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Articles 31 - 59 of 59
Full-Text Articles in Inorganic Chemistry
Getting The Best Out Of Our Wheats., Brenda Shackley, L. Lambert
Getting The Best Out Of Our Wheats., Brenda Shackley, L. Lambert
Experimental Summaries - Plant Research
Trials: 90KA82 (TOS1), 90KA83 (TOS 2), 90KA84 (TOS 3)
90LG4 (TOS 1), 90LG45 (TOS 2), 90LG46 (TOS 3)
90LG47 (TOS 1), 90LG48 (TOS 2), 90LG49 (TOS 3)
90N42 (TOS 1), 90N43 (TOS 2), 90N44 (TOS 3)
Variety * time of sowing (TOS)
Locations: Wagin, Tarin Rock, Newdegate Research Station and Lake Varley.
Determine the optimum sowing date for maximum yield for a range of released and unreleased wheat cultivars.
Trials: 90KA79, 90LG50, 90LG51, 90N62
Nitrogen application.
Locations: Wagin, Tarin Rock, Newdegate Station and Lake Varley.
Determine the response of released and unreleased wheat cultivars to the application of nitrogen.
Trials: …
Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards
Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards
Experimental Summaries - Plant Research
Aim: Develop recommendations for optimal potassium fertilizer application strategies for lupin production. Further develop soil and tissue test calibrations for lupin grain production.
Trial 89EC32
Potassium nutrition of lupins on sandplain soils.
Location: East Chapman Research Station.
Fertilizer: At sowing: 50 kg/ha DAP, 50 kg/ha Urea topdressed. 100 kg/ha Urea topdressed 10/7.
Trial 89GE90
Potassium nutrition of lupins on sandplain soils.
Location: Allanooka
Fertilizer: At sowing: 120 kg/ha Agras No. 1. 100 kg/ha Urea topdressed 10/7.
Trial 89MO51
Potassium nutrition of lupins on sandplain soils.
Location: Lancelin.
Fertilizer: At sowing: 110 kg/ha Agras No. 1. 60 kg/ha Urea topdressed 10/7. …
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89NA61
Location: Duranillin
In this site we would expect a very large response (40 to 50% ) to phosphorus.
History:
The site was chosen because of the patchy and poor pasture production. The poor areas tend to have more suckling clover than the good areas. The pasture was legume dominant.
Treatments were applied on April 16, 1989.
Pasture Agronomy., C. K. Revell
Pasture Agronomy., C. K. Revell
Experimental Summaries - Plant Research
Trial 89ME82
a. Medic establishment.
Establishing burr medic pastures with cereal cover.
Merredin
Trial 89SC19
b. Serradella - Potash response.
Response of serradella to potash fertilizer.
South Carrabin
Trial 89M44
c. Serradella/Grass competition
Effect of grass competition on production of serradella.
Merredin Research Station.
Trial 89SC HERB
d. Herbicide tolerance of Serradella.
Herbicide tolerance of Madeira serradella.
South Carrabin
Tactical Nitrogen Decisions For Wheat (And N Rates Trials), J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat (And N Rates Trials), J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89NO77 (89NO76)
Location: Grass Valley.
History: 1984 Lupins.
1985/86 pasture legumes and about 100 kg super/ha.
1987 Wheat yield of 2.8 t/ha using 45 kg DAP/ha and 60 of urea 2-4 WAS.
1988 Gungurru lupins (27 kg/ha seed) yielding 1.9 t/ha using 80 kg super/ha.
Tactical nitrogen trials - summary of treatments required.
Trial 89NO77
Location: Meckering
Treatments existed of nitrogen and urea. Nitrogen was not applied at seeding. Urea was applied at seeding.
Trial 88No77
Tactical nitrogen trials. - summary of observations.
Location: Grass Valley.
Trial 89NO76
Hand harvest 23/11/1989.
Yield components for copper sufficient plots reps. I …
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Experimental Summaries - Plant Research
Trial 78BA1
Nitrogen fertiliser requirement in alternate crop - pasture rotation.
Location: Badgingarra Research Station.
Trial 88B4
Effect of amount and quality of organic matter residues on response to N.
Location: Badgingarra Research Station.
Trial 86WH36, 86M44
Lupin/wheat rotation.
Location: Wongan Hills Research Station, Carrabin Research Station.
Trail 87N084, 86M39, 86ME64, 87N25, 87KA49
Pea/wheat rotation.
Location: Konnongorring, Merredin Research Station, Narembeen, Newdegate Research Station, Nyabing,
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Experimental Summaries - Plant Research
Trial 89ME50, 89ME51, 89ME53, 88ME55, 89ME56
Location: Mutadgin, Doodlakine, Noongar, Mt Hampton, Nungarin
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Trial 89ME52, 89ME54
Location: Noongar, Mt. Hampton.
