Long-term impact of gypsum and nitrogen levels on soil chemical properties and maize forage and grain yield under no-tillage in a subtropical region

Umburanas, Renan Caldas; Souza, Michel Pereira de; Koszalka, Victória; Eurich, Keity; Lopes, Édina Cristiane Pereira; Camilo, Edson Lucas; Ávila, Fabrício William; Müller, Marcelo Marques Lopes

doi:10.1007/s42106-022-00227-y

Int. J. Plant Prod.

2022

DOI: 10.1007/s42106-022-00227-y

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Long-term impact of gypsum and nitrogen levels on soil chemical properties and maize forage and grain yield under no-tillage in a subtropical region

Renan Caldas Umburanas

Michel Pereira de Souza

Victória Koszalka

et al.

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Sustainability Analysis of Nitrogen Use Efficiency in Soybean-Corn Succession Crops of Midwest Brazil

Risi,

Hüther,

Righi

et al. 2024

Nitrogen

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Nitrogen (N) is abundant in the atmosphere as N2, which is converted into reactive forms (Nr) for plant assimilation. In pre-industrial times, atmospheric N2 conversion to Nr balanced Nr reconversion to N2, but 20th-century human activity intensified this conversion via synthetic fertilizers, biological N2 fixation, and fossil fuel burning. The surplus of Nr detrimentally impacts ecosystems and human well-being. This study aimed to assess the N use efficiency in the soil–plant system of the soybean-corn succession (SPSS,C) in Mato Grosso and Mato Grosso do Sul, Brazil’s midwest. We estimated N macrofluxes in SPSS,C and identified key agro-environmental indicators. Between 2008 and 2020, the yearly sowed area for the SPSS,C increased by 3.3-fold (currently 7.3 million ha). The average annual input of net anthropogenic Nr, average annual N balance, and N loss in SPSS,C was estimated to be ~204 kg [N] ha−1, 57 kg [N] ha−1, and 30 kg [N] ha−1, respectively, indicating persistent N accumulation and loss. The average results of the agronomic efficiency and N retention indicator in the SPSS,C was 0.71 and 0.90, respectively. Modest N use efficiency results reflect N loss effects. Despite these limitations, there are opportunities in SPSS,C for management strategies to reduce N loss and enhance efficiency.

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Sustainability Analysis of Nitrogen Use Efficiency in Soybean-Corn Succession Crops of Midwest Brazil

Risi,

Hüther,

Righi

et al. 2024

Nitrogen

View full text Add to dashboard Cite

show abstract

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Long-term impact of gypsum and nitrogen levels on soil chemical properties and maize forage and grain yield under no-tillage in a subtropical region

Cited by 1 publication

References 50 publications

Sustainability Analysis of Nitrogen Use Efficiency in Soybean-Corn Succession Crops of Midwest Brazil

Sustainability Analysis of Nitrogen Use Efficiency in Soybean-Corn Succession Crops of Midwest Brazil

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