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Nitrogen Uptake by Wheat in Relation to Nitrogen Content of Soil
Author(s) -
Carpenter R. W.,
Haas H. J.,
Miles E. F.
Publication year - 1952
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/agronj1952.00021962004400080005x
Subject(s) - nitrogen , citation , irrigation , mathematics , agronomy , library science , chemistry , computer science , biology , organic chemistry
CONSIDERABLE interest has been shown in the quality of organic matter and the availability of its nitrogen under different cropping systems. A review of early literature is given by Waksman (8). His work and that of others such as Fraps (2), Gainey (4), and Gowda (5) have shown a definite correlation between nitrifying capacity of soils and productivity although there are many exceptions. Fraps and Sterges (3) list several factors affecting the nitrifying capacity of soils. Allison and Sterling (1) conducted nitrification studies on Cheyenne fine sandy loam soil from selected rotation plots of varying total nitrogen content at Mandan, N. D. Their results showed that nitrate formation from soil organic matter was directly correlated with total soil nitrogen "at all incubation periods on both limed and unlimed soils. The addition of lime was most effective in increasing nitrification on the low nitrogen soils and resulted in nitrates formed being nearly proportional to total soil nitrogen. They concluded that in a given soil type and under like climatic conditions, thoroughly humified soil organic matter is fairly uniform in quality regardless of past, agronomic treatment. Rendig (6) found that the proportions of the various forms of organic nitrogen in a virgin prairie