Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (8361)
- University of Nebraska - Lincoln (2756)
- Department of Primary Industries and Regional Development, Western Australia (1899)
- Selected Works (1570)
- Nova Southeastern University (1159)
-
- University of Wollongong (1145)
- Utah State University (1122)
- William & Mary (1121)
- Old Dominion University (1068)
- University of Northern Iowa (992)
- Western Washington University (893)
- Wright State University (703)
- University of Nevada, Las Vegas (564)
- Kansas State University Libraries (559)
- Denison University (545)
- University of Colorado Law School (501)
- University of Arkansas, Fayetteville (484)
- Loyola Marymount University and Loyola Law School (467)
- Virginia Commonwealth University (451)
- University of Dayton (387)
- Western Kentucky University (375)
- Universitas Indonesia (369)
- The University of Maine (362)
- University of Texas Rio Grande Valley (356)
- Portland State University (353)
- Brigham Young University (296)
- SIT Graduate Institute/SIT Study Abroad (296)
- South Dakota State University (286)
- SelectedWorks (256)
- University of South Carolina (249)
- Keyword
-
- Western Australia (1274)
- Grains and field crops (659)
- Climate change (564)
- CMMB (416)
- Grazing (392)
-
- Stander Symposium project (371)
- Water quality (332)
- Biodiversity (310)
- GeoQUEST (305)
- Conservation (302)
- Sustainability (285)
- Ecology (257)
- Nitrogen (257)
- Agriculture (254)
- Climate (235)
- Groundwater (229)
- Salinity (229)
- Research and Technical Reports (217)
- United States (209)
- Management (203)
- California (202)
- Soil (193)
- Environment (180)
- Grassland (180)
- Alfalfa (178)
- Biosecurity, pests, weeds and diseases (175)
- Sheep (174)
- Australia (173)
- Phosphorus (172)
- Restoration (164)
- Publication Year
- Publication
-
- IGC Proceedings (1993-2023) (7001)
- Faculty of Science - Papers (Archive) (1143)
- Salish Sea Ecosystem Conference (810)
- Experimental Summaries - Plant Research (725)
- Journal of the Iowa Academy of Science: JIAS (693)
-
- Dissertations, Theses, and Masters Projects (588)
- The Synapse: Intercollegiate science magazine (545)
- Kno.e.sis Publications (541)
- United States Department of Agriculture Wildlife Services: Staff Publications (518)
- Theses and Dissertations (496)
- Conference on Applied Statistics in Agriculture (488)
- The Prairie Naturalist (483)
- Electronic Theses and Dissertations (450)
- Marine & Environmental Sciences Faculty Articles (414)
- Biology and Medicine Through Mathematics Conference (402)
- Kentucky Alfalfa and Stored Forage Conference (382)
- Reports (374)
- Stander Symposium Projects (371)
- Memorandum (316)
- Kesmas (310)
- Journal of the Department of Agriculture, Western Australia, Series 4 (306)
- Independent Study Project (ISP) Collection (289)
- School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations (268)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- OES Faculty Publications (263)
- Resource management technical reports (247)
- HCNSO Student Theses and Dissertations (246)
- Journal of Marine Science and Technology (246)
- Graduate Theses and Dissertations (238)
- United States Agricultural Commodities in Drought Archive (219)
- Publication Type
Articles 36991 - 37020 of 39787
Full-Text Articles in Physical Sciences and Mathematics
Comparison Of Electrical Moisture Meters For Baled Alfalfa Hay, W. H. Henson Jr., G. M. Turner, Michael Collins, O. J. Yeoman
Comparison Of Electrical Moisture Meters For Baled Alfalfa Hay, W. H. Henson Jr., G. M. Turner, Michael Collins, O. J. Yeoman
Kentucky Alfalfa and Stored Forage Conference
A primary concern in producing quality alfalfa hay is moisture measurement. Some precision in moisture measurement is required since hay can be too wet, leading to dry matter and quality loss through mold; it can be too dry, leading to shatter loss during baling, handling and storage.
Moisture measurement in hay can take many forms. One form of subjective (personal judgment) evaluation is brittleness of leaves and stems in the windrow or bale. Typical objective methods consist of electric meters with calibration curves and oven drying.
