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Page 10

University of Arizona CONTENTdm Server Respository

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Title Page 10
Type text
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Identifier su00425.jpg http://server16127.contentdm.oclc.org/u?/udallcoloradoAZU,5255
Description -8- mixture, the salt content of the mixture would in fact be doubled. Considering optimum conditions of permeability in any soil, and the operation of an efficient drainage system, it would be necessary to increase the irrigation duty corresponding to the consumptive use of the principal crops, approximately in the percentages shown below: Irrigation waters with 900 p.p.m. of dissolved solids require an additional 21% of consumptive use duty. A mixture of 1,800 p.p.m. would require... Epson Perfection 4870 Photo, 400 dpi, 24 bit, 2,160,462 bytes

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