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Comparison of Evaporation Data from Standard Weather Bureau and Plant Industry Type Evaporation Pans 3
Author(s) -
Brown Paul L.,
Hallsted A. L.
Publication year - 1952
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/agronj1952.00021962004400020014x
Subject(s) - citation , irrigation , division (mathematics) , mathematics , library science , computer science , agronomy , arithmetic , biology
fertility treatments. Cucumber yields per inch of water used were 1.12 to 1.43 times greater on the high fertility plots than on the lower fertility plots. In 1950 alfalfa yields per inch of water used were 1.34 times greater on the high fertility plot than on the low fertility plot. It must be recognized that, although crops grown on fertile soils may make a more efficient use of water, the total amount of water used, because of the increased crop production, may be greater than on a less fertile soil. Consequently, crops grown on more fertile soil, although using water more efficiently, are often the first to lack water and wilt if the water supply is limited. However, in areas where irrigation is practiced, or where water is not limiting, high fertility not only insures adequate plant nutrients but also induces a more efficient use of water and is essential to obtain the highest yield per unit of water applied.— R. J. HANKS and C. B. TANNER, research assistant and Assistant Professor of Soils, respectively, University of Wisconsin, Madison, Wis.