Agricultural and Biosystems Engineering Publications

Document Type

Article

Publication Version

Published Version

Publication Date

1984

Journal or Book Title

Transactions of the ASAE

Volume

27

Issue

5

First Page

1396

Last Page

1399

Research Focus Area(s)

Land and Water Resources Engineering

DOI

10.13031/2013.32977

Abstract

A computer simulation model was used to estimate the impact of different fertilizer management practices for continuous corn production on the loss of nitrate-nitrogen with tile drainage water. Simulations using historical weather data were conducted for seven consecutive growing seasons for a location in Iowa. Currently, nitrogen management by most farmers in Iowa can be represented by a single application (usually NH3-N) of about 150 kg/ha. Management schemes tested to improve the efficiency of nitrogen use include fertilizer application rates, and timing and the number of applications. Model results indicate that lower application rates and multiple applications significantly decrease nitrate-nitrogen losses in both wet and dry years.

Comments

This article was published in Transactions of the ASAE 27 (1984): 1396–1399, doi:10.13031/2013.32977. Posted with permission.

Copyright Owner

American Society of Agricultural and Biological Engineers

Language

en

File Format

application/pdf

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