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This article in AJ

  1. Vol. 55 No. 3, p. 254-257
     
    Received: Sept 18, 1962
    Published: May, 1963


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doi:10.2134/agronj1963.00021962005500030014x

Yield, Percent Nitrogen, and Total Nitrogen Uptake of Various California Annual Grassland Species Fertilized with Increasing Rates of Nitrogen1

  1. Milton B. Jones2

Synopsis

Synopsis

Near maximum yields resulted where 80 pounds N per acre were applied, but carryover was measurable only where 160 pounds were used. In nonleguminous plants, percent N increased with N rates during the vegetative stage, but at maturity it was less where 40 pounds N were applied than in the control. N uptake increased with N rate during winter, but uptake on unfertilized plots during the spring approximated that on plots receiving 40 pounds of N.

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