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To What Extent Does the Soil Type Indicate Agricultural Value and Fertilizer Requirements?
Author(s) -
Smith R.S.
Publication year - 1922
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1922.0361599500b320010008x
Subject(s) - citation , fertilizer , value (mathematics) , agriculture , type (biology) , mathematics , agricultural economics , computer science , agricultural science , library science , environmental science , statistics , economics , history , agronomy , archaeology , geology , paleontology , biology
As I understand it, the soils of an area are separated into types because it is thought that each type differentiated has certain characters o'f agricultural significance not common to the other types. Various characters or complex groups of characters determine a soil's agricultural value and its fertilizer requirements. Some of these characters are inherent in the soil itself, others are external to the soil and cannot be taken into consideration in establishing types unless they have acted sufficiently long to make their impress on the soil; that is-, as Dr. Marbut insists, types are differentiated on the basis of soil character. To have real agricultural significance, these characters must determine, at least in part, agricultural value and fertilizer requirement. To tell a man that his farm, or the farm he contemplates buying is Tama silt loam or Brown silt loam conveys no real information to him unless at the same time he can be given a pretty clear statement regarding its agricultural value, and if the response of this particular land to various fertilizer treatments can be definitely stated, information of great value ia being given.