Desempenho agronômico de mandioca de mesa manejada com irrigação e uso de cobertura plástica do solo

Abstract

Although cassava is recognized for its high tolerance to drought, irrigation is showing satisfactory results. However, few studies have been carried out to determine the effects of soil cover, irrigation and the combination of both on crop development. Theobjective of this study was to determine the influence of irrigation and plastic soil cover on the agronomic performance of sweet cassava. The planting was done in beds, in thedouble row system with the stem cutingsimplanted vertically, with 0.60m between rows and 0.80 m between plants. The following treatments were applied: naked non-irrigated bedding, bedding covered with non-irrigated black polyethylene plastic, naked bedding with irrigation and bedding covered with irrigated black polyethylene plastic. Irrigation wasperformedby conventional sprinkling, based on the daily soil water balance at the effective depth of the cassava root system in the different stages of crop development. The characters evaluated were: shoot weight, root yield, starch percentage in the roots and time for cooking. The expression of the characters shoot weight, root yield and starch percentage in the roots wassignificantly influenced by irrigation managementandsoil cover. The individual use of irrigation and plastic soilcover technologies led to increases in root yieldof 55% and 13%, respectively, and when used together, root yieldincreased by 89%.

Caracterização morfológica de clones elite biofortificados de mandioca de mesa com polpa rosada / Morphological characterization of elite biofortified sweet cassava clones with pinkish pulp

“…Na região do Cerrado, trabalhos de pesquisa demonstram que a cultura da mandioca apresenta grande potencial de expansão, uma vez que existe mercado, a produtividade é elevada e os Brazilian Journal of Animal and Environmental Research, Curitiba, v.4, n.1, p. 1384-1398 jan./mar. 2021 produtores tem muita experiência com o sistema de produção (Paz et al, 2020;Antonini et al, 2020;Mendonça et al, 2020). Nesse contexto, a possibilidade de se disponibilizar raízes de mandioca com licopeno é uma das formas de melhorar a nutrição da população e de agregar valor às cultivares destinadas ao consumo humano.…”