Herbicide use history and perspective in South America

IF 1.8 4区农林科学 Q2 PLANT SCIENCES

Advances in Weed Science Pub Date : 2022-01-01 DOI:10.51694/advweedsci/2022;40:seventy-five010

A. Merotto, D. Gazziero, Maxwel C. Oliveira, J. Scursoni, M. A. Garcia, R. Figueroa, G. Turra

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引用次数: 7

Abstract

: Background : Agriculture in South America (SA) had a great expansion in the last decades and weed control changed accordingly with region and crop practices. Objective : The objective of this review is to present the history of herbicide use and discuss the main changes in weed management in SA. Methods : Herbicide use quantities were obtained from official institutions and commercial organizations in Argentina, Brazil, Chile, Paraguay and Uruguay. Data were summarized per active ingredient, herbicide mode of action or crop. The evolution of the cultivated area of the main crops in each country, and the crop and weed management associated to it were considered to discuss the importance and the consequences of the main herbicides used. Results : In 2019 the most used herbicides in Brazil were glyphosate, 2,4-D, atrazine, paraquat and diuron representing 62, 15, 7, 5 and 2% of the total amount used. In Argentina, the increasing selection of herbicide resistant populations (4 cases/year), resulted in utilization of older chemistries. Weed control in Uruguay is traditionally benefited from crop/pasture rotations but recently is also facing problems of continuous cropping systems. Agriculture in Chile is more diverse, but similar patterns and problems of herbicide use are present. Conclusions : Intensification of agriculture, no-tillage, glyphosate resistant crops, and herbicide resistant weeds were the most important drivers of herbicide use changes in SA. Integrated weed management is unpostponable to provide sustainable increasing food production in SA.

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除草剂在南美洲的使用历史和前景

背景:在过去的几十年里，南美洲的农业有了很大的发展，杂草的控制也随着地区和作物的做法而发生了相应的变化。目的:介绍南达科他州除草剂使用的历史，并讨论南达科他州杂草管理的主要变化。方法:从阿根廷、巴西、智利、巴拉圭和乌拉圭的官方机构和商业组织获取除草剂使用量。按有效成分、除草剂作用方式或作物对数据进行了总结。每个国家主要作物种植面积的演变，以及与之相关的作物和杂草管理，讨论了使用主要除草剂的重要性和后果。结果:2019年巴西使用最多的除草剂是草甘膦、2,4- d、阿特拉津、百草枯和迪乌龙，分别占总使用量的62%、15%、7.5%、5%和2%。在阿根廷，越来越多的除草剂抗性种群选择(每年4例)导致使用较旧的化学品。乌拉圭的杂草控制传统上得益于作物/牧场轮作，但最近也面临连作系统的问题。智利的农业更加多样化，但也存在类似的除草剂使用模式和问题。结论:农业集约化、免耕、抗草甘膦作物和抗除草剂杂草是南北方除草剂使用变化的最重要驱动因素。综合杂草管理是不可推迟的，以提供可持续增长的粮食生产。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Weed Science PLANT SCIENCES-

CiteScore

2.10

自引率

42.90%

发文量