Toxicity studies with arsenic in eighty California soils
AuthorsA. S. Crafts
R. S. Rosenfels
Authors AffiliationsA. S. Crafts was Assistant Professor of Botany and Assistant Botanist in the Experiment Station; R. S. Rosenfels was Assistant Physiologist, Division of Cereal Crops and Diseases, Bureau of Plant Industry, United States Department of Agriculture.
Hilgardia 12(3):177-200. DOI:10.3733/hilg.v12n03p177. January 1939.
Abstract does not appear. First page follows.
The increasing use of arsenic in herbicides, insecticides, and soil sterilants presents problems of great economic importance. The farmer, needing practical methods for controlling pests, seeks the cheapest and most effective reagents, whereas the soils investigator must try to conserve our agricultural areas for present and future generations.
Arsenic, being cheap, readily available, and extremely toxic, is in constant demand for weed and insect-pest control and is recommended by many companies, often without specific knowledge of dosages required, effective methods of application, or ultimate effects upon the soil.
In the field use of arsenic, workers naturally ask what form is most effective for the particular type of treatment being used, how much will be needed for the desired results, and how long the results will last. The soils investigator wants to know what the effects of long-time accumulation of arsenicals in soils will be, whether the soil is permanently harmed when crop yields have been reduced, and how one may remove or remedy the toxic condition resulting from arsenic in the soil.
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[13.] Rosenfels R. S., Crafts A. S. Arsenic fixation in relation to the sterilization of soils with sodium arsenite. Hilgardia. 1939. 12(3):201-29. DOI: 10.3733/hilg.v12n03p201 [CrossRef]
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Woolly and green apple aphids: Field trials with new materials in orchard near Watsonville indicate same timing of spray treatment controls both pests
Arsenic fixation in relation to the sterilization of soils with sodium arsenite
Toxicity studies with sodium chlorate in eighty California soils