Food quantity and quality of cassava affected by leguminous residues and inorganic nitrogen application in a soil of low natural fertility of the humid tropics
Data
2017-07-01
Autores
Moura-Silva, Aline Gomes [UNESP]
Ferreira Aguiar, Alana das Chagas
Jorge, Neuza [UNESP]
Agostini-Costa, Tania da Silveira
Moura, Emanoel Gomes
Título da Revista
ISSN da Revista
Título de Volume
Editor
Inst Agronomico
Resumo
The aim of this study was to test the hypothesis that the quality and quantity of biofortified cassava root in a humid tropical environment can be modified with the application of a combination of low- and high-quality residues of leguminous tree species. The experiment was designed as a 6 x 2 factorial (a combination of 4 legume species versus 2 levels of nitrogen) with 4 replications in a randomized block design and the following treatments: Gliricidia + Acacia, Gliricidia + Leucaena, Gliricidia + Clitoria, Leucaena + Acacia, Leucaena + Clitoria, and a control without legumes. We analyzed the shoot weight, number of roots/plant, root weight, root production, proximate composition, as well as the mineral, carotenoid, and pro-vitamin A contents. Root production increased with the application of high-quality residues. The protein level influenced the carotenoid content. The allelopathic effect of exotic genera - Leucaena and Acacia -, especially when combined, can decrease the mineral content such as potassium and, therefore, reduce the accumulation of starch.
Descrição
Palavras-chave
biofortification, food security, green manure, nutrients
Como citar
Bragantia. Campinas: Inst Agronomico, v. 76, n. 3, p. 406-415, 2017.