Tile Drainage Management Influences on Surface‐Water and Groundwater Quality following Liquid Manure Application
This study investigated the potential for controlled tile drainage (CD) to reduce bacteria and nutrient loading to surface water and groundwater from fall‐season liquid manure application (LMA) on four macroporous clay loam plots, of which two had CD and two had free‐draining (FD) tiles. Rhodamine W...
Saved in:
| Published in: | Journal of environmental quality Vol. 42; no. 3; pp. 881 - 892 |
|---|---|
| Main Authors: | , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
United States
The American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc
01-05-2013
|
| Subjects: | |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study investigated the potential for controlled tile drainage (CD) to reduce bacteria and nutrient loading to surface water and groundwater from fall‐season liquid manure application (LMA) on four macroporous clay loam plots, of which two had CD and two had free‐draining (FD) tiles. Rhodamine WT (RWT) was mixed into the manure and monitored in the tile water and groundwater following LMA. Tile water and groundwater quality were influenced by drainage management. Following LMA on the FD plots, RWT, nutrients, and bacteria moved rapidly via tiles to surface water; at the CD plots, tiles did not flow until the first post‐LMA rainfall, so the immediate risk of LMA‐induced contamination of surface water was abated. During the 36‐d monitoring period, flow‐weighted average specific conductance, redox potential, and turbidity, as well as total Kjeldahl N (TKN), total P (TP), NH4–N, reactive P, and RWT concentrations, were higher in the CD tile effluent; however, because of lower tile discharge from the CD plots, there was no significant (P ≤ 0.05) difference in surface water nutrient and RWT loading between the CD and FD plots when all tiles were flowing. The TKN, TP, and RWT concentrations in groundwater also tended to be higher at the CD plots. Bacteria behaved differently than nutrients and RWT, with no significant difference in total coliform, Escherichia coli, fecal coliform, fecal streptococcus, and Clostridium perfringens concentrations between the CD and FD tile effluent; however, for all but C. perfringens, hourly loading was higher from the FD plots. Results indicate that CD has potential for mitigating bacteria movement to surface water. |
|---|---|
| Bibliography: | Assigned to Associate Editor Jan Willem Foppen. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0047-2425 1537-2537 |
| DOI: | 10.2134/jeq2012.0261 |