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Land Disposal of Broiler Litter: Changes in Concentration of Chloride, Nitrate Nitrogen, Total Nitrogen, and Organic Matter in a Cecil Sandy Loam¹

ABSTRACT

Broiler litter at rates of 0, 22.4, 44.8, 89.6, and 134.4 metric tons/ha, was surface applied semiannually for 2 years to established plots of Kentucky-31 tall fescue (Festuca arundinacae Schreb) grown on a Cecil soil. After 2 years almost all the added Cl had moved below 107 cm, although there was increased Cl concentration at the lower soil depths. Nitrate nitrogen in the soil profile increased significantly between rates, but not between years. There was no significant change in total N in the soil after correction for NO₃-N. Organic matter decreased significantly between check and application rates, but not within rates or between years. Rates of 22.4 metric tons/ha applied semiannually were considered excessive from the standpoint of potential losses of a valuable N resource for crop production.

Key Words: poultry manure management • soil nutrient translocation

¹ Contribution from Southern Piedmont Conserv. Res. Center, Watkinsville, GA 30677, Athens, Georgia Area, Southern Reg., ARS, USDA in cooperation with the Univ. of Georgia AES.

² Chemist, Supervisory Soil Scientists, Southern Piedmont Conserv. Res. Center.

Received for publication February 9, 1976.

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