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This article in AJ

  1. Vol. 48 No. 3, p. 111-116
    Received: Oct 22, 1955

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Availability of Phosphate Carriers to Small Grains and Subsequent Clover in Relation To: II. Concurrent Soil Amendments1

  1. R. A. Olson,
  2. A. F. Dreier,
  3. G. W. Lowrey and
  4. A. D. Flowerday2



Ammonium-N in contact with fertilizer P increased P uptake by wheat and oats with super- and metaphosphates. Potassium had no appreciable influence on P uptake. Liming acid soils reduced the effectiveness of most phosphate carriers to oats, but increased slightly their residual value for sweetclover. Sulfur addition to calcareous soils had little influence on carrier utilization by oats but caused somewhat greater uptake of all carriers by subsequent clover

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