RESUMO -A técnica do recobrimento de sementes vem sendo utilizada com a finalidade de incorporar produtos fitossanitários, hormônios, micronutrientes, agentes biológicos e polímeros que propiciem um melhor desempenho de sementes e plântulas. O objetivo principal deste trabalho foi avaliar o efeito do recobrimento das sementes de soja cv. BRS 153 na qualidade das sementes e no desempenho das plântulas. O revestimento foi realizado com três doses de micronutrientes (CoMoB): 1, 2 e 4mL por quilo de sementes; um fungicida com mistura de Carbendazim + Thiram (Derosal Plus ® ) e um complexo polímero + corante (Laborsan Red Solid Pam Bril®). As avaliações da qualidade das sementes foram realizadas através do teste de germinação, índice de velocidade de germinação, envelhecimento acelerado, comprimento de plântula e emergência em casa de vegetação submetendo as sementes a um estresse hídrico de uma semana e emergência em campo. A aplicação conjunta de fungicidas, micronutrientes e polímero assegura melhor uniformidade aos tratamentos (aderência, distribuição e coloração) e não prejudica na qualidade e desempenho das sementes de soja até o limite de 2mL de micronutrientes por quilograma de sementes. A dose de micronutriente de 4mL / kg de sementes é fitotóxica.Termos para indexação: Glycine max, revestimento, qualidade fisiológica. SOYBEAN SEED COATING WITH MICRONUTRIENTS, FUNGICIDE AND POLYMERABSTRACT-Seed coating is being used to incorporate pesticides, biological hormones, micronutrients and polymers that provide better performance for seeds, seedlings and plants in advanced stages of the crop. The main objective of this study was to evaluate the effect of soybean seed cv. BRS 153 coating on seed quality and seedling performance. Coating was made with three doses of micronutrients: 1; 2 and 4 mL/kg seeds; one fungicide: Derosal Plus® (Carbendazim + Thiram) and a polymer (Laborsan Red Solid Pam Bril ® + color agent). Evaluations were made in the laboratory, greenhouse and in the field and consisted of standard germination, first count of germination, accelerated ageing, seedling length, emergence and germination speed index in the greenhouse and field emergence; The results allowed the following conclusions: a) coating soybean seeds with micronutrients, fungicide and polymer provide better uniformity (adherence, distribution and coloration) to the seeds. b) soybean seed coating does not affect its quality and performance up to 2mL micronutrient per kg of seed, if a limit of 6mL final liquid mixture per kg is observed; and c) micronutrient dosage of 4mL/kg seed is phytotoxic when seeds are coated.
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