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Effect of Fumigants on the Soil Status and Plant Uptake of Certain Elements
Author(s) -
Smith Donald H.
Publication year - 1963
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1963.03615995002700050021x
Subject(s) - bromide , phosphorus , chemistry , greenhouse , environmental chemistry , organic matter , agronomy , inorganic chemistry , organic chemistry , biology
Fumigants commonly used or studied in relation to pineapple production in Hawaii are D‐D, EBD, BBC (1,2‐dibromo‐3‐chloropropane), and methyl bromide. These fumigants sometimes increase and sometimes decrease the quantity of iron that may be extracted from the soil. Use of D‐D and methyl bromide appears to improve the utilization of iron within the plant but not the uptake of iron by the plant. Fumigants sometimes lower the oxidation‐reduction potential in otherwise unamended soil. When combined with easily decomposable organic matter, they very markedly reduce this potential. The effect of fumigants in increasing availability of maganese in the soil and to the plant may be large, and may persist for many months. Fumigants frequently increase the phosphorus content of soil extracts, and D‐D has increased the phosphorus “A value” in greenhouse tests, but use of D‐D or methyl bromide in the field consistently results in reduced phosphorus uptake by the plant.