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Articles 901 - 930 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Trace Element Nutrition. Tissue Testing Programme 1987, R. F. Brennan
Trace Element Nutrition. Tissue Testing Programme 1987, R. F. Brennan
Experimental Summaries - Plant Research
Project title: Evaluation of existing diagnostic procedures for the recommendation of trace element fertilizers.
Aim: To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.
Trial 87N23
Nitrogen rates on the main copper plots of the long term copper residual trial at Newdegate Research Station.
Location: Newdegate Research Station
To determine the effects of rates of nitrogen on the copper status of plants.
Trial 87LG33
Effects of rates of nitrogen on the …
Crop Establishment Methods For Lupin Disease Management, M Sweetingham, V Chisholm, A Pelham
Crop Establishment Methods For Lupin Disease Management, M Sweetingham, V Chisholm, A Pelham
Experimental Summaries - Plant Research
Contents
A. Crop establishment methods for lupin disease management
1. Pleiochaeta root rot
1.1 Depth of sowing
87LG32, 87LG36, 87ME60, 87ME75
1.2 Cultivation and sowing depth
87WH47, 87NO77, 87M54
1.3 Seeding machinery and sowing depth
2. Brown leaf spot/Pleiochaeta root rot
Phosphorus nutrition and crop rotation
87ME62, 87LG39
3. Rhizoctonia hypocotyl rot
Fungicide seed treatment and sowing depth
87BA25
4. Rhizoctonia root rot
4.1 Cultivation and sowing depth
87NO74
4.2 Fungicide seed treatment
87NO78
B. Fungicide drench trials to determine casual organisms of root/hypocotyl rot 87NO75, 87NO76.
Lime Application To Acid. Yellow Eastern Wheatbelt Sandplain Soils, W Porter, S Carr
Lime Application To Acid. Yellow Eastern Wheatbelt Sandplain Soils, W Porter, S Carr
Experimental Summaries - Plant Research
Testing soil acidicity in the wheatbelt.
80M30, 80M31, 86M11, 8814E4, 85M48
Effects Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants Grown On Old Land (Previous Copper, Zinc History Known), R. F. Brennan
Experimental Summaries - Plant Research
To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.
87LG33 Location: L. Slake; Lake Grace
Mogumber Drainage Works Succeed, L K. Lenane
Mogumber Drainage Works Succeed, L K. Lenane
Journal of the Department of Agriculture, Western Australia, Series 4
The loss of arable farmland from soil erosion, waterlogging and salinity is a severe problem on some Western Australian farms.
When the arable land comprises only 40 per cent of the total area within the Mogumber Soil Conservation District, this loss is a real cause for concern. So too is the resulting damage to roads, siltation of railway culverts, and deaths of roadside trees from rising saline watertables.
However, drainage, contour and other works undertaken by the Mogumber Soil Conservation District have halted this degredation. Badly eroded areas that were fenced off now have a satisfactory ground cover. A wheat …
Seepage Interceptor Drains And Topsoil Salinity, T R. Negus
Seepage Interceptor Drains And Topsoil Salinity, T R. Negus
Journal of the Department of Agriculture, Western Australia, Series 4
The Department of Agriculture established 121 trials in its Narrogin advisory district starting in 1972 to measure the effect of bulldozer and grader built seepage interceptor banks and drains on the topsoil salinity of the land downslope of them.
After 14 years of moniterin, there was no evidence that seepage interceptor drains and banks reduced the top soil salinity on 10 of the 11 sites in the Pingelly, Brookton and Wickepin Shires.
