Citation

Implementing Adaptive Management of Nitrogen in Iowa Corn Fields

Abstract | Word Stems | Keywords | Association | Citation | Get this Document | Similar Titles



Abstract:

With the high cost of nitrogen (N) fertilizer and increased environmental and regulatory pressure, there is an urgent need to - improve current N management practices for corn production in the US Corn Belt. In 2007, more than 120 on-farm trials were conducted in Iowa to evaluate corn N management practices using guided stalk nitrate sampling and remote sensing. The trials were conducted on fields where corn was planted after soybean or corn. Two N treatments (different N rates, fertilizer forms, timing, and manure types) were applied in three or more replicated strips across the fields. Grain yields were measured by combines with yield monitors and GPS. Corn stalk samples for nitrate testing were collected using georeferenced aerial images of the corn canopy taken in late August. Samples were collected from 18 areas in each field to characterize spatial variability in stalk nitrate and soil nitrogen supply power within the fields. Results showed that magnitude of yield response to the treatments and spatial variability in corn stalk nitrate test results were affected by the amount of spring rainfall, spatial variability in losses of N fertilizer within the fields, and by timing and form of N fertilizer applied. Using precision agriculture technologies to collect evaluation data can help target improved N management practices on - fields, farms and across regions. The results of the evaluation data can be used by growers, consultants and agencies to adapt nutrient management practices and programs.
Convention
All Academic Convention can solve the abstract management needs for any association's annual meeting.
Submission - Custom fields, multiple submission types, tracks, audio visual, multiple upload formats, automatic conversion to pdf.Review - Peer Review, Bulk reviewer assignment, bulk emails, ranking, z-score statistics, and multiple worksheets!
Reports - Many standard and custom reports generated while you wait. Print programs with participant indexes, event grids, and more!Scheduling - Flexible and convenient grid scheduling within rooms and buildings. Conflict checking and advanced filtering.
Communication - Bulk email tools to help your administrators send reminders and responses. Use form letters, a message center, and much more!Management - Search tools, duplicate people management, editing tools, submission transfers, many tools to manage a variety of conference management headaches!
Click here for more information.

Association:
Name: SOIL AND WATER CONSERVATION SOCIETY
URL:
http://www.swcs.org


Citation:
URL: http://citation.allacademic.com/meta/p235572_index.html
Direct Link:
HTML Code:

MLA Citation:

Blackmer, Tracy. and Kyveryga, Peter. "Implementing Adaptive Management of Nitrogen in Iowa Corn Fields" Paper presented at the annual meeting of the SOIL AND WATER CONSERVATION SOCIETY, TBA, Tucson, Arizona, Jul 26, 2008 <Not Available>. 2013-12-14 <http://citation.allacademic.com/meta/p235572_index.html>

APA Citation:

Blackmer, T. and Kyveryga, P. M. , 2008-07-26 "Implementing Adaptive Management of Nitrogen in Iowa Corn Fields" Paper presented at the annual meeting of the SOIL AND WATER CONSERVATION SOCIETY, TBA, Tucson, Arizona <Not Available>. 2013-12-14 from http://citation.allacademic.com/meta/p235572_index.html

Publication Type: Oral Presentation
Abstract: With the high cost of nitrogen (N) fertilizer and increased environmental and regulatory pressure, there is an urgent need to - improve current N management practices for corn production in the US Corn Belt. In 2007, more than 120 on-farm trials were conducted in Iowa to evaluate corn N management practices using guided stalk nitrate sampling and remote sensing. The trials were conducted on fields where corn was planted after soybean or corn. Two N treatments (different N rates, fertilizer forms, timing, and manure types) were applied in three or more replicated strips across the fields. Grain yields were measured by combines with yield monitors and GPS. Corn stalk samples for nitrate testing were collected using georeferenced aerial images of the corn canopy taken in late August. Samples were collected from 18 areas in each field to characterize spatial variability in stalk nitrate and soil nitrogen supply power within the fields. Results showed that magnitude of yield response to the treatments and spatial variability in corn stalk nitrate test results were affected by the amount of spring rainfall, spatial variability in losses of N fertilizer within the fields, and by timing and form of N fertilizer applied. Using precision agriculture technologies to collect evaluation data can help target improved N management practices on - fields, farms and across regions. The results of the evaluation data can be used by growers, consultants and agencies to adapt nutrient management practices and programs.

Get this Document:

Find this citation or document at one or all of these locations below. The links below may have the citation or the entire document for free or you may purchase access to the document. Clicking on these links will change the site you're on and empty your shopping cart.

Associated Document Available SOIL AND WATER CONSERVATION SOCIETY
Associated Document Available Access Fee All Academic Inc.


Similar Titles:
Improving Nitrogen Use Efficiency with Sidedressed Fertilizer Nitrogen on Farmer’s Corn Fields

Applying Adaptive Management to Nitrogen Fertilization on Iowa Corn Fields

Growers Learn about Adaptive Nitrogen Management Practices for Corn in Iowa


 
All Academic, Inc. is your premier source for research and conference management. Visit our website, www.allacademic.com, to see how we can help you today.