Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas
The study proposed to measure the primary productivity or rate of dry-matter production of maize and beans, grown under tropical conditions, in pure stands and as mixed crops at different planting densities (6.25, 12.5, 25, 50 and 100 plants/m2). Primary productivity increased in proportion to the p...
| Autores principales: | , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Portugués |
| Publicado: |
Instituto Interamericano de Cooperación para la Agricultura (IICA)
2025
|
| Materias: | |
| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/13378 |
| _version_ | 1855489405231300608 |
|---|---|
| author | ALVIM, R. Alvim, P. de T. |
| author_browse | ALVIM, R. Alvim, P. de T. |
| author_facet | ALVIM, R. Alvim, P. de T. |
| author_sort | ALVIM, R. |
| collection | Repositorio CATIE |
| description | The study proposed to measure the primary productivity or rate of dry-matter production of maize and beans, grown under tropical conditions, in pure stands and as mixed crops at different planting densities (6.25, 12.5, 25, 50 and 100 plants/m2). Primary productivity increased in proportion to the planting densities, reaching a maximun value of 57.7 g/m2/day in the case of maize planted at 10 to 10 cm (100 plants/m2). This figure corresponded to a photosynthetic efficiency or conversion of visible solar energy of 10.5 per cent of the first month of growth, this being one of the highest figures recorded in the literature on the matter. In all densities, beans showed only about one third of the productivity and photosynthetic efficiency of maize. When grown as mixed crops, the rates of productivity of the stands were usually higher than the means for the two crops grown as single, this indicating that the decrease in assimilation rate of beans due to shading by maize was outweighted by the increase in assimilation rate of the latter as a result of reduced selfshading in the mixed stands |
| format | Artículo |
| id | RepoCATIE13378 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Portugués |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| publisherStr | Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| record_format | dspace |
| spelling | RepoCATIE133782025-07-25T23:56:34Z Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas ALVIM, R. Alvim, P. de T. Efecto||effects||efeitos||effet Densidad||density||densidade||densité Modo de aprovechamiento||land tenure systems||sistemas de posse da terra||systèmes de tenure Energía||energy||energia||énergie Maíz||maize||milho||maïs Zea mays||Zea mays||Zea mays||Zea mays Fríjol (Phaseolus)||common beans||feijão (Phaseolus)||haricot commun Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris Sede Central The study proposed to measure the primary productivity or rate of dry-matter production of maize and beans, grown under tropical conditions, in pure stands and as mixed crops at different planting densities (6.25, 12.5, 25, 50 and 100 plants/m2). Primary productivity increased in proportion to the planting densities, reaching a maximun value of 57.7 g/m2/day in the case of maize planted at 10 to 10 cm (100 plants/m2). This figure corresponded to a photosynthetic efficiency or conversion of visible solar energy of 10.5 per cent of the first month of growth, this being one of the highest figures recorded in the literature on the matter. In all densities, beans showed only about one third of the productivity and photosynthetic efficiency of maize. When grown as mixed crops, the rates of productivity of the stands were usually higher than the means for the two crops grown as single, this indicating that the decrease in assimilation rate of beans due to shading by maize was outweighted by the increase in assimilation rate of the latter as a result of reduced selfshading in the mixed stands 2025-07-24T14:23:23Z 2025-07-24T14:23:23Z 1969-07 Artículo https://repositorio.catie.ac.cr/handle/11554/13378 openAccess pt Turrialba; Vol.19, no. 3 5 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| spellingShingle | Efecto||effects||efeitos||effet Densidad||density||densidade||densité Modo de aprovechamiento||land tenure systems||sistemas de posse da terra||systèmes de tenure Energía||energy||energia||énergie Maíz||maize||milho||maïs Zea mays||Zea mays||Zea mays||Zea mays Fríjol (Phaseolus)||common beans||feijão (Phaseolus)||haricot commun Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris Sede Central ALVIM, R. Alvim, P. de T. Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title | Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title_full | Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title_fullStr | Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title_full_unstemmed | Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title_short | Efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho (Zea mays) e pelo feijão (Phaseolus vulgaris), en culturas exclusivas e consorciadas |
| title_sort | efeito da densidade de plantio no aproveitamento da energia luminosa pelo milho zea mays e pelo feijao phaseolus vulgaris en culturas exclusivas e consorciadas |
| topic | Efecto||effects||efeitos||effet Densidad||density||densidade||densité Modo de aprovechamiento||land tenure systems||sistemas de posse da terra||systèmes de tenure Energía||energy||energia||énergie Maíz||maize||milho||maïs Zea mays||Zea mays||Zea mays||Zea mays Fríjol (Phaseolus)||common beans||feijão (Phaseolus)||haricot commun Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris||Phaseolus vulgaris Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13378 |
| work_keys_str_mv | AT alvimr efeitodadensidadedeplantionoaproveitamentodaenergialuminosapelomilhozeamaysepelofeijaophaseolusvulgarisenculturasexclusivaseconsorciadas AT alvimpdet efeitodadensidadedeplantionoaproveitamentodaenergialuminosapelomilhozeamaysepelofeijaophaseolusvulgarisenculturasexclusivaseconsorciadas |