SOWING ARRANGEMENTS OF SORGHUM WITH BRACHIARIA FOR FORAGE PRODUCTION AND SOIL COVER

CÉLIA DAS EIRAS LUDOVINA DGEDGE MELO, FRANCISCO CLÁUDIO LOPES DE FREITAS, ANTONIO DA PIEDADE MELO, EDIMAR ANTONIO CAMPOS COSTA, LEONARDO DUARTE PIMENTEL

Abstract


The objective of this study was to evaluate the dry matter production and morphological parameters of sorghum and brachiaria (signalgrass, specifically palisade grass) grown simultaneously for forage production, along with the formation of soil cover in the off-season. The treatments were in a randomized block design and consisted of three different sowing arrangements: sorghum + two rows of brachiaria (between sorghum rows), sorghum + two rows of brachiaria (one in the row + another between the sorghum rows), and sorghum with brachiaria broadcast; as well as sorghum and brachiaria grown in monoculture. The dry matter yield of sorghum in the 1st cycle was higher in the arrangement of sorghum alone, obtaining around 12.01 t ha-1. The highest total dry matter yield was obtained in the arrangement of sorghum with broadcast brachiaria, with 11.01 t ha-1 for sorghum and 3.75 t ha‑1 for the brachiaria. In the 2nd cycle, soil cover was greatest in the brachiaria monoculture and in the arrangement of sorghum with broadcast brachiaria, at 95% and 86%, respectively. With the aim of producing forage sorghum together with the formation of adequate soil cover by brachiaria, the arrangement of sorghum with broadcast brachiaria is promising.


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DOI: https://doi.org/10.18512/rbms2021vol20e1221