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Articles 841 - 870 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Management Of Native Vegetation On Farmland In The Wheatbelt Of Western Australia, A M. Coates
Management Of Native Vegetation On Farmland In The Wheatbelt Of Western Australia, A M. Coates
Resource management technical reports
Clearing in the wheatbelt region of Western Australia has been rapid and extensive. The mapping of remnant vegetation in the shires of Dumbleyung, Lake Grace, Pingelly and Tammin with the use of the most recent aerial photography (1984) demonstrates the extent of clearing especially in the old established farming areas. Only 7 per cent of the Tammin shire had been retained under native vegetation, 10 per cent of the Dumbleyung shire and 14 per cent of the Pingelly shire. In the Lake Grace shire where large areas have only recently been developed for agriculture, approximately 31 per cent had been …
An Assessment Of Land Capability For Residential Land Uses : Babbage Island, Carnarvon, Western Australia, M R. Wells, Veronica P M Oma
An Assessment Of Land Capability For Residential Land Uses : Babbage Island, Carnarvon, Western Australia, M R. Wells, Veronica P M Oma
Resource management technical reports
No abstract provided.
Preliminary Groundwater And Salinity Investigations In The Eastern Wheatbelt. 3. Welbungin And Beacon River Catchments, Richard J. George Dr, P W C Frantom
Preliminary Groundwater And Salinity Investigations In The Eastern Wheatbelt. 3. Welbungin And Beacon River Catchments, Richard J. George Dr, P W C Frantom
Resource management technical reports
Water-tables show no obvious signs of a nett annual rise in the bores monitored in the valley floor, lower slope areas over the three year period. Groundwaters are extremely saline, the sedimentary and saprolite aquifers permeable (hydraulic conductivity range 0.1-2.0 m/day) (0.0001). Future management systems should seek to decrease recharge by changing rotations and farm practises while increasing discharge by using trees, pumps and halophytes. Options are available for drainage.
The Soils Of Falls Farm Catchment Cuballing Western Australia R.A. Sudmeyer., Robert Anthony Sudmeyer
The Soils Of Falls Farm Catchment Cuballing Western Australia R.A. Sudmeyer., Robert Anthony Sudmeyer
Resource management technical reports
No abstract provided.
The Soils Of South Carrabin Research Station -Light Land Annex, Henry Smolinski, G G. Scholz
The Soils Of South Carrabin Research Station -Light Land Annex, Henry Smolinski, G G. Scholz
Resource management technical reports
No abstract provided.
Rhizoctonia Bare Patch Of Cereals And Lupins, G C. Macnish, M W. Sweetingham
Rhizoctonia Bare Patch Of Cereals And Lupins, G C. Macnish, M W. Sweetingham
Experimental Summaries - Plant Research
To determine the stimuli for the formation of rhizoctonia patches in cereals and lupins.
Intraspecific Variation In Barley To Boron Toxicity, M M. Riley
Intraspecific Variation In Barley To Boron Toxicity, M M. Riley
Experimental Summaries - Plant Research
To investigate the intraspecific variation in tolerance to boron toxicity in a range of barley varieties. 87SG1, 4/4864 and 87SG4.
Effect Of Plant Density On Boron Toxicity In Barley, M M. Riley
Effect Of Plant Density On Boron Toxicity In Barley, M M. Riley
Experimental Summaries - Plant Research
To examine the effect of seeding density on the degree of boron toxicity in barley.
87SG7/4864, 87SG6
Trial 65sg5, I Rowland., W Hawkins
Trial 65sg5, I Rowland., W Hawkins
Experimental Summaries - Plant Research
Trial 65SG5. Location - Paddock H5 on Salmon Gum Research Station
Cleared in 1962, then cropped until the start of the trial in 1968. Two of the four blocks were sown to Cyprus Barrel medic which is topdressed with superphosphate. The other two blocks regenerate volunteer pasture which is not topdressed. In 1984 all pasture plots were sown to SERENA medic. This grew exceptionally well in 1984 and set a lot of seed. In 1987 field peas were introduced into 4 reps of an existing medic: crop rotation.
