| Revista: | Acta scientiarum. Agronomy |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459809 |
| ISSN: | 1679-9275 |
| Autores: | Yokoyama, Anderson Hideo1 Zucareli, Claudemir1 Coelho, Antonio Eduardo2 Nogueira, Marco Antonio3 Franchini, Julio Cezar3 Debiasi, Henrique3 Balbinot-Junior, Alvadi Antonio3 |
| Instituciones: | 1Universidade Estadual de Londrina, Londrina, Parana. Brasil 2Universidade do Estado de Santa Catarina, Lages, Santa Catarina. Brasil 3Empresa Brasileira de Pesquisa Agropecuaria, Soja, Londrina, Parana. Brasil |
| Año: | 2022 |
| Volumen: | 44 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Precrops have different growth patterns, nitrogen (N) requirements, and production of residues varying in amounts and quality that may affect the N-clycling and the soybean (Glycine max L. Merrill) cropped in succession. This study aimed to evaluate the effect of precrops and N fertilization on soybean performance. An experiment was conducted in Londrina, Paraná State, Brazil, with six precrops treatments: fallow, ruzigrass (Urochloa ruziziensis), showy rattlebox (Crotalaria spectabilis), corn (Zea mays) without or with 80 kg ha−1 of N at topdressing as urea, and wheat (Triticum aestivum). Subplots consisted of two levels of N fertilization at soybean sowing: 0 and 30 kg ha−1 of N as ammonium nitrate at sowing. Urochloa ruziziensis as precrops increased the soybean yield (5,171 kg ha-1) when compared with corn (4,346 kg ha-1) and fallow (4,467 kg ha-1). In 2016/17, N fertilization of soybean with 30 kg ha−1 of N at sowing, although increasing the initial plant growth (745 kg ha-1 with vs. 662 kg ha-1 without), impairs nodulation (100 mg pl-1 with vs. 130 g pl-1 without) and does not increase grain yield. Oil and protein concentrations in soybean grains are not influenced by precrops and N fertilization at sowing. We found that the use Urochloa ruziziensis as cover crop in soybean precrops is a good recommendation option in tropical regions of Brazil, because increasing the yield of soybean grown in succession. N fertilization at in soybean sowing it should not be recommended even in the presence of a large amount of straw |
| Disciplinas: | Agrociencias, Química |
| Palabras clave: | Leguminosas, Fertilización, Fitoquímica, Soya, Glycine max, Fertilización nitrogenada, Cobertura vegetal, Semillas, Proteínas, Aceites esenciales, Brasil |
| Keyword: | Legumes, Fertilization, Phytochemistry, Soybean, Glycine max, Nitrogen fertilization, Cover crops, Seeds, Proteins, Essential oils, Brazil |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
