Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn
An. acad. bras. ciênc
;
89(3): 1917-1923, July-Sept. 2017. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-886757
ABSTRACT
ABSTRACT Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn + palisadegrass). The results show that for the three intercropping implantation methods the palisadegrass did not compete with corn for N fertilizer.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Suelo
/
Productos Agrícolas
/
Zea mays
/
Fertilizantes
Tipo de estudio:
Ensayo Clínico Controlado
Idioma:
Inglés
Revista:
An. acad. bras. ciênc
Asunto de la revista:
Ciencia
Año:
2017
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Empresa Brasileira de Pesquisa Agropecuária/BR
Similares
MEDLINE
...
LILACS
LIS