Data/hora: 16/06/2024 09:43:02

Provedor de dados: | 194
País: | Brazil

Título:

Soil analysis as a fator of technical and economic sustainability in the production of maize for silage

Análise de solo com fator de sustentabilidade técnica e econômica na produção de milho para silagem

Autores: | Silva, Antonio Waldimir Leopoldino da; Roieski, Patrick Iury.
Data: | 2022-05-11
Ano: | 2022
Palavras-chave: | Adubação; Ensilagem; Fertilidade do solo; Ensilage; Fertilization; Soil fertility.
Resumo: | Corn silage is a roughage widely used to fill the food deficit caused by the seasonality of forage supply. In addition to being a demanding crop in soil fertility, the harvest exports all the material, increasing the extraction of nutrients. The objective of this study was to technically evaluate the fertilization used in agricultural production units (APUs) that do not carry out soil analysis (SA) prior to cultivation and to estimate the possible financial return of a properly oriented fertilization. The sample consisted of 36 APUs that adopt the non-tillage system, located in nine municipalities in Western Region of Santa Catarina State, Brazil. Before the implantation of the crop, soil sampling was carried out, but the resulting SAs were not used to recommend fertilization, which was the one usually practiced in the APU. The requirements of N, P2O5 and K2O for the expected productivity were met, respectively, in 27.8%, 22.2% and 2.8% of the RPs and the P2O5:K2O ratio of the fertilization performed (1.00:0.92) differed from the recommended (1.00:1.68). Based on the amount of fertilizer applied, the expected extraction and the limiting nutrient, it is possible to estimate an average production of 8.74 Mg/ha of dry matter. With a more balanced fertilization and the same cost, the production could reach 11.99 Mg/ha, providing an additional gain of 296 dollars per hectare. The SA-based fertilization is an important element in the search for the technical and economic sustainability of corn cultivation for silage.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.ufsm.br/extensaorural/article/view/44173

10.5902/2318179644173

Editor: | Universidade Federal de Santa Maria (UFSM)
Relação: | http://periodicos.ufsm.br/extensaorural/article/view/44173/47137
Formato: | application/pdf

Fonte:

Extensão Rural; v. 28 n. 1 (2021): Extensão Rural - jan./mar. 2021.; e2

2318-1796

1415-7802

Fonte: | Copyright (c) 2021 Extensão Rural