Cultivares de mandioca de mesa eficientes e responsivas ao uso do fósforo

Flávio Pereira da Mota Silveira; Welder de Araújo Rangel Lopes; Gisele  Lopes dos Santos; Manoel Galdino dos Santos; Michele  Barboza; José Artur da Silva; Lindomar Maria da Silveira; Aurélio Paes Barros Júnior

doi:10.1590/1983-21252024v3712541rc

Authors

Flávio Pereira da Mota Silveira Academic Unit Specialized in Sgricultural Sciences, Universidade Federal do Rio Grande do Norte, Macaíba, RN, Brazil https://orcid.org/0000-0001-6324-1053
Welder de Araújo Rangel Lopes Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0002-9380-6710
Gisele Lopes dos Santos Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0002-1134-4672
Manoel Galdino dos Santos Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0003-4972-5849
Michele Barboza Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0003-0918-9690
José Artur da Silva Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0002-7337-982X
Lindomar Maria da Silveira Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0001-9719-7417
Aurélio Paes Barros Júnior Department of Agronomic and Forest Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil https://orcid.org/0000-0002-6983-8245

DOI:

https://doi.org/10.1590/1983-21252024v3712541rc

Keywords:

Manihot esculenta Cranz. Phosphate fertilizer. Efficiency. Responsiveness.

Abstract

Table cassava cultivars efficient in the use of phosphorus (P) and responsive to phosphate fertilization represent a crop option for regions with low availability of the nutrient and for crops using technological packages, such as investment in fertilization. The objective of the study was to classify table cassava cultivars regarding efficiency and responsiveness to P application in two agricultural crops. For this, four table cassava cultivars (Água Morna, BRS Gema de Ovo, Recife and Venâncio) were evaluated under conditions of low P availability (and without phosphate fertilization) and high availability (and fertilized with 240 kg ha^-1 of P₂O₅). The Água Morna cultivar proved to be efficient and responsive in the two harvests evaluated. Only the Venâncio cultivar was classified as non-efficient. There was variation in the response of the Recife cultivar between the crops evaluated.

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