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Exploring the Impact of Humic Biostimulants on Cassava Yield and Nutrition in Northeast Brazil

Author

Listed:
  • Maisa da Conceição Santos

    (Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil)

  • Mônica Tejo Cavalcanti

    (National Institute of the Semiarid, Av. Francisco Lopes de Almeida, s/n, Serrotão, Campina Grande 58434-700, Paraíba, Brazil)

  • Larissa Nicácio Pessoa

    (Department of Agriculture, Federal University of Paraíba, Campus Universitário III, s/n, Bananeiras 58220-000, Paraíba, Brazil)

  • Zenaide Gomes da Silva

    (Department of Agriculture, Federal University of Paraíba, Campus Universitário III, s/n, Bananeiras 58220-000, Paraíba, Brazil)

  • Allisson Miguel da Silva

    (Agricultural College Vidal de Negreiros, Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil)

  • Tancredo Souza

    (Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil)

  • Juliane Maciel Henschel

    (Graduate Program in Agronomy, Federal University of Paraíba, Areia 58397-000, Paraíba, Brazil)

  • Emmanuel Moreira Pereira

    (Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil
    National Institute of the Semiarid, Av. Francisco Lopes de Almeida, s/n, Serrotão, Campina Grande 58434-700, Paraíba, Brazil)

  • Manoel Alexandre Diniz Neto

    (Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil
    Department of Agriculture, Federal University of Paraíba, Campus Universitário III, s/n, Bananeiras 58220-000, Paraíba, Brazil)

  • Belísia Lúcia Moreira Toscano Diniz

    (Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras 58220-000, Paraíba, Brazil
    Department of Agriculture, Federal University of Paraíba, Campus Universitário III, s/n, Bananeiras 58220-000, Paraíba, Brazil)

Abstract

Cassava is a staple food mainly produced with low management inputs, causing soil depletion and low yields. The use of organic inputs, such as humic substances (HSs), represents a sustainable alternative to increase cassava growth and production, mainly in semi-arid regions such as the Brazilian Northeast. Thus, the objective was to evaluate the foliar application of a biostimulant based on humic substances on the morphophysiology, production, and mineral nutrient contents of cassava. The biofortified cultivar BRS Dourada was grown under field conditions and foliar application of a biostimulant based on humic substances (BHSs, treated plants) or water (untreated, control). The experiment was conducted in a randomized block design with four repetitions. At 225 days after planting, the growth, productivity, and mineral nutrient contents of soil, roots, and leaves were determined. No differences between treated and untreated plants were found for growth and productivity (average 15.2 t ha −1 ). On the other hand, BHS treatment reduced net carbon assimilation, water use efficiency, and carboxylation efficiency by 34%, 24%, and 47%, respectively. Moreover, BHS treatment reduced nutrient uptake from soil, and Na and K contents in roots and leaves, respectively. A foliar BHS application is not recommended for cassava production in the conditions evaluated here.

Suggested Citation

  • Maisa da Conceição Santos & Mônica Tejo Cavalcanti & Larissa Nicácio Pessoa & Zenaide Gomes da Silva & Allisson Miguel da Silva & Tancredo Souza & Juliane Maciel Henschel & Emmanuel Moreira Pereira & , 2024. "Exploring the Impact of Humic Biostimulants on Cassava Yield and Nutrition in Northeast Brazil," Sustainability, MDPI, vol. 16(10), pages 1-11, May.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:10:p:4088-:d:1393827
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    References listed on IDEAS

    as
    1. Mirela Natália Santos & Jhonatan Rafael Zárate-Salazar & Reginaldo Carvalho & Ulysses Paulino Albuquerque, 2020. "Intraspecific variation, knowledge and local management of cassava (Manihot esculenta Crantz) in the semiarid region of Pernambuco, Northeast Brazil," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(4), pages 2881-2903, April.
    2. Fábio de Araújo Visses & Paulo Cesar Sentelhas & André Belmont Pereira, 2018. "Yield gap of cassava crop as a measure of food security - an example for the main Brazilian producing regions," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 10(5), pages 1191-1202, October.
    3. Aditya Parmar & Barbara Sturm & Oliver Hensel, 2017. "Crops that feed the world: Production and improvement of cassava for food, feed, and industrial uses," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 9(5), pages 907-927, October.
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