Corn and Soybean Grain Yield Response
to Different Phosphorus Fertilization Rates
and Soil-Test Phosphorus Levels

Mallarino, Antonio; Jones, John; Thompson, Louis; Pecinovsky, Kenneth

Corn and Soybean Grain Yield Response to Different Phosphorus Fertilization Rates and Soil-Test Phosphorus Levels

File

CornSoybeanPhosphorous.pdf (53.28 KB)

Date

2018-01-01

Authors

Mallarino, Antonio

Jones, John

Thompson, Louis

Pecinovsky, Kenneth

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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

2017 Farm Progress Reports

Department

Extension and Experiment Station PublicationsAgronomy

Abstract

Phosphorus (P) fertilization is needed for profitable crop production in most Iowa soils. Extensive research has been conducted for decades on crop yield response to P and calibration of soil-test P methods. Frequent changes in crop genotypes and increasing yield levels necessitates continuous research to revise and update management guidelines as needed. This report summarizes results of a multi-year experiment conducted to evaluate corn and soybean grain yield response to different P fertilization rates and soil-test P levels.