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Agronomy Journal Abstract - WASTE MANAGEMENT

Soil Properties as Influenced by Phosphorus- and Nitrogen-Based Manure and Compost Applications


This article in AJ

  1. Vol. 94 No. 1, p. 128-135
    Received: Mar 29, 2001

    * Corresponding author(s): beghball1@unl.edu
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  1. Bahman Eghball *
  1. USDA-ARS, Dep. of Agron. and Hortic., Univ. of Nebraska-Lincoln, Lincoln, NE 68583


Manure or compost application based on N needs of corn (Zea mays L.) may result in soil accumulation of P, N, and other ions, since the manure or compost N/P ratio is usually smaller than the corn N/P uptake ratio. This study was conducted from 1992 to 1996 to evaluate the effects of annual or biennial application of N- and P-based composted and noncomposted beef cattle (Bos taurus) feedlot manure on soil properties. Fertilized and unfertilized checks were also included. Soil surface (0–15 cm) pH significantly increased with N-based manure (MN) or compost application (CN), but decreased with NH4–N fertilizer application as compared with the check. Soil bulk density was unaffected by manure or compost application. After 4 yr of manure and compost applications, soil surface (0–15 cm) C and N concentrations and quantities were greater for N- than P-based management systems. About 25% of applied manure C and 36% of applied compost C remained in the soil after 4 yr of application, indicating greater C sequestration with composted than noncomposted manure. No significant difference was observed between fertilizer and check plots for soil total C or N. Soil properties in the 15- to 30-cm increment were unaffected by the applied treatments except soil electrical conductivity (EC). Residual soil NO3 to a depth of 1.2 m was greater for inorganic fertilizer than manure and compost treatments in drier years. Soil property changes were greater for the annual or biennial N-based than P-based manure or compost applications, reflecting the differences in application amounts.

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Copyright © 2002. American Society of AgronomyPublished in Agron. J.94:128–135.