Abstract

RUIZ-SANCHEZ, Michel et al. Application of EcoMic^® biofertilizer in technified seedbeds for mechanized transplanting of seed rice. cultrop [online]. 2021, vol.42, n.4  Epub Dec 30, 2021. ISSN 1819-4087.

The research was conducted at "Los Palacios" Scientific and Technological Base Unit, in February and March 2020, with the aim of evaluating the effect of EcoMic® biofertilizer application in a technified seedbed for mechanized transplanting of seed rice. The biofertilizer was applied at a dose of 6 % based on seed mass on four rice cultivars (INCA LP-7, Roana, Guillemar and José). Sowing was carried out in plastic trays (0.60 m x 0.30 m x 0.03 m), containing substrate with a 1:1 (v/v) ratio of cow manure organic matter and soil, following a completely randomized block experimental design, with four replications. Plant height, number of leaves, root length, aerial and root dry mass were evaluated 18 days after emergence. With the application of EcoMic® biofertilizer at the seedling stage, rice plants colonized by Arbuscular Mycorrhizal Fungi (AMF) were transplanted, which have a greater development in terms of height, root length, aerial and root dry mass, compared to untreated plants. The genetic component has a marked effect on plant growth and development, even when plants are colonized by AMF. Based on these results, the EcoMic® biofertilizer application is suggested as a nutritional alternative in seedbeds for mechanized rice transplanting.

Keywords : Arbuscular mycorrhizal fungi; colonization; Glomus; Oryza sativa.

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