Qiao Kang, Jiang Lili, Wang Hongyan, Ji Xiaoxue, Wang Kaiyun
Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China.
J Agric Food Chem. 2010 Nov 10;58(21):11395-9. doi: 10.1021/jf102830y. Epub 2010 Oct 12.
1,3-Dichloropropene (1,3-D, C3H4Cl2) is a potential candidate as a soil disinfectant because of the restriction of methyl bromide (MeBr) in soil fumigation due to its ecological risk. Field trials were conducted to ascertain the efficiency of 1,3-D as a MeBr alternative in tomato ( Solanum lycopersicum L.) and evaluate its application prospects in China. Five treatments were replicated five times in a randomized complete block design: fumigation with MeBr (400 kg ha(-1)), three 1,3-D doses (180, 120, and 90 L ha(-1)), an avermectin dose (7.5 L ha(-1)), and a nontreated control. Results consistently indicated that MeBr was generally superior to the treatments involving all 1,3-D levels and avermectin, which in turn were superior to the control, for improving tomato yield and inhibiting nematode, weed, and mortality caused by plant disease. In both seasons, 1,3-D at the dose of 180 L ha(-1) was as effective as MeBr in increasing plant height, vigor, and tomato yield and in reducing the incidence of soilborne disease, especially in maintaining excellent nematode control efficiency, but it provided relatively poor control over weeds. On the basis of these results, 1,3-D, in combination with other alternatives to MeBr, is recommended to achieve integrated pest management.
1,3 - 二氯丙烯（1,3 - D，C₃H₄Cl₂）因甲基溴（MeBr）在土壤熏蒸中存在生态风险而受到限制，故有望成为一种土壤消毒剂。开展了田间试验，以确定1,3 - D作为MeBr替代品用于番茄（Solanum lycopersicum L.）种植的效果，并评估其在中国的应用前景。在随机完全区组设计中，对五种处理进行了五次重复：用MeBr熏蒸（400 kg ha⁻¹）、三种1,3 - D剂量（180、120和90 L ha⁻¹）、一种阿维菌素剂量（7.5 L ha⁻¹）以及一个未处理对照。结果始终表明，在提高番茄产量、抑制线虫、杂草以及由植物病害导致的死亡率方面，MeBr总体上优于所有1,3 - D水平和阿维菌素的处理，而这些处理又优于对照。在两个季节中，180 L ha⁻¹剂量的1,3 - D在增加株高、活力和番茄产量以及降低土传病害发生率方面与MeBr效果相当，尤其是在保持出色的线虫防治效率方面，但对杂草的防治效果相对较差。基于这些结果，建议将1,3 - D与MeBr的其他替代品结合使用，以实现病虫害综合管理。
