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This article in SSSAJ

  1. Vol. 49 No. 1, p. 108-113
     
    Received: Aug 22, 1983
    Accepted: Sept 10, 1984


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doi:10.2136/sssaj1985.03615995004900010022x

Morphological, Physical and Chemical Properties of Major Soils from Calagua in Northwestern Uruguay1

  1. M. A. Lugo-López,
  2. Juan P. Carnelli and
  3. G. Acevedo2

Abstract

Abstract

Vertisols, Alfisols, and Mollisols were identified in a soil survey of the area of Calagua in northwestern Uruguay. They are generally deep, dark-colored, with well-developed structure, high in CEC and base saturation, and can hold and supply sufficient amounts of water and nutrients for crops. Most are developed from clay sediments derived from basalt or quaternary mudstones. Most pH values of the surface layers are around 6.0 indicating no apparent danger from either exchangeable aluminum or excess of carbonates. Potassium and phosphorus levels are strikingly low. The soils of Calagua appear to have a great potential for field crops such as rice, sugarcane, and sorghum as well as for horticultural crops such as tomatoes, melons and cabbage. Any program geared to improve crop production in the area must provide for efficient irrigation techniques at critical growth periods, drainage, and the rational use of nitrogen, phosphorus and potassium fertilizers.

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