PMID: 15382850Sep 24, 2004Paper

Effect of surface tarp on emissions and distribution of drip-applied fumigants

Environmental Science & Technology
Sharon PapiernikMingxin Guo

Abstract

Soil fumigants are used to control a wide variety of soil-borne pests in high-cash-value crops. Application of soil fumigants through drip irrigation systems is receiving increasing attention as a method to improve the uniformity of fumigant application. Little information is available on the emissions and soil distribution of fumigants following subsurface drip application, or the effect of plastic tarp on fumigant emissions in these systems. In these experiments, the fumigant compounds 1,3-dichloropropene (1,3-D), Vapam (a methyl isothiocyanate (MITC) precursor), and propargyl bromide (PrBr) were applied to soil beds via drip irrigation at 15 cm depth. Beds were tarped with either standard 1-mil high-density polyethylene (HDPE) or a virtually impermeable film (VIF), leaving the furrows bare. Cumulative emissions of 1,3-D, MITC, and PrBr in these tarped bedded systems was very low, amounting to <10% of the applied mass. These experiments were conducted in the winter months, with average air temperatures of 12-15 degrees C. Cumulative emissions of MITC and 1,3-D from a sandy loam field soil were decreased by > or =80% by tarping the bed with VIF rather than HDPE. A large fraction of the 1,3-D and PrBr flux was from the untarped...Continue Reading

References

Feb 7, 2001·Journal of Agricultural and Food Chemistry·S R Yates, J Gan
May 12, 2001·Environmental Science & Technology·S K PapiernikJ Gan
Jul 31, 2001·Journal of Environmental Quality·R VilanovaJ O Grimalt
May 8, 2002·Environmental Science & Technology·Sharon K Papiernik, Scott R Yates

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Citations

Oct 7, 2011·Environmental Science & Technology·Yaorong QianCharles W Smith
May 12, 2010·Annual Review of Phytopathology·Inga A ZasadaJoe W Noling
Mar 8, 2019·Pest Management Science·Ian J van Wesenbeeck, Steve Knowles
Apr 7, 2007·Journal of Environmental Quality·I J van WesenbeeckA M Phillips
Dec 31, 2010·Journal of Agricultural and Food Chemistry·James E WoodrowGlenn C Miller
Sep 13, 2007·Journal of Agricultural and Food Chemistry·Ruijun QinHusein Ajwa
Dec 4, 2004·Environmental Science & Technology·Sharon K PapiernikScott R Yates

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