Silício no tratamento de sementes melhora a germinação e crescimento inicial da soja

Abstract

Optimizing the germination rate and initial growth of soybeans can promote an increase in grain productivity. Therefore, the use of fungicide associated with the application of Silicon (Si) in seed treatment can improve germination and assist in disease control, and can favor the rapid and uniform establishment of the desired plant population. Thus, the objective of the study was to evaluate the effect of the combination of silicon and fungicides, via seed treatment, on the germination and initial growth of soybean plants. The experiment was conducted in a protected environment at the company Alvo Agrícola LTDA, in Uruçuí-PI. The experiment was conducted in randomized blocks, with four replications, evaluating 06 seed treatments: Without Si (control), With Si, Apron Fungicide, Monaris Fungicide, Si + Apron and Si + Monaris. The germination percentage and emergence speed index were reduced when the seeds received the Monares and Moraris + Si treatments. The plant height and dry mass of the shoot, root and total were increased when the seeds received the Si treatments. and Si + Apron, indicating that the element has a positive effect on plant growth, being able to stimulate and increase the biomass accumulation in the initial phase of soybeans. It is concluded that the application of Si in the treatment of soybean seeds associated or not with the fungicide Apron promotes an increase in the initial growth of soybeans