The Relation of Soil Moisture to Pear Tree Wilting in a Heavy Clay Soil<sup>1</sup>
R. A. WorkMichael R. LewisAssociate Irrigation Engineer, Division of Irrigation, Bureau of Agricultural Engineering, U. S. Dept. of Agriculture, and Irrigation Engineer, Soils Department, Oregon Agricultural Experiment Station and Division of Irrigation, Bureau of Agricultural Engineering, respectively
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