Premium
The Breakdown of Poultry Manure Aggregates by Rainfall Impact
Author(s) -
Muck R. E.,
Ludington D. C.
Publication year - 1980
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1980.00472425000900010015x
Subject(s) - drop (telecommunication) , manure , environmental science , leaching (pedology) , nitrogen , aggregate (composite) , zoology , agronomy , soil science , chemistry , materials science , soil water , composite material , biology , telecommunications , organic chemistry , computer science
The effects of rainfall intensity, duration, drop velocity, and drop size on poultry manure aggregate breakdown under simulated rainfall were investigated. For a constant drop velocity and size, aggregate breakdown was an exponential function of rainfall amount, while rainfall energy and momentum both explained the aggregate breakdown results well for a constant drop size. Aggregate breakdown appeared to increase with drop size, but the effects were not statistically significant. The leaching of nitrogen and phosphorus from poultry manure was increased by aggregate breakdown. For a 4‐hour, 5.08‐cm/hour simulated rainfall, aggregate breakdown accounted for a 70% increase in leaching losses from the manure.