Evaluation of the Efficiency of Aglime
and Pelleted Aglime in a Southeast Iowa Acid Soil

Mallarino, Antonio; Haq, Mazhar; Rees, Myron

Evaluation of the Efficiency of Aglime and Pelleted Aglime in a Southeast Iowa Acid Soil

File

EvaluationEfficiencySE.pdf (290.38 KB)

Date

2017-01-01

Authors

Mallarino, Antonio

Haq, Mazhar

Rees, Myron

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Organizational Units

Organizational Unit

Extension and Experiment Station Publications

It can be very challenging to locate information about individual ISU Extension publications via the library website. Quick Search will list the name of the series, but it will not list individual publications within each series. The Parks Library Reference Collection has a List of Current Series, Serial Publications (Series Publications of Agricultural Experiment Station and Cooperative Extension Service), published as of March 2004. It lists each publication from 1888-2004 (by title and publication number - and in some cases it will show an author name).

Organizational Unit

Agronomy

The Department of Agronomy seeks to teach the study of the farm-field, its crops, and its science and management. It originally consisted of three sub-departments to do this: Soils, Farm-Crops, and Agricultural Engineering (which became its own department in 1907). Today, the department teaches crop sciences and breeding, soil sciences, meteorology, agroecology, and biotechnology.

History
The Department of Agronomy was formed in 1902. From 1917 to 1935 it was known as the Department of Farm Crops and Soils.

Dates of Existence
1902–present

Historical Names

Department of Farm Crops and Soils (1917–1935)

Related Units

College of Agriculture and Life Sciences (parent college)

Journal Issue

2016 Farm Progress Reports

Department

Extension and Experiment Station PublicationsAgronomy

Abstract

The capacity of a liming material for neutralizing soil acidity depends mainly on its calcium carbonate (CaCO3) equivalent (CCE) and its fineness. The Iowa Department of Agriculture and Land Stewardship (IDALS) rules for agricultural lime (aglime) sales requires measuring Effective CCE (ECCE), which combines CCE and fineness efficiency estimates. Use of pelleted finely ground limestone has increased in recent years, but scarce field research has evaluated how ECCE evaluates the granulation effect on its acid-neutralizing capacity and its efficiency compared with aglime. Therefore, a study was conducted at this farm in 2015 and 2016 to evaluate the effectiveness of calcitic aglime and pelleted calcitic aglime at increasing soil pH and crop yield compared with finely ground pure calcium carbonate (CaCO3).