Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

Iowa State University

Agriculture and Environment Extension Publications

Soil Science

Articles 1 - 4 of 4

Full-Text Articles in Entire DC Network

Resource Conservation Practices: Tillage, Manure Management, And Water Quality, Mahdi Al-Kaisi, Mark A. Licht Apr 2005

Resource Conservation Practices: Tillage, Manure Management, And Water Quality, Mahdi Al-Kaisi, Mark A. Licht

Agriculture and Environment Extension Publications

Tillage and manure application practices significantly impact surface and ground water quality in Iowa. Learn how tillage and manure management affect soil erosion and considerations for nitrogen and phosphorus use.


Resource Conservation Practices: Tillage Management And Soil Organic Matter, Mahdi Al-Kaisi, Mark A. Licht Apr 2005

Resource Conservation Practices: Tillage Management And Soil Organic Matter, Mahdi Al-Kaisi, Mark A. Licht

Agriculture and Environment Extension Publications

It has been well documented that increased tillage can reduce soil organic matter in topsoil. Learn what soil organic matter is; the importance of surface residue, tillage effect, and quality conservation systems; and the benefits of organic matter for improving soil quality.


Agricultural Phosphorus Management And Water Quality Protection In The Midwest, Charles Wortmann, Matthew J. Helmers, Antonio P. Mallarino, Charles Barden, Daniel Devlin, Gary Pierzynski, John Lory, Ray Massey, John Holz, Charles Shapiro, John L. Kovar Jan 2005

Agricultural Phosphorus Management And Water Quality Protection In The Midwest, Charles Wortmann, Matthew J. Helmers, Antonio P. Mallarino, Charles Barden, Daniel Devlin, Gary Pierzynski, John Lory, Ray Massey, John Holz, Charles Shapiro, John L. Kovar

Agriculture and Environment Extension Publications

For nutrient management planners -- to understand the risk of phosphorus in surface waters and to manage this risk. Targeted for Iowa, Kansas, Missouri, and Nebraska.


Resource Conservation Practices: Understanding And Managing Soil Compaction, H. Mark Hanna, Mahdi Al-Kaisi Mar 2002

Resource Conservation Practices: Understanding And Managing Soil Compaction, H. Mark Hanna, Mahdi Al-Kaisi

Agriculture and Environment Extension Publications

Excessively compacted soil can result in many problems including a reduced yield and an increase in horsepower and fuel necessary for tillage. Learn more about this problem as well as ways to reduce soil compaction.