| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000412328 |
| ISSN: | 0001-3765 |
| Authors: | Almeida, Rodrigo E.M. de1 Oliveira, Silas M. de2 Lago, Bruno C2 Junior, Clovis P3 Trivelin, Paulo C.O4 Favarin, Jose L2 |
| Institutions: | 1Empresa Brasileira de Pesquisa Agropecuaria, Pesca e Aquicultura, Palmas, Tocantins. Brasil 2Universidade de Sao Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, Sao Paulo. Brasil 3Instituto Federal do Parana, Departamento de Agronomia, Palmas, Parana. Brasil 4Universidade de Sao Paulo, Centro de Energia Nuclear na Agricultura, Piracicaba, Sao Paulo. Brasil |
| Year: | 2017 |
| Season: | Sep |
| Volumen: | 89 |
| Number: | 3 |
| Pages: | 1917-1924 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English 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 |
| Disciplines: | Agrociencias |
| Keyword: | Fertilización, Gramíneas, Asociación de cultivos, Nitrógeno, Asimilación de nutrientes, Labranza cero, Urochloa, Zea mays |
| Keyword: | Agricultural sciences, Fertilization, Gramineae, Intercrops, Nitrogen, Nutrients assimilation, No tillage, Urochloa, Zea mays |
| Full text: | Texto completo (Ver HTML) |
