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  • All fields: nitrogen
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    • Watershed based plan for the Illinois River Watershed

    • Watershed management--Illinois River Watershed (Ark. and Okla.); Watershed management--Arkansas.; Watershed management--Oklahoma.; Watershed restoration--Illinois River Watershed (Ark. and Okla.); Watershed restoration--Arkansas.; Watershed...
    • The Illinois River watershed spans the Oklahoma-Arkansas border in the northeastern part of the state and is located in Benton, Washington, and Crawford Counties in Arkansas and Delaware, Adair, Cherokee, and Sequoyah Counties in Oklahoma.; This...
    • Lake Thunderbird water quality.

    • Water quality--Oklahoma--Thunderbird, Lake--Periodicals.; Thunderbird, Lake (Okla.)--Periodicals.;
    • Lake Thunderbird was constructed by the Bureau of Reclamation and began operation in 1966. Designated uses of the dam and the impounded water are flood control, municipal water supply, recreation, and fish and wildlife propagation. As a municipal...
    • Development of a probability survey design for lakes & reservoirs : final report.

    • Water quality--Oklahoma.; Water quality--Oklahoma--Measurement--Planning.; Lakes--Monitoring--Oklahoma.; Environmental impact analysis--Oklahoma.
    • This probability based survey collected samples representing lakes, ponds and reservoirs 10 acres in Oklahoma. The Oklahoma State Lakes Survey (OSLS) represents the first time 100 percent of the state’s lakes have been assessed in any fashion.
    • Blue Thumb volunteer data interpretations

    • Stream conservation--Oklahoma.; Water quality--Oklahoma.; Stream ecology--Oklahoma.
    • For volunteers who want to know more, Blue Thumb holds data interpretation sessions to help volunteers understand the results of their monitoring efforts. When volunteers anlayze the data they have collected, interpret it, and then write about it,...
    • Lake Thunderbird algae and water quality 2002 : final report.

    • Algae--Oklahoma--Thunderbird, Lake.; Water quality--Oklahoma--Thunderbird, Lake.
    • Chlorophyll-a content, the commonly accepted measure of algae content, was the lowest in three years of monitoring by the OWRB and well below the goal set in 2000 by the COMCD and municipalities. Although impressive, Lake Thunder continues to be...
    • Water quality primer

    • Water quality--Oklahoma.; Water--Pollution--Oklahoma.
    • This booklet is an introduction to water resources and pollution ecology. Many people feel that water pollution is an issue, but they do not necessarily know why various pollutants are a problem.; The 'Water Quality Primer' provides basic,...
    • Quality assurance project plan for hydrodynamic and water quality modeling for Lake Thunderbird...

    • Hydrology--Oklahoma--Thunderbird, Lake, Reservoir--Computer simulation--Planning.; Water quality management--Oklahoma--Thunderbird, Lake, Reservoir--Computer simulation--Planning.; Thunderbird, Lake, Reservoir (Okla.); Water quality--Mathematical...
    • Instead of the typical TMDL study that is usually developed to address water quality issues in impaired waters, the Oklahoma DEQ will develop a watershed-based management plan. An important component of the watershed plan will be the identification...
    • Research highlights.

    • Agriculture--Research--Oklahoma--Periodicals.
    • The OCES continues to strive to disseminate the research information generated by OAES to the public through field days, workshops, tours, and demonstrations. This has been and will continue to be a major focus of our efforts at the Oklahoma...
    • Oklahoma statewide water quality trends analysis

    • Water quality--Oklahoma.;
    • It is imperative that the decisions made about Oklahoma’s water resources use all available information to accurately characterize and assess the quality and quantity of our waters. With that in mind, the water quality trend study has integrated...
    • Watershed based plan for the Fort Cobb Watershed

    • Watershed management--Oklahoma--Fort Cobb Reservoir Watershed--Planning.; Watershed restoration--Oklahoma--Fort Cobb Reservoir Watershed--Planning.; Water quality management--Oklahoma--Fort Cobb Reservoir Watershed--Planning.; Fort Cobb Reservoir...
    • The Fort Cobb Watershed covers 314 square miles in southwestern Oklahoma in Caddo, Washita, and Custer Counties. Ft. Cobb Reservoir’s designated beneficial uses include public and private water supply, warm water aquatic community, agriculture,...
    • Oklahoma's Nonpoint Source Program annual report

    • Nonpoint source pollution--Oklahoma--Periodicals.;Water quality--Oklahoma--Periodicals.
    • The Oklahoma Nonpoint Source (NPS) Program is a combination of federal, state, and local agencies collaborating to identify and reduce nonpoint source pollution in Oklahoma's waters. NPS pollutants come from a variety of sources including homes,...
    • Water quality in Oklahoma : integrated report.

