Controlled release of acetochlor from poly (butyl methacrylate-diacetone acrylamide) based formulation prepared by nanoemulsion polymerisation method and evaluation of the efficacy

Guo, Yanzhen; Yang, Qian; Yan, Wei; Li, Bing; Qian, Kun; Tian, Li; Xiao, Wei; He, Lin

doi:10.1080/03067319.2014.930844

Cited by 16 publications

(5 citation statements)

References 31 publications

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“…everta), and several nonfood perennial bioenergy crops. The active ingredient of encapsulated herbicides like Warrant® is often enclosed in a shell-like matrix of organic and inorganic polymers, which protects against degradation and results in a slow, gradual release of the herbicide (Guo et al 2014;Li et al 2008;Rao 2000). In contrast, the active ingredient in emulsifiable concentrate (EC) herbicide formulations is often blended with organic solvents and surfactants to form an emulsion when diluted in water and is readily available for plant uptake upon activation (Rao 2000).…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, the active ingredient in emulsifiable concentrate (EC) herbicide formulations is often blended with organic solvents and surfactants to form an emulsion when diluted in water and is readily available for plant uptake upon activation (Rao 2000). For microencapsulated (ME) formulations of herbicides, the polymer shell will imbibe water from the soil and in turn release herbicide into the soil profile via diffusion (Guo et al 2014). For EC formulations, the herbicide will simply desorb from soil colloids and enter the soil solution, where it can be readily taken up by germinating plants.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Formulation and Rate on Rice Tolerance to Early-Season Applications of Acetochlor

Fogleman

Norsworthy²,

Barber

et al. 2018

Weed Technol

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Acetochlor (WSSA Group 15) is a very-long-chain fatty acid–inhibiting herbicide used to control grass weed species in row crops and could potentially be effective when used in a rice herbicide program. A field study was conducted in 2016 and 2017 at four locations to determine the effects of acetochlor formulation and rate on rice tolerance. Overall, rice was more tolerant to the microencapsulated (ME) formulation of acetochlor than to the emulsifiable concentrate (EC) formulation, likely because of the potential for immediate absorption of acetochlor from the EC formulation following rainfall. Differences in rainfall among experimental sites and years caused variation in acetochlor activation and influenced crop injury. In all environments, PRE applications of either formulation resulted in the greatest injury at 2 WAT (61%), while injury following delayed PRE (DPRE) or early POST (EPOST) applications averaged 30% and 16%, respectively. When ME acetochlor was applied EPOST, rough rice yield was 97% of nontreated rice or 9,020 kg ha−1, indicating that applications should be delayed until this stage to minimize crop damage and maximize yield.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Formulation and Rate on Rice Tolerance to Early-Season Applications of Acetochlor

Fogleman

Norsworthy²,

Barber

et al. 2018

Weed Technol

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“…Organic nanomaterials are exceptional materials for the synthesis of nanoherbicides, and they can be built on polymers, synthetic organic materials [65,66], lipids, lignocellulosic materials, proteins, and complex macromolecules such as dendrimers [67][68][69][70][71]. Generally, various techniques have been reported to create nanoherbicides, but the nanoemulsion method is the most often used method [72][73][74][75]. Polymers are broadly used in nanoherbicides for preparation because of their biodegradability, affordability, and biocompatibility [76,77].…”

Section: Nanoherbicides Based On Organic Nanomaterialsmentioning

confidence: 99%

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

Zargar,

Bayat,

Saquee

et al. 2023

Agriculture

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The number of effective herbicides available to farmers is steadily decreasing due to increasing herbicide resistance. It seems very important to address and effectively deal with the main weed management challenges (low crop yield and environmental pollution) by investigating the potential of newly introduced materials, such as biocompatible polymer-based nanoparticles. The current review aims to encourage agricultural or environmental researchers to conduct new research on the synthesis and application of modified herbicides, such as nanoherbicides, for application in weed management and to provide a comprehensive foundation on the topic. Such nanosystems could help with the promotion of the controlled release of active ingredients and extend their action time, resulting in a reduction in dose and application number; improve the physical and chemical characteristics of the herbicide to increase foliar adhesion; prevent degradation that results from environmental factors (such as sunlight, temperature, microorganisms, or pH); and decrease herbicide leaching and contamination of the environment. Furthermore, it has been indicated that some polymeric nanocarriers can penetrate biological barriers, including membranes and plant cell walls, and translocate across vascular tissues, resulting in a more efficient delivery of active ingredients. Poly(epsilon-caprolactone) is a biocompatible material that is easily decomposable by enzymes and fungi. PCL nanoparticles could be applied as nanocarriers of herbicides in agriculture due to their low toxicity, their potential for large-scale synthesis from inexpensive materials, their ability to dissolve herbicides, their high loading capacity, and their ability to help minimize the chemical decomposition of herbicides.

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“…In this case, it is consensus to refer to the term nano when nanoparticles are higher than 100 nm. Materials like clay minerals (bentonite, smectite, chaolite, montmorillonite), LDHs anionic clay (layered double hydroxides), lipid (waxes, triglycerides, fatty acid, surfactants), inorganic porous (silica, ceramic, polytriphenylamine), natural polymers (cellulose, starch, gelatin, albumin, chitosan), synthetic polymers (polyamidoamine, polyethylene oxide, polylactide, cyanoacrylates), among others, have been used for nanoencapsulation in systems classified like physical [10,21,28,29,62]. Agrochemicals encapsulate in the physical systems are referred to as internal or filler material entrapped in nanoparticles.…”

Section: Physical and Chemical Systems For Agrochemical Deliverymentioning

confidence: 99%

Nanopesticides in Agriculture: Benefits and Challenge in Agricultural Productivity, Toxicological Risks to Human Health and Environment

Chaud

Souto

Zielińska

et al. 2021

Toxics

156

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Nanopesticides are nanostructures with two to three dimensions between 1 to 200 nm, used to carry agrochemical ingredients (AcI). Because of their unique properties, the loading of AcI into nanoparticles offers benefits when compared to free pesticides. However, with the fast development of new engineered nanoparticles for pests’ control, a new type of environmental waste is being produced. This paper describes the nanopesticides sources, the harmful environmental and health effects arising from pesticide exposure. The potential ameliorative impact of nanoparticles on agricultural productivity and ecosystem challenges are extensively discussed. Strategies for controlled release and stimuli-responsive systems for slow, sustained, and targeted AcI and genetic material delivery are reported. Special attention to different nanoparticles source, the environmental behavior of nanopesticides in the crop setting, and the most recent advancements and nanopesticides representative research from experimental results are revised. This review also addresses some issues and concerns in developing, formulating and toxicity pesticide products for environmentally friendly and sustainable agriculture.

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Controlled release of acetochlor from poly (butyl methacrylate-diacetone acrylamide) based formulation prepared by nanoemulsion polymerisation method and evaluation of the efficacy

Cited by 16 publications

References 31 publications

Influence of Formulation and Rate on Rice Tolerance to Early-Season Applications of Acetochlor

Influence of Formulation and Rate on Rice Tolerance to Early-Season Applications of Acetochlor

New Advances in Nano-Enabled Weed Management Using Poly(Epsilon-Caprolactone)-Based Nanoherbicides: A Review

Nanopesticides in Agriculture: Benefits and Challenge in Agricultural Productivity, Toxicological Risks to Human Health and Environment

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