Physiological aspects of soil solution investigations
AuthorD. R. Hoagland
Hilgardia 1(11):227-257. DOI:10.3733/hilg.v01n11p227. November 1925.
Abstract does not appear. First page follows.
In investigations of the chemical system constituted by the soil and the plant, it is unavoidable, in the majority of cases, that the research should be directed into some specialized phase of soil chemistry, or of plant physiology. Little opportunity is afforded to make direct comparisons between soil conditions and the conditions of artificial cultures. For the past ten years, however, the California Experiment Station has conducted various soil and plant investigations which have made possible such comparisons. This has brought up for discussion numerous questions pertaining to the physiological aspects of soil solution investigations, and perhaps it is worth while to pause for a short time, in the course of detailed study of experiments, to take a general survey of several important physiological phases of the soil-plant system.
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Bulk handling of milk by the ranch to factory system
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Control measures in trichomoniasis abortion by cows
Water infiltration rates into yolo loam studied to determine irrigation efficiency factors
Control measures for barley stripe are recommended
Spraying liquid insecticides, fungicides and herbicides by plane lessens drift problem
Treating row crop seeds with fungicides as control measure against decay or damping-off
Improved flavor-color produced in evaporated milk
Abstracts of new publications