Fresh Water Studies Commons^™

Investigations Of Ryegrass Toxicity., Brian A. Stynes.

Experimental Summaries - Plant Research

Control of spray topping, 82KA28. Emergence of nematode larvae from galls, 82KA29, 82NA33, 82M019. Effects of long term cropping, 81KA57. Long term effects of spray topping, 81KA58. Development of toxicity, 81KA47, 81NA47, 81M047.

Report No 56 - 1981 Review Of Rainfall And Wetlands In The South-West Of Western Australia, J. A.K. Lane, D. R. Munro

Fisheries Research Reports

An account is given of the biological principles involved in decisions concerning duck-shooting seasons in the south-west of Western Australia.

The conditions for waterfowl which prevailed during 1981 are described through the use of rainfall statistics and data obtained from the Department's wetland monitoring programme.

Rainfall was generally average over central and northern areas of the south-west during 1981. Rainfall in southern areas, however, was generally

below to much-below-average, although south coastal areas from Augusta to Albany received average falls.

Unusually heavy falls were recorded in North Coastal, North Central and Central Coastal Districts in May, and average falls were …

Sorrel, Dicamba Soil Residual Effects, Glean, Veldt Grass, Declared Weeds Blackberry, Pattersons Curse, Penny Royal, J Moore

Experimental Summaries - Plant Research

CONCLUSIONS This trial has confirmed the field observation that 2,4,5-T whilst giving good initial control of Pennyroyal, fails after a number of years. Round up has a far longer term effect. This can only be attributed to a more complete initial kill as both herbicides are essentially non residual. Further work needs to be conducted on Round up in combination with soil residual chemicals or multiple applications to overcome the problem of reinfestation from seed reserves. 81A1 -01

Grapevines - Herbicide Tolerance, Sorrel - Effects Of Nutrients, Bracken - Wick Application, Pennyroyal - Control, Blackberry – Control., John Moore

Experimental Summaries - Plant Research

Grapevines - Herbicide tolerance Sorrel -Effects of Nutrients Bracken- Wick application Pennyroyal - Control Blackberry - Control 82 MT 57, 82 MT 58, 82 MT 59, 81 MT 60, 80 KA 40, 80KA39, 82 AL 48, 80 AL 10, 81 AL 101,

Oilseed Agronomy., A. G. Mckay

Experimental Summaries - Plant Research

Time of nitrogen application on rapeseed, 82MT39. Time of sowing x rate of nitrogen on rapeseed, 82MA16, 82AL42. Oilseed phenology trials brassica species, 82A5, 82BA40, 82C35, 82E30, 82M33, 82MT36, 82WH29. Rapeseed windrowing, time of harvest, 82MT35, 82AL50. Shattering differences among rapeseed lines, 82MT37, 82WH30. Wesroona reselection evaluation, 82MT38. Triazine herbicide resistant rapeseed, 82GL12. Podquat on rape seed 82MT54. Sunflower varieties, winter sown, 82GE31

1. Phosphorus Sources Trials 2. Miscellaneous Trials, J W. Bowden, R J. Lunt, M J. Baker

Experimental Summaries - Plant Research

Sources of phosphorus trials - 1982 results. Pasture Trials, 76MT10, 77MT1, 77MT2, 76BU1, 77EI. Cropping Trials, 76WH14, 76WH10, 76WH9, 76N4, 76LG6, 80BA6. Trials not assessed in 1982, 77WH2 Pasture phase. Miscellaneous trials. Long term trials, 66M30, 65Al, 65A1, 65C5, 69WH15, 75LG26, 81N044, 78BA7. 1982 Trials, 82N04, 82BA2, 82N02, 82N05, 82WH2, 81N044.

Soil Physical Conditions And Crop Production, A. P. Hamlin

Experimental Summaries - Plant Research

1a. Differences in water balance and resultant crop growth related to soil structure: Merredin red brown solonized earth. 1b. Soil structure effects on crop growth (Merredin). 77M13, 77M56. 2. Water balance studies under wheat on Wongan loamy sand (82WH8)

Summary Of Experimental Results., J. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

81GE22. 81GE28, soursob control. 81N056, in cereals. 81N057. 82LG34, chemical x water volumes (broadleaved weeds). 82LG36, hoegrass, rate x volume (ryegrass). 82N039, crop damage in wheel tracks x spraying. 82N043, ropewick for cape tulip control. 82NR3, patersons curse control in hay crops. 82NR8, patersons curse control in hay crops. 82N055, hoegrass, rate x volume (wild oats). 82N056, chemical x volume (broadleaved weeds). Demonstration, soursob control in cereals. 82ME44, matricaria control in cereals. 82ME57, crop damage in wheel tracks x spraying. 82ME59, chemical x volume (broadleaved weeds). 82ME60, hoegrass, rate x volume (ryegrass). 82ME81, matricaria control in pastures. 82ME86, cereal tolerance …

