoculation - on land new to clover - Koorda (East). 78ME25C - The response of Nungarin subterranean clover to inoculation - on old clover land - Belka. 78TS22 - The response of Nungarin subterranean clover …
Sowing Systems, Effect On Mineralisation Of Soil Nitrogen And Fallow Re-Assessment., D Tennant
Sowing Systems, Effect On Mineralisation Of Soil Nitrogen And Fallow Re-Assessment., D Tennant
Experimental Summaries - Plant Research
Planting systems investigation. Avondale, Esperance, Wongan Hills, Mt. Barker, Merrden research stations.
Fallow re-assessment, 72M29.
Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom
Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom
Experimental Summaries - Plant Research
Yield results, 78AL3, 78KE4, 78M08, 78BY3, 78BA8, 78BU3, 78N04, 78A7, 78C4, 78B4, 78MA2.
Soil sampling data.
Field Crops And Pasture Experiments., P Mcr Wood
Field Crops And Pasture Experiments., P Mcr Wood
Experimental Summaries - Plant Research
Lupinosis.
Badgingarra.
On-farm treatments.
The Dryland Salinity Problem In North America, P R. George
The Dryland Salinity Problem In North America, P R. George
Journal of the Department of Agriculture, Western Australia, Series 4
North america also has a dryland salinity problem although the source is different.
Western Australian Soils Store Large Quantities Of Salt, C V. Malcolm, R. A. Nulsen, C. Henschke
Western Australian Soils Store Large Quantities Of Salt, C V. Malcolm, R. A. Nulsen, C. Henschke
Journal of the Department of Agriculture, Western Australia, Series 4
Enormous quantities of salt are stored in the soil in the agricultural areas of Western Australia. Small movements in this salt can produce large effects on farms.
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Experimental Summaries - Plant Research
Effect of burning on the production of galls, 78KA13.
Effect of the nematicide Nemacur, on the development of toxicity in ryegrass pasture, 78KA15.
Survival of Anguina sp and emergence from galls, 78KA14.
Study of populationsof Anguina sp on plants, 78KA31.
Long Term Rotation Trials, 1978., I Rowland
Long Term Rotation Trials, 1978., I Rowland
Experimental Summaries - Plant Research
66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16.
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Experimental Summaries - Plant Research
Predictive test for take-all. The use of the most probable number technique.
Effect of nitrogen fertalizers on wheat rhizosphere micro-organisms, 78LG3, 78E16.
76LG25, 77LG20, 76E6, 77JE4, 78LG3, 78E16,
Summary Report 1977 Pasture Species Investigations - Wheatbelt, N. R. Mckeown
Summary Report 1977 Pasture Species Investigations - Wheatbelt, N. R. Mckeown
Experimental Summaries - Plant Research
Trials in progress - 68MO23, 70ME2, 71LG17, 71WH13, 76M5. Seasonal conditions. Grazing trials - 68MO23, 70ME2, 71LG17, 71WH13, 75N18, 76M5 - Mini-ley, Merredin. Legume species grazing management trial (West Moora) - 68M023. Comparison of production from Cyprus barrel medic and volunteer pasture (Lake Grace) - 71LG17. Comparison of production from Tornafield medic, serradella and subterranean clover (Wongan Hills Research Station) - 71WH13. Comparison of Geraldton and Northam subterranean clover (Walgoolan) - 70ME2. Early maturing subterranean clover grazing trial (Merredin Research Station) - 75M5. Small plot trials: Early maturing subterranean clovers Subterranean clover trials - southern wheatbelt - 75LG21, 75LG23, 76N16, …
Soil Salinity In Western Australia : A Summary, T C. Stoneman
Soil Salinity In Western Australia : A Summary, T C. Stoneman
Journal of the Department of Agriculture, Western Australia, Series 4
Soil salinity problems have long been recognised in Western Australia. The earliest published explanation in 1924 suggested that removing native vegetation increased stream salinity, and this basic cause has been confirmed by many studies since.
Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978
Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978
Experimental Summaries - Plant Research
Clover cultivar grazing trial, N. bannister.
Perennial versus annual grass grazing trial, Manjimup research station.
Pasture types and stocking rate trial, Denmark agricultural high school. Clover cultivar evaluation trials, 77BU10, 77AL22, 77D5, 77ES27, 77ES28, 77ES29, 78DE1, 78MN5, 78BR16, 78BU15.
Trikkala evaluation trial, Mt Barker research station, see also report of D. J. Gillespie.
Crop Competition Trials, M L. Poole
Crop Competition Trials, M L. Poole
Experimental Summaries - Plant Research
Rates of nitrogen on mixtures of wheat and ryegrass, 78H69.
Rates of Nungarin subclover under a wheat crop with and without applied nitrogen, 78WH70.
Rates of seedling wheat on competition between wheat and ryegrass, 78WH71.
Rates of ryegrass on wheat and. barley yields, 78WH72
Phosphorus Source Trials, M D.A Bolland
Phosphorus Source Trials, M D.A Bolland
Experimental Summaries - Plant Research
HIGH RAINFALL AREAS.
SAND: 76BU1 - New land phosphorus sources trial (pasture) T. O'Bryne, Yallingup. 76BU4 - Old land phosphorus sources trial (pasture) T. Combe, Busselton.
GRAVEL: 76MT10 - New land phosphorus sources trial (pasture) Mt. Barker Research Station. 76MT9 - Old land phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT1 - New land particle size and method of cultivation phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT2 - Old land phosphorus sources cropping trial (oats every third year). Mt. Barker Research Station.
MEDIUM RAINFALL AREAS.
SAND: 77E537 - Young land phosphorus sources trial (pasture) F. Fels, Esperance. …
Effects Of Surface Drainage On Dryland Salinity, P R. George, T. R. Negus
Effects Of Surface Drainage On Dryland Salinity, P R. George, T. R. Negus
Journal of the Department of Agriculture, Western Australia, Series 4
Areas which are salt-affected are often also flooded. Although flooding is not the basic cause of salinity, surface drainage may improve conditions for plant growth, and this article describes suitable methods
Landform, Natural Drainage And Salinity, Eric Bettenay
Landform, Natural Drainage And Salinity, Eric Bettenay
Journal of the Department of Agriculture, Western Australia, Series 4
An understanding of salt movement in streams and groundwater may lead to better methods of control and prevention of salinity.