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首页> 外文期刊>Journal of Turfgrass Management >Response of bentgrass cultivars to preemergence herbicides.
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Response of bentgrass cultivars to preemergence herbicides.

机译：弯曲草品种对出苗前除草剂的反应。

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摘要

A field experiment was conducted during 1994-95 to evaluate the tolerance of five creeping bentgrass (Agrostis stolonifera) cultivars to preemergence herbicides. There was no herbicide-by-cultivar interaction. All herbicides applied at recommended rates resulted in acceptable turf quality (?2% of untreated) throughout the spring and summer. Dithiopyr at 0.43 kg/ha reduced quality by 5% within two weeks after treatment, while oxadiazon at 3.4 kg/ha and bensulide + oxadiazon at 6.7 + 1.7 kg/ha reduced quality by 8%. There was no difference in quality and density of creeping bentgrass when treated with bensulide + oxadiazon at 1X (6.7 + 1.7 kg/ha) and 3X (20.2 + 5.0 kg/ha) rates. Quality was similar when dithiopyr was applied at 1X (0.43 kg/ha) and3X (1.28 kg/ha) rates, but density was lower during May and June at the higher rate. The quality and density of creeping bentgrass was lower for most of the spring and summer when treated with oxadiazon at the 3X rate (10.1 kg/ha) compared with the 1X rate (3.4 kg/ha). Cv. Cato and Crenshaw generally maintained a higher turf quality than cv. Pennlinks and Syn-1 throughout the spring and summer, and higher than cv. Penncross in August.
机译：在1994-95年间进行了田间试验，以评估5个creep草（Agrostis stolonifera）变种对苗前除草剂的耐受性。没有除草剂之间的相互作用。在整个春季和夏季，所有以推荐用量施用的除草剂均能达到可接受的草皮质量（未经处理的2％）。在治疗后两周内，0.43 kg / ha的双硫吡thio使质量降低5％，而3.4 kg / ha的草二氮杂和6.7 + 1.7 kg / ha的本舒利特+草二唑使质量降低8％。当以1倍（6.7 + 1.7千克/公顷）和3倍（20.2 + 5.0千克/公顷）的比率使用本舒利+奥达唑宗处理时，bent草的质量和密度没有差异。当以1倍（0.43千克/公顷）和3倍（1.28千克/公顷）的比例施用二硫吡py时，质量相似，但在5月和6月，密度较高时密度较低。当以3倍速（10.1千克/公顷）的奥沙地松处理时，相比1倍速（3.4千克/公顷），在春季和夏季的大部分时间里，bent草的质量和密度均较低。简历。 Cato和Crenshaw通常保持比cv更高的草皮质量。 Pennlinks和Syn-1在整个春季和夏季均高于简历。 Penncross在八月。

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