Control químico de la roya asiática de la soya (Glycine max (L) Merril.)”

The present investigation developed the theme related to the chemical control of Asian soybean rust (Glycine max (L) Merril.). Worldwide, soybean cultivation is one of the most important oilseeds, therefore it is necessary to join efforts to improve its production, which is influenced by the quality of the grain at harvest; However, the factors that limit crop productivity are linked to soil management, unfavorable environmental conditions, incidence of pests, diseases and weeds. According to the information obtained, it was determined that the losses in soybean crops, due to the resistance of the Asian rust disease, oscillate between 25 and 80%, with chemical control being a main strategy to reduce the risk of the disease; the sowing of resistant varieties is a measure to reduce the attack of the disease at a lower cost, because the application of fungicides increases production costs / ha, therefore it causes low economic income; On the Ecuadorian coast, the months of October and November are considered the most critical periods for the incidence of the disease, due to the optimal temperature and relative humidity conditions; It is necessary to establish the crop between the months of May and June to avoid the proliferation of the disease and the plots treated with Difconazole + Strobirulins, alone or in mixtures, have a lower rate of rust severity in soybean plantations.

• 1. autor: Ayala Meza, Oscar Geordano (author)
• Format: bachelorThesis
• Wydane: 2021
• Hasła przedmiotowe: Enfermedades; Roya asiática; Soya
• Dostęp online: http://dspace.utb.edu.ec/handle/49000/9277