Effects of Fertilization Types and Base Saturation on the Growth and Water Productivity in Panicum maximum cv. BRS Zuri

Niclene Ponce Rodrigues de Oliveira, Edna Maria Bonfim-Silva (), Tonny José Araújo da Silva, Patrícia Ferreira da Silva, Rosana Andréia da Silva Rocha, Luana Aparecida Menegaz Meneghetti, Alisson Silva Costa Custódio, Salomão Lima Guimarães, Thiago Franco Duarte and Marcio Koetz
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Niclene Ponce Rodrigues de Oliveira: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Edna Maria Bonfim-Silva: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Tonny José Araújo da Silva: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Patrícia Ferreira da Silva: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Rosana Andréia da Silva Rocha: Postgraduate Program in Tropical Agriculture, Faculty of Agronomy and Animal Science—FAAZ, Federal University of Mato Grosso, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá 78060-900, MT, Brazil
Luana Aparecida Menegaz Meneghetti: Postgraduate Program in Tropical Agriculture, Faculty of Agronomy and Animal Science—FAAZ, Federal University of Mato Grosso, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá 78060-900, MT, Brazil
Alisson Silva Costa Custódio: Postgraduate Program in Tropical Agriculture, Faculty of Agronomy and Animal Science—FAAZ, Federal University of Mato Grosso, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá 78060-900, MT, Brazil
Salomão Lima Guimarães: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Thiago Franco Duarte: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil
Marcio Koetz: Department of Agricultural Engineering, Institute of Agricultural and Technological Sciences—ICAT, Federal University of Rondonópolis, Av. dos Estudantes, 5055, Cidade Universitária, Bloco C, Rondonópolis 78736-900, MT, Brazil

Agriculture, 2023, vol. 13, issue 10, 1-18

Abstract: Fertilization management is essential for forage production. However, excessive use of synthetic fertilizers causes environmental imbalances. An alternative to reduce these effects is to seek alternative fertilizers, such as wood ash produced from agro-industrial waste, when integrated with appropriate base saturation management. This study aims to compare the effects of fertilization with wood ash (WA), organomineral (OM), and mineral (M) fertilizers associated with different levels of base saturation on the growth and water productivity of Panicum maximum cv. BRS Zuri. The experiment was conducted in a greenhouse, using a randomized block design in a 3 × 3 factorial arrangement. The treatments consisted of three types of fertilization (WA, OM and M) and three levels of base saturation (0, 25%, and 50%). Leaf area, chlorophyll index, shoot dry mass and root dry mass, water consumption, and water productivity of Zuri grass were evaluated. The results showed significant increases in leaf area, with values of up to 4564.5 cm 2 .pot −1 and a chlorophyll index of up to 36.2 units. In addition, the dry mass of the aerial part reached up to 46.7 g.pot −1 , and the dry mass of the roots reached 21.7 g.pot −1 with the use of OM fertilizers. These values represent an increase of between 43.1% and 69.6% compared to the values of conventional fertilizers. In addition, water productivity reached 4.9 g.L −1 with WA-based fertilizers, an increase of around 39% compared to the values of mineral fertilizers.

Keywords: wood ash; organomineral; mineral (NPK); agricultural sustainability (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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