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Influence of Previous Crop and Nitrogen Mineralization on Crop Response to Applied Nitrogen 1
Author(s) -
Hipp B. W.,
Gerard C. J.
Publication year - 1971
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/agronj1971.00021962006300040021x
Subject(s) - sorghum , agronomy , mineralization (soil science) , nitrogen , crop , sorghum bicolor , capitata , canola , sweet sorghum , brassica oleracea , brassica , environmental science , subtropics , vertisol , biology , chemistry , soil water , soil science , organic chemistry , fishery
Experiments were conducted under irrigated, subtropical conditions to evaluate the influence of previous crop on NO 3 ‐N distribution in the soil profile and subsequent response by cotton ( Gossypium hirsutum L.) and grain sorghum ( Sorghum bicolor (L.) Moench.) to applied N. Responses to N were obtained with cotton and grain sorghum if planted immediately after cabbage ( Brassica oleracea var. capitata ), but responses to N were small or non‐existent if the area was fallow from September until March. Fall and winter temperatures are warm enough that N mineralization allows accumulation of NO 3 ‐N in the soil profile and may preclude a response from application of N.