Advances In Alfalfa Weed Control, James R. Martin
Advances In Alfalfa Weed Control, James R. Martin
Kentucky Alfalfa and Stored Forage Conference
The most significant advances in weed control in alfalfa have originated from developments in herbicide technology, This method of weed control began over 20 years ago when such herbicides as EPTC and 2,4-DB were being used by alfalfa farmers. Since then, more than twelve herbicides have been added to the list of products recommended for weed control in alfalfa. (For specific recommendations, see Extension publication "Chemical Control of Weeds in Kentucky Farm Crops", AGR-6).
Influence Of Potato Leafhopper On Alfalfa Yield And Quality, C. M. Christensen
Influence Of Potato Leafhopper On Alfalfa Yield And Quality, C. M. Christensen
Kentucky Alfalfa and Stored Forage Conference
The potato leafhopper has the distinction of being one of the native insects that can have a very major impact on the production characteristics of alfalfa. This insect is very definitely the second most important pest of this crop, with the alfalfa weevil, an imported insect, holding the distinction of being the most damaging. These tiny insects (full grown potato leafhoppers are 1/8 inch long) have a very definite impact on alfalfa but their damage is very insidious and hard to recognize.
Quality Seed Production And Use, Garry D. Lacefield
Quality Seed Production And Use, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Quality seed is an important consideration and investment in an efficient alfalfa program. Farmers who depend on alfalfa need to be certain that the seed they purchase is of high quality. High quality seed means it must be free of noxious weeds, have a purity of 99.5 percent, a germination of approximately 90 percent or higher and be seed that is true to the variety stated.
Effects Of Soils And Fertility On Alfalfa Production, Monroe Rasnake
Effects Of Soils And Fertility On Alfalfa Production, Monroe Rasnake
Kentucky Alfalfa and Stored Forage Conference
Alfalfa can be grown anywhere in Kentucky and on a wide range of soil types. This statement seems to contrast with what we are accustomed to hearing in regard to alfalfa. The usual statement is: "Alfalfa requires a deep, well drained and highly fertile soil . . .". Actually, the two statements are not conflicting. They just represent the plant-soil interactions. The first looks at what is possible while the other is concerned with the ideal situation. In order to understand these different perspectives, we need to consider how soil characteristics affect the alfalfa plant.
Foreword [1987], Garry D. Lacefield
Foreword [1987], Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
Maine Acid Rain Study : Reports, Maine Department Of Environmental Protection
Maine Acid Rain Study : Reports, Maine Department Of Environmental Protection
Maine Collection
Maine Acid Rain Study : Reports
Maine Department of Environmental Protection, Augusta, Maine (February, 1987).
Contents: Acid Rain Precursor Inventory and Evaluation / Modeled Sulfur Deposition in Maine / High Elevation Lake Monitoring in Maine
Chesapeake Bay Fisheries: An Overview, Herbert M. Austin
Chesapeake Bay Fisheries: An Overview, Herbert M. Austin
VIMS Books and Book Chapters
The value of the marine resources of the Chesapeake Bay is second only to its value as a transportation corridor. The oyster, blue crab and striped bass or rock fish, along with the sailboat, epitomize our vision of the Bay. Nowhere else do such important renewable natural resources co-exist so closely to man's residential and industrial activities.
Over time, all natural resource distribution and abundance fluctuates in response to a normally fluctuating environment. Man's harvest adds an additional pressure, and in some cases recruitment levels cannot keep pace with consumer demand. In the Bay, pollutants, both intentional point source discharge, …
A Socio-Economic Overview Of The Chesapeake Bay Fisheries, James E. Kirkley
A Socio-Economic Overview Of The Chesapeake Bay Fisheries, James E. Kirkley
VIMS Books and Book Chapters
The marine resources of the Chesapeake Bay are believed to provide substantial benefit to residents of the State of Maryland and Virginia. However, the possibility of overfishing and degradation of the marine environment seriously jeopardizes the possible benefit . In thsi section, a brief overview of the economic importance and characteristics of the Chesapeake Bay marine resources is presented. The potential for economic lossee are discussed relative to observed economic values.
