Data/hora: 06/06/2024 05:37:58

Provedor de dados: | 63
País: | Brazil
Título: | Nitrogen-15 labeling of Crotalaria juncea green manure
Autores: | Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Rossetto,Raffaella; Muraoka,Takashi; Bendassolli,José Albertino; Ambrosano,Gláucia Maria Bovi; Tamiso,Luciano Grassi; Vieira,Felipe de Campos; Prada Neto,Ithamar.
Data: | 2003-02-01
Ano: | 2003
Palavras-chave: | 15N -fertilizer; Labeled legumes; Green manure.
Resumo: | Most studies dealing with the utilization of 15N labeled plant material do not present details about the labeling technique. This is especially relevant for legume species since biological nitrogen fixation difficults plant enrichment. A technique was developed for labeling leguminous plant tissue with 15N to obtain labeled material for nitrogen dynamics studies. Sun hemp (Crotalaria juncea L.) was grown on a Paleudalf, under field conditions. An amount of 58.32 g of urea with 70.57 ± 0.04 atom % 15N was sprayed three times on plants grown on eight 6-m²-plots. The labelled material presented 2.412 atom % 15N in a total dry matter equivalent to 9 Mg ha-1 This degree of enrichment enables the use of the green manure in pot or field experiments requiring 15N-labeled material.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100027
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162003000100027
Formato: | text/html
Fonte: | Scientia Agricola  v.60 n.1 2003
Fonte: | info:eu-repo/semantics/openAccess