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Carlos Eduardo da Silva Oliveira,Tiago Zoz,Eduardo Pradi Vendruscolo,Agner de Freitas Andrade,Cássio de Castro Seron,Travis Wilson Witt 한국작물학회 2020 Journal of crop science and biotechnology Vol.23 No.5
The sowing operation is crucial for the proper initial establishment of seedlings and their development. However, there is a lack of studies about the eff ects of sowing depth of rice, as well as technologies that aid to mitigate the prejudicial eff ects caused by depth. In this way, the present work aimed to evaluate the initial growth of rice plants inoculated with Azospirillum brasiliense and treated with biostimulant sowed at diff erent depths. Randomized complete block design with four replica�tions was used, in a 4 × 4 factorial scheme. The fi rst factor was composed of diff erent seed treatments (a, control—with�out treatment; b, inoculation with A. brasilense ; c, seed treatment with Stimulate® and d, inoculation with A. brasilense associated with seed treatment with Stimulate ® ). The second factor was composed of four sowing depths (1.0, 3.0, 5.0 and 7.0 cm). Treatment of rice seeds with A. brasilense and Stimulate® decreases the rate of emergence. The sowing at 7 cm depth decreases in 41.44% of the emergence, when compared to sowing at 1 cm. Inoculation with A. brasilense and sowing at increasing depths are prejudicial to the growth of rice crop.