+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

2,4-Dichlorophenoxy acetic acid mineralization in amended soil



2,4-Dichlorophenoxy acetic acid mineralization in amended soil



Journal of Environmental Science and Health. Part. B Pesticides Food Contaminants and Agricultural Wastes 41(5): 509-522



The application of municipal biosolid or liquid hog manure to agricultural soils under laboratory conditions at 20 degrees C influenced the fate of the herbicide 2,4-D [2,4-(dichlorophenoxy)acetic acid] in soil. When 2,4-D was added to soil at agronomic rates immediately after the addition of manure or biosolids to a coarse-textured soil, the percentage of 2,4-D mineralized at 100 days was about 47% for both treatments, compared to only 31% for control soils without amendments. The enhanced 2,4-D mineralization as a result of amendment addition was due to an increased heterotrophic microbial activity, with the greatest increases in soil respiration occurring for soils amended with biosolids. When additions of 2,4-D were delayed for one, two, or four weeks after the amendments were applied, the additions of amendments generally reduced 2,4-D mineralization in soil, particularly for manure, indicating that the effect of amendments on enhancing soil microbial activities diminished over time. In contrast, the mineralization of 2,4-D in control soils was less dependent on when 2,4-D was applied in relation to pre-incubations of soil for zero, one, two, or four weeks. The effect of manure on decreasing 2,4-D mineralization in specific soils was as large as the effect of soil texture on differences in 2,4-D mineralization across soils. Because manure was not found to impact 2,4-D sorption by soil, it is possible that 2,4-D mineralization decreased because 2,4-D transformation products were strongly sorbed onto organic carbon constituents in manure-amended soils and were therefore less accessible to microorganisms. Alternatively, microorganisms were less likely to metabolize the herbicide because they preferentially consumed the type of organic carbon in manure that is a weak sorbent for 2,4-D.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 004504998

Download citation: RISBibTeXText

PMID: 16785163

DOI: 10.1080/03601230600701643


Related references

The decomposition of 2:4-dichlorophenoxy-acetic acid and 2-methyl-4-chlorophenoxy-acetic acid in the soil. Sci. Food Agric 3: 268-74. bibl. 8, 1952

Spatial distribution of microbial 2,4-dichlorophenoxy acetic acid mineralization from field to microhabitat scales. Soil Science Society of America journal 70(1): 64-71, 2006

Erratum: Spatial Distribution of Microbial 2,4-Dichlorophenoxy Acetic Acid Mineralization from Field to Microhabitat Scales. Soil Science Society of America Journal 70(2): 0, 2006

Comparison of mechanisms controlling uptake and accumulation of 2,4-dichlorophenoxy acetic acid, naphthalene-1-acetic acid, and indole-3-acetic acid in suspension-cultured tobacco cells. Planta 198(4): 532-541, 1996

Comparison of mechanisms controlling uptake and accumulation of 2,4-dichlorophenoxy acetic acid, naphthalene-1-acetic acid, and indole-3-acetic acid in suspension-cultured tobacco cells. Planta 98(4): 532-541, 1996

Persistence of (2,4-dichlorophenoxy)acetic acid and 2-(2,4-dichlorophenoxy)propionic acid in agricultural and forest soils of northern and southern Ontario. Journal of agricultural and food chemistry 32(3): 578-581, 1984

Determination of 2,4-dichlorophenoxy-acetic acid in soil. Anal. Chem 22: 460-463, 1950

Role of cell adhesion to surfaces, and soil organic carbon in the bioavailability of soil-sorbed 2,4-dichlorophenoxy acetic acid. Abstracts of Papers American Chemical Society 214(1-2): ENVR 169, 1997

Decomposition of 2,4-dichlorophenoxy-acetic acid in soil and liquid media. Proc. Soil Sci. Soc. Amer., 1950. 14: 160-164, 1950

The influence of fly ash on 2,4-dichlorophenoxy-acetic acid persistence in corn cultivation and soil. Science of Total Environment 123-124: 481-489, 1992

Using phenoxy herbicides effectively 2,4-dichlorophenoxy acetic acid, 2,4,5-trichlorophenoxy acetic acid, MCPA, silvex, 4- butyric acid. U S Dept Agric Farmers S Bull 2183: 3-24, 1962

Cultivar response of rice seedlings in compact or loose soil to 2,4-dichlorophenoxy acetic acid. Philippine Agriculturist 67(4): 441-449, 1984

Accumulation of (2,4-dichlorophenoxy)acetic acid and (2,4,5-trichlorophenoxy)acetic acid by parenchyma tissue as influenced by metabolic inhibitors and lecithin. Physiologia Plantarum 27(3): 338-341, 1972

The stimulatory effect of 2,4 dichlorophenoxy acetic acid and alpha naphthalene acetic acid on the growth of cowpea callus. Phyton Buenos Aires 51(1): 83-85, 1990

Relation of naphthalene acetic acid and 2,4-dichlorophenoxy acetic acid-induced growth of wheat coleoptile and IAA metabolism. Indian Journal of Experimental Biology 36(7): 709-712, 1998