Acetochlor persistence in soil under no-tillage and conventional systems

Planta Daninha

Vidal, R.A.¹  Universidade Federal do Rio Grande do Sul, Porto Alegre¹  Ferri, M.V.W.¹ 

关键词: Triticum aestivum;    soil management;    bioactivity;    persistence;    half-life.;   

DOI  :  10.1590/S0100-83582002000100017

学科分类：农业科学（综合）

来源: Sociedade Brasileira da Ciencia das Plantas Daninhas (S B C P D) / Brazilian Society of Herb Science

【 摘 要 】

Soil management affects herbicide persistence, weed control, crop injury and environmental risks. An experiment was carried out at the Universidade Federal do Rio Grande do Sul - Rio Grande do Sul state, Brazil to evaluate the persistence of acetochlor herbicide in conventional tillage and no-tilage systems. The soil was classified as Paleudult. The tested dose of the herbicide was 3.360 g ha-1. The persistence of acetochlor was evaluated in a bio-assay using wheat (Triticum aestivum). Assessments included plant height and dry matter. Acetochlor half-life was 10 and 29 days under no-tillage and conventional tilled system, respectively.

【 授权许可】

Unknown