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Articles 37861 - 37890 of 39785
Full-Text Articles in Physical Sciences and Mathematics
Plant Viruses., G. D. Mclean, L. K. Price, J. A. Weir, J. M. Allen, P. Fievez, P. A. Portmann, R. J. Mclean, J. D. Sandow
Plant Viruses., G. D. Mclean, L. K. Price, J. A. Weir, J. M. Allen, P. Fievez, P. A. Portmann, R. J. Mclean, J. D. Sandow
Experimental Summaries - Plant Research
Clover viruses, 82ES38, 82AL47, 82MA19, 82BR19, 82BY29; 82BU5, 82HA9. Lupin virus, diseases. Barley yellow dwarf virus, 82AL46, 82AL51, 82B10, 82BA33, 82BR16, 82BR18, 82C29, 82E27, 82ES37, 82ES40, 82JE19, 82JE20, 82KA33, 82KA34, 82ABI3, 82MA18, 82MN22, 82MT34, 82NA32, 82WH28,82B8, 82MN17, 82E24, 82MT30, 82E25, 82MN18, 82MT31, 82B9, 82ABI2, 82BA31, 82C26, 82JE17, 82WH27, 82AL45, 82BR17, 82ES39, 82MA1, 82MA117, 82MT33,
The Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia, Seed Pools And Seedling Establishment In Pennyroyal (Mentha Pulegium), Regeneration Of Afghan Thistle (Solanum Hoplopetalum), F. D. Panetta
Experimental Summaries - Plant Research
To assess the viability of seed produced under natural conditions. To determine the size of seed banks in different areas and to determine when seedling establishment occurs on a seasonal basis. To assess the relative contribution of reproduction by seed and root fragments to the persistence and growth of populations. To determine if reproduction from root fragments occurs more readily at certain times of the year
Summary Of Experimental Results., J. Peirce, B. J. Rayner
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 …
Row Spacing On Wheat Yield, M. L. Poole.
Row Spacing On Wheat Yield, M. L. Poole.
Experimental Summaries - Plant Research
The main aim of these trials was to provide preliminary information on the effect of row spacing on wheat yield. 82M56, 82M57, 82N37, 82M54, 82M55, 82ME75, 82ME76, 82N36, 82LG4.
Investigations Of Ryegrass Toxicity., Brian A. Stynes.
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.
Long Term Minimum Tillage Investigations, R J. Jarvis
Long Term Minimum Tillage Investigations, R J. Jarvis
Experimental Summaries - Plant Research
77A16, 77WH17, 77M13, 78M25, 77E18, 77Mt15, 78Ba42, 77A43, 77WH88, 77M56, 82M35, 77E52, 77Mt51, 82N21, 82LG47, 82KD3, 82M29, 82M30, 79M7, 79WH6, 82M34, 82LG4, 82ME38, 82M46, 82GE37, 82GE38, 82M35, 81M53, 82N48, 82NO49, 82NO51, 77WH17, 80NO46, 81NO3, 81NO4, 82MO35, 82MO36, 82MO34, 82MO34, 82MO37, 82WH2, 80A44, 82M32, 82M61, 82N32, 81LG3, 82M31, 81M45, 81NO2, 81M52.
