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Yield, Percent Nitrogen, and Total Nitrogen Uptake of Various California Annual Grassland Species Fertilized with Increasing Rates of Nitrogen 1
Author(s) -
Jones Milton B.
Publication year - 1963
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1963.00021962005500030014x
Subject(s) - acre , nitrogen , agronomy , grassland , yield (engineering) , environmental science , zoology , spring (device) , biology , chemistry , mechanical engineering , materials science , organic chemistry , metallurgy , engineering
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.