Effect of Organic Material on Field-scale Emissions of 1,3-Dichloropropene
- S. R. Yates *a,
- J. Knutesonb,
- W. Zhengc and
- Q. Wangd
- a USDA–ARS, U.S. Salinity Lab., 450 W. Big Springs Rd., Riverside, CA 92507
b formerly with Dow Agrosciences, now with FluxExperts, LLC, Indianapolis, IN
c now with Illinois Sustainable Technology Center, 1 E. Hazelwood Dr., Champaign, IL 61820
d current address: Delaware State Univ., Dover, DE 19901. The use of trade, firm, or corporation names in this research article is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the United States Department of Agriculture or the Agricultural Research Service of any product or service to the exclusion of others that may be suitable. Assigned to Associate Editor Mingxin Guo
Soil fumigation is important for growing many fruits and vegetable crops, but fumigant emissions may contaminate the atmosphere. A large-scale field experiment was initiated to test the hypothesis that adding composted municipal green waste to the soil surface in an agricultural field would reduce atmospheric emissions of the 1,3-dichloropropene (1,3-D) after shank injection at a 133 kg ha−1 application rate. Three micrometeorological methods were used to obtain fumigant flux density and cumulative emission values. The volatilization rate was measured continuously for 16 d, and the daily peak volatilization rates for the three methods ranged from 12 to 24 μg m−2 s−1. The total 1,3-D mass that volatilized to the atmosphere was approximately 14 to 68 kg, or 3 to 8% of the applied active ingredient. This represents an approximately 75 to 90% reduction in the total emissions compared with other recent field, field-plot, and laboratory studies. Significant reductions in the volatilization of 1,3-D may be possible when composted municipal green waste is applied to an agricultural field. This methodology also provides a beneficial use and disposal mechanism for composted vegetative material.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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