| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000455418 |
| ISSN: | 0103-9016 |
| Autores: | Giacomeli, Robson1 Carlesso, Reimar2 Petry, Mirta Teresinha2 Chechi, Leonardo2 Beutler, Amauri Nelson1 Fulaneti, Fernando Sintra1 Ferrazza, Cassio Miguel2 |
| Instituciones: | 1Universidade Federal do Pampa, Itaqui, Rio Grande do Sul. Brasil 2Universidade Federal de Santa Maria, Departamento de Engenharia Rural, Santa Maria, Rio Grande do Sul. Brasil |
| Año: | 2022 |
| Volumen: | 79 |
| Número: | 6 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Lowlands have been cultivated with irrigated rice (Oryza sativa) in a monoculture cropping system for more than a century in southern Brazil. Shallow topsoil with high bulk density and deficient water infiltration favors the of production paddy rice; however, this condition does not favor species non-tolerant to flooding or oxygen restriction. Thus, soil and irrigation management may be necessary to raise the rice-soybean (Glycine max) rotation systems to sustainable levels. We carried out a two-year field experiment to assess the effects of irrigation treatments and soil management on soil physical properties, soybean growth, and grain yield in lowland systems. The experiment comprised a randomized block design with two factors and three replications. The main factor comprised the following irrigation treatments: sprinkler; surface, and rainfed. Four soil managements composed the second factor: conventional tillage (CT), no-tillage (NT), conventional tillage with raised-seedbed, and no-tillage with raised-seedbed. Soil physical properties, soil penetration resistance, crop parameters, grain yield and water productivity were evaluated. CT increased the soil penetration resistance near the soil surface layer. The highest soil bulk density at the 0.05-0.10 m layer in the CT reduces grain yield in rainfed soybean compared to NT. Supplementary irrigation increased soybean yield of about 36 % in years of uneven rainfall distribution. Sprinkler irrigation resulted in higher irrigated water productivity (90 %) compared to surface irrigation, contributing to a more sustainable increase in grain yield. Crop rotation in a no-tillage cropping scheme could improve the sustainability of diversified agriculture in lowlands |
| Disciplinas: | Agrociencias |
| Palabras clave: | Riego y drenaje, Leguminosas, Suelos, Brasil, Soya, Labranza cero, Glycine max |
| Keyword: | Irrigation and drainage, Legumes, Soils, Soybean, Glycine max, No tillage |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