    • Water--Pollution--Oklahoma--Statistics.;Water quality management--Oklahoma.
    • "Prepared pursuant to Section 303(d) and Section 305(b) of the Clean Water Act.";"The regulations implementing Section 303(d) require states to develop lists of water bodies that do not meet water quality standards and to submit updated lists to...
    • Watershed based plan for the Lake Thunderbird watershed

    • Watershed management--Oklahoma--Thunderbird, Lake, Watershed--Planning.; Watershed restoration--Oklahoma--Thunderbird, Lake, Watershed--Planning.; Water quality management--Oklahoma--Thunderbird, Lake, Watershed--Planning.; Watershed...
    • Lake Thunderbird, located in central Oklahoma, is a popular recreational lake as well as a water supply reservoir for the cities of Norman, Del City, and Midwest City, which have a combined population of approximately 178,000. Significant taste and...
    • The Oklahoma bar journal

    • Law--Periodicals--Oklahoma.;Bar associations--Oklahoma--Periodicals.;Law reports, digests, etc.--Oklahoma.
    • The Oklahoma Bar Journal is a publication of the Oklahoma Bar Association.
    • Muskogee Generating Station best available retrofit control technology evaluation

    • Coal-fired powerplants--Environmental aspects--Oklahoma--Muskogee.; Air quality management--Oklahoma--Economic aspect.; Air--Pollution--Oklahoma--Prevention.; Air--Pollution--Oklahoma--Mathematical models.; Coal-fired power plants--Fume...
    • On July 6, 2005, the U.S. Environmental Protection Agency (EPA) published the final “Regional Haze Regulations and Guidelines for Best Available Retrofit Technology Determinations” (the “Regional Haze Rule” 70 FR 39104).; The Regional Haze...
    • Lake Thunderbird algae 2003 : final report.

    • Algae--Oklahoma--Thunderbird, Lake.; Thunderbird, Lake (Okla.);
    • Algae have long been known to cause water quality problems in many municipal water systems. From the available data, Lake Thunderbird contains algae with the potential to produce taste and odor (T&O) and toxin chemicals
    • Estimating watershed level nonpoint source loading for the state of Oklahoma

    • Nonpoint source pollution--Oklahoma--Computer simulation.;Nitrogen cycle--Oklahoma.;Phosphorus cycle (Biogeochemistry)--Oklahoma.;Nutrient cycles--Oklahoma.;Nitrogen in agriculture--Oklahoma--Statistics.;Phosphorus in...
    • Using state-wide coverages of digital elevation, soils, land use/cover data, along with county information including livestock inventories, commercial fertilizers, soil test phosphorus results, weather and reservoir data, models were constructed to...
    • Panhandle watershed planning region

    • Water resources development--Government policy--Oklahoma.; Water-supply--Oklahoma--Management.
    • The Panhandle Watershed Planning Region includes six basins (numbered 52-55 and 65-66 for reference). The region encompasses 9,426 square miles in northwest Oklahoma, spanning from the Panhandle counties of Cimarron, Texas, and Beaver, and...
    • "Current" news from the North Canadian River 319 Project.

    • North Canadian River Watershed (Okla.)--Periodicals.; Water quality--Oklahoma--North Canadian River Watershed--Periodicals.; Oklahoma Conservation Commission--Periodicals.
    • our quarterly newsletter. In it, we will provide updates on the progress of the project, information on any workshops we schedule, items of interest, and management tips.; The purpose of the N. Canadian river 319 Project is to reduce pathogens and...
    • Mesonet connection, 10/2013, v.4 no.10

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    • Nitrogen Key to Better Yield by Stephanie Bowen; Degree Day Counter; New Rainfall Maps; Drought Outlook; iPhone App Updates; Continual Growth by Stephanie Bowen; Summer returns during September, Brings Tase of Fall by Gary McManus;
    • Oklahoma toxic release inventory : report

    • Hazardous wastes--Oklahoma--Periodicals.
    • TRI is part of the federal Emergency Planning and Community Right to Know Act (EPCRA) and is administered by the U.S. Environmental Protection Agency (EPA). The law requires covered facilities in Oklahoma to submit annual reports to the Oklahoma...
    • Arkansas TAG members' minority report to OWRB

    • Water quality management--Oklahoma.; Water--Phosphorus content--Illinois River Watershed (Ark. and Okla.)--Measurement--Planning.; Water--Phosphorus content--Government policy--Oklahoma.; Illinois River Watershed (Ark. and Okla.);
    • Executive Summary As required in the 2003 Statement of Joint Principles and Actions, in concert with an EPA grant, as well as Oklahoma’s review of the Oklahoma Water Quality Standards (“OWQS”), staff of the Oklahoma Water Resources Board...
    • A practical guide to food plots in the southern Great Plains

    • Wildlife habitat improvement--Handbooks, manuals, etc.; White-tailed deer--Food--Handbooks, manuals, etc.; Wildlife attracting--Handbooks, manuals, etc.
    • Many landowners wish to understand the role of food plots in wildlife man­agement. Therefore, we created this guide to provide basic ecology for select game species, as well as science-based and realistic information on how food plots may relate.;...
    • Land judging in Oklahoma

    • Soils--Oklahoma--Quality.; Land use--Judging--Oklahoma.; Land capacity for agriculture--Judging--Oklahoma.
    • Judging Land Land judging is a recently added judging event in the field of agriculture. Land can be judged much like animals or crops. In judging crops, we look at the size, shape, and quality and determine which is the best. Similarly, when...

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