Trial 73sg16, I Rowland, W E. Hawkins
Trial 73sg16, I Rowland, W E. Hawkins
Experimental Summaries - Plant Research
Trial 73SG16. Location - Lease block, Salmon Gums
The site was cropped in 1971 and 1972 after two years of volunteer pasture, mainly grasses and some wild legumes (Goldfields medic and wooly clover). In 1973 the trial started with pasture being sown to a mixture of Harbinger, Cyprus and Tornafield medics. The Harbinger quickly became the dominant species
Developing A Soil Test For Wodgil Soils In The Eastern Wheatbelt., S Carr
Developing A Soil Test For Wodgil Soils In The Eastern Wheatbelt., S Carr
Experimental Summaries - Plant Research
Trial 87ME77
Location: Eastern Wheatbelt.
One of the better sites in terms of productivity. This site was sown at two times, initially 4 reps were sown but as it was very dry the remaining 8 reps were sown after additional rain. This split seeding did not seem to adversely affect the trial
Trial 87ME78
Location: Eastern Wheatbelt.
A poor site, towards the middle of the range of the ten sites sown. The very high basal N and P fertilizer applied
Population Dynamics Of Brome Grass In Relation To Control Systems, A H. Cheam, Stephen Lee, C. M. Ralph, P Nelson
Population Dynamics Of Brome Grass In Relation To Control Systems, A H. Cheam, Stephen Lee, C. M. Ralph, P Nelson
Experimental Summaries - Plant Research
Trial 86C1
Location: East Chapman Research Station.
To identify the level of control of brome grass under various crop rotation systems so that farmers can be advised on the degree of infestation likely to be encountered when using a particular system.
To design the best control system to reduce quickly the anticipated large seed population of brome grass in the soil.
Medic Cultivar Resistance To Phoma Blackstem Disease., M. J. Barbetti
Medic Cultivar Resistance To Phoma Blackstem Disease., M. J. Barbetti
Experimental Summaries - Plant Research
Location: Katanning, South Perth, Denmark, Kerridale, Woogenelllup, Mount Barker Research Station, Seaton Park, Esperance, Daliak, Dinninup, Green Range, Yarloop, Jerramungup and Corrigin.
Trial 87KA11
To screen medic lines for resistance to Phoma blackstem disease (caused by the fungus Phoma medicaginis)
Trial 87GL8 : Screening medics for Phoma blackstem resistance.
To develop a reliable glasshouse screening technique for assessing levels of resistance to Phoma blackstem disease in Medicago line.s. To compare these glasshouse obtained results with disease resistance scores for the same Medicago lines sown in the field at Katanning.
Trial 87KA10 : Fungicidal control of Phoma blackstem disease of medics. …
Cereal Cyst Nematode And Time And Method Of Sowing Wheat, J M. Stanton, M Sartori
Cereal Cyst Nematode And Time And Method Of Sowing Wheat, J M. Stanton, M Sartori
Experimental Summaries - Plant Research
87NO13, 87NO15, 87JE6, 87NA93, 87NA93, 87NA97, 86KA82.
Assessment Of 2nd Generation Acid Tolerant Strains Of R. Meliloti, J G. Howieson, S Scarfe, R Forest
Assessment Of 2nd Generation Acid Tolerant Strains Of R. Meliloti, J G. Howieson, S Scarfe, R Forest
Experimental Summaries - Plant Research
86M56, 86GE29, 87M83, 87M13, 87H12, 87M15, 86N32.
Foliar Wheat Diseases And Cereal Smuts And Control Of Pleiochaeta Setosa In Lupins., R Loughman, G Thomas, G Cusack, M Sweetingham, S Porritt, A Pelham, V Chisholm
Foliar Wheat Diseases And Cereal Smuts And Control Of Pleiochaeta Setosa In Lupins., R Loughman, G Thomas, G Cusack, M Sweetingham, S Porritt, A Pelham, V Chisholm
Experimental Summaries - Plant Research
Disease complexes in field screening trials. Glasshouse screening for resistance. Reinfection of barley loose smut. Barley loose smut – varietal susceptibility. Seed dressings for barley loose smut. Seed dressings for barley leaf stripe. Seed dressings for molybdenum application and fungicidal control of soil-borne flag smut. Chemical control of Pleiochaeta setosa in lupins. Effect of cereal stubble and seed dressing fungicide on brown leaf spot (P. setosa) in lupins. Stubble retention and Rovral for control of P. setosa in lupins. Fungicide sprays for control of P. setosa in lupins. Data summary for chemical trials.
