Efeitos do bioestimulante Agri Gold® (Ascophyllum nodosum) no crescimento e desenvolvimento da soja

Abstract

A cultura da soja, pode apresentar variações nas condições edafoclimáticas, que podem influenciar negativamente no desenvolvimento inicial das plântulas. Portanto os bioestimulantes podem servir de alternativa para potencializar o desenvolvimento inicial. Com a finalidade de melhorar o desempenho dessas culturas, a utilização de bioestimulantes tem crescido, principalmente por ser uma alternativa ao uso de fertilizantes minerais e por ser uma opção ecologicamente correta. Dessa forma objetivou-se verificar o efeito do Agri Gold® em aplicação foliar nos componentes de produtividade da cultura da soja. O experimento foi desenvolvido no Instituto Federal Goiano Campus Rio Verde – GO, Brasil, na safra 2021/22. Os tratamentos foram compostos levando em consideração a aplicação de bioestimulante em aplicação foliar. Foram realizadas avaliações como: altura das plantas, número de inserção de vagem, número de folhas, número de nós reprodutivos, número de vagens, matéria seca, peso de mil grãos e produção por saca. Mediante aos resultados encontrados, foi possível concluir que os tratamentos empregados não influenciaram significativamente nas variáveis avaliadas, portanto são necessários mais estudos para corroborar ou refutar os resultados encontrados neste estudo.

Effect of Applying Mixed Organomineral Fertilizer as a Biostimulant on Soybean Yield

“…There was a significant difference between the phenological stages, with the highest average yield being observed when the application was made at the R 5 stage, with a 7.93% increase. A similar result was found by Silva et al (2023) in a study aimed at verifying the effect of the Agri Gold ® biostimulant in foliar application at different phenological stages in the soybean crop, in which the highest yields were observed in applications made at the R 5 stage and in application at the V 4 +R 1 stages, with yields of 5659.8 and 5759.4 kg ha -1 , respectively, while the control (no application) achieved a yield of 4727.4 kg ha -1 . Revista de Agricultura Neotropical, Cassilândia-MS, v. 11, n. 2, e8303, Apr./June, 2024.…”

“…A similar result was found by Silva et al (2023) in a study aimed at verifying the effect of the Agri Gold ® biostimulant in foliar application at different phenological stages in the soybean crop, in which the highest yields were observed in applications made at the R 5 stage and in application at the V 4 +R 1 stages, with yields of 5659.8 and 5759.4 kg ha -1 , respectively, while the control (no application) achieved a yield of 4727.4 kg ha -1 . Tartaro et al (2021), on the other hand, found no significant difference in soybean yields with the application of a plant regulator formulated with 0.009% Kinetin, 0.005% Gibberellic Acid, and 0.005% 4-indol-3-yl butyric acid at different stages of crop development (V 2 ; V 5 ; R 1 ; R 3 ), although the application at stage R 1 provided an increase of 18% compared to the control treatment.…”

Soybean response (Glycine max L.) under the use of biostimulants: A literature review

“…Silva and Sponchiado (2022), evaluating a biostimulant with biological assets from the seaweed extract Ascophyllum nodosum, as an alternative to increase the productivity of soybeans, observed increasement in the number of grains per plant, increasing the productivity of soybeans. On the other hand, Silva et al (2023), observing the effects of the biostimulant Agri Gold ® (Ascophyllumnodosum) on soybean growth and development, observed significant positive results only for height plants variables and production per bag, concluding that further studies are needed to corroborate or refute the found results by the authors. Repke et al (2022) when studying the use of biostimulants based on the extract of the seaweed Ascophyllum nodosum (L.) to increase soybean tolerance to high temperatures, found that foliar application improved the biometric and production characteristics, resulting in a larger productivity.…”