The use of a herbicide as a tool to increase livestock consumption of medusahead (Taeniatherum caput-medusae)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-04-16 DOI:10.1017/inp.2021.12

C. Stonecipher, C. Spackman, K. Panter, J. Villalba

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引用次数: 1

Abstract

Abstract Medusahead [Taeniatherum caput-medusae (L.) Nevski] is an invasive annual grass spreading into rangelands throughout the western United States. We tested cattle (Bos taurus L.) utilization of T. caput-medusae following treatment with glyphosate in two forms of its salt (potassium salt and isopropylamine salt) at three different rates of application; low (236 g ae ha-1), medium (394 g ae ha-1), and high rates (788 g ae ha-1) in eastern Washington. The herbicide was applied on April 26, 2016. A second location, northern Utah, was treated with glyphosate in the form of its isopropylamine salt at the high rate. The herbicide was applied on June 5, 2019. Cattle were allowed to start grazing T. caput-medusae 15 d after glyphosate treatment and had unlimited access to the glyphosate-treated plots for more than 85 d. The greatest utilization of T. caput-medusae occurred at the highest glyphosate application rate (P < 0.05), in Washington, with no difference between forms of glyphosate salt. Cattle also consumed T. caput-medusae at the Utah site (P < 0.05). Glyphosate treatment preserved the water-soluble carbohydrate content of T. caput-medusae at levels greater than the nontreated controls (P < 0.05) at both locations. The glyphosate treatment assisted in the increased utilization of T. caput-medusae by cattle and is a viable option for the reduction of T. caput-medusae while increasing the forage value of the weed.

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一种除草剂的使用，作为一种工具，以增加medusahead (Taeniatherum capt -medusae)的牲畜消费量

Medusahead [Taeniatherum caput-medusae (L.)]是一种侵入性的一年生草，遍布美国西部的牧场。在三种不同的施用量下，以两种形式的草甘膦盐(钾盐和异丙胺盐)处理牛(Bos taurus L.)后，测试了牛(Bos taurus L.)对T. capt -medusae的利用情况;华盛顿东部低(236 g / ha-1)、中(394 g / ha-1)和高(788 g / ha-1)。该除草剂于2016年4月26日施用。第二个地点，犹他州北部，以异丙胺盐的形式用草甘膦进行了高速率处理。该除草剂于2019年6月5日施用。草甘膦处理后15 d允许牛开始放牧，85 d以上允许牛无限制进入草甘膦处理地块。华盛顿地区草甘膦施用量最高，对草甘膦的利用率最高(P < 0.05)，不同形式的草甘膦盐没有差异。犹他地区的牛也食用了墨杜莎金针菇(P < 0.05)。草甘膦处理能显著提高毛蚶水溶性碳水化合物含量(P < 0.05)。草甘膦处理有助于提高牛对美杜鹃的利用，是减少美杜鹃数量同时提高其牧草价值的可行选择。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.