Results 41 to 50 of about 1,717 (162)
Decadal effects of fuel treatments and annual grass invasion on sagebrush ecosystem carbon stocks
Abstract Fuel treatments are implemented across large spatial scales in sagebrush (Artemisia spp.) ecosystems of the US Intermountain West to limit wildfire risk and spread, but treatment effects on ecosystem carbon storage remain poorly understood. Fuel treatments can reduce aboveground carbon storage and may also influence belowground carbon storage ...
Seren H. Bagcilar +7 more
wiley +1 more source
Scientific Opinion on waiving of the dog studies in the regulatory process of agrochemicals approval
Abstract Commission Regulation (EU) No. 283/2013 sets out the data requirements for pesticide active substances and includes short‐term oral toxicity testing in rodents (90‐day rat study) and non‐rodents (90‐day dog study) to support human health hazard assessment for pesticide active substances in the European Union (EU). However, the relevance of the
EFSA Panel on Plant Protection Products and their Residues (PPR) +20 more
wiley +1 more source
Rehabilitation of downy brome–infested shrublands is challenging once this invasive grass dominates native communities. The effectiveness of imazapic herbicide in reducing downy brome cover has been variable, and there is uncertainty about the impacts of
Catherine A. Gehring +2 more
core +1 more source
Este trabalho teve por objetivo avaliar a atividade residual da mistura comercial (imazethapyr+imazapic) sobre azevém semeado em sucessão em áreas antes cultivadas com arroz Clearfield® (CL) por um, dois ou três anos consecutivos.
J.J.O. Pinto +7 more
doaj +1 more source
Abstract In accordance with Article 12 of Regulation (EC) No 396/2005, EFSA has reviewed the maximum residue levels (MRLs) currently established at European level for the pesticide active substance clofentezine. Although this active substance is no longer authorised within the European Union, codex maximum residue limits (CXLs) were established by the ...
European Food Safety Authority (EFSA) +20 more
wiley +1 more source
CO 2 Fluxes and Soil Responses to Straw and Herbicide in Peanut
ABSTRACT Peanut cultivation plays an important agronomic role in Brazil, especially in rotation with sugarcane, promoting biological nitrogen fixation and improving soil quality. This study aimed to test the hypothesis that the combined use of sugarcane mulch, peanut cultivation, and herbicide application would affect soil CO₂ fluxes, soil chemical ...
Heytor Lemos Martins +7 more
wiley +1 more source
A ocorrência de plantas daninhas dicotiledóneas tem limitado o aumento da área de cultivo de girassol no Brasil, devido ao seu impacto sobre a produtividade. Isso se deve à escassez de produtos registrados para a cultura com amplo espectro de ação.
G. Santos +6 more
doaj +1 more source
PERSISTENCE OF IMIDAZOLINONES IN SOILS UNDER A CLEARFIELD SYSTEM OF RICE CULTIVATION [PDF]
The commercial mixture of imazethapyr and imazapic herbicides has been used for the control of red rice and several other species of weeds found in rice crops; this system called Clearfield. However, its use may limit the succession of non-tolerant crops
M.F. SOUZA +6 more
doaj +1 more source
Key management practices driving soybean yield variability in lowland fields of southern Brazil
Abstract Soybean [Glycine max (L.) Merr.] production in the lowlands of Rio Grande do Sul, Brazil, covers more than 50% of the area traditionally cropped with irrigated rice. However, soybean yields in lowland fields average 3.0 Mg ha−1, which is well below the potential yield (6.2 Mg ha−1) estimated for highland areas.
Eduardo Lago Tagliapietra +14 more
wiley +1 more source
Adsorption and degradation of imazapic in soils under different environmental conditions - Fig 2
Imazapic adsorption ratio under (a) different shaking times, (b) adsorption isotherms of imazapic. Each data point in the figure is the mean of three replicates. Error bars represent the SD of the mean.
Wangcang Su (2081101) +8 more
core +1 more source