Submerged And Emergent Aquatic Vegetation Of The Chesapeake Bay, Carl Hershner, Richard L. Wetzel
Submerged And Emergent Aquatic Vegetation Of The Chesapeake Bay, Carl Hershner, Richard L. Wetzel
VIMS Books and Book Chapters
Chesapeake Bay supports a diverse assemblage of submerged and emergent aquatic vegetation. The distribution of species of each kind of vegetation is governed largely by salinity. The functions of both submerged and emergent vegetation in the Bay ecosystem includes contributing to total net primary production, service a habitat and performance in both water quality and sedimentation processes. Research on submerged aquatic vegetation is focused on its role in the estuarine system and determinants of its distribution and abundance. Research on emergent vegetation still concerns basic questions of structure and function, but has also branched into methodologies for utilization by man …
Explorations, Vol. 3, No. 2, Maryann Jerkofsky, David H. Clark, David Ebitz, Alan Davenport, David C. Smith, Erodgan Kiran
Explorations, Vol. 3, No. 2, Maryann Jerkofsky, David H. Clark, David Ebitz, Alan Davenport, David C. Smith, Erodgan Kiran
Explorations — A Journal of Research
Cover: Edmund G. Schildknecht, Seated Figure, 1929, oil on canvas, 30” x 25”, acc. no. 85.6.31, bequest of Edmund G. Schildknecht
Articles include:
"Reyes Syndrome Under Attack at UMaine," by MaryAnn Jerkofsky
"Maine Service Abroad: Using Labor Market Results for Planning Education and Training in Developing Countries," by David H. Clark
"Feeling and Form: Four American Paintings in the University of Maine Art Collection," by David Ebitz
"We Stand Corrected," Volume 3, Number 1, of EXPLORATIONS
"Confessions of a Comet Huckster," by Alan Davenport
"H.G. Wells: Socialist, Feminist, Polymath, Educator and Hero," by David C. Smith
"Supercritical Fluids and …
Rhizoctonia Bare Patch Of Cereals And Lupins, G C. Macnish, M W. Sweetingham
Rhizoctonia Bare Patch Of Cereals And Lupins, G C. Macnish, M W. Sweetingham
Experimental Summaries - Plant Research
To determine the stimuli for the formation of rhizoctonia patches in cereals and lupins.
Depth-Controlled Modified Combine For Direct Drilling And Lupin Row Spacing., R. Belford, G Reithmuller
Depth-Controlled Modified Combine For Direct Drilling And Lupin Row Spacing., R. Belford, G Reithmuller
Experimental Summaries - Plant Research
Trial 87WH52, (86M56)
Depth-controlled modified combine for direct drilling.
To compare soil penetration resistance, crop growth, water use, nutrient uptake and root development of wheat 1) sown after scarifying; 2) direct drilled with a combine; 3) direct drilled with the depth-controlled modified combine with loosening ties at 5, 9 or 13 cm; or 4) sown after deep ripping with an Agrowplow to 13 or 30 cm.
Trial 87M82
Location: Merredin Research Station paddock T6 south.
Lupin row spacing
Rapeseed, Tillage., J. D. Warren, Brenda Shackley
Rapeseed, Tillage., J. D. Warren, Brenda Shackley
Experimental Summaries - Plant Research
1. Rapeseed. Assessment of Early Maturing Brassica napus Lines 87KA74, 87LG42, Assessment of Early Flowering Brassica juncea Lines 87KA44, 87E41, 87LG38, 87KA44, 87LG38, Yield Performance of Traizine Resistant Rapeseed 87AL25, 87E40, 87KA42, 87KA42, 87LG37, 87MA32, Assessment of Short Statured B. napus lines 87AL26, 87KA43, 87MA33, Rapeseed Extension: Demonstration Trials 87ERS39, 87JE29, 87KA41, 87NA78. 2. Tillage. The effect of Gypsum, tillage and nitrogen on cereal yields in a continuous crop system 84KA28 The effect of Gypsum, tillage and nitrogen on cereal yields farm system with a medic component 87KA47 Pasture regeneration counts for tillage trials 77MT51, 77M56, 77WH88, 82M35, 85M67A, 86M56.