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Measure the response of burr medic pasture to applied potash.
Trial 89ME59
Location: Beacon
Compare the response of yellow serradella to topdressed P with the response of wheat to drilled P.
Trial 89ME60, 89ME61
Location: Muntadgin
Compare the response of yellow serradella to topdressed P with …
Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial: 89BA29
Location: Badgingarra Research Station, Paddock 4A2, old block.
Lupin cv. Gungurru sieved to uniform size and sown without inoculation. No basal fertilizers were applied as the soil had previously been treated with high rates of superphosphate, micro-nutrients and potassium. Muriate of potash topdressed on 18/8/89 at 100 kg/ha.
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Experimental Summaries - Plant Research
Soil acidity and the availability of nitrogen to cereals.
To determine the extra nitrogen available due to better pasture legume growth after liming.
To determine the extra nitrogen released from soil organic matter after liming.
Trial 89NO81
Location: South Cunderdin.
Trial 89NO82
Location: Cunderdin
Trial 89NO83
Location: Konnongorring.
Trial 89NO84
Location: Jennacubbine.
Trial 88AL35
Location: Woogenellup.
Trial 88TS54
Location: Three Springs.
Trial 88NO76
Location: Goomalling.
Trial 88NO77
Location: Ejanding.
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Experimental Summaries - Plant Research
Evaluation of existing diagnostic procedures for the recommendation of trace element fertilizers.
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 66N14
Long term copper residual trial at the Newdegate Research Station.
To determine the residual value of previously applied copper.
Location: Newdegate Research Station.
Trial 86N27
Residual value of zinc with high analysis nitrogen and phosphorus fertilizer.
To determine the decline in effectiveness of zinc on this soil types …
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89MO49
Location: Tenderloin, Brand Highway, Regan's Ford.
History:
1987 Aroona wheat with 70 kg DAP and 3 kg CuSO4 at seeding followed by 60 urea at 3WAS and another 40 urea at 6WAS. Yield was about 1.7 to 1.8 t/ha;
1988 Gungurru lupins with 120 kg super and manganese/ha yielded 1.9 t/ha. 350-400 ml Roundup/ha and one cultivation prior to seeding.
Interaction Of Season With Wheat Response To Nitrogen Fertilizer., J. W. Bowden, R. J. Lunt
Interaction Of Season With Wheat Response To Nitrogen Fertilizer., J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89M3
Interaction of season with wheat response to nitrogen fertilizer.
Location: Merredin Research Station.
History: 1988 pasture.
Sown on 30/5/89. Gutha Wheat at 50 kg/ha Madiera Serradella at 15 kg/ha. Basal superphosphate at 200 kg/ha plus Molybdenum drilled with the seed and 100 kg/ha Muriate of Potash topdressed. At seeding (A.S) nitrogen treatments topdressed by hand on 1/6/89 and 4 weeks after (4WAS) treatments applied on 29/6/89. Supplementary water applied.
Trial 89NA61
Pasture deterioration trial.
Location: West Dale
History: Long term pasture dominated by non-productive 'suffocating clover'.
Trial 88NA88
Effect of clover growth on nitrogen for following cereals.
Location: …
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 88MO41, 88WH40 (2CE), 88WH40 (4W), 89NO77, 89MO47, 89MO47, 89MO49, 89BA33 (1), 89BA33 (2), 89WH70 (1), 89WH70 (2)
Locations: Wannamal, WHRS, Grass Valley, Regan's Ford, Badg. New Block 3CE
In order to test tactical and other fertilizer decision making methods (Table 1), we carried out three trials in 1988 and a further seven trials in 1989 (Table 2).
To date this programme has provided a lot of information which can be used to test and validate current (and future) methods of predicting yield potential and nitrogen status of a crop as the season progresses. However, our inability to predict end …
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial: 89SC20
Location: South Carrabin Research Station, Hayden paddock.
The effects of superphosphate and fertilizer on seeds planted over a 21 week period.
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89SC23
Location: South Carrabin
Effect of soil P, seed P and seed rate on plant counts at 5 weeks.
Shoot dry matter (DM) at tillering and heading and seed DM at maturity were strongly depressed by low soil P levels.
Effect Of Seed Phosphorus, Seed Size And Seedling Density On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus, Seed Size And Seedling Density On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89SC22
Location: South Carrabin Research Station, Hayden paddock.
Effect of seed phosphorus concentration, fertilizer P level, seed size and seeding rate on plant counts at 6 to 21 weeks.
