Effect of water-table management practices on the transport of nitrate-N to shallow groundwater

Prasanta Kumar Kalita, R. S. Kanwar

Research output: Contribution to journalArticlepeer-review

Abstract

Concentration of NO3-N in groundwater changed with water-table management (WTM) practices. The lowest NO3-N concentrations were observed under the shallow water-table depths. NO3-N concentrations in groundwater generally decreased with increased depths and time during the growing season under all WTM practices. Crop yields were higher under water-table depths of 0.6 to 0.9 m than under other water-table depths, and corn yields decreased under shallow water-table depths of 0.2 to 0.3 m. Results of this study indicate that WTM practices can be used to substantially reduce the concentrations of NO3-N in groundwater. Results also strongly support the need for further research with WTM practices for water quality and crop production. -from Authors

Original languageEnglish (US)
Pages (from-to)413-422
Number of pages10
JournalTransactions - American Society of Agricultural Engineers: General Edition
Volume36
Issue number2
StatePublished - Jan 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

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