PMID- 21869510
OWN - NLM
STAT- MEDLINE
DCOM- 20110922
LR  - 20171116
IS  - 0047-2425 (Print)
IS  - 0047-2425 (Linking)
VI  - 40
IP  - 5
DP  - 2011 Sep-Oct
TI  - Comparisons of soil surface sealing methods to reduce fumigant emission loss.
PG  - 1480-7
LID - 10.2134/jeq2009.0422 [doi]
AB  - State and federal regulatory agencies depend on quality field data for 
      determining the effects of agricultural management practices on fumigant 
      emissions to develop sound, science-based policies and regulations on preplant 
      soil fumigants. Field plot tests, using growers' standard field operation 
      procedures, were used to simultaneously determine the effectiveness of several 
      commonly proposed emission reduction methods, in a trial involving shank 
      injection of Telone II [a.i. 1,3-dichloropropnene (1,3-D)] to a sandy loam soil 
      to a target rate of 372 kg ha(-1). The experiment was conducted in late September 
      2008 in the San Joaquin Valley of California. Fumigant emissions were captured 
      using dynamic flux chambers. The results showed that virtually impermeable film 
      (VIF) reduced emissions >95% when compared to bare soil, and the glue joints in 
      the film did not significantly affect the tarp performance. The VIF also created 
      a more uniform distribution of gaseous fumigant in the soil profile, which would 
      likely benefit pest control efficacy. Standard high-density polyethylene (HDPE) 
      tarp reduced total 1,3-D emissions about 50% (higher than most reported values) 
      in this trial, whereas postfumigation intermittent water treatments (seals) 
      reduced cumulative emission losses by approximately 20%. Adding 49.4 Mg ha 
      (equivalent to 20 tons per acre) of composted dairy manure to surface soils did 
      not reduce 1,3-D emissions during this experiment. Use of VIF was the most 
      promising technique in reducing emissions and has the potential to allow lower 
      application rates while providing satisfactory pest control.
CI  - by the American Society of Agronomy, Crop Science Society of America, and Soil 
      Science Society of America, Inc.
FAU - Gao, Suduan
AU  - Gao S
AD  - USDA-ARS, Water Management Research Unit, San Joaquin Valley Agricultural 
      Sciences Center, Parlier, CA 93648, USA. Suduan.Gao@ars.usda.gov
FAU - Hanson, Bradley D
AU  - Hanson BD
FAU - Qin, Ruijun
AU  - Qin R
FAU - Wang, Dong
AU  - Wang D
FAU - Yates, Scott R
AU  - Yates SR
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Environ Qual
JT  - Journal of environmental quality
JID - 0330666
RN  - 0 (Air Pollutants)
RN  - 0 (Soil)
SB  - IM
MH  - Air Pollutants/*analysis
MH  - Chromatography, Gas
MH  - Fumigation/*methods
MH  - *Soil
EDAT- 2011/08/27 06:00
MHDA- 2011/09/23 06:00
CRDT- 2011/08/27 06:00
PHST- 2011/08/27 06:00 [entrez]
PHST- 2011/08/27 06:00 [pubmed]
PHST- 2011/09/23 06:00 [medline]
AID - 10.2134/jeq2009.0422 [doi]
PST - ppublish
SO  - J Environ Qual. 2011 Sep-Oct;40(5):1480-7. doi: 10.2134/jeq2009.0422.