Swine manure application methods effects on ammonia volatilization, forage quality, and yield in the Pre-Amazon Region of Brazil

Mayanna Costa, Francirose Shigaki, Bruno Alves, Peter J A Kleinman, Marcos Pereira

Research output: Contribution to journalArticle

Abstract

The use of swine manure (SM) as a nutrient source for pastures is increasingly common in Brazil, due to its low cost. However, this practice can cause N losses in agricultural soil, where ammonia (NH3) volatilization may be the main drawback, generating undesirable economic and environmental consequences. The objective of this study was to evaluate SM application methods that retain N within the system and determine how these methods affect forage yield and quality. The study was conducted in the municipality of Chapadinha, Maranhão, Brazil, and the following SM application methods were evaluated: (1) surface application, (2) incorporation at 5-cm soil depth, (3) incorporation at 10-cm soil depth, and (4) control when SM was not applied. Lower N losses due to NH3 volatilization and higher pasture yield and quality were found when SM was incorporated at 10-cm soil depth (83 kg N-NH3 ha-1 and 6.3 Mg DM ha-1, respectively, compared to 86 kg N-NH3 ha-1 and 1.5 Mg DM ha-1 for the control), whereas higher N-NH3 losses and lower pasture yield were observed when SM was applied to the soil surface (143 kg N-NH3 ha-1 and 2.6 Mg ha-1, respectively). Higher quality forage in terms of chemical composition was also observed when SM was incorporated at greater soil depth. Incorporating SM at 10-cm depth represents an efficient management to mitigate N-NH3 volatilization, and this application method is associated with significantly increased in DM yield and improved chemical composition.

Original languageEnglish (US)
Pages (from-to)311-318
Number of pages8
JournalChilean Journal of Agricultural Research
Volume74
Issue number3
DOIs
StatePublished - Sep 1 2014

Fingerprint

forage yield
pig manure
forage quality
volatilization
Amazonia
application methods
ammonia
Brazil
soil depth
pastures
chemical composition
agricultural soils
economics
nutrients

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology
  • Agronomy and Crop Science

Cite this

Costa, Mayanna ; Shigaki, Francirose ; Alves, Bruno ; Kleinman, Peter J A ; Pereira, Marcos. / Swine manure application methods effects on ammonia volatilization, forage quality, and yield in the Pre-Amazon Region of Brazil. In: Chilean Journal of Agricultural Research. 2014 ; Vol. 74, No. 3. pp. 311-318.
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Swine manure application methods effects on ammonia volatilization, forage quality, and yield in the Pre-Amazon Region of Brazil. / Costa, Mayanna; Shigaki, Francirose; Alves, Bruno; Kleinman, Peter J A; Pereira, Marcos.

In: Chilean Journal of Agricultural Research, Vol. 74, No. 3, 01.09.2014, p. 311-318.

Research output: Contribution to journalArticle

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