Chemistry Commons^™

Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90E13

Starter nitrogen for lupins, rates x depth of placement.

To determine if the application of nitrogen at seeding will enable lupins to grow vigorously at the beginning of the season, and have better growth at flowering. Deep placement is used to reduce the effects of high nitrogen fertiliser on plant establishment.

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. …

Mounting Sex Pheromone: A Novel Pheromone Responsible For Mate Recognition In The Ixodidae, Jgc Hamilton

Theses and Dissertations in Biomedical Sciences

Cholesterol oleate was demonstrated to be the cuticular contact sex pheromone of Dermacentor variabilis. This pheromone which has been termed the Mounting Sex Pheromone (MSP) was also demonstrated to be present on the surface of D. andersoni, Amblyomma maculatum and A. americanum. This contact sex pheromone enables males excited and attracted by 2,6-dichlorophenol to identify the female as a potential mating partner. The MSP is the second in the series of three sex pheromones guiding the hierarchy of behavioral responses which constitute tick courtship behavior. Tests with D. variabilis and D. andersoni showed that this pheromone …

Simultaneous Determination Of 3-Methoxy-4-Hydroxyphenyl-Glycol, Homovanillic Acid, And 5-Hydroxyindoleacetic Acid In Plasma By High Performance Liquid Chromatography, Yung-Te Tseng

Chemistry & Biochemistry Theses & Dissertations

A rapid, reliable, and sensitive method for simultaneous determination of 3-methoxy-4-hydroxyphenylglycol (MHPG), Homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5- HIAA) in plasma is described. The method is based on high performance liquid chromatography with electrochemical detection. Samples were filtered with Amicon Centrifree micropartition systems and extracted with organic solvent before chromatography. Chromatographic separation of sample components was achieved isocratically in a C18 reverse-phase column. Quantitation was performed by measuring the peak height ratios of the sample components to an internal standard. Analytical recoveries ranged from 50.78 (SD 4.2%) to 67.94 (SD 3.28). Within-run coefficient of variations (CVs) ranged from 3.78 …

A Study Of Denitrosation Of N-Nitroso Compounds By Irradiation With Long-Wavelength Uv Light, Zhenyu J. Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

N-Nitrosamines and N-nitrosamides have been reported to be mutagenic. N-Nitrosamides are direct mutagens that need no activation to be mutagenic, whereas N-nitrosamines need to be enzymatically activated to exert their mutagenicity. Oxidative demethylation of nitrosamines is a commonly accepted activation mechanism. Another pathway of nitroso compounds, denitrosation, has recently been proposed. The mechanism of denitrosation, however, is still unknown.

The purpose of this study was to use a photo -reaction model to explore the possible denitrosation mechanism of N-nitroso compounds. An N-nitrosamine, N-nitrosomorpholi ne (NMOR), and an N-nitrosamide, N-methyl-N'-nitrosoguanidine (MMNG), were irradiated with long-wavelength UV light in the presence of …

Soil-Plant-Sheep Organochlorine Pesticide Research, Tony Albertsen

Experimental Summaries - Plant Research

1. Soil O/C decay (5812)

Locations: Brookhampton, Carbunup, Dardanup, Denmark, Donnybrook, Goodwood, Jindong, Kirrup, Manjimup, Pemberton, Redmond.

To determine the rate of decay of soil Dieldrin.

2. Soil profile distribution of O/Cs (5812) (88AL21/1)

To determine the distribution of O/cs at 1 cm intervals down the soil profile.

3. Soil decontamination of O/Cs (5812)

To assess practical and economic techniques for decontaminating soil Dieldrin residues.

4. The accumulation and rundown of Dieldrin in wethers. (5841)

To determine the relationship between the levels of Dieldrin contamination in soil, pasture, sheep body and wool fat.

5. Surface drainage trial 86V1/5164

Efficient surface …

Rotational Experiments., C. K. Revell

Experimental Summaries - Plant Research

Trial 82M47

a. Subterranean clover.

Subterranean clover rotation trial
Merredin Research Station.

Trial 88ME83

b. Santiago burr medic

Rotational systems for burr medic
Merredin.

