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首页> 外文会议>Annual Meeting of the Florida^State^Horticultural^Society >Preemergence Herbicides for Purple Nutsedge (Cyperns rotundus L.) Control in Strawberry (Fragaria xananessa Duchesne)
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Preemergence Herbicides for Purple Nutsedge (Cyperns rotundus L.) Control in Strawberry (Fragaria xananessa Duchesne)

机译：草莓（Fragaria Xananessa Duchesne）对紫色Nutsedge（Cyperns Rotundus L.）对照的纯净除草剂

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There are limited weed management options for nutsedge control in Florida strawberry production and there are no herbicides registered for use with activity on nutsedge. Experiments were conducted during the 2015-16 season at the University of FloridaIFAS Gulf Coast Research and Education Center to evaluate EPTC, fomesafen, and S-metolachlor applied under the plastic mulch for use in strawberry. The first experiment was a dose-response trial set up as a randomized complete block design with four blocks that evaluated crop tolerance to 0,0.53,1.07,2.13,4.27, and 8.53 kg-ha1 a J. of 5-metolachlor, 0,1.47,2.94,5.88,11.76, and 23.52 kg-ha1 a J. of EPTC and 0.21,0.42,0.84,1.68, and 336 kg-ha1 a.i. of fomesafen. The second experiment examined potential tank-mixes and was set up as a 4 x 3 factorial. The first factor was 1.47 or 2.94 kg-ha1 aa. of EPTC or 0.21 or 0.42 kg-ha-1 a.i. of fomesafen. The second factor was 0,1.07 or 1.42 kg-ha1 a.i. of .S'-metolachlor. In the dose-response trial, none of the treatments affected strawberry height, biomass, or yield. There was some visible stunting where S'-metolachlor was applied, especially at the highest rate. There was no significant difference in nutsedge density in any of the treatments. In the tank-mix trial, none of the herbicides damaged or stunted the crop or reduced yield. We conclude that EPTC, fomesafen, and 5-metolachlor are safe for use on strawberry when applied under the plastic prior to transplant. Further research is needed to identify susceptible weed species.
机译：佛罗里达州草莓生产中有限的杂草管理方案进行了有限的果实控制，并没有注册的除草剂，用于与Nutsedge的活动一起使用。在佛罗里达州湾海岸大学海岸研究和教育中心大学的2015-16赛季进行了实验，以评估EPTC，Fomesafen和S-MetOlachlor在塑料覆盖物下用于草莓。第一个实验是一种剂量 - 响应试验，作为随机完整的块设计，其具有四个嵌段，其评估为0,0.53,1.07,2.13,4.27和8.53 kg-ha1的批量耐受性，为5-metohlor，0， 1.47,2.94,5.88,11.76和23.52 kg-ha1 a J.EPC和0.21,0.42,0.84,1.68和336 kg-ha1 ai Fomesafen。第二种实验检查了潜在的罐混合物，并设定为4 x 3阶段。第一因素为1.47或2.94 kg-ha1 aa。 EPTC或0.21或0.42 kg-ha-1 a.i。 Fomesafen。第二因素为0,1.07或1.42 kg-ha1 a.i。 of .s'-metohlor。在剂量 - 反应试验中，任何治疗都不会影响草莓身高，生物量或产量。存在一些可见的稳定，其中施加S'-石油，尤其是最高速率。任何治疗中的Nutsedge密度都没有显着差异。在罐混合试验中，除了除草剂中没有损坏或发育不足的作物或降低产量。我们得出结论，当在移植之前在塑料下施加时，EPTC，Fomesafen和5-MetOlachlor在草莓上使用。需要进一步研究来识别易感杂草物种。

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