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This article in SSSAJ

  1. Vol. 18 No. 1, p. 72-76
     
    Received: Feb 7, 1953


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doi:10.2136/sssaj1954.03615995001800010018x

Changes in Drainage Properties of a Muck Soil as a Result of Drainage Practices1

  1. H. A. Jongedyk,
  2. R. B. Hickok and
  3. I. D. Mayer2

Abstract

Abstract

Investigations of physical properties of muck soils using core samples, field observations of structure, and draw-down studies, showed that the drainage characteristics of organic soils may be changed as a result of drainage practices. Studies were conducted on tiled drainage plots at the Northern Indiana Muck Experiment Farm at Walkerton, Ind. Average water table depths of 1.3 feet, 2.1 feet, and 3.3 feet were maintained from 1944 through 1950.

Significant changes have occurred in depth of soil, horizontal and vertical permeability rates, pore space distribution, and soil structural characteristics in the soil of the deeper drained plots (2.1 feet to 3.3 feet deep water tables) compared with shallow drained plots which may be considered as checks. Soils with very high permeability rates and desirable structural characteristics, favorable to crop growth and easy water control, exist on plot areas which had the deeper water tables. High water table plots have had more peaty muck soil with blocky, spongy structure and low effective permeability rates. Increased decomposition of soil, root growth, and earthworm activity occurred with lower water tables.

Some practical aspects of the changes in soil properties are presented.

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