Calibration of lagoon irrigating equipment (1995)

"New/8/95/3.5M.""Water Quality.""Focus area : nutrients and bacterial wastes.""Published by University Extension, University of Missouri-System.

Calibration of lagoon irrigating equipment

ENVIRONMENTAL QUALITYMU GuidePUBLISHED BY MU EXTENSION, UNIVERSITY OF MISSOURI-COLUMBIANutrients and Bacterial WasteCharles Fulhage and Don Pfost, Department of Biological and Agricultural Engineering"A properly calibrated irrigation system can be an efficient and uniform method for land application of liquid nutrients. Application should be done at a time and at a rate so that polluted runoff does not enter the waters of the state. Total nitrogen applied annually must not exceed the design for an approved system. Thus, depth of annual application depends upon the nutrient (nitrogen) analysis of the effluent." -- page 1New 6/00/7M; Reviewed November 201

Design criteria for bottom-withdrawal (lake-cleaning) spillway

"A pond or lake equipped with a bottom-withdrawal spillway will store the highest quality water possible for a reservoir in a given location. This is desirable when the reservoir will provide water for municipalities, livestock, households, fish production, recreation, field or orchard spraying, trickle irrigation, or other uses requiring high quality water."--First page.David Rausch (USDA-ARS, Watershed Research Unit), Don Pfost (Department of Agricultural Engineering, College of Agriculture), and Larry W. Caldwell (USDA, Soil Conservation Service, Columbia, Missouri)New 4/85/10

Operating and maintaining grassed outlet terrace systems

"The proper operation of terrace systems depends on good farming practices and prompt correction of problems. Terraces should be inspected at least anually. Terrace ridge height and shape should be maintained as built. Occasionally, a modification may be required (for example, if you change basic machinery size from 6-row to 8-row)."--First page.Don Pfost (Department of Agricultural Engineering, College of Agriculture), Larry Caldwell (USDA, SOil Conservation Service, Columbia, Missouri)New 9/84/10

No-tillage and reduced-tillage : costs and returns

"Soil conservation and cost control are important considerations in choosing tillage practices. In 1983, the University of Missouri--Columbia published Agricultural Guide G350, 'Conservation tillage : costs and returns,' to provide information regarding those choices. This guide updates that information because conservation tillage technology and other production conditions have changed."--First page.Myron Bennett and David E. Ervin (Department of Agricultural Economics), Don Pfost (Department of Agricultural Engineering), Nyle Wollenhaupt and Gary Hoette (Department of Agronomy, College of Agriculture), and Andrea Clarke (USDA, Soil Conservation Service, Columbia, Missouri)New 10/86/8

No-till checklist (1984)

Zane R. Helsel, Daryl D. Buchholz, Gary Hoette, and L.E. Anderson (Department of Agronomy), Einar Palm (Department of Plant Pathology), George Thomas (Department of Entomology), Don Pfost (Department of Agricultural Engineering, College of Agriculture)New 1/84/10

No-till planting sytsems

"In no-tillage planting systems, a planting is made directly into an essentially unprepared seedbed. Evaluate the economical and practical feasibility if you consider a no-till planting system. You won't always completely eliminate tillage, and your management ability and experience often determine the economic reward."--First page.Zane R. Helsel, Daryl D. Buchholz, Gary Hoette, and L.E. Anderson (Department of Agronomy), Einar Palm (Department of Plant Pathology), George Thomas (Department of Entomology), Don Pfost (Department of Agricultural Engineering, College of Agriculture)New 7/83/10

No-till checklist (1987)

Zane R. Helsel, Daryl D. Buchholz, Gary Hoette, and L.E. Anderson (Department of Agronomy), Einar Palm (Department of Plant Pathology), George Thomas (Department of Entomology), Don Pfost (Department of Agricultural Engineering, College of Agriculture)Revised 10/87/10

Maintaining grassed waterways

"Grassed waterways are commonly used to prevent gullies, where water flowing down a hillside concentrate, or as an outlet for water from terraces. Inspect grassed waterways annually or after unusually large storms. Perform needed maintenance promptly to prevent costly damage to the water."--First page.Don Pfost (Department of Agricultural Engineering, College of Agriculture), Larry Caldwell (USDA, Soil Conservation Service, Columbia, Missouri)New 9/84/10

Maintaining small dams

"Dams are a valuable asset. They usually impound water with little input from the owner, and problems that occur are often minor. Problems can worsen, however, and can become more expensive to repair if not fixed promptly. When a dam needs work, do it as soon as possible. A minor problem can turn into a major reconstruction project or even result in dam failure. This guide describes actions you should take and items you should check to keep your small dams in good repair."--First page.Don Pfost (Department of Agricultural Engineering, College of Agriculture), Hugh A. Curry (USDA, Soil Conservation Service, Columbia, Mo.)New 11/86/8