Growth and agronomic performance of soybean applied with pre-emergence herbicides

Leando Paiola  Albrecht; Alfredo Junior  Paiola Albrecht; Fabiula Patricia  Novakoski; André Felipe  Moreira Silva; Marcelo  Cassol; Mateus Dalpubel  Mattiuzzi

Growth and agronomic performance of soybean applied with pre-emergence herbicides

Autores

Leando Paiola Albrecht

Alfredo Junior Paiola Albrecht

Fabiula Patricia Novakoski

André Felipe Moreira Silva

Marcelo Cassol

Mateus Dalpubel Mattiuzzi

Editor

Universidad Nacional de Colombia

Descripción

Among the factors that limit the productive potential of soybean crops, stands out lodging, in addition to competition with weeds. Given this, the importance of soybean pre-emergence herbicides for different purposes is highlighted; however, they have to be evaluated for selectivity. This study aimed to evaluate the growth and agronomic performance of soybean applied with pre-emergence herbicides. Experiment 1 was conducted in the 2017-2018 season at two locations, and experiment 2 in the 2016-2017 season at one location. Treatments consisted of the application of pre-emergence herbicides in soybean in a randomized block design with four replications. Crop injury and chlorophyll indices (experiment 1) and variables related to agronomic performance (experiments 1 and 2) were assessed. Diclosulam and chlorimuron showed potential for application at pre-emergence to reduce plant height and consequently plant lodging. Moreover, diclosulam, chlorimuron, sulfentrazone, flumioxazin, s-metolachlor, pendimethalin, trifluralin, imazethapyr/flumioxazin, and oxyfluorfen did not negatively affect agronomic performance when applied at pre-emergence of soybean. This study evidenced the selectivity of pre-emergence herbicides to soybean.