Intraspecific Variation In Barley To Boron Toxicity, M M. Riley
Intraspecific Variation In Barley To Boron Toxicity, M M. Riley
Experimental Summaries - Plant Research
To investigate the intraspecific variation in tolerance to boron toxicity in a range of barley varieties. 87SG1, 4/4864 and 87SG4.
Effect Of Plant Density On Boron Toxicity In Barley, M M. Riley
Effect Of Plant Density On Boron Toxicity In Barley, M M. Riley
Experimental Summaries - Plant Research
To examine the effect of seeding density on the degree of boron toxicity in barley.
87SG7/4864, 87SG6
Trial 65sg5, I Rowland., W Hawkins
Trial 65sg5, I Rowland., W Hawkins
Experimental Summaries - Plant Research
Trial 65SG5. Location - Paddock H5 on Salmon Gum Research Station
Cleared in 1962, then cropped until the start of the trial in 1968. Two of the four blocks were sown to Cyprus Barrel medic which is topdressed with superphosphate. The other two blocks regenerate volunteer pasture which is not topdressed. In 1984 all pasture plots were sown to SERENA medic. This grew exceptionally well in 1984 and set a lot of seed. In 1987 field peas were introduced into 4 reps of an existing medic: crop rotation.
Rates, Times And Sources Of Nitrogen On Wheat, J W. Bowden
Rates, Times And Sources Of Nitrogen On Wheat, J W. Bowden
Experimental Summaries - Plant Research
Trial 87WH51
Location: Wongan Hills Research Station.
This trial was put onto a site adjacent to Mel Mason's source of nitrogen trial and the CSIRO, 15 N plots to provide some explanation of the results from the limited treatments in those trials. They were designed to monitor soil/fertiliser nitrogen transformations with time. Unfortunately the site of this trial was variable. The end most similar to the other trials was deeper and sandier and stored less water than the other and where crop growth was far better.
87WH51
Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley
Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley
Experimental Summaries - Plant Research
The trial was effectively a tolerance trial. Best overall weed control was achieved with Glean and the higher rates of Isoproturon which in turn gave best control as a pre-plant, incorporated treatment.
87A23, 87WH54
Post Emergence Weed Control In Lupins., R. Madin, J. Buckley
Post Emergence Weed Control In Lupins., R. Madin, J. Buckley
Experimental Summaries - Plant Research
As a general assessment in can be said that Tigrex is a safe and efficient herbicide for control of radish in wheat. Brodal alone was generally unsatisfactory for radish control. While Diuron + Brodal was safe and efficient, Ally and Brodal should not be used together. Diuron + MCPA gave poorer control than one would normally expect.
87WH67
Control Of Peas And Lupins In Wheat, J. R. Peirce, B. J. Rayner
Control Of Peas And Lupins In Wheat, J. R. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
Trial 87A29
Lupins were easier to kill than peas.
Glean applied pre-sowing gave very poor control of both peas and lupins.
The treatment using higher rates of 2,4-D amine in diuron mix also caused lower yields.
The Tordon 242 treatment appeared to cause some yield depression.
Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm
Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm
Experimental Summaries - Plant Research
Trial 87LG65
Glean post-em @ 10 and 15 g/ha gave good control.
A later trial gave good control with Garlon 4800 or 2,4-D amine when sheep grazed the weed after treatment. Considerable pasture damage would be done with all chemicals during the growing season.
Control Of Cereal Crop Diseases By Manipulation Of Pasture Composition., W Macleod
Control Of Cereal Crop Diseases By Manipulation Of Pasture Composition., W Macleod
Experimental Summaries - Plant Research
Rotation for wheat comparing pure clover ley with a pasture ley, 79E15.
Pasture renovation techniques and crop production in a 1:2 rotation, 81E35.
Pasture manipulation – effects on take all, 85E32.
Timing of spray topping and herbicides, 86MT64, 86E55.
Effect of herbicide application on take all inoculum, 87MD12.
The effects of pre and post sowing herbicides on wheat root diseases.
Herbicide disease interaction in recommended varieties, 87E29, 87MT51.
