|Zheng, W - U OF CALIFORNIA RIVERSIDE|
|Guo, M - U OF CALIFORNIA RIVERSIDE|
Submitted to: Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting
Publication Type: Abstract Only
Publication Acceptance Date: November 6, 2003
Publication Date: November 6, 2003
Citation: Dungan, R.S., Papiernik, S.K., Zheng, W., Guo, M., Yates, S.R. 2003. Use of composted animal manures to reduce 1, 3-dichloropropene emissions [abstract]. Agronomy Society of America. 2003. CDROM. Interpretive Summary: Interpretive Summary
Technical Abstract: The soil fumigant 1,3-dichloropropene (1,3-D) is widely used to control soilborne pathogens; however, because of its high vapor pressure a significant fraction escapes into the air during fumigation. High ambient air levels of 1,3-D near fumigation areas have been associated with the deterioration of air quality. Thus, there is an urgent need to develop cost-effective methods to control 1,3-D emissions. A field study was conducted to determine the effectiveness of surface application of composted chicken manure (CKM) or steer manure (SM) to reduce 1,3-D emissions. The CKM and SM were incorporated within the top 5 cm of soil at a rate of 3.3 kg m-2 or 6.5 kg m-2 (i.e. 5 or 10% on a dry wt. basis). An emulsified formulation of 1,3-D was applied through drip tape at 80.2 kg ha-1 into raised beds. The drip tape was placed in the center of each bed (102-cm-wide row) and 15 cm below the surface. After 170 hours, the cumulative loss of 1,3-D was 28 and 48% lower in CKM- and SM-amended beds, respectively, than in unamended beds. The rate of 1,3-D emission was not significantly different between the 5 and 10% manure application rates for both CKM and SM. The cis and trans isomers of 1,3-D behaved similarly in all treatments. The results of this study demonstrate the feasibility of using composted animal manures to control 1,3-D emissions.