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首页> 外文期刊>Pest Management Science >Surface application of ammonium thiosulfate fertilizer to reducevolatilization of 1,3-dichloropropene from soil
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Surface application of ammonium thiosulfate fertilizer to reducevolatilization of 1,3-dichloropropene from soil

机译：表面施用硫代硫酸铵肥料减少土壤中1,3-二氯丙烯的挥发

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摘要

Atmospheric emission of the soil fumigant 1,3-dichloropropene (1,3-D) is of environmental concern because of its toxicity and carcinogenicity. Thiosulfate fertilizers have been found to rapidly transform 1,3-D in soil to non-volatile ions which are less toxic. We investigated the use of surface application of ammonium thiosulfate (ATS) for reducing 1,3-D volatilization. In packed soil columns, emission of 1,3-D applied by sub-surface injection decreased with increasing ATS application rate and the amount of water used far delivering ATS. When ATS was applied in 9mm water at 64g m(-2), total 1,3-D emission was reduced by 61%. The reduction was 89% when ATS was applied at 193g m(-2). Bioassays showed that ATS application did not affect the effectiveness of 1,3-D for controlling citrus nematodes. In field plots where a 1,3-D emulsified formulation was applied via sub-surface drip, surface spray of ATS reduced 1,3-D emissions by 50%, and by 71% when the surface was also covered with polyethylene film. ATS application had no effect on the efficacy of root-knot nematode control or tomato yields. These results suggest that surface application of thiosulfate fertilizers may be a feasible and effective strategy for minimizing 1,3-D emissions.
机译：土壤熏蒸剂1,3-二氯丙烯（1,3-D）的大气排放由于其毒性和致癌性而引起环境关注。已发现硫代硫酸盐肥料可将土壤中的1,3-D快速转化为毒性较小的非挥发性离子。我们调查了表面应用硫代硫酸铵（ATS）减少1,3-D挥发的情况。在填充土柱中，随着ATS施用率的提高和远距离输送ATS的水量的增加，地下注入所施加的1,3-D排放量减少。在9毫米水中以64 g m（-2）施用ATS时，总的1,3-D排放减少了61％。当以193g m（-2）施用ATS时，减少量为89％。生物测定表明，ATS的使用不会影响1,3-D防治柑橘线虫的有效性。在通过地下滴注施用1,3-D乳化制剂的田间试验中，ATS的表面喷涂可将1,3-D排放量减少50％，而当表面还覆盖有聚乙烯薄膜时，则可减少71％。 ATS的施用对根结线虫防治的功效或番茄产量没有影响。这些结果表明，硫代硫酸盐肥料的表面施用可能是减少1,3-D排放的可行且有效的策略。

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