Soil Physical Conditions And Crop Production, A. P. Hamlin
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)
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
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,
Toxic Substances, R. Bieri, O. Bricker, R. Byrne, R. J. Diaz, Et Al
Toxic Substances, R. Bieri, O. Bricker, R. Byrne, R. J. Diaz, Et Al
VIMS Books and Book Chapters
This part of the CBP Synthesis Report summarizes and integrates the research findings and reconnnendations of 13 projects of the Chesapeake Bay Toxic Substances Program performed between July 1978 and October 1981. The following sections describe research on potentially toxic substances, or toxicants, in water-sediments and selected biota. The subjects considered include a brief review of metals, their sources, distribution and behavior, and then a review of sources and distribution of organic chemicals. Finally, information concerning the significance of toxicants in the- Bay and their pattern of enrichment is provided. Most information synthesized in this report can be traced to …
Light And Submerged Macrophyte Communities In Chesapeake Bay: A Scientific Summary, Richard L. Wetzel, Robin F. Van Tine, Polly A. Penhale
Light And Submerged Macrophyte Communities In Chesapeake Bay: A Scientific Summary, Richard L. Wetzel, Robin F. Van Tine, Polly A. Penhale
VIMS Books and Book Chapters
The initial focus of submerged aquatic vegetation (SAV) research in the U.S. Environmental Protection Agency (EPA), Chesapeake Bay Program (CBP) was evaluation of the structural and functional ecology of these communities. In the upper Bay, Myriophyllum spicatum and Potamogeton perfoliatus are the dominant species; the dominant species in the lower Bay are Zostera marina and Ruppia maritima. Studies centered on various aspects of productivity (both primary and secondary), trophic structure, and resource utilization by both ecologically and economically important species. Much of the initial research was descriptively oriented because of a general lack of information on Chesapeake Bay submerged plant …
Conservation Measures In The Interim Fishery Management Plan For Atlantic Groundfish, Andrew P. Matykiewicz
Conservation Measures In The Interim Fishery Management Plan For Atlantic Groundfish, Andrew P. Matykiewicz
Marine Affairs Theses and Major Papers
The conservation measures used in the Interim Fishery Management Plan for Atlantic Groundfish (IFMP) were analyzed. The management techniques used include a minimum mesh size, minimum fish size and haddock spawning area closure. However the mesh regulation does not adequately address the IFMP conservation objectives. Without amendment, the IFMP cannot prevent overfishing as it is required to do by the Magnuson Fishery Conservation and Management Act (MFCMA). The use of a non-numeric Optimum Yield (OI) for groundfish is inappropriate without a definition of overfishing and without a contingency plan to prevent overfishing.
Ecology, Economics, And Law In The Conservation And Management Of Cetaceans, John David Roanowicz
Ecology, Economics, And Law In The Conservation And Management Of Cetaceans, John David Roanowicz
Marine Affairs Theses and Major Papers
No abstract provided.
Iowa Academy Of Science Membership Roster And Leadership Directory, 1982-83, Iowa Academy Of Science
Iowa Academy Of Science Membership Roster And Leadership Directory, 1982-83, Iowa Academy Of Science
Iowa Academy of Science Documents
Table of Contents:
Board of Directors ... 1
Section Chairs ... 2
Section Vice Chairs ... 4
Committees ... 6
Past Presidents ... 20
Award Recipients ... 20
Membership Roster ... 23
Constitution, Article III ... 37
Long Term Rotation Trials, Lupins, Wheat Rotation, Continuous Cropping With Nitrogenous Fertiliser, I. Rowland
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.
Deep Ripping Effects On Cultivation Pans, Root Growth, Crop Growth, Soil Water Relations And Yields., D. Tennant
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.
Grass Control In Legume-Grass Pastures., C. W. Thorn.
Grass Control In Legume-Grass Pastures., C. W. Thorn.
Experimental Summaries - Plant Research
1. Crop results following grass control in 1981 Trials. 81AL1, 81Na3, 81Ba2, 81Kal, 81Ka2, 81N3, 81N21, 81A23, 81AL88.
2. Effect of grass control on animal production trials. 81M01, 82Na29.
3. Effect of grass control on take-all trials. 82LG25, 82Na30.
4. Effect of pasture density and composition on soil nitrogen trials. 81A24, 82Na5, 82WH32.
5. Grass control on rotations trials. 82E35, 79E15.
6. Grass control in re-seeded clover pastures trials. 82N16, 82WH26.
Phosphorus Nutrition On Leaching Sands., D. M. Deeley, S. M. Mason, B. G. Barker
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 …
Alternative Pasture Species To Ryegrass For Areas Affected By Annual Ryegrass Toxicity., P. Dixon
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.
