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This article in AJ

  1. Vol. 61 No. 2, p. 256-259
     
    Received: July 24, 1968


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doi:10.2134/agronj1969.00021962006100020024x

Weed Control and Plant Residue Maintenance with Various Tillage Treatments in a Winter Wheat-Fallow Rotation1

  1. C. R. Fenster,
  2. C. E. Domingo and
  3. O. C. Burnside2

Abstract

Abstract

Late spring tillage gave the most effective weed control in a winter wheat (Triticum aestivum L.)-fallow rotation. Downy brome (Bromus tectorum L.) populations in winter wheat on May 1 following plow, one-way, and sweep plow fallow treatments were 11, 22, and 24 plants per square meter, respectively. Tillages only in July or August with the sweep plow or one-way did not effectively control downy brome in the subsequent wheat crop. Yields of winter wheat were highest on the mold-board plow plots followed by one-way and sweep plow plots tilled in July and again in April. July tillages with the sweep plow or one-way resulted in the lowest winter wheat yields. During the fallow year, weed control in June was best on moldboard-plowed plots followed by May tillages with the sweep plow and the one-way. Quantities of plant residues on the soil surface prior to seeding winter wheat on sweep plow, one-way, and plot treatments were 896, 728, and 54 kg/ha, respectively.

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