Effect Of Seed Phosphorus Levels In Three Wheat Varieties And Fertilizer P Supply On Their Growth And Grain Yields., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus Levels In Three Wheat Varieties And Fertilizer P Supply On Their Growth And Grain Yields., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89WH74
Location: Wongan Hills Research Station, Field 4W
Effect of phosphorus and fertilizer on the growth and grain of wheat yields.
Nitrogenous Fertilizers For Cereals., M. G. Mason
Nitrogenous Fertilizers For Cereals., M. G. Mason
Experimental Summaries - Plant Research
Trial 87CI
Rates of nitrogen on continuous wheat on heavier land.
Location: North Mullewa Research Station.
Trial 80WH3, 80MI, 80N3.
Effects of Agras No. 1 on soil pH and wheat yield.
Location: Wongan Hills Research Station, Merredin Research Station, Newdegate Research Station.
Trial 78WH3
Effect of stubble treatment on nitrogen fertilizer requirement.
Location: Wongan Hills Research Station.
Trial 89WH18
Effect of banding sources of nitrogen on grain yield.
Location: Wongan Hills Research Station.
Trial 89M2 (a)
Nitrification of sources of nitrogen on heavy soil.
Location: Merredin Research Station.
Trial 89M2 (b)
Nitrification of sources of nitrogen on heavy soil.
Location: …
New Block Badgingarra Rs Late Time Of Seeding., J. W. Bowden, R. J. Lunt
New Block Badgingarra Rs Late Time Of Seeding., J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89BA33,
Location: Badgingarra
Based on a 1.5 t/ha potential yield, the strategic treatment was planned to be 120 kg urea/ha 4WAS. However, the crop was poorly established and so NH4NO3 was used in the hope of getting better tillering than would be possible with the slower release urea source. Gambling on equal dollars to urea for 2/3 N, but believe that twice as effective.
DAP was used to place nitrogen with the seed in case there was no rain of significance after seeding. This nitrogen (only 5 kg/ha) was probably lost with the rains of 20-28/7/89 (50 mm). Urea …
Effects Of Seed Phosphorus Concentrations And The Source Of The Seed On Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effects Of Seed Phosphorus Concentrations And The Source Of The Seed On Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89EC31
Location: East Chapman Research Station.
The effect of seed phosphorus concentration, source of seed and fertilizer P level on plant counts from six to 20 weeks.
Soil Acidity And Eastern Wheatbelt Plant Nutrition., W. Porter., C. L. Kipling
Soil Acidity And Eastern Wheatbelt Plant Nutrition., W. Porter., C. L. Kipling
Experimental Summaries - Plant Research
1. Affects of soil acidity on subterranean clover growth in the cropping areas of Western Australia.
Trial 87AL35, 87NO2, 87No3, 88NO76, 88NO77, 88TS54
To investigate the responsiveness to lime of subterranean clover based pastures on acid soil and the cropping areas of Western Australia.
To determine the reasons for responses to line in the field, particularly the possible involvement of legume nodulation effects and the alleviation of soil/water repellence.
To develop practical identification and management strategies for acid soils problems.
Trial 87AL35.
Liming in crop/pasture rotation on acid soils
Location: Woogenellup.
History: 1987 Lime applied, sown to barley
1988 Clover …
Dryland Pasture Legume Programme, C. K. Revell, G. Croker, J. Simmons, L. Heinrich
Dryland Pasture Legume Programme, C. K. Revell, G. Croker, J. Simmons, L. Heinrich
Experimental Summaries - Plant Research
1. Medic variety evaluation
a. Row Evaluation - 88ME122 - Merredin.
This method of assessment was used to test a range of new medic material originating from the South Australian Department of Agriculture.
b. Evaluation of burr medics on Morrel soils. - 88ME84 - Nokaning.
c. Evaluation of burr medics on Whitegum soils. 88ME85 - North Kellerberrin.
d. Evaluation of Santiago in low rainfall areas - 88ME86 - Mukinbudin.
e. Selection of early maturing M. murex. 88SC30 - Merredin.
f. Medic species evaluation - large plots. 88NO88 - Tammin.
g. Medic species evaluation - large plots. 85M43 - Merredin Research …
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.
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.
.
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 …
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.
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)
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 …
Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation
Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation
Publications (WR)
The survey results indicate that the impoundment of water behind Hoover Dam has not adversely affected the dissolved oxygen (DO) content and that water quality and DO content were uniform regardless of depth. The study made in April-May 1964 will provide water quality data of Lake Mead prior to releases from Lake Powell as a basis for evaluating Lake Powell's effect on water quality and limnology of Lake Mead. The performance of a DO analyzer was tested and found unsatisfactory at depths below 150 ft. Parameters tested by standard chemical analyses of water samples in the Denver Laboratory and by …