Crop Response to Tank Truck Application of Liquid Sludge

Liquid digested wastewater sludge was applied by tank truck to established alfalfa crops and to land that was subsequently planted with corn or sorghum-sudan. Liquid sludge and commerical fertilizer produced equivalent yields for the first crop planted when the sludge was applied at rates of 5 cm/yr...

Full description

Saved in:
Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1976-09, Vol.48 (9), p.2190-2197
Main Authors: Kelling, K. A., Walsh, L. M., Peterson, A. E.
Format: Article
Language:English
Subjects:
Agricultural soils
Alfalfa
Corn
Fertilizers
Liquids
Sewage sludge
Sludge
Sludge treatment
Stover
Tank trucks
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Liquid digested wastewater sludge was applied by tank truck to established alfalfa crops and to land that was subsequently planted with corn or sorghum-sudan. Liquid sludge and commerical fertilizer produced equivalent yields for the first crop planted when the sludge was applied at rates of 5 cm/yr or more for sorghum-sudan and 10 cm/yr or more for corn. Yields following fertilizer treatment could not be distinguished from the untreated control for the second crop, whereas crops receiving more than 5 cm of sludge continued to show improved yields. When sludge or water was spread by tank truck on established alfalfa, crown survival and yield were markedly reduced by the truck traffic. Total recovery of nitrogen and phosphorus from the sludge by the two crops of corn and sorghum-sudan were less than 13 percent for nitrogen and less than 7 percent for phosphorus.
ISSN:0043-1303