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United States Department of Agriculture

Agricultural Research Service

Research Project: SYSTEMS AND TECHNOLOGIES FOR SUSTAINABLE SITE-SPECIFIC SOIL AND CROP MANAGEMENT

Location: Cropping Systems and Water Quality Research

Title: Fertilizer Input Costs: Perceptions and Strategies

Authors
item Scharf, Peter -
item Massey, Raymond -
item Abendroth, Julie -
item Kitchen, Newell
item Sudduth, Kenneth

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: June 1, 2009
Publication Date: November 1, 2009
Citation: Scharf, P., Massey, R.E., Abendroth, J., Kitchen, N.R., Sudduth, K.A. 2009. Fertilizer Input Costs: Perceptions and Strategies [abstract]. ASA-CSSA-SSSA Annual Conference, November 1-5, 2009, Pittsburgh, Pennsylvania. 09:54818.

Technical Abstract: Surveys of producers attending Extension meetings in February 2009 indicated that their top economic concern is rising fertilizer prices. Two common responses to this concern were to start using precision or variable-rate nutrient application and to start using nutrient placement. Spreadsheets on the economics of these two practices for P and K management were developed. A ‘front page’ with a dial indicator was developed that shows profitability of these practices relative to conventional broadcast management. This ‘front page’ also has a number of inputs that can be modified by the user, including fertilizer and commodity prices. Our analysis suggests that precision P and K management is profitable at current prices if soil test target values are reduced when using this practice (as supported by recent response data). It also suggests that subsurface placement of P and K will rarely be profitable even with low-testing rented land. Precision application of N using crop sensors has been profitable in 55 on-farm demonstrations in Missouri. Judicious use of precision agriculture technologies has the potential to reduce input costs without reducing yield.

Last Modified: 4/18/2014
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