Season, Growth Regulant / Seed Treatment / Foliar Spray Trials, D. Miers, M. Perry
Season, Growth Regulant / Seed Treatment / Foliar Spray Trials, D. Miers, M. Perry
Experimental Summaries - Plant Research
Rates and times of application of two chlormequat formulations. 82 BA 5, 82 c 3, 82 E 3, 82 M 3, 82 MR 6, 82 N 4, 82 WH 6. Growth regulators / seed dressings / foliar sprays on wheat. 82 BA 4, 82 BR 2, 82 LG 6, 82 MT 5, 82 TO 3, 82 c 2, 82 M 2, 82 N 3, 82 WH 5, 82 E 2, 82 ME 4, 82 NA 7, 82 KA 9a, 82 MO 2s, 82 NO 6, 82 KA 9b, 82 MO 2b, 82 NO 9. Chlormequat on yield and head loss …
Take-All Of Cereals. Rhizoctonia Patch Of Cereals. Minimum Tillage Trials, 1982., G. C. Macnish
Take-All Of Cereals. Rhizoctonia Patch Of Cereals. Minimum Tillage Trials, 1982., G. C. Macnish
Experimental Summaries - Plant Research
Take-all of cereals. 76LG25, 77E4, 77MT19, 82AL53, 82AL54, 82NA35, 82MT40, 79E12, 78JE4, 78ES30, 73SG16, 77ES8, 80JE15, 79E15, 74SG16. 80ES16, 81ES1 (previously 80ES17), 82E16, 82No35, 82E17, 82N 34 (formerly 76LG25), 82AL53, 82AL54, 81NA35, 81MT40, 79E12, 78JE4, 80JE15, 80JE15, 80ES38, Experiments not assessed in 1982 were, 77A16, 77M13, 77M56, 78M25, 77WH17, 77WH88. 74A43, 77E18, 77E52, 77MT15, 77MT51.
Grain Legume Agronomy Programme., G. H. Walton
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
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. …
Diseases Of Lupins And Lupinosis., P M. Wood
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,
Experimental. Summary 1982 Trials., J E. Holmes, R J. Thomas
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.
Long Term Rotation Trials, Lupin Wheat Rotation, Continuous Cropping With Nitrogenous Fertiliser., I Rowland
Long Term Rotation Trials, Lupin 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.
1982
1. Phosphorus Sources Trials 2. Miscellaneous Trials, J W. Bowden, R J. Lunt, M J. Baker
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.
Trace Element Nutrition., R F. Brennan, M M. Riley
Trace Element Nutrition., R F. Brennan, M M. Riley
Experimental Summaries - Plant Research
Long term copper trial - Newdegate Research Station 66 N 14. Rates of copper and methods of application on new land 82 Me 43. Wheat response to zinc rates 81 Mo 8. Zinc, sulphur and copper residual with DAP for wheat 78 LG 27. Manganese residual on lupins 78 Ba 26. Manganese on wheat 82 No 8. Manganese on wheat, barley, oats and lupins 82 Br 4. Manganese, zinc, magnesium and lime on wheat varieties 82 Je 21. Foliar application of molybdenum to wheat 82 Me 74. Foliar application of molybdenum to wheat 82 TS 41. Molybdenum and ammonium sulphate …
An Evaluation Of Nutrient Sources To Onslow Bay, North Carolina, Larry P. Atkinson, Leonard J. Pietrafesa, Eileen E. Hofmann
An Evaluation Of Nutrient Sources To Onslow Bay, North Carolina, Larry P. Atkinson, Leonard J. Pietrafesa, Eileen E. Hofmann
CCPO Publications
Hydrographic and current meter data from Onslow Bay, North Carolina, were examined to determine the relative importance of various nutrient sources.
Upwelled Gulf Stream water is the major source of nutrients while rivers represent a minor, if not insignificant, source. In the summer during stratified conditions, the upwelled water penetrates across the shelf, but in the winter the upwelled water is restricted to the outer shelf. Nitrate flux across the 40 m isobath was calculated from continuous temperature and current records. Flux during the summer of 1976 was 2 μM m2 sec-1 which is considerably less than flux …
Pasture Species Investigations High Rainfall Area., D. A. Nicholas
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.
The Effect Of Soil Acidity On Crop And Pasture Production, Summary Of Experimental Results, 1982., W. Porter., S. Carr., R. Klemm.
The Effect Of Soil Acidity On Crop And Pasture Production, Summary Of Experimental Results, 1982., W. Porter., S. Carr., R. Klemm.
Experimental Summaries - Plant Research
82ME54, 82M024, 82TS33, 82M5, 82ME10, 81TS1, 81TS30, 81LG8, 81M54, 82ME31, 82ME55, 82ME56.