Arsenic fixation in relation to the sterilization of soils with sodium arsenite
AuthorsR. S. Rosenfels
A. S. Crafts
Authors AffiliationsR. S. Rosenfels was Assistant Physiologist, Division of Cereal Crops and Diseases, Bureau of Plant Industry, United States Department of Agriculture; A. S. Crafts was Assistant Professor of Botany and Assistant Botanist in the Experiment Station.
Hilgardia 12(3):201-229. DOI:10.3733/hilg.v12n03p201. January 1939.
Abstract does not appear. First page follows.
Data from greenhouse experiments on the toxicity of arsenic to oats in 80 California soils are reported by Crafts and Rosenfels (7)5 in another paper of this issue. In most of the soils tested, texture predominated as a determiner of toxicity; that is, toxicity was greatest in light and least in heavy soils. The few exceptions to this general rule are explained by the content of iron compounds of the soils (as indicated by their reddish color) or by the properties of the soil colloids. A similar relation between toxicity and soil texture has been noted by Cooper, et al. (4) and (5), Albert and Arndt (2), and Albert (1) working with South Carolina soils, and Reed and Sturgis (11), working with Louisiana soils.
The total arsenic content of a soil has not proved to be a satisfactory criterion of toxicity. As Vandecaveye, Horner, and Keaton (15) have shown, arsenic toxicity to barley is more closely correlated with the fraction soluble in 0.1 N ammonium acetate solution than with the fraction soluble in hot concentrated HNO3. The results of Reed and Sturgis (11) show that the total arsenic content of the soil does not determine toxicity to rice. They indicate that toxicity is more closely correlated with arsenic soluble in 0.05 N HCl than with that soluble in water. According to Albert and Arndt (2), arsenic soluble in a collodion-bag dialysate is a reliable index of toxicity, whereas total arsenic is not. Greaves (9) has found no correlation between total and water-soluble arsenic in orchard soils.
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[15.] Vandecaveye S. C., Horner G. M., Keaton C. M. Unproductiveness of certain orchard soils as related to lead arsenate spray accumulations. Soil Sci. 1936. 42:203-15. DOI: 10.1097/00010694-193609000-00005 [CrossRef]
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Citrus trees in water cultures: Information derived from studies using nutrient solutions as tools of research is of inestimable value to citrus industry
Effect of nontillage of navels: Relation of some tillage practices to water infiltration, yield, and quality of oranges part of fertilizer experiment
Splitting of Navel oranges: Studies indicate local temperature and humidity more closely related to incidence of injury than is soil moisture content
Albinism in citrus seedlings: Nongenetic absence or deficiency of chlorophyll in seedlings prevented by treating freshly extracted seeds with fungicide
Iron and zinc foliage sprays: Radioactive tracers being used in basic studies on factors influencing absorption and translocation of micronutrients
Chlorine absorption: All portions of citrus trees grown in soil cultures absorbed chlorine in test
Red mite on citrus: Timing control treatments important and influenced by climate of growing areas
Grocery store credit service: Combinations of credit with telephone and delivery services are related to the locations, ownership and sizes of stores
Woolly and green apple aphids: Field trials with new materials in orchard near Watsonville indicate same timing of spray treatment controls both pests
Toxicity studies with arsenic in eighty California soils
Toxicity studies with sodium chlorate in eighty California soils