Growth, yield and nutrients of sweet cassava fertilized with zinc

da Silva, Jessica Aparecida [UNESP]; Leonel, Magali [UNESP]; Fernandes, Adalton Mazetti [UNESP]; de Sousa Garreto, Francisca Gyslane [UNESP]; Nunes, Jason Geter da Silva [UNESP]; Tajra, Ricardo Figueiredo [UNESP]

Growth, yield and nutrients of sweet cassava fertilized with zinc

Data

2023-01-01

Autores

da Silva, Jessica Aparecida

Leonel, Magali

Fernandes, Adalton Mazetti

de Sousa Garreto, Francisca Gyslane

Nunes, Jason Geter da Silva

Tajra, Ricardo Figueiredo

Tipo

Artigo

Resumo

The application of zinc fertilizers in the soil has been an agronomic practice to correct Zn deficiency in plants, aiming to increase productivity and/or nutritional quality. This study evaluated how zinc sulfate fertilization affects plant growth, yield performance and nutrient accumulation in the cassava ‘IAC 576-70’. The experimental design was in randomized blocks with eight replications. The treatments consisted of 0, 1.5, 3.0, 4.5 and 6.0 g p1-1 ZnSO4. Results showed improvement in yield with soil fertilization with ZnSO4, with the optimal dose of 2.5 g pl-1. The uptake of nutrients in plant parts is favored with lower doses of zinc fertilizer, with maximum points ranging from 0.8 to 3.2 g pl-1 for macronutrients and 1.6 to 3.6 g pl-1 for micronutrients. The Zn content in tuberous roots increases by more than 40% with fertilization up to 2.8 g pl-1 of fertilizer, which contributes to the nutritional value of roots.