Earth Sciences Commons^™

Correlating Soil Test Phosphorus Losses In Runoff, D. H. Pote, T. C. Daniel, P. A. Moore Jr., D. J. Nichols, D. R. Edwards, A. N. Sharpley

Arkansas Water Resources Center Technical Reports

Phosphorus in agricultural runoff is often a major cause of accelerated eutrophication of lakes and streams. Previous research has indicated that the amount of dissolved P (DP) in runoff is directly related to P content of the surface soil. Decades of fertilizer application at rates exceeding those of crop uptake have elevated soil test P (STP) levels in areas of intensive crop and livestock production, making this the major source of DP loss in runoff. The objective of our experiment was to relate STP content of Captina silt loam to P concentration and loss in runoff, and determine which STP …

Building Community Around Water: The Shift From Icon To Substance In The Local Politics Of Water, Donald Snow

Water Organizations in a Changing West (Summer Conference, June 14-16)

11 pages.

Fort Collins And The Cache La Poudre River: An Integrated Greenway Vision, Kari V. Henderson

Water Organizations in a Changing West (Summer Conference, June 14-16)

16 pages.

Contains references.

G93-1191 Glossary Of Water-Related Terms, William L. Kranz, Delynn Hay, James W. Goeke, David Gosselin

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide is a glossary of water quantity, quality and human health related terms involving water. Terms are defined in contexts that could affect Nebraskans. We depend upon water for our very existence. The impact of water quality and quantity issues has never been greater. Yet the terminology used to describe the water we drink, the water we provide to plants and animals, the water stored underground, in lakes, rivers, and oceans, is not well understood by many Nebraskans. This listing of water-related terms is intended to reduce the potential for misunderstanding presentations made by elected officials, environmental agencies and …

Determination Of Optimal Timing Of Poultry Waste Disposal By Meteorological, Hydrological, And Water Quality Modeling Techniques, D. R. Edwards, T. C. Daniel

Arkansas Water Resources Center Technical Reports

Approximately one million Mg of broiler litter were generated in conjunction with Arkansas' 1989 broiler production. Common practices for disposal of the waste have the potential to damage the quality of downstream rivers and lakes. This possibility is enhanced due to the concentration of broiler production in areas of the state with shallow soils, steep slopes, and limited suitable disposal area. Since the risk of pollution is greatest immediately following disposal and increases with rainfall depth and intensity, adverse water quality impacts may be mitigated by timing the application to coincide with low probability of surface losses of the nutrients …

The Relationship Between Soil Properties And No-Tillage Agriculture, Robert L. Blevins

Soil Science News and Views

I am highly honored to be invited to present the 3rd annual S.H. Phillips Distinguished Lecture on No-Tillage Agriculture. My interest and subsequent research efforts in the area of no-tillage agriculture began in 1969. Shirley Phillips encouraged my efforts through his interest and enthusiasm for this rather radical and new approach to farming without the use of tillage equipment. At that time, Harry Young, a western Kentucky farmer and pioneer of no-tillage agriculture along with Shirley, Jim Herron, Charlie Slack and other co-workers were excited about the potential of this new, innovative farming system and what it could do for …

Agenda: Moving The West's Water To New Uses: Winners And Losers, University Of Colorado Boulder. Natural Resources Law Center

Moving the West's Water to New Uses: Winners and Losers (Summer Conference, June 6-8)

Conference organizers and/or faculty included University of Colorado Law School professors Lawrence J. MacDonnell and Mark Squillace.

Moving the West's Water to New Uses: Winners and Losers will be the theme for this year's water conference, June 6-8 at the Law School in Boulder. The conference will consider the changing demands for water in the West and the need to reallocate a portion of the existing uses of water to new uses.

The first day will provide the background by looking at the most likely sources of water to meet these demands, including agriculture, federal water projects, interstate transfers, and …

Land Resources In The Northern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia Map, Dennis Van Gool

Land resources series

Land Resources Map and Land Capability table for the northern section of the Peel-Harvey catchment. Prepared to assist nutrient management and land use planning in the southern section of the Peel-Harvey catchment.

A Guide To The Practical Use Of Aerial Color-Infrared Photography In Agriculture, Donald C. Rundquist, Scott A. Samson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Water Conservation Through Integrated Basinwide Implementation, Steven J. Shupe

Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)

12 pages.

Agenda: Western Water: Expanding Uses/Finite Supplies, University Of Colorado Boulder. Natural Resources Law Center

Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)

Conference organizers and/or faculty included University of Colorado School of Law professors James N. Corbridge, Jr., Lawrence J. MacDonnell and David H. Getches.

This conference featured luncheon talks by Colorado Governor Richard D. Lamm and Undersecretary of the Department of the Interior Ann McLaughlin. The conference attracted 115 registrants from 19 states plus the District of Columbia.

Potential Improvements In Irrigation Management Practices: Water Savings And Costs, James R. Gilley

Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)

26 pages.

Meeting Colorado’S Water Requirements: An Overview Of The Issues, David H. Getches

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

43 pages (includes tables and map).