Phosphorus Nutrition On Leaching Sands., D. M. Deeley, S. M. Mason, B. G. Barker

Experimental Summaries - Plant Research

The excessive amounts of nutrients entering the Peel-Harvey Estuarine system have resulted in a marked increase in the abundance of algal species .within the estuary and reduced production on the sandy coastal soils of the catchment from which the nutrients are being leached. Recent stream samplings by D.C.E have shown that the deep grey Bassendean sands may be contributing up to 40 per cent of the total P loading in the Harvey River. Agriculture Department trials around Albany on similar sands have shown that up to 80 per cent of the bicarb extractable P may be lost after only 150 …

Low Rainfall Pasture Project., M. Ewing

Experimental Summaries - Plant Research

1. Variety Trials - large plots: 82ME47, 82ME48, 82ME49, 82ME50, 82ME51, 82M27, 82N044, 82N31, 82TS27, 82LG32, 82TS32 2. Variety Tests – rows: 82M40, 82M44, 82M45, 82M49, 82M59, 82ME77. 3. Pasture Establishment and Re-establishment: 82M41, 82M42. 4. Lupins - Rates of P. 82ME64.

Alternative Pasture Species To Ryegrass For Areas Affected By Annual Ryegrass Toxicity., P. Dixon

Experimental Summaries - Plant Research

The aim of this project is to find alternative pasture species to ryegrass in areas which are affected by Annual Ryegrass Toxicity, 82 KA 45. Pasture species row evaluation, 82 KA 40. Pasture species row evaluation, 82 KA 41. Pasture species row evaluation, 82 KA 42. Pasture species row evaluation, 82 KA 43. Medic species trial, 82 KA 44. Medic species trial, 82 KA 45.

Diseases Of Lupins And Lupinosis., P M. Wood

Experimental Summaries - Plant Research

Lupin diseases, 82 TS 30, 82 TS 29, 82 TS 28, 82 GE 24, 82 ME 45, 82 ME 46, 82 BR 20,

Pasture Species Investigations High Rainfall Area., D. A. Nicholas

Experimental Summaries - Plant Research

Selection of an alternative to cv Woogenellup clover. 79MT48, Mount Barker research station. 79MA13, Palgarup. 80AL59, Narribup. 80BR18, Mayanup. 80BU7, Vasse. 81NA37, North Bannister. 81PE6, Byford. 82NA36, West Wandering. 82AL72, South Stirlings. Screening of midseason to late maturing lines of subterranean clover. 82BU12, Karridale. 82AL71, Cuthbert.

Long Term Rotation Trials, Lupins, Wheat Rotation, Continuous Cropping With Nitrogenous Fertiliser, I. Rowland

Experimental Summaries - Plant Research

Long Term Rotation Trials, 66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16. Lupins, wheat rotation, 79GE36, 80TS3, 82TS2. Continuous cropping with nitrogenous fertiliser, 80NA6.

1. Doublegee Dormancy 2. Lupins - Chemical Tolerance Of Kiev Mutant 3. Lupins - Simazine And Diuron Plus Mixtures 4. Lupins - Pp009 5. Lupins - New Herbicides 6. Lupins - Ssh 0860, D. J. Gilbey, R. Klemm

Experimental Summaries - Plant Research

Doublegee seed longevity x cultivation - 75WH65, Doublegee seed longevity x depth- Effect of burial on longevity of doublegee achenes - 75WH66, 76C9, 76KA8, 82 N 25, 82 N 24, 82 N 30, 82 LG 30, 82 LG 33, 82 KA 35, 82 KA 36, 82TS38, 82GE33, 82TS37, 82ME62, 82BA42, 82GE35, 82TS36, 82 NO 62, 82 ME 83, 82GE36, 82TS35, 82ME63B, 82M038, 82GE32, 82BA41, 82ME63A,

Experimental. Summary 1982 Trials., J E. Holmes, R J. Thomas

Experimental Summaries - Plant Research

Brome grass, Barley grass, Silver grass, Rye grass, Tank mixes for minimum tillage, Grass herbicides for pastures. 82N41, 82BA48, 82WH44, 82N38, 82GL39, 82Ge40, 82TS39, 82Lg43, 82Ba47, 82WH47, 82Lg44, 82Me65, 82Lg43, 82Nr10, 82MT46, 82N39, 82Ba45, 82LG48, 82M48, 82Na34, 82Ka38, 82WH45, 82Ba46 and 82N40.

