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Influence of Cropping, Manure, and Manure Plus Lime on Exchange Capacity, Exchangeable Calcium, pH, Oxidizable Material, and Nitrogen of a Fine‐Textured Soil in Eastern Nebraska 1
Author(s) -
Muhr G. R.,
Smith Henry W.,
Weldon M. D.
Publication year - 1943
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/agronj1943.00021962003500020004x
Subject(s) - lime , agronomy , manure , nitrogen , cation exchange capacity , environmental science , soil ph , cropping , chemistry , soil water , agriculture , soil science , biology , ecology , paleontology , organic chemistry
E of cropping and fertilization on the chemical properties of soils have been the subject of extensive research. Whiteside and Smith (8) ~ have recently reviewed the literature concerning soil changes associated with cropping ih humid areas of the United States. Prince, et al. (5), who worked with soil materials in cylinders, have reported the changes in several properties of a New Jersey soil during 40 years ol nitrogenous fertilization. Metzger (3) has presented data concerning the effect of fertilizers, manure, and lime on several properties of a Kansas soil cropped to alfalfa. Merkle (2) has referred to numerous publications dealing with the after effects of fertilizers in his report of base exchange studies on the Pennsylvania Jordan field plots. ̄ It is the purpose of this paper to report the effect of cropping, of applications of manure, and of applications of manure plus lime on exchange capacity, exchangeable calcium, pH, oxidizable material, and nitrogen of the soil at the fertility plots near Lincoln, Nebr. The soil of these plots is tentatively mapped as Marshall silty clay loam, but it has a heavier and more compact subsoil than is typical for that soil type. For the 7~-year period ending with ~94~, the mean annual precipitation at Lincoln was 26.8 inches. During the ~6-year rotation period, ~92 ~ to ~936, the mean annum precipitation was 24.3 inches, with annual amounts varying from ~4. ~ to 34.3 inches. About three-fourths of the precipitation occurs in the growing season, April to September, inclusive.