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Nitrogen Changes Attending Various Crop Rotations on Clarion‐Webster Soils in Iowa 1
Author(s) -
Bartholomew W. V.,
Shrader W. D.,
Englehorn A. J.
Publication year - 1957
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/agronj1957.00021962004900080004x
Subject(s) - nitrogen , agronomy , crop rotation , clarion , soil water , nitrogen deficiency , environmental science , rotation (mathematics) , crop , mathematics , biology , chemistry , soil science , geometry , organic chemistry , artificial intelligence , computer science
Synopsis Nitrogen declines with cultivation of Clarion‐Webster soil were largest under a cropping system of continuous corn followed in the order of decreasing decline by the 2‐year rotation of corn and oats, the 5‐year rotation with 2 years of meadow and the 3‐year rotation with 1 year of meadow. Plots with high initial nitrogen lost more nitrogen and a larger percentage of total nitrogen than plots with low initial nitrogen.