Broadacre Pest Control After Ddt, P J. Michael
Broadacre Pest Control After Ddt, P J. Michael
Journal of the Department of Agriculture, Western Australia, Series 4
DDT may no longer be applied to broadacre crops grown in Western Australia. It is being replaced by other more effective chemicals and with new methods of pest control. DDT was the most effective chemical for the control of several major broadacre pests in this State and farmers may well wonder why this change was necessary and how they will manage without DDT.
Productivity Of Grazed Legume Pastures., Pasture Agronomy Branch
Productivity Of Grazed Legume Pastures., Pasture Agronomy Branch
Experimental Summaries - Plant Research
86MT51, 86MT55, Mt Barker research station. Aim, treatment, detail, results.
The Effect Of Sodium Chloride On Boron Toxicity In Barley., M M. Riley
The Effect Of Sodium Chloride On Boron Toxicity In Barley., M M. Riley
Experimental Summaries - Plant Research
To examine the effects of salinity on the uptake of boron and the growth of barley.
87GL3a/4864
Trial 68e5, I Rowland., W E. Hawkins
Trial 68e5, I Rowland., W E. Hawkins
Experimental Summaries - Plant Research
Trial 68E5. Location paddock N1A on Esperance Downs Research Station (Gibson). Long term rotation trials.
Cleared in 1951 and sown to clover, cropped in 1961 and 1962 then Woogenellup sub clover and Brome grass were sown in 1963, topdressed until the start of the trial in 1968. Lupins were sown in trial in 1974. Esperance sub clover has been established on all plots.
Phosphorus Levels And Disease On Lupins, J W. Bowden
Phosphorus Levels And Disease On Lupins, J W. Bowden
Experimental Summaries - Plant Research
Trial 87LG39 (81LG29) 87ME62
Location: Pingaring.
It has been suggested that high levels of phosphorus application to lupins can reduce the impact of leaf and root diseases. Two old rotation trials provided a range of disease burdens, across which phosphate rates on lupins were applied. Disease scores, vegetative yields, phosphorus concentration and seed yields were measured.
(Details in Mark Sweetingham's report)
To Effects Of Rates Of Phosphorus And Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan
To Effects Of Rates Of Phosphorus And 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 and phosphorus inducing copper and zinc deficiency in wheat.
87E30
Winter Waterlogging Effects On Crops And Pasture Production., D. J. Mcfarlane
Winter Waterlogging Effects On Crops And Pasture Production., D. J. Mcfarlane
Experimental Summaries - Plant Research
Trial 87NA76
Location: Dryandra, Rosendale Central, Tutanning, Yornaning South, Yornaning West
To quantify the physical extent and economic significance of winter waterlogging on crop and pasture production in the Upper Great Southern Region of Western Australia.
Nitrogen Rates On The Main Copper Plots Of The Long Term Copper Residual Trial At Newdegate Research Station, R F. Brennan
Nitrogen Rates On The Main Copper Plots Of The Long Term Copper Residual Trial At Newdegate Research Station, R F. Brennan
Experimental Summaries - Plant Research
Trial 87N23
Location: Newdegate Research Station.
To determine the effects of rates of nitrogen on the copper status of plants.
Trial 86c63 Rotation, Deep Ripping And Water Use And Trial 87ge97 Cereal Management Trials, J. Hamblin, R. Delane, Glenn Adam
Trial 86c63 Rotation, Deep Ripping And Water Use And Trial 87ge97 Cereal Management Trials, J. Hamblin, R. Delane, Glenn Adam
Experimental Summaries - Plant Research
To examine the value of a package approach to growing cereals in the northern agricultural region. Treatments included planting date , species (wheat v barley) and variety (differing in maturity), as well as deep ripping and fungicide spray.
