Use new potassium soil test and fertilizer recommendations
Use new potassium soil test and fertilizer recommendations
Date
2003-10-14
Authors
Mallarino, Antonio
Sawyer, John
Sawyer, John
Sawyer, John
Sawyer, John
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Sawyer, John
Person
Research Projects
Organizational Units
Journal Issue
Series
Department
Abstract
Iowa State University (ISU) potassium (K) soil-test interpretations and fertilizer recommendations were updated in November 2002. These recommendations are contained in publication A General Guide for Crop Nutrient and Limestone Recommendations in Iowa (PM 1688), which is available at through any Iowa State University Extension office or at http://www.extension.iastate.edu/pubs. Major changes included new soil-test K interpretations for all crops and K fertilizer placement recommendations for corn and soybeans grown with no-till and ridge-till systems.