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  1. Vol. 48 No. 4, p. 147-152

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Effect of Soil Type, Fertilization, and Stage of Growth on Yield, Chemical Composition, and Biological Value of Ladino Clover (Trifolium repens L.) and Alfalfa (Medicago sativa)1

  1. W. F. Wedin,
  2. A. W. Burger and
  3. H. L. Ahlgren2



In a 4-year Wisconsin study, greatest yields resulted on Miami silt loam and from cutting at intermediate growth stage. Yield increases from fertilization were greatest on soil types of lower productivity field rating. Highest contents of P, K and N resulted in forage harvested on soil types of medium to high ratings, and from pasture stage harvests. Contents of P and K were increased, Ca decreased, and N unchanged by fertilization. Forage nutritive value measured in guinea pig feeding trials compared closely to field ratings of the soil types.

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