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Effects of broiler litter application on nutrient accumulation in soil

Permanent URL:
http://handle.nal.usda.gov/10113/55054
Abstract:
Excessive nutrient accumulation in soils due to land application of broiler litter is a growing environmental concern. A four-year study was conducted on a Pembroke silt loam soil (Mollic Paleudalf) cropped to orchardgrass (Dactylis glomerata L.) to evaluate accumulation of soil nutrients from broiler litter application. A randomized complete block design with four fertilization treatments was used. Broiler litter was applied at recommended nitrogen rate (L-N), recommended phosphorus rate (L-P), recommended phosphorus rate supplemented with inorganic nitrogen (L-P+N) and inorganic fertilizer with no litter application (Inorg). The L-P, L-P+N, and Inorg treatments did not cause an increase in soil nutrient accumulation while L-N increased soil phosphorus, copper, and zinc by five-fold compared to values at initiation of this experiment. Maximum and minimum orchardgrass yields were observed with L-N (18,019 kg/ha DM) and L-P treatments (7189 kg/ha DM). According to our findings, applying broiler litter at the recommended phosphorus rate and supplementing with inorganic nitrogen may be an environmentally sustainable broiler litter management practice.
Author(s):
Gilfillen, Rebecca A , Rowland, Naomi S. , Willian, William T. , Sleugh, Byron B. , Tekeste, Mehari Z. , Sistani, Karamat R.
Subject(s):
Dactylis glomerata , copper , crop yield , fertilizer rates , land application , mineral fertilizers , nitrogen , phosphorus , poultry manure , silt loam soils , soil amendments , soil fertility , soil nutrients , zinc
Note:
Includes references
Source:
Forage and grazinglands 2010
Language:
English
Year:
2010
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
File:
Download [PDF File]
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.