Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system?
Nutrient cycling represents an important nutrient source in the Integrated Crop-Livestock Systems (ICLS). In general, only the crop phase of the ICLS is fertilized, however little is known about this residual effect of nitrogen fertilization from summer crop to succeeding winter pasture. This resea...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2020-12-01
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| Series: | Bioscience Journal |
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| Online Access: | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/53545 |
| _version_ | 1818442641041260544 |
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| author | Angela Bernardon André Brugnara Soares Denise Adelaide Gomes Elejalde Tangriani Simioni Assmann Angélica Caroline Zatta Lucas Candiotto |
| author_facet | Angela Bernardon André Brugnara Soares Denise Adelaide Gomes Elejalde Tangriani Simioni Assmann Angélica Caroline Zatta Lucas Candiotto |
| author_sort | Angela Bernardon |
| collection | DOAJ |
| description |
Nutrient cycling represents an important nutrient source in the Integrated Crop-Livestock Systems (ICLS). In general, only the crop phase of the ICLS is fertilized, however little is known about this residual effect of nitrogen fertilization from summer crop to succeeding winter pasture. This research aimed to evaluate the forage growth dynamic and botanical composition of a mixed pasture of black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam.) affected by two canopy height managements (high and low) and nitrogen fertilization applied to either the summer crop (corn) or winter pasture phase of an ICLS. The experiment was established in 2012 in southern Brazil. Black oat and ryegrass were growing during winter season and corn (Zea mays L.) during summer season, being this paper related to the 2014 pasture period. Treatments were composed by two canopy heights (25 and 10 cm) and two N-Fertilization Times (N-Pasture or N-Corn) of 200 kg of N ha-1. Canopy height was regulated by beef steers grazing through continuous stocking with a variable stocking rate. Forage mass was lower in the 10 cm canopy height on average, however this forage mass was composed by greater proportion of ryegrass leaves and lower proportion of dead material in relation to the treatment with 25 cm canopy height. The N-fertilization applied directly on pasture phase (N-Pasture) increased forage mass, tiller population density, participation of ryegrass and ryegrass leaf proportion in the forage mass. Furthermore, when pasture was fertilized with N, the forage accumulation rate increased about 69%, highlighting that the corn N-fertilization did not present significant effect on forage productivity. The residual effect of corn N-fertilization was not enough to maintain high forage accumulation. Thus, the pasture N-fertilization is fundamental to keep high-productive crop-livestock system.
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| format | Article |
| id | doaj.art-91e5b17861834ad9bf0975e5a79642cf |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-14T18:47:22Z |
| publishDate | 2020-12-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-91e5b17861834ad9bf0975e5a79642cf2022-12-21T22:51:21ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632020-12-0136Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system?Angela Bernardon0André Brugnara Soares1Denise Adelaide Gomes Elejalde2Tangriani Simioni Assmann3Angélica Caroline Zatta4Lucas Candiotto5Universidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do Paraná Nutrient cycling represents an important nutrient source in the Integrated Crop-Livestock Systems (ICLS). In general, only the crop phase of the ICLS is fertilized, however little is known about this residual effect of nitrogen fertilization from summer crop to succeeding winter pasture. This research aimed to evaluate the forage growth dynamic and botanical composition of a mixed pasture of black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam.) affected by two canopy height managements (high and low) and nitrogen fertilization applied to either the summer crop (corn) or winter pasture phase of an ICLS. The experiment was established in 2012 in southern Brazil. Black oat and ryegrass were growing during winter season and corn (Zea mays L.) during summer season, being this paper related to the 2014 pasture period. Treatments were composed by two canopy heights (25 and 10 cm) and two N-Fertilization Times (N-Pasture or N-Corn) of 200 kg of N ha-1. Canopy height was regulated by beef steers grazing through continuous stocking with a variable stocking rate. Forage mass was lower in the 10 cm canopy height on average, however this forage mass was composed by greater proportion of ryegrass leaves and lower proportion of dead material in relation to the treatment with 25 cm canopy height. The N-fertilization applied directly on pasture phase (N-Pasture) increased forage mass, tiller population density, participation of ryegrass and ryegrass leaf proportion in the forage mass. Furthermore, when pasture was fertilized with N, the forage accumulation rate increased about 69%, highlighting that the corn N-fertilization did not present significant effect on forage productivity. The residual effect of corn N-fertilization was not enough to maintain high forage accumulation. Thus, the pasture N-fertilization is fundamental to keep high-productive crop-livestock system. https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/53545Avena strigosa SchrebBotanical compositionContinuous stockingLolium multiflorum LamNutrient cycling |
| spellingShingle | Angela Bernardon André Brugnara Soares Denise Adelaide Gomes Elejalde Tangriani Simioni Assmann Angélica Caroline Zatta Lucas Candiotto Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? Bioscience Journal Avena strigosa Schreb Botanical composition Continuous stocking Lolium multiflorum Lam Nutrient cycling |
| title | Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? |
| title_full | Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? |
| title_fullStr | Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? |
| title_full_unstemmed | Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? |
| title_short | Does the residual effect of n-fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop-livestock system? |
| title_sort | does the residual effect of n fertilization applied on corn phase maintain forage production of the following pasture phase in an integrated crop livestock system |
| topic | Avena strigosa Schreb Botanical composition Continuous stocking Lolium multiflorum Lam Nutrient cycling |
| url | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/53545 |
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