Rates, Times And Sources Of Nitrogen On Wheat, J W. Bowden
Rates, Times And Sources Of Nitrogen On Wheat, J W. Bowden
Experimental Summaries - Plant Research
Trial 87WH51
Location: Wongan Hills Research Station.
This trial was put onto a site adjacent to Mel Mason's source of nitrogen trial and the CSIRO, 15 N plots to provide some explanation of the results from the limited treatments in those trials. They were designed to monitor soil/fertiliser nitrogen transformations with time. Unfortunately the site of this trial was variable. The end most similar to the other trials was deeper and sandier and stored less water than the other and where crop growth was far better.
87WH51
Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley
Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley
Experimental Summaries - Plant Research
The trial was effectively a tolerance trial. Best overall weed control was achieved with Glean and the higher rates of Isoproturon which in turn gave best control as a pre-plant, incorporated treatment.
87A23, 87WH54
Post Emergence Weed Control In Lupins., R. Madin, J. Buckley
Post Emergence Weed Control In Lupins., R. Madin, J. Buckley
Experimental Summaries - Plant Research
As a general assessment in can be said that Tigrex is a safe and efficient herbicide for control of radish in wheat. Brodal alone was generally unsatisfactory for radish control. While Diuron + Brodal was safe and efficient, Ally and Brodal should not be used together. Diuron + MCPA gave poorer control than one would normally expect.
87WH67
Control Of Peas And Lupins In Wheat, J. R. Peirce, B. J. Rayner
Control Of Peas And Lupins In Wheat, J. R. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
Trial 87A29
Lupins were easier to kill than peas.
Glean applied pre-sowing gave very poor control of both peas and lupins.
The treatment using higher rates of 2,4-D amine in diuron mix also caused lower yields.
The Tordon 242 treatment appeared to cause some yield depression.
Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm
Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm
Experimental Summaries - Plant Research
Trial 87LG65
Glean post-em @ 10 and 15 g/ha gave good control.
A later trial gave good control with Garlon 4800 or 2,4-D amine when sheep grazed the weed after treatment. Considerable pasture damage would be done with all chemicals during the growing season.
Control Of Cereal Crop Diseases By Manipulation Of Pasture Composition., W Macleod
Control Of Cereal Crop Diseases By Manipulation Of Pasture Composition., W Macleod
Experimental Summaries - Plant Research
Rotation for wheat comparing pure clover ley with a pasture ley, 79E15.
Pasture renovation techniques and crop production in a 1:2 rotation, 81E35.
Pasture manipulation – effects on take all, 85E32.
Timing of spray topping and herbicides, 86MT64, 86E55.
Effect of herbicide application on take all inoculum, 87MD12.
The effects of pre and post sowing herbicides on wheat root diseases.
Herbicide disease interaction in recommended varieties, 87E29, 87MT51.
Pasture Variety Row Evaluation., Western Australia Department Of Agriculture
Pasture Variety Row Evaluation., Western Australia Department Of Agriculture
Experimental Summaries - Plant Research
Pasture variety row evaluation, 87GE78.
Intraspecific Variation In Wheat To Boron Toxicity, M M. Riley
Intraspecific Variation In Wheat To Boron Toxicity, M M. Riley
Experimental Summaries - Plant Research
To investigate the intraspecific variation in tolerance to boron toxicity in a range of wheat varities. 87SG2, 5/4864, 87SG1, 87SG5
Molydenum Seed Dressings On Wheat, M M. Riley
Molydenum Seed Dressings On Wheat, M M. Riley
Experimental Summaries - Plant Research
To compare the relative effectiveness of molybdenum as a seed-dressing to the conventional method of soil application. To examine the uniformity of distribution of different forms of molybdenum dressed onto the seed of wheat by different methods. 87M6
Residual Values Of Different Molybdenum Sources, M M. Riley
Residual Values Of Different Molybdenum Sources, M M. Riley
Experimental Summaries - Plant Research
To examine the declines in effectiveness of different sources of molybdenum. 84Me10
Effect Of Molybdenum On Medic Growth And Nitrogen Fixation, M M. Riley
Effect Of Molybdenum On Medic Growth And Nitrogen Fixation, M M. Riley
Experimental Summaries - Plant Research
1.To examine the responses of medics to the application of molybdenum on an acidic, yellow-brown earth.