87GE97
To examine the effect of different rotational histories, particularly residual water, on following crops. Barley, wheat, lupins, medic.
86C63
Nitrogenous Fertilizers For Cereals Results From 1987 Trials, M G. Mason
Nitrogenous Fertilizers For Cereals Results From 1987 Trials, M G. Mason
Experimental Summaries - Plant Research
Effect of stubble treatment on nitrogen fertilizer requirement. 78C3
Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78WH3
Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78M2
Nitrogen Rate on Continuous Wheat with Varying Levels of Retained Stubble *84WH46
Rates of Nitrogen on Continuous Wheat on Heavier Land 87C1
Rates of Nitrogen on Wheat on Heavy Land *87M04
Nitrification of Sources of Nitrogen on Slightly Acid to Neutral Soil 87BA3
Nitrification of Sources of Nitrogen on Medium Soil 87A1
Nitrification of Sources of Nitrogen on Very Acid Soils 87M3
Nitrification of Sources of Nitrogen on Moderately Acid Soil 87WH1
Rate …
Residual Value Of Molybdenum On An Acid Soil, M M. Riley
Residual Value Of Molybdenum On An Acid Soil, M M. Riley
Experimental Summaries - Plant Research
To examine the decline in effectiveness of molybdenum applied to the soil for the growth of wheat at this site. 82N07/1213
Evaluation Of Existing Diagnostic Procedures For The Recommendation Of Trace Element Fertilisers, R F. Brennan
Evaluation Of Existing Diagnostic Procedures For The Recommendation Of Trace Element Fertilisers, R F. Brennan
Experimental Summaries - Plant Research
Trial 87N23
Location: Newdegate Research Station.
To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.
N X P X Irrigation On Wheat - South Carabin, J W. Bowden
N X P X Irrigation On Wheat - South Carabin, J W. Bowden
Experimental Summaries - Plant Research
Trial 87M7.
Nx P x irrigation on wheat
Although no major effects of fertilizer on average seed size were noted, it was found that phosphate level had an effect on the distribution of seed sizes.
Location: South Carrabin.
Trial 87WH51
1987 rainfall.
Location: Wongan Hills Research Station.
Residual Value Of Copper, Zinc And Sulphur With High Analysis Nitrogen And Phosphorus Fertilizer Under Continuous Cropping Situation, R F. Brennan
Experimental Summaries - Plant Research
Trial 86LG34
Location: South Newdegate
To determine the decline in effectiveness of copper, zinc and sulphur on this soil types using DAP.
The Effect Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants, R F. Brennan
The Effect Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants, R F. Brennan
Experimental Summaries - Plant Research
To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.
87JE21
Harvested And Grazed Lupin Stubbles On Following Wheat South Carrabin., J W. Bowden
Harvested And Grazed Lupin Stubbles On Following Wheat South Carrabin., J W. Bowden
Experimental Summaries - Plant Research
Location: South Carrabin lease block
Harvested and grazed lupin stubbles on following wheat. Trial 86M8
This trial is difficult to analyze statistically because of the treatment changes induced by sheep breaking in to some of the plots. Further, lupin grain yields were not very high and so differences between harvested and unharvested treatments are not large. Also the grazing intensity was not very severe (except on the unintentionally grazed plots) and so the effect of grazing is also relatively small.
Trial 87M7
Nitrogen phosphorus and irrigation of wheat.
Location: South Carrabin.
This trial was designed to give a nitrogen/phosphorus response …
Trial 67n4, I Rowland, W Hawkins
Trial 67n4, I Rowland, W Hawkins
Experimental Summaries - Plant Research
Trial 67N4. Location Newdegate Research Station. Long term rotation trials.
An old land site, cleared in 1951 and in pasture (Dwalganup sub clover) from 1963 to 1967. All plots were sown to Nungarin sub clover, by 1982 all plots had been resown.