Data/hora: 11/06/2024 15:57:17

Provedor de dados: | 21
País: | Germany
Título: | Evaluation of nitrogen utilization by means of the concept of primary production balance
Autores: | Seuri, Pentti; Kahiluoto, Helena.
Data: | 2005
Ano: | 2005
Palavras-chave: | Cereals; Pulses and oilseeds.
Resumo: | Primary production balance (PPB) indicates the ratio (*) between harvested nutrients and nutrients put into crop production from outside the system (=primary nutrients). The PPB is independent of the final output (crop vs. animal products) and can be used to evaluate different systems (farms). The utilization of nitrogen (N) was evaluated by means of the PPB on nine organic farms, stockless and mixed ones, in eastern Finland. The mixed farms were able to reach a remarkably higher primary production balance (1.0 – 1.2) compared with the stockless ones (0.5). Values higher than 1.0 indicate recirculation of nutrients. Other components of the high PPB were legumes as nitrogen source and optimum livestock density.
Tipo: | Conference paper, poster, etc.
Idioma: | Inglês

Identificador:

http://orgprints.org/4475/4/Seuri_Kahiluoto_4p_revised%2Ded.doc

Seuri, Pentti and Kahiluoto, Helena (2005) Evaluation of nitrogen utilization by means of the concept of primary production balance. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]

Relação: | http://orgprints.org/4475/
Formato: | source