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Application of Dairy Manure Amended with Mineral Fertilizer on Stubble-Covered Soil: Effects on Ammonia Emissions
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Autores
Orientador(es)
Resumo(s)
The reduction in the manure application rates through enrichment with mineral fertilizer
has the potential to reduce costs, decrease environmental pollution, and extend the manure benefits
to greater acreage. A pot experiment was carried out to assess ammonia emissions from dairy
manure amended with mineral fertilizers applied on wheat stubble. The treatments were: control
(no fertilization), urea (U), calcium ammonium nitrate (AN), dairy manure (MAN), urea + dairy
manure (UMAN), and calcium ammonium nitrate + dairy manure (ANMAN). A dynamic chamber
system was used to measure NH3 emissions during seven days after soil application. UMAN and
ANMAN treatments led to higher NH3 emissions than each isolated component. This might be
motivated by the manure pH. Thus, the enrichment of dairy manure with U or AN for application on
stubble-covered soil should not be recommended. Nevertheless, some manure pre-treatments, such
as acidification, or the use of other mineral fertilizers might improve such solution
Descrição
Presented at the 1st International Electronic Conference on Agronomy, 3–17 May 2021
Palavras-chave
ammonia nitrogen organic-mineral fertilizer manure no-tillage
Contexto Educativo
Citação
Silva, A.A.; Fangueiro, D. Application of Dairy Manure Amended with Mineral Fertilizer on Stubble-Covered Soil: Effects on Ammonia Emissions. Biol. Life Sci. Forum 2021, 3, 19
Editora
MDPI