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Effects of Good Management Following Soil Erosion
Author(s) -
Free G. R.
Publication year - 1957
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1957.03615995002100040024x
Subject(s) - bushel , loam , acre , erosion , environmental science , human fertilization , agronomy , fertilizer , productivity , irrigation , soil water , agroforestry , biology , soil science , economics , paleontology , macroeconomics
Abstract It has been reported previously that corn yields for a 2‐year period on Bath flaggy silt loam, despite liberal fertilization, ranged from 17 to 88 bushels per acre depending upon past management and erosion during the preceding 11 years. By the ninth year of continued good management, including fertilization and rotation and with a low rate of erosion, there were still significant residual effects of past treatments on productivity and on soil characteristics. Under a fertilizer treatment comparable to that followed during the initial 2‐year period, corn yields ranged from 71 to 93 bushels per acre. This treatment provided nitrogen at the rate of 100 pounds per acre. Residual effects on yields were effectively masked when the rate was raised to 200 pounds per acre.