Agricultural and Biosystems Engineering Publications

Document Type

Article

Publication Version

Published Version

Publication Date

1988

Journal or Book Title

Transactions of the ASAE

Volume

31

Issue

5

First Page

1423

Last Page

1429

DOI

10.13031/2013.30879

Abstract

Field data on water-table depths, plant parameters, and corn yields were collected for 3 years (1984 through 1986) on the Clarion-Nicollet-Webster Soil Association from 50 plots under naturally fluctuating water-table conditions. The stress-day factor (SEW30) and stress-day index (SDI) concepts were used to provide a quantitative means of determining drainage needs of soils. Corn yield and SDI were used to assess the crop production losses due to excessive wetness in the soils. The stress-day factor and index were found to be useful tools in evaluation of drainage needs of poorly drained soils. The highest values of SEW30 and SDI were obtained for naturally very poorly drained soils, while naturally well-drained soils gave about zero values of SDI. Significant differences were found in SEW30 and SDI between all natural drainage classes of soils. This study also showed a strong relationship between relative yield and SDI for corn. This relationship was compared with published data from three other sources -India, North Carolina, and Ohio and found to be in agreement. The information in this paper on transient waterlogging's effect on crop growth under different natural soil drainage regimes should provide a basis for improving the design of field drainage systems.

Comments

This article was published in Transactions of the ASAE 31 (1988): 1423–1429, doi:10.13031/2013.30879. Posted with permission.

Access

Open

Copyright Owner

American Society of Agricultural and Biological Engineers

Language

en

File Format

application/pdf