Effects on soybean growth and yield of wheat-soybean intercropping system
It has been demonstrated that soybean (Glycine max) produces lower yields at relay intercropping with wheat (Triticum aestivum) than if it is sown as a sole crop. However, most studies considered wider or irregular soybean row spacing, compromising its capacity to recover after wheat harvest. This w...
| Autores principales: | , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Khalsa Publications, India
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/6939 https://www.rajpub.com/index.php/jaa/article/view/7906 https://doi.org/10.24297/jaa.v9i0.7906 |
| _version_ | 1855035766287106048 |
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| author | Ross, Fernando Abbate, Pablo Eduardo |
| author_browse | Abbate, Pablo Eduardo Ross, Fernando |
| author_facet | Ross, Fernando Abbate, Pablo Eduardo |
| author_sort | Ross, Fernando |
| collection | INTA Digital |
| description | It has been demonstrated that soybean (Glycine max) produces lower yields at relay intercropping with wheat (Triticum aestivum) than if it is sown as a sole crop. However, most studies considered wider or irregular soybean row spacing, compromising its capacity to recover after wheat harvest. This work studied the stress effects in relay soybean intercropping and suggests narrowing row spacing to improve soybean performance. The aims were (i) to compare growth and yield of two planting patterns and (ii) to separate the effect of water stress (WS) from the effects of other stress factors (OSF) induced by wheat on intercropping soybean. WS was evaluated comparing above-ground dry and grain yield of irrigated and non irrigated intercropping soybean, and OSF was evaluated comparing intercropping soybean with another treatment in which wheat straw (aerial biomass) was eliminated at soybean emergence, both irrigated treatments. In wheat, similar yields were obtained in treatments with an intercropping planting pattern with two rows for wheat and one for soybean (2:1) compared to three rows for wheat and one row for soybean (3:1). However, intercropping soybean at narrow row spacing (52 cm; 2:1) improve yielded 23% more than intercropping at 70 cm (3:1). During wheat-soybean coexistence, OSF prevailed on soybean and this effect persisted in later stages. After wheat harvest, OSF reduced the amount of light interception from R1 to R5 and depressed the crop growth rate (CGR) in 34%. However, in this period, WS also affected the radiation use efficiencies (RUE) which explained the greater fraction (66%) of the total stress induced by wheat in soybean CGR. Intercrop soybean yielded 182 g m-2 less compared to the unstressed sole crop control. Considering the wheat effects on soybean growth, 63% (116.5 g m-2) of the total yield lost were due to WS. Therefore, most of the performance of relay intercropping soybean was linked with water disponibility since early stages. However, at optimum water condition wheat competition by light and resources also affected soybean yield (OSF: 37%). |
| format | info:ar-repo/semantics/artículo |
| id | INTA6939 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Khalsa Publications, India |
| publisherStr | Khalsa Publications, India |
| record_format | dspace |
| spelling | INTA69392020-03-13T13:01:08Z Effects on soybean growth and yield of wheat-soybean intercropping system Ross, Fernando Abbate, Pablo Eduardo Soja Crecimiento Cultivo Intercalado Trigo Rendimiento Soybeans Growth Intercropping Wheat Yields cientifico It has been demonstrated that soybean (Glycine max) produces lower yields at relay intercropping with wheat (Triticum aestivum) than if it is sown as a sole crop. However, most studies considered wider or irregular soybean row spacing, compromising its capacity to recover after wheat harvest. This work studied the stress effects in relay soybean intercropping and suggests narrowing row spacing to improve soybean performance. The aims were (i) to compare growth and yield of two planting patterns and (ii) to separate the effect of water stress (WS) from the effects of other stress factors (OSF) induced by wheat on intercropping soybean. WS was evaluated comparing above-ground dry and grain yield of irrigated and non irrigated intercropping soybean, and OSF was evaluated comparing intercropping soybean with another treatment in which wheat straw (aerial biomass) was eliminated at soybean emergence, both irrigated treatments. In wheat, similar yields were obtained in treatments with an intercropping planting pattern with two rows for wheat and one for soybean (2:1) compared to three rows for wheat and one row for soybean (3:1). However, intercropping soybean at narrow row spacing (52 cm; 2:1) improve yielded 23% more than intercropping at 70 cm (3:1). During wheat-soybean coexistence, OSF prevailed on soybean and this effect persisted in later stages. After wheat harvest, OSF reduced the amount of light interception from R1 to R5 and depressed the crop growth rate (CGR) in 34%. However, in this period, WS also affected the radiation use efficiencies (RUE) which explained the greater fraction (66%) of the total stress induced by wheat in soybean CGR. Intercrop soybean yielded 182 g m-2 less compared to the unstressed sole crop control. Considering the wheat effects on soybean growth, 63% (116.5 g m-2) of the total yield lost were due to WS. Therefore, most of the performance of relay intercropping soybean was linked with water disponibility since early stages. However, at optimum water condition wheat competition by light and resources also affected soybean yield (OSF: 37%). EEA Barrow Fil: Ross, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Barrow; Argentina Fil: Abbate, Pablo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina 2020-03-13T12:59:28Z 2020-03-13T12:59:28Z 2018 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/6939 https://www.rajpub.com/index.php/jaa/article/view/7906 2349-0837 https://doi.org/10.24297/jaa.v9i0.7906 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Khalsa Publications, India Journal of Advances In Agriculture 9 : 1498-1510. (2018) |
| spellingShingle | Soja Crecimiento Cultivo Intercalado Trigo Rendimiento Soybeans Growth Intercropping Wheat Yields cientifico Ross, Fernando Abbate, Pablo Eduardo Effects on soybean growth and yield of wheat-soybean intercropping system |
| title | Effects on soybean growth and yield of wheat-soybean intercropping system |
| title_full | Effects on soybean growth and yield of wheat-soybean intercropping system |
| title_fullStr | Effects on soybean growth and yield of wheat-soybean intercropping system |
| title_full_unstemmed | Effects on soybean growth and yield of wheat-soybean intercropping system |
| title_short | Effects on soybean growth and yield of wheat-soybean intercropping system |
| title_sort | effects on soybean growth and yield of wheat soybean intercropping system |
| topic | Soja Crecimiento Cultivo Intercalado Trigo Rendimiento Soybeans Growth Intercropping Wheat Yields cientifico |
| url | http://hdl.handle.net/20.500.12123/6939 https://www.rajpub.com/index.php/jaa/article/view/7906 https://doi.org/10.24297/jaa.v9i0.7906 |
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