Evaluación del simbionte Azolla caroliniana-Anabaena azollae sobre la agroproductividad del cultivo de arroz y las propiedades químicas del suelo.

The present research was carried out in the area of CIIDEA (City of Research, Innovation and Agricultural Development) of the Escuela Superior Politécnica Agropecuaria de Manabí, in the months of August 2015 to January 2016, was executed with the purpose of improving the Productivity of the rice crop and to evaluate the incidence of the symbiont Azolla caroliniana-Anabaena azollae on the chemical properties of the soil when applied in different dosages. Five treatments were proposed with four replicates: T1 (30 Tm / ha of fresh azolla), T2 (40 Tm / ha fresh azolla), T3 (50 Tm / ha fresh azolla), T4 (absolute control) and T5 (chemical control) . The experimental material used was the INIAP-15 rice variety. The control with chemical fertilization was the treatment that obtained the best results, but it should be noted that azolla treatment (50 Tm / ha) maintained similar statistical conditions and therefore is considered an alternative to improve rice crop productivity. From the point of view of the soil chemical conditions, the application of the symbiont stabilized the properties of the same, contributing to maintain its fertility. And the best economic option was T3 (application of 50 Tm of fresh azolla / ha), which had the highest net profit, and 5.6% rate of return.

• Huvudupphovsman: Delgado Cedeño, David Antonio (author)
• Övriga upphovsmän: Zorrilla Cabrera, Cynthia Marilin (author)
• Materialtyp: bachelorThesis
• Språk: spa
• Publicerad: 2017
• Ämnen: Azolla; Anabaena; Simbionte; CIIDEA
• Länkar: http://repositorio.espam.edu.ec/handle/42000/534