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This article in AJ

  1. Vol. 62 No. 6, p. 722-725
     
    Received: Dec 9, 1969


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doi:10.2134/agronj1970.00021962006200060011x

Summer Fallow Soil Water Losses on Intermountain Dryland and Its Effect on Cropping Winter Wheat1

  1. T. W. Massee and
  2. F. H. Siddoway2

Abstract

Abstract

Intermountain drylands lose water from the root zone during the summer of fallow even though they receive a monthly average of 3.1 cm of precipitation. Soil water content in the 7.5- to 15-cm seed zone at the end of summer fallow was related to soil water content at the Lime tillage was initiated in the spring. Fall soil water content was not appreciably affected by variations in summer rainfall. Adequate soil water for winter wheat Triticum aestivum L. em Thell) emergence was best assured by initiating summer fallow tillage when the water content in the 7.5- to 15-cm layer was relatively high, rather than depending on summer rain to rewet this layer.

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