Includes 3 pages of footnotes.

Groundwater And Intergovernmental Relations In The Southern San Joaquin Valley, California, Sally K. Fairfax, Barbara T. Andrews

Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)

25 pages (includes maps).

Bulletin 3929 - Irrigation In Western Australia, K S. Cole

Bulletins - 3000 - 3999

Irrigation is essential in many parts of the world to produce essential food and profitable cash crops. Generally, those areas of land with less than 360 mm of rain spread over a distinct wet season of several months cannot grow crops for food or cash on rainfall alone. Then irrigation becomes necessary unless some peculiarity such as an oasis exists.

Agricultural Geology, R. Fenwick

Natural resources published reports

WESTERN AUSTRALIA

Precambrian rocks occupy 1.5 million kn2 or roughly 60% of the total land area of the state, to form one of the most extensive and varied precambrian regions of the world. The oldest rocks are the comparatively little altered sediments and volcanics of the Pilbara Diock whose age must exceed that of the 3 000 million year old granites which intrude then

Western Australia is divisable into two broad geological types. The great plateau or Western or Archean Shield and coastal and inland basins.

The Western Shield is the largest area of Archean (Archeozoic era) rocks in Australia, …

The Oombulgurri Project Clancy Committee Report, D J. Clancy, P Mccosker, C Mayberry, A J. Millington, P Ryan

All other publications

In early August the Oombulgurri community requested assistance in the following terms.

"On behalf of the Oombulgurri Community, we invite assistance in developing the grain and pasture cropping at Oombulgurri. We have experimented with peanuts, sorghum, and many varieties of vegetables. This has tested the reality of hopes to expand acreage and varieties to become self-sufficient in stock feed. The Farm and Garden Guild now needs the expertise of your services to plan a four-year programme. vie need assistance in choosing from the many options, opinions and advices available from Australia and elsewhere, for grain production, pastures, methods appropriate to …

Land Systems Of The Brockman River Catchments, S. Porritt

Natural resources published reports

The survey was conducted to gain basic information about the agricultural land use of the Brockman River Catchment. The University of Western Australia Faculty of Agriculture was interested in the area as a compact, agriculturally diverse area close to Perth which was, therefore, suitable for filed studies. The Department of Agriculture, Moora Office was interested in this study as a framework within which to improve its extension services in the area.

Both parties cooperated in investigations of the area by providing data and equipment. Field work was carried out in summer 1973-74 and data compiled by an agricultural science student …

An Intensive Edaphological Characterization Of The Soils Of Malambito Experimental Station And Its Implications In Future Agricultural Research, William L. Rubink

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Malambito Experiment Station, in the Atlántico III project area, Department of Atlántico, Colombia, had almost no quantitative edaphological data on which to base agricultural research. Unexplainably low general yields as well as problem areas of deficient plant growth only confounded the results of field plot experiments. Intensive soil sampling and subsequent measurements of pH, EC_e of the saturation extract, and the four major cations disproved the previous suggestions that the crop growth problems were related to saline, sodic, or degraded soil conditions. The Ca/Mg+K+Na ratio, although significant when correlated with plant height, was sufficient explanation for only a small …

Bulletin No 3867 - Water For Agriculture. Clearing Cloudy Or Coloured Water, N. E. Platell

Bulletins - 3000 - 3999

THE suspended material in most water supplies is generally clay, although sometimes organic matter and materials precipitated from solution, such as hydrated iron oxides, may be present. Coloured waters are those waters that are still coloured, due to dissolved coloured matter, after suspended material has been removed. Some coloured waters such as those found in swampy areas may be entirely free of suspended material.

The amount of clay or colour present is mainly of concern where the water is used for household purposes. Only rarely is the clay or colour present in such quantities that the water is undrinkable for …

A Review Of Agriculture On The Esperance Downs, J L. Shier, T. C. Dunne, E. N. Fitzpatrick

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

Esperance is approaching a period of rapid development based on the results of research at Esperance Downs Research Station and on farmers' properties in the area.

This article reviews the soils, vegetation, climate, agricultural development and development costs of the area.

Plan Of Development For Valley Gravity Project, Julius A. Krug, Michael W. Straus, Wesley R. Nelson

Lower Rio Grande Valley Curated Material

"The Valley Gravity Project Plan has been formulated to furnish an adequate and dependable irrigation water supply for fertile and productive area in the Lower Rio Grande Valley, Texas, It would also provide drainage works, which would remove the threat of destruction of the economy of the area due to effects of a high water table and salt accumulations. The project works would permit generation of the maximum practicable amount of electrical energy which otherwise would be required to operate irrigation pumping plants. Other incidental benefits include fish and wildlife conservation, recreation and flood control."

Project report no. 5-0619-0

An Outline Of Nebraska's Industries, George E. Condra

George E. Condra Publications

The principal industries of Nebraska are summarized into the following groups: mineral, agriculture, manufacturing, transportation and publishing, and trade or mechandizing.

Influence Of Geological Structure On History In The United States, A. F. Bechdolt

Journal of the Minnesota Academy of Science

No abstract provided.