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This article in AJ

  1. Vol. 63 No. 6, p. 889-892
     
    Received: Apr 17, 1971


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doi:10.2134/agronj1971.00021962006300060020x

Influence of a Root Crop on Physical Properties of a Medium-Textured Soil1

  1. C. J. Gerard and
  2. H. C. Mehta2

Abstract

Abstract

Studies to evaluate the influences of stage of growth of a root crop and two plant densities on certain physical properties of a medium-textured soil were conducted. Dynamic changes with time, depth, and plant population occurred on selected physical properties of medium-textured soils being cropped to fall radishes. After 2 months, radish roots compacted and decreased the permeability of the top 15 cm of soil but had little influence at the 15- to 30-cm depth. However, after 4 months the enlarged radish roots decreased the compactness and increased the permeability of the top 15 cm of soil but compacted the soil at the 15- to 30-cm depth. Field measurements of soil strength described the zone of compaction by radish roots. Compaction by double row radishes was significantly greater than by single-row radishes.

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