Selectivity, efficacy and residues of the herbicides in the weed management in the peanut crop

• Grant number: 21/10794-0
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2022
• End date: July 31, 2024
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Pedro Luis da Costa Aguiar Alves
• Grantee: Pedro Luis da Costa Aguiar Alves
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated researchers: Augusto Guerreio Fontoura Costa ; Dartanha Jose Soares ; Everton Luis Finoto ; Ignácio José de Godoy ; Marcos Doniseti Michelotto
• Associated scholarship(s): 23/12300-0 - SELECTIVITY, EFFICACY AND HERBICIDE RESIDUES FOR THE WEED MANAGEMENT IN THE PEANUT CROP, BP.TT

Abstract

Weeds in the peanut crop need to be managed to avoid yield reduction, interference on harvest and product quality. Research that allow to identify new selective herbicides to extend the number of weeds that can be controlled in different moments through the crop cycle, not resulting in residues in grains corresponded to the one of the main demands from the peanut productive chain nowadays, aiming sector competitive production and food safe. The objective of the project is to evaluate the feasibility of herbicide usage of 2,4-D, triclopyr, haloxyfop-p-methyl and fluazifop-p-butyl in different timing applications, based on residue occurrence in peanut grains, the selectivity to the crop and efficacy of weed control. Field experiments will be carried out in two locations, with sandy and clay soil textures, replicated in two crop seasons. The information obtained will permit knowledge to advance on usage of these herbicides molecules as new options for weed management in the peanut crop. In this way, the control practices could be improved, reducing the yield lose risks or other interferences on the productive process, mainly on mechanical harvest. Simultaneously, the information will contribute to advice technical and farmers in relation to the safer moment for application of these herbicides, minimizing the risk of residues on grains. With the peanut production attending the maximum residue limits of these herbicides, the peanut produced in the Brazil becomes food that has more safety and quality, making the productive chain more competitive by meeting the growing demands from different markets in Brazil and abroad. (AU)