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Organic Matter Removal from Liquid Peach Waste by Percolation Through Soil and Interrelations with Plant Growth and Soil Properties¹

Peach cannery waste of three concentrations was applied to Cecil sandy clay loam and Lakeland sand in lysimeters on which Coastal bermudagrass was growing. The soil was artificially placed in the lysimeters to simulate subsoiling to a depth of 50.8 cm. The waste was applied at a rate of 2.54 cm/hr with total amounts of 7.62 cm twice a week. No ponding was observed, indicating an infiltration rate of at least 2.54 cm/hr. A total of 82.55 cm of waste was applied during the season. The BOD (biochemical oxygen demand) was reduced 98% by the Cecil and 64% by the Lakeland soil. Yield of the grass decreased somewhat as the waste concentration increased but was larger in all cases than non-irrigated grass. Application of the waste increased the exchangeable sodium in the soil but no appreciable effect on soil structure was found.

Key Words: Cecil sandy clay loam • Lakeland sand • irrigation • aggregation • biochemical oxygen demand

Received for publication December 6, 1967.