Trial 89N29

Rotational systems for burr medic.
Newdegate Research Station.

Identification Of A Variant Form Of The Human Estrogen Receptor With An Amino Acid Replacement, T. Garcia, M. Sanchez, J. L. Cox, P. A. Shaw, J. B. A. Ross, S. Lehrer, B. Schachter

Chemistry and Biochemistry Faculty Publications

Estrogen receptor (ER) is a ligand-dependent transcriptional regulator. ER protein has several functionally distinct regions, including a DNA-binding domain in its midportion, a ligand binding domain in the carboxy terminal region, and at least one domain, in the amino terminal region, that influences the magnitude of transcriptional enhancement (1,2). We now report the sequence of a frequently occurring ER genetic variant that carries two point mutations in the region of the gene encoding the amino terminal domain of the protein.

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: …

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 …

Pasture Species Investigations., D. A. Nicholas

Experimental Summaries - Plant Research

Trial 87V7, 87MT52, 87MA31

Selection of subclover cultivars - mid to late maturing.

To select in the field subterranean clover cultivars of mid to late maturity having superior persistence and productivity.

Location: Vasse Research Station, Mount Barker Research Station, Wilgarup.

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 …

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 …

The Nitrogen Response Of Wheat Crops Following Lupins, I C. Rowland, Mel Mason, John Hamblin

Journal of the Department of Agriculture, Western Australia, Series 4

One of the many benefitsof growing narrow-leaved lupins in a crop rotation (Rowland et al 1988) in the increased yield of the following cereal crop as a result of the improved nitrogen level of the soil.

This article reports the results from 41 wheat/lupin rotation trials involving a range of nitrogen rates throughout the Western Australian agricultural area between 1978 and 1987. These trials allowed scientists to assess the interaction of nitrogen fertilization with previous cropping history and to estimate some of the contribution of the nitrogen and other effects of lupins within the crop rotations. The results provide some …

Choosing A Calcium Supplement For Sheep Fed Cereal Grains, R L. Peet, Michael Hare

Journal of the Department of Agriculture, Western Australia, Series 4

Sheep fed cereal grains as an energy source over summer usually need added calcium because cereal grains are generally low in calcium (for example, 0.03 per cent calcium compared to 0.26 per cent phosphorus), and there may not be a natural source such as clover, weeds, leafy stubble or edible bush in the paddock.

The safestt and most effective calcium supplement is finely ground limestone added to the feed, but some farmers have used other sources of calcium such as gypsum and superphosphate in this manner.

Intensive Animal Industries In The Peel-Harvey Catchment, R W. Payne

Journal of the Department of Agriculture, Western Australia, Series 4

The Swan coastal plain to the north and south of Perth is attractive for the intensive production of pigs and poultry for several reasons. It is close to markets, feed manufacturers and labour; has a less extreme climate than inland areas; and is underlain by a large reserve of high quality groundwater.

Because these are all intensive operations, large quantaties of nutrient-rich waste are produced over a very small area. They can severely damage ground and surface waters unless steps are taken to control the wastes which they produce.

This article oulines both the nature of intensive aniamal industries in …

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: …

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

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.

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.

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.

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 …

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,

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.

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.

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.

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 …

Residual Influence Of Macronutrient Enrichment On The Aquatic Food Web Of An Okefenokee Swamp Abandoned Bird Rookery, J. Douglas Oliver, Steven A. Schoenberg

Faculty Publications and Presentations

We present evidence for residual nutrient enrichment of diverse components of a blackwater marsh, by a biotic component of the ecosystem itself. Thousands of nesting white ibis (Eudocimus albus) that foraged over a 20-km radius fertilized a rookery with guano within Okefenokee Swamp. Georgia. USA. One to two yr after the birds abandoned it. this marsh showed continued enrichment effects. Elevated available phosphorus in sediments, as measured by equilibrium phosphate concentration, contributed to enhanced biomass of phytoplankton in the overlying water column. Planktivorous fish were greater in biomass than at reference sites. Experimental phosphorus and nitrogen fertilization of enclosures at …

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 …

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.