|
|
| Larsen, T.; Magid, J.; Krogh, P.H.; Gorissen, A.. |
| Experimental data is still lacking for determining the significance of plant uptake of dissolved organic nitrogen (DON) in agricultural soils amended with organic fertilizers. Pulse-injection studies with dual-labelled amino acids have confirmed that non-mycorrhizal crops possess the capacity to take up DON but failed to quantify the uptake relative to total N uptake. In this study, dual-labelled green manure was added to soils with wheat plants. An advantage of using dual-labelled green manure as opposed to pulse injection of dual-labelled amino acids is that the amino acids in the fertilizer are released gradually, thus more naturally, and are therefore less susceptible to immediate microbial immobilization. The plants were harvested on days 27, 56, and... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2005 |
URL: http://orgprints.org/5859/1/5859.doc |
| |
