| Registro completo |
| Provedor de dados: |
IPB - Escola Superior Agrária
|
| País: |
Portugal
|
| Título: |
Influence of mineral and organic nitrogen on tuber dry matter and specific gravity of potatoes
|
| Autores: |
Rodrigues, M.A.
Martins, Fernando
Coutinho, João
|
| Data: |
2011-02-04
|
| Ano: |
1998
|
| Resumo: |
Dry matter percentage (DIv1%) is an important qualitative characteristic of potato tubers. Frequently N fertilisation significantly affects DM% but there have been several] studies differing in their results. According to Jenkins and Nelson (1992), numerous published reports indicate a reduction in DM%, others show no effects of N and some recorde instances where final DM% increases significantly as N rate increases. The DM% is normally estimated by the specific gravity (SG), despite some known limitations. The influence of mineral and organic N fertilising on dry matter content of the cv Desirée, the most important variety in Portugal, was studied during three years (1995-1997). For the last two years (1996-1997), specific gravity was also determined. The relationship between the specific gravity and the city matter content of tubers was established and analysed.
|
| Tipo: |
Article
|
| Idioma: |
Inglês
|
| Identificador: |
Rodrigues, Manuel; Martins, Fernando: Coutinho, João (1998) - Influence of mineral and organic nitrogen on tuber dry matter and specific gravity of potatoes. In Proceedings of 5th ESA - Congress. vol. I. Nitra
http://hdl.handle.net/10198/3272
|
| Editor: |
European Society for Agronomy
|
| Direitos: |
open access
|
|
