Fecha/hora: 12/06/2024 10:35:15

Biblioteca(s): 	INIA Treinta y Tres.	
Fecha corriente: 	02/12/2020	
Fecha de la última actualización: 	02/12/2020	
Autoria: 	FARIAS, G.D.; BATISTA DEBEUX JR, J.C.; SAVIAN, J.V.; PACHERO DUARTE, L.; POSSELT MARTINS, A.; TIECHER, T.; AQUINO ALVES, L.; CARVALHO, P.C. DE FACCIO; BREMM, C.	
Afiliación: 	GUSTAVO DUARTE FARIAS, Department of Forage Plants and Agrometeorology, Integrated Crop-Livestock System Research Group (GPSIPA), Federal University of Rio Grande do Sul.; JOSE CARLOS BATISTA DUBEUX JR., University of Florida ? North Florida Research and Education Center, Marianna, FL, USA.; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LÓREN PACHECO DUARTE, Department of Forage Plants and Agrometeorology, Integrated Crop-Livestock System Research Group (GPSIPA), Federal University of Rio Grande do Sul; AMANDA POSSELT MARTINS, Department of Soil Science, Interdisciplinary Research Group on Environmental Biogeochemistry (IRGEB), Federal University of Rio Grande do Sul; TALES TIECHER, Department of Soil Science, Interdisciplinary Research Group on Environmental Biogeochemistry (IRGEB), Federal University of Rio Grande do Sul.; LUCAS AQUINO ALVES, Department of Soil Science, Interdisciplinary Research Group on Environmental Biogeochemistry (IRGEB), Federal University of Rio Grande do Sul; PAULO CÉSAR DE FACCIO CARVALHO; CAROLINA, BREMM, Department of Forage Plants and Agrometeorology, Integrated Crop-Livestock System Research Group (GPSIPA), Federal University of Rio Grande do Sul.	
Título: 	Integrated crop-livestock system with system fertilization approach improves food production and resource-use efficiency in agricultural lands.	
Año de publicación: 	2020	
Fuente/Imprenta: 	Agronomy for Sustainable Development volume, 2020. 40, art. 39. DOI: https://doi.org/10.1007/s13593-020-00643-2	
DOI: 	10.1007/s13593-020-00643-2	
Idioma: 	Inglés	
Notas: 	Article history: Accepted: 4 October 2020. Published: 27 October 2020.	
Contenido: 	Integrated crop-livestock systems (ICLS) can be an alternative to increase the productivity of agroecosystems by enhancing nutrient cycling via grazing animals. Despite the holistic approach that bears the designing of ICLS, fertilization practices are proceeded in a conventional crop basis, disregarding nutrient fluxes at the appropriate spatial and temporal dynamics. We argue that fertilization practices in ICLS must follow the same integrated approach. To test this, we compared a conventional crop fertilization strategy versus a system fertilization approach applied to two production systems being a conventional cropping system and ICLS. The conventional cropping system consisted of a soybean crop succeeded by a non-grazed Italian ryegrass cover crop. The ICLS model consisted of a soybean-Italian ryegrass rotation grazed by sheep. In the conventional crop fertilization strategy phosphorus and potassium were applied at soybean sowing and nitrogen at the Italian ryegrass establishment. The system fertilization consisted of the application of all nutrients during the Italian ryegrass establishment. Accordingly, treatments were fertilization strategies in a factorial framework with production systems randomly distributed in a complete block design with four replicates. Results indicated for the first time greater daily herbage accumulation rate (24%; P < 0.01) and total herbage production (18%; P < 0.05) in the system fertilization compared with conventional crop fertilization. Consequently, system fertilization allowed for greater stocking rates in the pasture phase (17%; P < 0.05). The ICLS presented greater equivalent soybean yield (P < 0.001), energy production (P < 0.01), and system productivity (P < 0.05) compared with the cropping system, regardless of fertilization strategies. Soybean yield was not affected by fertilization strategies or grazing. In conclusion, the adoption of system fertilization strategy and crop-livestock integration enhance the production without jeopardizing soybean grain yields, so that land use is optimized by a greater energy production per unit of nutrient applied.	
Palabras-Clave: 	CROP FERTILIZATION; CROPPING SYSTEMS; GRAZING; MIXED CROP-LIVESTOCK SYSTEMS; NUTRIENT CYCLING; SOYBEAN.	
Categoría del tema: 	F01 Cultivo	
Registro original: 	INIA Treinta y Tres (TT)	
Ejemplares: 	TT - (103153-1) - PXI - AP - DD - PP/ASA/2020 FARIAS -  -  - DIS