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Availability to Corn of Nutrients in the A2 and B Horizons of Hillsdale Loam 1
Author(s) -
Millar C. E.
Publication year - 1933
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/agronj1933.00021962002500060008x
Subject(s) - loam , citation , nutrient , soil water , library science , mathematics , computer science , environmental science , chemistry , soil science , organic chemistry
The ability of corn, oats, barley, and potatoes to utilize soluble nutrients occurring in the lower soil horizons was shown by Weaver, Jean, and Crist (1)3 Millar (2) showed that while corn can absorb soluble nutrients placed in the lower horizons, under the conditions of his experiments insufficient quantities of nutrients were obtained from unfertilized soil of the A2 and B horizons of" Coloma sand and Leslie (now named HillsdMe) sandy loam to make possible any considerable growth. The addition of NH4NO ~ increased growth to a slight extent in the B horizon and more appreciably in the A2 horizon. That crops vary in their ability to grow in different horizons of various soil profiles was shown by Millar (3). The question arises as whether the failure of a given crop to grow satisfactorily in material from a lower horizon of a certain soil profile is due to a lack of available nutrients or to some other condition, as soil reaction, the presence of a toxic substance, or an undesirable physical condition.