Deep Ripping Effects On Cultivation Pans, Root Growth, Crop Growth, Soil Water Relations And Yields., D. Tennant

Experimental Summaries - Plant Research

Experiment programme. 77WH17, 82WH2, 82WH35, 82WH36, 81M52.

Grain Legume Agronomy Programme., G. H. Walton

Experimental Summaries - Plant Research

Lupin agronomy, Series l - Growth factor interactions. 82GE18, 82GE19, 82N038, 82N18, 82MA13. Lupin agronomy, Series 2 - Harvest index response to density 82GE20, 82M24. Lupin agronomy, nutrition, 82GE21, 82MA14, 82M017. Erregulla lupin rotation plots, 81M027, 81M029, 81M030. Grain legumes for wheatbelt rotations, 81GE6,81TS3, 81ME3, 81M05, 81MO14. Grain legume species trials, 81E30, 82NA31, 82JE23, 82E26, 82LG28. Low rainfall, medium soils pH 5.5 to 7.0, 82ME41, 82ES35, 82ES36, 82TS25, 82ME39. Sites that failed, 82GE23, 82ME40, 82JE18. Field pea agronomy, 82LG27, 82LG26. Oat/lupin mixtures for grain feed 82Bu9, 82Bu10, 82AL34. Oat/pea mixtures for hay, 82PE21, 82KA37. Fababean nodulation, 82MD16, 82MN25.

Sulphur Nutrition Of Pastures, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands And Soil Acidity - High Rainfall Pastures., J. S. Yeates., M. F. Clarke

Experimental Summaries - Plant Research

Sulphur - high rain fall areas. Rates and time of application of sulphur as superphosphate to pastures. 79AL2, 79AL23, 79AL41, 82BY7, 82BY8, 82PE2. Sulphur rundown on heavy soils - 81BY1. Sources, rates, time of application of sulphur to pastures. 80AL1, 80AL4, 81AL3, 81AL4. Sulphur - low rainfall areas. Sulphur on pastures 80JE16/17, 82AL9, 82KA4. Sulphur on crops 82ME68 (with G Fosberry). Phosphorus. Sources, rates, time of application of phosphorus on high rainfall deep sand pastures. 80AL2, 80ALS, 80AL15, 81AL5, 81KE2, 81MA4, 82AL10. Potassium. Sources, rates, time of application of potassium on high rainfall deep sand pastures. 80AL3, 80AL6, 81AL7, 81AL8. …

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman

Arkansas Water Resources Center Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contract No. DACW03-81-C for the U.S. Army Corps of Engineers by the Water Resources Research Center at the University of Arkansas.

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume Ii, James Ferguson, Robert Shulstad, William Bateman

Arkansas Water Resources Center Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contr

Diagenesis Of Organic Matter In Las Vegas Bay And Bonelli Bay, Lake Mead, James W. Murray, Carolyn J. Jones, Kathy Kuivila, Jeff Sawlan

Publications (WR)

The interstitial water chemistry of the sediments of Las Vegas Bay and Bonelli Bay in Lake Mead has been studied as part of a comprehensive water quality study of those locations. Pore water and solid phase analyses were completed from four stations in Las Vegas Bay and two stations in Bonelli Bay. At both locations the pore water compositions and organic matter diagenesis in the sediments are dominated by sulfate reduction. This major role of sulfate reduction is unusual for lake sediments and reflects the fact that SO₄ is the major anion in the lake water. In addition, gypsum …

Chemical And Biological Structure Of Lake Mead Sediments, Richard T. Prentki, Larry J. Paulson, John R. Baker

Publications (WR)

Lake Mead has undergone a serious decline since Glen Canyon Dam was constructed 450 km upstream in 1963.

State fisheries management agencies are concerned that the decline was caused by water level fluctuations and more severe drawdowns during the bass spawning season, when the operation of Hoover Dam was altered during the post-Lake Powell period.

The construction of Glen Canyon Dam and formation of Lake Powell in 1963 drastically altered the natural discharge and temperature cycles and decreased suspended sediment and nutrient loading in the Colorado River inflow to Lake Mead. Recent studies indicate that these changes in nutrient loading …

Maine's Whitewater Rapids And Their Relevance To The Critical Areas Program, Janet Mcmahon

Maine Collection

Maine's Whitewater Rapids and Their Relevance to the Critical Areas Program

by Janet McMahon

Planning Report No. 74, Critical Areas Program, 184 State St., Augusta, Maine,

April, 1981 (additions made in October, 1981). Reprinted July, 1983.

