Results 71 to 80 of about 91,550 (356)

Genetic variation for nutrient use efficiency in maize under different tillage and fertilization regimes with special emphasis to plant microbe interaction [PDF]

open access: yes, 2010
Conservation tillage (no-till and reduced tillage) brings many benefits with respect to soil fertility and energy use, but it also has drawbacks regarding the need for synthetic fertilizers and herbicides.
Berner, A.   +6 more
core  

Determination and Occurrence of Phenoxyacetic Acid Herbicides and Their Transformation Products in Groundwater Using Ultra High Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry [PDF]

open access: yes, 2014
This research is funded by the National Development Plan, through the Research Stimulus Fund, administered by the Department of Agriculture, Food and Marine (RS-544) and the Teagasc Walsh Fellowship Scheme.peer-reviewedA sensitive method was developed ...
Coxon, Catherine E.   +4 more
core   +2 more sources

A zero-valent iron and organic matter mixture enhances herbicide and herbicide degradation product removal in subsurface waters [PDF]

open access: yesJournal of Environmental Sciences, 2017
The pesticide atrazine, its degradation products, and 2,6-dichlorobenzamide (BAM) are persistent in groundwater environment. We studied whether their dissipation can be enhanced with a mixture of a complex carbon source and zero-valent iron (ZVI) called EHC®.
Kerminen, Kaisa Aino Maria   +2 more
openaire   +3 more sources

Production of bacterial cellulose by Acetobacter okinawensis AC2 and its application as a bioadsorbent for azo dye removal

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Bacterial cellulose (BC) is a naturally occurring polysaccharide that has attracted considerable interest in various fields, including biological and biomedical applications, due to its biodegradability, biocompatibility, high degree of crystallinity, and outstanding physicochemical characteristics. It is widely used in several industries such
Mehmet Akif Omeroglu   +2 more
wiley   +1 more source

An Evaluation of Herbicides for Broadleaf-Weed Control in Rapeseed: Efficacy, Phytotoxicity, and Soil Persistence Studies [PDF]

open access: yes, 1984
At the recommended rates (1.0 lb/A for trifluralin, ethalfluralin, EL5261; 0.75 lb/A for dinitramine; 1.2 lb/A for nitrofen), none of the herbicides we evaluated in these studies reduced rapeseed stands, yields, or test weights. However, at higher rates (
Conn, Jeffery S., Knight, Charles W.
core  

Evaluation of a TiO2 photocatalysis treatment on nitrophenols and nitramines contaminated plant wastewaters by solid-phase extraction coupled with ESI HPLC–MS [PDF]

open access: yes, 2009
Nitration reactions of aromatic compounds are commonly involved in different industrial processes for pharmaceutical, pesticide or military uses. For many years, most of the manufacturing sites used lagooning systems to treat their process effluents.
Hafidi, Mohamed   +5 more
core   +3 more sources

Comparative field‐scale assessment of TLUD and Kon‐Tiki biochar systems: agronomic performance and net CO2e‐based techno‐economics

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Post‐harvest agricultural residues in Latin America are commonly underutilized, leading to greenhouse gas emissions and lost opportunities for bio‐based value creation. This study tests the hypothesis that decentralized, farmer‐scale pyrolysis technologies can deliver comparable agronomic benefits while exhibiting distinct techno‐economic and ...
Juan F. Saldarriaga   +7 more
wiley   +1 more source

Longitudinal Study of Thyroid Hormones between Conventional and Organic Farmers in Thailand

open access: yesToxics, 2020
Many pesticides are endocrine-disrupting chemicals that can interfere with hormone levels. This study aimed to assess the longitudinal impact of exposure to pesticides on thyroid hormone levels, including Thyroid Stimulating Hormone (TSH), Free ...
Noppanun Nankongnab   +5 more
doaj   +1 more source

Weeds and crop yields under conservation tillage in organic farming. [PDF]

open access: yes, 2010
Conservation tillage in conventional agriculture tends to make the cropping systems more dependent on herbicides. Organic farming principles could solve this problem. However, direct drilling under a cover crop in organic farming remains difficult.
Aveline, Anne   +4 more
core  

Preemergence Herbicides for Radishes Grown on Organic Soils

open access: yesHortScience, 1986
Abstract Three studies were conducted to evaluate preemergence herbicides for weed control efficacy and crop tolerance in radishes (Raphanus sativus L.) grown on organic soils. Herbicides evaluated were CDEC, metolachlor, alachlor, pendimethalin, thiobencarb, propachlor, metribuzin, and pronamide.
openaire   +1 more source

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