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    • A practical guide to estimating the light extinction coefficient with nonlinear models—a case study on maize 

      Lacasa, Josefina; Hefley, Trevor J.; Otegui, María Elena; Ciampitti, Ignacio A. (Springer Nature, 2021-06-12)
      The fraction of intercepted photosynthetically active radiation (fPARi) is typically described with a non-linear function of leaf area index (LAI) and k, the light extinction coefficient. The parameter k is used to make ...

    • A systems-level yield gap assessment of maize-soybean rotation under high- and low-management inputs in the Western US Corn Belt using APSIM 

      Balboa, Guillermo R.; Archontoulis, Sotirios; Salvagiotti, Fernando; Garcia, Fernando O.; Stewart, W.M.; Francisco, Eros Artur Bohac; Vara Prasad, P.V.; Ciampitti, Ignacio A. (Elsevier, 2019-08)
      Quantifying yield gaps (potential minus actual yield) and identifying management practices to close those gaps is critical for sustaining high-yielding production systems. The objectives of this study were to: 1) calibrate ...

    • Attainable yield and soil texture as drivers of maize response to nitrogen : A synthesis analysis for Argentina 

      Correndo, Adrián A.; Gutiérrez Boem, Flavio Hernán; García, Fernando O.; Alvarez, Carolina; Alvarez, Cristian; Angeli, Ariel; Barbieri, Pablo; Barraco, Miriam Raquel; Berardo, Angel; Boxler, Miguel; Calviño, Pablo; Capurro, Julia Ester; Carta, Hector Guillermo; Caviglia, Octavio; Ciampitti, Ignacio A.; Díaz-Zorita, Martín; Díaz-Valdez, Santiago; Echeverría, Hernan E.; Esposito, Gabriel; Ferrari, Manuel Carlos; Ferraris, Gustavo Nestor; Gambaudo, Sebastian; Gudelj, Vicente Jorge; Ioele, Juan Pablo; Melchiori, Ricardo Jose; Molino, Josefina; Orcellet, Juan Manuel; Pagani, Agustín; Pautasso, Juan Manuel; Reussi Calvo, Nahuel Ignacio; Redel, Matías; Rillo, Sergio Nestor; Rimski-Korsakov, Helena; Sainz Rozas, Hernan Rene; Saks, Matías; Telleria, María Guadalupe; Ventimiglia, Luis Alberto; Zorzín, Jose L.; Zubillaga, Ma. Mercedes; Salvagiotti, Fernando (Elsevier, 2021-09)
      The most widely used approach for prescribing fertilizer nitrogen (N) recommendations in maize (Zea Mays L.) in Argentina is based on the relationship between grain yield and the available N (kg N ha−1), calculated as the ...

    • Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis 

      Lacasa, Josefina; Ciampitti, Ignacio A.; Amas, Juan Ignacio; Curín, Facundo; Luque, Sergio F.; Otegui, María Elena (Oxford University Press, 2022-03)
      The light attenuation process within a plant canopy defines energy capture and vertical distribution of light and nitrogen (N). The vertical light distribution can be quantitatively described with the extinction coefficient ...

    • Contribution of tillers to maize yield stability at low plant density 

      Massigoge, Ignacio; Ross, Fernando; Fernandez, Javier A.; Echarte, Laura; Ciampitti, Ignacio A.; Cerrudo, Aníbal Alejandro (Wiley, 2022-08)
      One of the main challenges of using low plant densities in restrictive and variable environments is to maximize the use of resources in better-than-expected years. The adoption of prolific genotypes has addressed part of ...

    • Cover crop species can increase or decrease the fertilizer-nitrogen requirement in maize 

      Carciochi, Walter Daniel; Massigoge, Ignacio; Lapaz Olveira, A.; Reussi Calvo, Nahuel Ignacio; Cafaro La Menza, Francisco; Sainz Rozas, Hernan Rene; Barbieri, Pablo; Di Napoli, M.; Gonzalez Montaner, J.; Ciampitti, Ignacio A. (American Society of Agronomy; Estados Unidos, 2021-07-03)
      Cover crop species and termination date could affect fertilizer-N management and N diagnostic methods traditionally used in bare fallow-maize (Zea mays L.) systems. Our objectives were to (a) assess the impact of cover ...

