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The Use of Phosphorus for Crop Production in the United States
Author(s) -
Volk Garth W.
Publication year - 1944
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/sssaj1944.036159950008000c0009x
Subject(s) - chemist , citation , library science , political science , operations research , agricultural science , computer science , chemistry , mathematics , environmental science , organic chemistry
r^HE present world-wide conflict has increased treJ. mendously the demands for agricultural products in the United States. The maximum production of these products involves a host of different factors, one of which is phosphatic fertilizers. In order to determine the most effective use of phosphorus, it is necessary to consider the kinds of phosphatic fertilizers, the present need for various crops, the response .of crops to phosphorus in different regions of the United States, and transportation facilities for shipment of fertilizers. Since our task is one of crop production, the question arises as to which crops should receive the most attention. It is difficult to place them in their proper order, but it may be assumed that food crops are the most important. Feed, fiber, and oil crops must also be given special emphasis. All must be produced in vast quantities. Some of the most important food crops are corn, cereals, potatoes, beans, peas, peanuts, and vegetables. Feed crops, excluding those mentioned under food crops, include pastures, hays, and crops used as concentrates. Fiber and oil crops include soybeans, peanuts, cotton, flax, hemp, etc. No attempt is made to list all crops but those mentioned will serve to indicate crops which are essential to the war effort.