Effects of 1,3-dichloropropene plus chloropicrin on weed seed germination
文献类型: 外文期刊
第一作者: Ji, Xiaoxue
作者: Ji, Xiaoxue;Qiao, Kang;Dong, Sa;Xia, Xiaoming;Wang, Kaiyun;Wang, Hongyan;Ji, Xiaoxue
作者机构:
关键词: Soil fumigation;Methyl bromide alternatives;Telone C-35;Weed control
期刊名称:CROP PROTECTION ( 影响因子:2.571; 五年影响因子:3.11 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Telone C-35, a commercial formulation of 1,3-dichloropropene (1,3-D) and chloropicrin (CP), is one of the potential replacements to methyl bromide (MB) for soil fumigation. A laboratory dose-response study and two field trials in tomato were conducted to evaluate their weed control efficacy and their effect on tomato yield. Laboratory studies found that the seeds of Digitaria chinensis were the most sensitive to soil fumigation with Telone C-35, followed by Eleusina indica, Portulaca oleracea and Stellaria media with the LC50 values between 3.35 and 11.68 mg kg(-1) soil. Field trials revealed that Telone C-35 applied to the field at 327, 243 and 164 L ha(-1) could suppress the percentage of germination weed seeds while maintaining high tomato marketable yields, with no significant differences between MB + CP and the higher two Telone C-35 rates. The yield data from both seasons indicated that all Telone C-35 treatments had a positive effect on tomato yield; there was a 32%-62% increase the mean marketable tomato yield. Our results indicated that Telone C-35 was an excellent MB alternative and could provide acceptable weed control efficacy. Based on our results, Telone C-35, in combination with other alternatives to MB, is recommended to achieve integrated pest management
分类号: S43
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