2.To compare the relative effectiveness of molybdenum seed-dressed to the conventional method of soil application.
3.To examine the effect of seed-dressing molybdenum on rhizobial nodulation.
87M68
Molybdenum On Lupins, M M. Riley
Molybdenum On Lupins, M M. Riley
Experimental Summaries - Plant Research
1.To examine the responses of lupins to the application of molybdenum to an acidic, yellow sandy earth.
2. To compare the relative effectiveness of molybdenum as a seed-dressing to the conventional method of soil application.
3. To examine the effects of sodium molybdate as a seed-dressing on the effectiveness of rhizobium. 87Me94
Individual Trial Data - Depth Of Lime Incorporation, P J. Dolling
Individual Trial Data - Depth Of Lime Incorporation, P J. Dolling
Experimental Summaries - Plant Research
Trial number 86NA42 Location Wagin
Trial number 86KA60 Location Katanning
Seed Rate And Nitrogen On Wheat, J W. Bowden
Seed Rate And Nitrogen On Wheat, J W. Bowden
Experimental Summaries - Plant Research
Trial 87MO49
Location: Wannamal
To examine the economic choice of nitrogen and seeding rates in a leaching situation with a high yield potential.
To test the nitrogen section of NP-Decide.
To gather data that enables competition for resources to be examined by regarding the crop as a population of individual plants.
Eastern Wheatbelt Nutrition Studies, W Porter, S Carr
Eastern Wheatbelt Nutrition Studies, W Porter, S Carr
Experimental Summaries - Plant Research
To determine the effectiveness of foliar applied phosphate relative to soil applied phosphorus.
To compare the effectiveness of the number of times of application of foliar phosphorus.
87M81, 87ME106
General Comments And Comparative Yields, W Porter, S Carr
General Comments And Comparative Yields, W Porter, S Carr
Experimental Summaries - Plant Research
General comments and comparative yields on all trials.
87ME77, 87ME78, 87ME79, 87ME80 and 87ME81, 87ME82, 87ME83, 87ME84, 87ME85, 8714E88
Effects Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants Grown On Old Land, R F. Brennan
Effects Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants Grown On Old Land, R F. Brennan
Experimental Summaries - Plant Research
Trial 87JE21
Location: West River
To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.
Effect Of Nitrogen Rates On The Copper Concentration, Dry Matter Production And Grain Yield Of Wheat Grown On A Residual Copper Trial., R F. Brennan
Experimental Summaries - Plant Research
Trial 67E8
Location: Esperance Downs Research Station.
The trial was originally designed to measure the residual effectiveness of rates of copper sulphate drilled in 1967.
The Effects Of Rates Of Nitrogen On The Zinc Status And Of Wheat Plants Grown In Newland, R F. Brennan
The Effects Of Rates Of Nitrogen On The Zinc Status And Of Wheat Plants Grown In Newland, R F. Brennan
Experimental Summaries - Plant Research
To measure the effects of DAP and high nitrogen rates on the severity of zinc deficiency of wheat grown on this newland site.
87JE34
Deep Placement Of Manganese For Lupins, R F. Brennan
Deep Placement Of Manganese For Lupins, R F. Brennan
Experimental Summaries - Plant Research
Trial 87E44
Location: Esperance Downs Research Station
To determine the effect of deep placement of manganese and foliar applied manganese on lupin plant tissue levels, split seed incidence and grain yield.
.
Manipulation Of The Soil Seed Reserves Of Bromus Diandrus And B. Rigidus By Enhancing The Breakdown In Seed Dormancy., A H. Cheam
Experimental Summaries - Plant Research
Location: South Perth Field Plots
Previous studies on the seed bank of Bromus diandrus indicated that shallow burial of newly shed seeds enhanced the breakdown in seed dormancy over the summer period. To bury the Bromus seeds one practical approach is to introduce sheep into the paddock.
This study is a repeat of the previous work but included B. rigidus, another species of Bromus, that is commonly ground growing in association with B. diandrus.
Location: South Perth Field Plots.