Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Organic Eprints
País:  Germany
Título:  Nutrient turnover and losses during composting of farmyard manure. Results of outdoor experiments over 11 years
Autores:  Raupp, Joachim
Oltmanns, Meike
Data:  2005
Ano:  2005
Palavras-chave:  Air and water emissions
Composting and manuring
Resumo:  This paper tries to quantify losses of dry matter and nutrients and to look for parameters relevant to the risk of losses. We used data from 14 outdoor experiments carried out in 11 years with cattle manure. Nitrogen (N) rich manures seem to be predestined to have high dry matter and N losses during com-posting. In cases of high temperatures in the thermophilic stage we also observed also high dry matter losses, but not necessaryly high N losses. This may be a hint that an intensive decomposition of or-ganic matter is combined with a strong heat development. However, temperature level was independ-ent from the original N content. K losses were not correlated with any of the investigated parameters, not even with water content. Composted manure was about 60% of the original dry matter (calculated by increase of ash content). However, nutrient losses were much lower. Compared to the original con-tents, approx. 33% N and 39 or 17% K (based on ash contents) have been lost during the entire period of up to 223 days.
Tipo:  Conference paper, poster, etc.
Idioma:  Inglês
Identificador:  http://orgprints.org/4469/1/Raupp_Oltmanns_2005_nutrient_turnover.doc

Raupp, Joachim and Oltmanns, Meike (2005) Nutrient turnover and losses during composting of farmyard manure. Results of outdoor experiments over 11 years. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
Relação:  http://orgprints.org/4469/
Formato:  source
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional