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This article in AJ

  1. Vol. 53 No. 3, p. 153-158
    Received: Aug 23, 1960

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Effect of Irrigation and Deep Fertilization on Yields and Root Distribution of Selected Forage Crops1

  1. John Boehle,
  2. Louis T. Kardos and
  3. John B. Washko2



Irrigation was effective in increasing total forage production in 1957 but not in 1958. In both years, however, irrigation prior to the first harvest did not increase yields. Deep fertilization was ineffective in increasing forage production. Alfalfa, alone and with orchardgrass, was the only species whose root yield was increased by deep fertilization. Alfalfa, alone and with orchardgrass, made the best use of available subsoil moisture; orchardgrass made the least use of this moisture.

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