1999
DOI: 10.1590/s0100-83581999000300007
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Respiração microbiana do solo sob doses de glyphosate e de imazapyr

Abstract: Microbial respiration under doses of glyphosate and imazapyr

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Cited by 24 publications
(25 citation statements)
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References 22 publications
(19 reference statements)
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“…Souza et al (1999aSouza et al ( , 1999b verified that glyphosate leaching was very small in two different Brazilian soils and the soil microorganisms used the herbicide as C source, but the process was extremely dependent of soil moisture. However, Krzysko-Lupicka & Orlik (1997) verified that glyphosate used as a unique source of P or C inhibited the soil fungi population and changed the strain composition, thus acting as environmental selecting agent.…”
Section: Introductionmentioning
confidence: 93%
“…Souza et al (1999aSouza et al ( , 1999b verified that glyphosate leaching was very small in two different Brazilian soils and the soil microorganisms used the herbicide as C source, but the process was extremely dependent of soil moisture. However, Krzysko-Lupicka & Orlik (1997) verified that glyphosate used as a unique source of P or C inhibited the soil fungi population and changed the strain composition, thus acting as environmental selecting agent.…”
Section: Introductionmentioning
confidence: 93%
“…Embora os agrotóxicos possam ter efeito negativo na população microbiana, estudos mostram que bactérias podem resistir, e até mesmo proliferar, na presença de agrotóxicos em elevadas concentrações, maiores que as taxas aplicadas no campo (Martesson, 1992). Para esse tipo de estudo, a taxa de evolução de CO 2 do solo tem sido utilizada como índice da atividade, assim como o tamanho da biomassa microbiana do solo e, ainda, o metabolismo do carbono lábil do solo (Souza et al, 1999). Para a fitorremediação de herbicidas, torna-se fundamental a identificação de espécies de plantas que estimulem a atividade e o crescimento microbiano na rizosfera, resultando no aumento das taxas de degradação do composto do solo, principalmente se este apresenta persistência elevada, como o tebuthiuron (Bovey et al, 1982).…”
Section: Introductionunclassified
“…The mild effect of herbicides on conifers, rapid inactivation in soil, and low mammalian toxicity confirmed its effectiveness and wide usage (DiTomaso 1997).The commercial success of glyphosate as a highly effective herbicide has stimulated several studies on its behavior and persistence in soil (Krzysko-Lupicka and Orlik, 1997;Forlani et al, 1999;Jonge and Jonge, 1999). Bacteria and other microbial degradation are considered to be the most important of the transformation processes that determine the persistence of herbicides in soil (Souza et al, 1999).…”
Section: Introductionmentioning
confidence: 97%