Joyce Graziella Oliveira
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Joyce Graziella Oliveira has a total of 14 co-authors. Here are the top co-authors by number of shared publications:
Augusto Gameiro
Universidade de São Paulo (USP)
1 shared publicationAugusto Hauber Gameiro
Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Universidade de São Paulo (USP), Pirassununga, Brazil
1 shared publicationFlavia Simili
Instituto de Zootecnia/APTA/SSA
1 shared publicationFlávia Fernanda Simili
Instituto de Zootecnia/APTA/SAA, Ribeirão Preto, Brazil
1 shared publicationGabriela Geraldi Mendonça
Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Universidade de São Paulo (USP), Pirassununga, Brazil
1 shared publicationGabriela Mendonça
Universidade de São Paulo (USP)
1 shared publication
Latest Publications
- Open Access
- 14 July 2022
- Published by Springer Nature in Scientific Reports
- Vol. 12 (1) , 1-10
Nitrogen balance and efficiency as indicators for monitoring the proper use of fertilizers in agricultural and livestock systems
The rational use of nutrients is a key factor for the sustainability of agricultural systems. This study aimed to analyze the nitrogen balance and use efficiency, and the valorization of organic residues within integrated systems, in comparison to conventional agricultural and livestock systems. The experiment was assembled in a randomized blocks design with three replicates. Six production systems were compared, grain maize production (CROP) and pasture for beef cattle production (LS), and four ICLS (Integrated Crop-Livestock System) for grain maize and pastures for beef cattle, in 2 years. In order to estimate the nutrients balance, inputs, and outputs at farm levels were considered, and with the results obtained for nutrient balance, the use efficiency was calculated. The CROP presented higher nutrient use efficiency (1.43 kg/ha−1), but at the same time, it resulted in negative contributions for the nutrient balance (−97 kg/ha−1) because of lower amounts of nitrogen in the organic residues (188 kg/ha−1) and lower valuation. The LS and ICLS provided a higher amount of nitrogen (983 kg/ha−1; mean ± 921 kg/ha−1) and valuation of organic residues. The presence of components such as pastures and the animal contribute to a positive production system, while reducing the needs for chemical fertilizers.
- 14 July 2022
- Published by Springer Nature in Scientific Reports
- Vol. 12 (1) , 1-10
Open AccessNitrogen balance and efficiency as indicators for monitoring the proper use of fertilizers in agricultural and livestock systems
The rational use of nutrients is a key factor for the sustainability of agricultural systems. This study aimed to analyze the nitrogen balance and use efficiency, and the valorization of organic residues within integrated systems, in comparison to conventional agricultural and livestock systems. The experiment was assembled in a randomized blocks design with three replicates. Six production systems were compared, grain maize production (CROP) and pasture for beef cattle production (LS), and four ICLS (Integrated Crop-Livestock System) for grain maize and pastures for beef cattle, in 2 years. In order to estimate the nutrients balance, inputs, and outputs at farm levels were considered, and with the results obtained for nutrient balance, the use efficiency was calculated. The CROP presented higher nutrient use efficiency (1.43 kg/ha−1), but at the same time, it resulted in negative contributions for the nutrient balance (−97 kg/ha−1) because of lower amounts of nitrogen in the organic residues (188 kg/ha−1) and lower valuation. The LS and ICLS provided a higher amount of nitrogen (983 kg/ha−1; mean ± 921 kg/ha−1) and valuation of organic residues. The presence of components such as pastures and the animal contribute to a positive production system, while reducing the needs for chemical fertilizers.
- Open Access
- 17 March 2022
- Published by Springer Nature in Research Square
Rational Use of Nitrogen and Valuation of Organic Residues in Integrated Systems, in Comparison To Conventional Agricultural and Livestock Systems
The rational use of nutrients is a key factor for the sustainability of agricultural systems. This study aimed to analyze the nitrogen balance and use efficiency, and the valorization of organic residues in integrated systems, in comparison to conventional agricultural and livestock systems. The experiment was assembled in a randomized blocks design with three replicates. Six production systems were compared, grain maize production (CROP) and pasture for beef cattle production (LS), and four ICLS (Integrated Crop-Livestock System) for grain maize production and pastures for beef cattle. In order to estimate the nutrient balance, all inputs and outputs at farm levels were considered, and in view of the results obtained for nutrient balance, the nutrient use efficiency was calculated. The CROP system presented higher nutrient use efficiency, but at the same time, it resulted in negative contributions for the nutrient balance lower amounts of nitrogen in the organic residues and lower valuation. The LS and ICLS provided a higher amount the N and valuation of organic residues. The presence of components such as pastures and the animal contribute in a positive production system, while reducing the needs for chemical fertilizers.
- 17 March 2022
- Published by Springer Nature in Research Square
Open AccessRational Use of Nitrogen and Valuation of Organic Residues in Integrated Systems, in Comparison To Conventional Agricultural and Livestock Systems
The rational use of nutrients is a key factor for the sustainability of agricultural systems. This study aimed to analyze the nitrogen balance and use efficiency, and the valorization of organic residues in integrated systems, in comparison to conventional agricultural and livestock systems. The experiment was assembled in a randomized blocks design with three replicates. Six production systems were compared, grain maize production (CROP) and pasture for beef cattle production (LS), and four ICLS (Integrated Crop-Livestock System) for grain maize production and pastures for beef cattle. In order to estimate the nutrient balance, all inputs and outputs at farm levels were considered, and in view of the results obtained for nutrient balance, the nutrient use efficiency was calculated. The CROP system presented higher nutrient use efficiency, but at the same time, it resulted in negative contributions for the nutrient balance lower amounts of nitrogen in the organic residues and lower valuation. The LS and ICLS provided a higher amount the N and valuation of organic residues. The presence of components such as pastures and the animal contribute in a positive production system, while reducing the needs for chemical fertilizers.