Contents: Introduction / Natural History of Whitewater Rapids / Methods / Criteria / Results / Conclusions / General Evaluation of Whitewater Rapids for Inclusion on the Register of Critical Areas / Bibliography / Action Plan

Aerial Spraying Trial., G A. Pearce

Experimental Summaries - Plant Research

Conclusions 1. The volume of application with water affected the results obtained. The visual results of Treatment 1 suggested it was not an acceptable commercial result and the plant counts support this conclusion. Treatments 2 and 3 looked very similar and were very similar and were very acceptable results. 2. The height of spraying affected the results in that where the plane had to start climbing to pass over trees, the effectiveness dropped off. 3. Spray drift could be a problem because of the risk of causing damage to trees and native vegetation. Severe damage was seen on trees at …

Investigations Of Ryegrass Toxicity., Brian A. Stynes

Experimental Summaries - Plant Research

81KA47, 81NA47, 81M047, 81KA48, 81NA45, 81M045, 81KA50, 81NA46, 81M046, To monitor the amount of toxin present in galls from the time of first head emergence until maturation of the ryegrass pastures. To relate the onset and development of toxicity to plant growth stages and climatic conditions in the different regions affected by annual ryegrass toxicity. To relate the level of toxicity to pasture density and to the number of galls present in the pasture. As part of the series of experiments done to monitor the amount of toxin present in pasture at a number of sites throughout the seasons, an …

Summary Of Experimental Results Field Trials 1981, P A. Rutherford

Experimental Summaries - Plant Research

80NA46, 80NA45, 79TS27, 80A46, 80NA50, 79N036, 81M041, 81Pe12, 79KU1, Weed control on roaded catchments. Demonstration catchment. Chemical firebreaks on deep white sand. Chemical firebreak evaluation - long term. Residual herbicides for annual weed control - long term cost evaluation. Long-term weed control on Railway Track. Control of annual weeds on road shoulders

The Effect Of Soil Acidity On Crop And Pasture Production., W Porter, R Klemm

Experimental Summaries - Plant Research

SUMMARY The effects of lime and molybdenum applications on wheat and subterranean Clover were studied further. Wheat. In relation to lime use, my aim is to develop soil tests to be used to predict when a soil requires lime to produce maximum yield, and to predict the optimum rate of lime. Using the results from field trials commenced in 1980 and 1981 the soil parameters which may be used to predict lime responses in wheat have been narrowed down. From the relationships between soil data and lime responses it appears that soil ph (measured in 1:5 H20 or 1:5 N …

Sulphur Nutrition Of Pastures And Crops, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands, Soil Acidity - High Rainfall Pastures, J S. Yeates, M F. Clarke

Experimental Summaries - Plant Research

A. SULPHUR - HIGH RAINFALL 1. Rates and time of application of superphosphate to pastures. 79AK2, 79AL23, 79AL25, 79AL41, 81BY1, 81KE1. 2. Sulphur soil test calibration on pastures. 79AL18, 80BY2, 80KE2. 3. Sulphur soil test calibration on pastures: Co-operative PKS soil test project on pastures on duplex soils of the east Albany area (PRD/ARO). Sulphur results. 80 AL44, 46, 47, 48, 72, 73 81AL51, 53, 55 4. Sulphur on adsorbing soils receiving no current S input. 80BY1., 80AL16. 5. Sources, rates, time of application of sulphur on pastures. 80AL1, 80AL4, 81AL3, 81AL4, 80KE1, 80MA1 B. SULPHUR - LOW RAINFALL 1. …

Report No 47 - 1980 Review Of Rainfall And Wetlands In The South-West Of Western Australia, J. A.K. Lane, D. R. Munro

Fisheries Research Reports

An account is given of the biological principles involved in decisions concerning duck-shooting seasons in the south-west of Western Australia.

The conditions for waterfowl which prevailed during 1980 are described through the use of rainfall statistics and data obtained from the Department's wetland monitoring programme.

1980 was the fifth consecutive year of below-average rainfall in all five Meteorological Districts of the south-west. 1976 to 1980 was thus' the south-west's driest five-year period since 1913 at least.

Low rainfall during 1980 resulted in a further decline in the condition of wetlands throughout most of the inland south-west, Few gauged wetlands increased …