Results 41 to 50 of about 4,262 (271)

Runoff of Silvicultural Herbicides Applied Using Best Management Practices [PDF]

open access: yes, 2013
Nine small (2.2 to 2.9 ha) and four large (70 to 135 ha) watersheds in East Texas, USA, were instrumented to compare herbicide runoff under different silvicultural systems with best management practices (BMPs). Two treatments were evaluated: conventional,
Beasley, R Scott   +4 more
core   +2 more sources

Acute and environmental toxicity studies with hexazinone [PDF]

open access: yesFundamental and Applied Toxicology, 1984
The acute toxicity of hexazinone, a herbicide intended for general noncropland areas and selected crop uses (alfalfa and sugarcane), has been evaluated to establish proper handling guidelines and to measure its potential impact on the environment. The material is slightly to moderately toxic when given as a single oral dose; its LD50 in male rats is ...
openaire   +2 more sources

Performance of herbicides in sugarcane straw

open access: yesCiência Rural, 2015
The process of mechanical harvesting of sugarcane generates a large deposition of straw on the soil surface, providing a coverage that several studies have found important for reducing the weed population. Although such coverage reduces weed infestations,
Rosilaine Araldi   +5 more
doaj   +1 more source

Banco de sementes do solo após aplicação de herbicidas pré-emergentes durante quatro safras de cana-de-açúcar [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2016
Resumo: O objetivo deste trabalho foi avaliar o efeito dos herbicidas pré-emergentes indaziflam, indaziflam+metribuzim e diuron+hexazinone sobre o banco de sementes do solo de lavoura de cana-de-açúcar, durante quatro safras consecutivas.
Reynaldo Tancredo Amim   +3 more
doaj   +1 more source

Seletividade de herbicidas: II - aplicação de herbicidas em pós-emergência inicial e tarida da cana-de-açúcar na época das chuvas Herbicide selectivity: II - herbicide application at initial and late and post-emergence of sugarcane in the rainy season

open access: yesPlanta Daninha, 2005
Objetivou-se com este trabalho testar a seletividade dos herbicidas diuron+hexazinone, azafenidin+hexazinone, metribuzin e isoxaflutole, aplicados em pósemergência inicial e tardia das plantas de cana-de-açúcar, cultivar RB835089, na época das chuvas, em
C.A.M. Azania   +4 more
doaj   +1 more source

An improved method for calculating toxicity-based pollutant loads:Part 2. Application to contaminants discharged to the Great Barrier Reef, Queensland, Australia [PDF]

open access: yes, 2016
Pollutant loads are widely used to set pollution reduction targets and assess regulatory compliance for the protection of receiving waterbodies. However, when a pollutant load consists of a mixture of chemicals, reducing the overall load (mass) will not ...
Backhaus   +22 more
core   +1 more source

Interaction of hexazinone with two soils and three fertilisers

open access: diamondProceedings of the New Zealand Weed and Pest Control Conference, 1985
J.A. Zabkiewicz, R.E. Gaskin
openaire   +3 more sources

Selection of microorganisms and preparation of inoculants with potential applications in the remediation of soil contaminated with hexazinone

open access: yesCiência Rural, 2021
: The excessive use of agrochemicals negatively impacts the environment, making the development of sustainable technologies for the reduction of contaminants in soil necessary. Hexazinone is the herbicide most used for sugarcane crops and persists in the
V. Santos   +5 more
semanticscholar   +1 more source

Detection of s-Triazine pesticides in natural waters by modified large-volume direct injection HPLC [PDF]

open access: yes, 2010
There is a need for simple and inexpensive methods to quantify potentially harmful persistent pesticides often found in our water-ways and water distribution systems.
Beale, D   +4 more
core   +1 more source

Quantitation and Dietary Risk Assessment of Hexazinone Residue in Blueberry Fruit [PDF]

open access: yesShipin Kexue
In order to determine the residue of hexazinone in blueberry fruit, field experiments in Zhejiang, Jilin, Liaoning and Beijing, China were conducted using 75% hexazinone water dispersible granules.
HE Hongmei, XU Lingying, ZHANG Changpeng, WANG Xiangyun, JIANG Jinhua, LI Yanjie, ZHAO Xueping
doaj   +1 more source

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