Article Dans Une Revue Agronomy for Sustainable Development Année : 2015

Polysaccharides as safer release systems for agrochemicals

Jhones Luiz de Oliveira
  • Fonction : Auteur
Leonardo Fernandes Fraceto
  • Fonction : Auteur correspondant
  • PersonId : 977892

Connectez-vous pour contacter l'auteur
Baljit Singh
  • Fonction : Auteur

Résumé

Agrochemicals are used to improve the production of crops. Conventional formulations of agrochemicals can contaminate the environment, in particular in the case of intensive cropping. Hence, there is a need for controlled-release formulations of agrochemicals such as polysaccharides to reduce pollution and health hazards. Natural polysaccharides are hydrophilic, biodegradable polymers. This article reviews the use of polysaccharides in the form of micro- and nanoparticles, beads and hydrogels. The main points are: (1) slow release formulations minimize environmental impact by reducing agrochemical leaching, volatilization and degradation. For example, 50 % of the encapsulated insecticide chlorpyrifos is released in 5 days, whereas free chlorpyrifos is released in 1 day. (2) Slow release formulations increase the water-holding capacity of soil. (3) Slow release formulations better control weeds in the long run. (4) Polymer-clay formulations store ionic plant nutrients. (5) Polymer hydrogel formulations reduce compaction, erosion, and water run-off. They increase soil permeability and aeration, infiltration rates, and microbial activity, and, in turn, plant performance. In conclusion, polysaccharide formulations can be used for safer use of agrochemicals.

Fichier principal
Vignette du fichier
13593_2014_Article_263.pdf (1.21 Mo) Télécharger le fichier
Origine Publication financée par une institution
Licence
Loading...

Dates et versions

hal-01284274 , version 1 (07-03-2016)

Licence

Identifiants

Citer

Estefânia Vangelie Ramos Campos, Jhones Luiz de Oliveira, Leonardo Fernandes Fraceto, Baljit Singh. Polysaccharides as safer release systems for agrochemicals. Agronomy for Sustainable Development, 2015, 35 (1), pp.47-66. ⟨10.1007/s13593-014-0263-0⟩. ⟨hal-01284274⟩
356 Consultations
5293 Téléchargements

Altmetric

Partager

  • More