@Article{PachecoOGTMLPC:2021:NuBaUs,
               author = "Pacheco, Felipe Siqueira and Ometto, Jean Pierre Henry Balbaud and 
                         Gomes, Luciene and T{\^o}sto, Karina Lima and Miranda, Marcela 
                         Aparecida Campos Neves and Loverde Oliveira, S. and Pessi, D. D. 
                         and Cox, C.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {University of Leeds} 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de Rondon{\'o}polis} and {Universidade 
                         Federal de Mato Grosso do Sul (UFSM)} and {United Nations 
                         Environment Programme (UNEP)}",
                title = "Nutrient Balance and Use Efficiency in Agricultural Lands in the 
                         Vermelho River Watershed, Upper Pantanal, Brazil",
              journal = "Journal of Geophysical Research: Biogeosciences",
                 year = "2021",
               volume = "126",
               number = "3",
                pages = "e2020JG005673",
                month = "Mar.",
             abstract = "Agricultural systems play a key role in achieving many of the 
                         Sustainable Development Goals, established by the United Nations, 
                         given the current challenge of producing enough food to feed a 
                         global population that is expected to reach 10 billion people by 
                         2050. More efficient and sustainable use of nutrients in 
                         agriculture is an important step to increasing production while 
                         minimizing threats to natural ecosystems and resource depletion. 
                         In this study, we developed a system nutrient balance for nitrogen 
                         (N) and phosphorus (P) to evaluate nutrient use practices in 
                         cropping and grazing systems in the Vermelho River watershed 
                         (VRW), Upper Pantanal, Brazil, and investigated options to improve 
                         N and P use efficiency (NUE and PUE). Our results show P balance 
                         in cropping systems are positive while those in grazing systems 
                         tend to be negative. The positive values in cropping systems are 
                         due to both high P inputs from mineral fertilizers and high soil 
                         P-sorbing capacities. The negative values in grazing systems are a 
                         result of the removal of animal products without replacing the 
                         nutrients. Most of the N inputs in the crops grown in this region 
                         come from biological nitrogen fixation. The NUE in cropping 
                         systems is about 0.95, which is higher than the upper critical 
                         value of the desirable range (0.60.9). Given the high NUE value 
                         and the risk of soil mining, improving cropping systems NUE by 
                         adjusting the inputs to replenish N outputs and avoid soil erosion 
                         in the VRW are of considerable interest.",
                  doi = "10.1029/2020JG005673",
                  url = "http://dx.doi.org/10.1029/2020JG005673",
                 issn = "2169-8961",
             language = "en",
           targetfile = "pacheco_nutrient.pdf",
        urlaccessdate = "21 maio 2024"
}