Influence of storage on chemical properties of different peats
Nenhuma Miniatura disponível
Data
2009-10-23
Autores
Beckmann-Cavalcante, M. Z. [UNESP]
Lopes-Pivetta, K. F. [UNESP]
Meinken, E.
Roeber, R.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The change of chemical properties during storage of 12 fertilized bagged peats of different origins at high temperature was investigated. The average values for N, soluble salts and EC decreased significantly, whereas the pH as well as P and K contents changed only slightly. Differences in N were observed between the peats. The contents of CAT soluble N in the two dredged frozen black peats did not change during storage. However, a decrease in N was found when water extraction was used. In the case of the 10 white peats the loss of N differed considerably, but it was independent of the method of peat harvest. The N decrease resulted mainly from reduced levels of NO3-N. Substances damaging to plant growth do not seem to have developed during storage as shown by trials on the germination and the growth of Chinese cabbage. There were no significant differences between the peats, whether stored or not.
Descrição
Palavras-chave
Analytical methods, Chemical properties, Growing media, Horticultural substrates, Peat, Storage, Brassica rapa subsp. pekinensis
Como citar
Acta Horticulturae, v. 819, p. 185-188.