Produtividade da cultivar local “Sorgo Vermelho” e BRS Ponta Negra em diferentes arranjos de plantio no Território Chapada Vale do Rio Itaim, semiárido piauiense

Abstract

The study was carried out in the Chapada do Rio Itaim region, in the semi-arid region of Piauí, where sheep and goat farming is significant for family farming. The experiment used three planting arrangements (traditional, in holes and in furrows) and two cultivars ("BRS Ponta Negra" and "Sorgo Vermelho") aiming to identify the best strategy to increase forage production and adapt cultivation techniques to the environment. Local semi-arid region. The parameters evaluated were plant height (AP), stem diameter (DC), in addition to the production of green and dry matter, stem+leaf, panicle and total production. The results indicated that there was no significant interaction between cultivars and planting method. However, traditional planting was statistically inferior to planting in furrows for plant height and inferior to planting in pits and furrows for stalk and leaf dry matter (PMSCF) and total (PMST) productivity. As for the cultivars evaluated, the cultivar “Sorgo Vermelho” showed higher panicle productivity in terms of green matter (PMVP) and dry matter (PMSP) when compared to BRS Ponta Negra, with no significant differences between these cultivars for the other parameters. This work concluded that "Red Sorghum" is suitable for planting in the studied region, being a viable option for producers with limited areas, and that the choice of the furrow planting method can optimize productivity, especially in smaller areas.