Lupin Seeding Rates, Pea Seeding Rates, And Weed Control., K. French, A. Little
Lupin Seeding Rates, Pea Seeding Rates, And Weed Control., K. French, A. Little
Experimental Summaries - Plant Research
Lupin seeding rates, 87ME70. Lupin seeding rates on deep soils, 87ME71. Lupin seeding rates on shallow duplex or gravel soils, 87N27. Lupin seeding rates on deep soils, 87N28, 87A27. Lupin seeding rates on shallow duplex or gravel soils, 87KA54, 87TS32, 87NA88, 87M066, Lupin seeding rates on heavy soil, 87A26, 87TS33. Lupin seeding rate by seed size, 87ME92. Pea seeding rates, 87ME72, 87KA56. Broadleaf weed control in field peas, 87LG41. Grass control in peas, 87LG53
Harvest Index Of Lupins, Low Tillering Cereals And Maturity By Sowing Date In Cereals., R. J. Delane, J. C. Mathews, J. A. Bright
Harvest Index Of Lupins, Low Tillering Cereals And Maturity By Sowing Date In Cereals., R. J. Delane, J. C. Mathews, J. A. Bright
Experimental Summaries - Plant Research
Trial 87GE21
Effect of plant density on branching, pod setting and yield development of lupins.
Location: Geraldton
To determine the influence of plant density and between-plant variability in vegetative growth on the branching, pod setting and yield development of lupins
Trial 87GE9
Chemicals to control vegetative growth and improve pod set in lupins.
Location: West Binnu
To examine the effect of a number of growth regulating chemicals on the branching, pod setting and yield of lupins under conditions favoring high biomass production.
Trial 87GE19
Chemicals to control vegetative growth and improve pod set in lupins.
Location: Nabawa
To examine the …
Crop Agronomy., S. Porritt
Crop Agronomy., S. Porritt
Experimental Summaries - Plant Research
Seeding machinery for stubble retention in lupin cereal rotations, 85LG21, and 85LG22. Dynamic Lifter (cereal mix) fertiliser evaluation, 86LG2. Cultural systems for lupin: wheat rotations on water repellent soils, 87ES2. Stubble retention and Rovral for brownspot control in lupins, 87M66. Straw length Effects on wheat growth on red-brown earths, 87M70. Row spacing and stubble retention effects on wheat growth on red-brown earths, 87M71. Nitrogen fertiliser for wheat production after volunteer pasture or sub clover-based pasture, 87ME73 and 87ME74. Effect of seeding rate and sowing depth on lupin establishment, 87ME75. Time of seeding various wheat varieties, 87WE76.
Wheat Experimental Results, S. P. Loss
Wheat Experimental Results, S. P. Loss
Experimental Summaries - Plant Research
The development of wheat relative to frost susceptibility, 87NA10. Optimum flowering times of wheat, 87NA11 and 87WH8. Grain growth and development of a historical set of wheats.
Long Season Wheat, W. R. Smith, K. Anderson
Long Season Wheat, W. R. Smith, K. Anderson
Experimental Summaries - Plant Research
Agronomy of long season wheats, 87AL9, 87AL10, 87ES3, 87ES4, 87JE2, 87JE3, 87MT8, 87MT9 and 87NA9. Septoria control in long season wheat, 87E4 and 87MT10. Nitrogen response by long season wheat, 87ES5 and 87JE4. Phenology of long season wheats, 87E5 and 87MT11.
Disease And Insect Resistance; Murex Medic Evaluation; Legume Species Phasic Development, D J. Gillespie
Disease And Insect Resistance; Murex Medic Evaluation; Legume Species Phasic Development, D J. Gillespie
Experimental Summaries - Plant Research
A summary of the performance of the control varieties (four replications) is shown in Table 3. A summary of the root rot ratings for some varieties showing a range of root rot susceptibility to all four pathogens is given in Table 4. Plant weights were recorded for all varieties tested against the three pathogens in the Western Australian experiments. Results for 12 of the 60 varieties are shown in Table 5. Murex medic evaluation. 86MT56 (Mount Barker), Gravelly loam pH 5.2 (water). 86NA46 (Darken) Loamy sand pH 5.4 86M037 (Regans Ford) Fine red sand pH 5.8 All sites were established …
Pasture Variety Row Evaluation., Western Australia Department Of Agriculture
Pasture Variety Row Evaluation., Western Australia Department Of Agriculture
Experimental Summaries - Plant Research
Pasture variety row evaluation, 87GE78.