Fumigation with Chloropicrin, Metham Sodium, and EPTC as Replacements for Methyl Bromide in Southern Pine Nurseries
Abstract:The effects of soil fumigation with chloropicrin alone or in combination with metham sodium and or with EPTC on the growth of loblolly pine (Pinus taeda L.) seedlings and on nutsedge (Cyperus spp.) control were investigated at three forest tree nurseries. Fumigation with chloropicrin plus metham sodium (CMS) significantly increased seedling numbers and growth compared to controls. Averaged among nurseries, mean root-collar-diameter increased from 0.14 to 0.17 in., and biomass from 0.14 to 0.20 lb/ft². This produced seven more plantable seedlings and 6.5 more grade 1 seedlings/ft² in CMS compared to not fumigated plots. Fumigation increased average potential sales $7,100/ac and increased present values, projected for the growth increases for additional grade 1 seedlings, by $25,900/ac. Fumigation increased biomass per unit area similarly at tested bed densities (10 to 29/ft²), but at low bed densities (≤20/ft²) the present values associated with grade 1 seedlings increased more than at higher densities. South. J. Appl. For. 24(3):135-139.
Document Type: Journal Article
Affiliations: School of Forestry, 108 M. White Smith Hall, Auburn University, Alabama 36849-5418, (334) 844-4998
Publication date: 2000-08-01
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- Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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