    • Estimating nitrogen, phosphorus, potassium, and sulfur uptake and requirement in soybean 

      Salvagiotti, Fernando; Magnano, Luciana; Ortez, Osler; Enrico, Juan Martin; Barraco, Miriam Raquel; Barbagelata, Pedro Anibal; Condori, Alicia Adelina; Di Mauro, Guido; Manlla, Amalia Graciela; Rotundo, Jose Luis; García, Fernando O.; Ferrari, Manuel Carlos; Gudelj, Vicente Jorge; Ciampitti, Ignacio A. (Elsevier, 2021-07)
      Estimation of crop nutrient demand, seed nutrient removal, and nutrient use efficiency (yield to nutrient uptake ratio) are crucial for pursuing both balanced nutrition and more sustainable farming systems. However, the ...

    • Exploring nitrogen limitation for historical and modern soybean genotypes 

      Ortez, O.A.; Salvagiotti, Fernando; Enrico, Juan Martin; Prasad, P.V.V.; Armstrong, P.; Ciampitti, Ignacio A. (American Society of Agronomy, 2018-10)
      The United States (USA) and Argentina (ARG) account for over 50% of the global soybean [Glycine max (L.) Merr.] production. Soybean N demand is partially met (50–60%) by the biological nitrogen fixation (BNF) process; ...

    • Intensive Soybean Management : an Integrated Systems Approach 

      Balboa, Guillermo R.; Stewart, Mike; Salvagiotti, Fernando; García, Fernando O.; Francisco, Eros Artur Bohac; Ciampitti, Ignacio A. (2017)
      Ecological intensification impacted soybean yield, biomass and N uptake. Narrow row spacing, high seeding rate, other best production practices, and balanced nutrition increased partitioning effi ciency for biomass, measured ...

    • Maize genetic progress in the central Pampas of Argentina: effects of contrasting sowing dates 

      Amas, Juan Ignacio; Fernandez, Javier A.; Curin, Facundo; Cirilo, Alfredo Gabriel; Ciampitti, Ignacio A.; Otegui, María Elena (Elsevier, 2022-05)
      Delayed sowing date of maize (Zea mays L.) has become a broadly adopted practice in the Pampas region of Argentina, because late-sown crops frequently experience a more favorable water balance around flowering and a reduction ...

    • Mid-Season High-Resolution Satellite Imagery for Forecasting Site-Specific Corn Yield 

      Peralta, Nahuel Raúl; Assefa, Yared; Du, Juan; Barden, Charles J.; Ciampitti, Ignacio A. (MDPI, 2016-10)
      A timely and accurate crop yield forecast is crucial to make better decisions on crop management, marketing, and storage by assessing ahead and implementing based on expected crop performance. The objective of this study ...

    • New insights into soybean biological nitrogen fixation 

      Ciampitti, Ignacio A.; Salvagiotti, Fernando (American Society of Agronomy, 2018-08)
      Soybean biological N2 fixation (BNF) relationships with fertilizer N and yield response have been comprehensively reviewed in the scientific literature. However, the study of the N-gap between N uptake and N supplied by ...

    • Nitrogen and sulfur interaction on nutrient use efficiencies and diagnostic tools in maize 

      Carciochi, Walter Daniel; Salvagiotti, Fernando; Pagani, Agustin; Reussi Calvo, Nahuel Ignacio; Eyherabide, Mercedes; Sainz Rozas, Hernan Rene; Ciampitti, Ignacio A. (Elsevier, 2020-05)
      Nitrogen (N) and sulfur (S) critical dilution curves and the N:S stoichiometry are useful tools for evaluating nutrient status in maize (Zea mays L.). Nutrient supply for both N and S impact plant nutrient uptake, consequently ...

    • Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis 

      Tamagno, S.; Balboa, Guillermo R.; Assefa, Yared; Kovács, P.; Casteel, S.N.; Salvagiotti, Fernando; García, Fernando O.; Stewart, W.M.; Ciampitti, Ignacio A. (2017-01)
      On-farm attainable soybean yields are primarily limited by nutrient and water supply. High-yielding soybeans is related to high nutrient uptake. A proposed theoretical framework underpinning yield formation includes plant ...

    • Predicting soil test phosphorus decrease in non-P-fertilized conditions 

      Appelhans, Stefania Carolina; Carciochi, Walter Daniel; Correndo, Adrián A.; Gutierrez Boem, Flavio Hernán; Salvagiotti, Fernando; García, Fernando O.; Melchiori, Ricardo Jose; Barbagelata, Pedro Anibal; Ventimiglia, Luis Alberto; Ferraris, Gustavo Nestor; Vivas, Hugo Silverio; Caviglia, Octavio; Ciampitti, Ignacio A. (Wiley, 2020-02)
      Monitoring the availability of phosphorus (P) in soil under continuous cropping facilitates finding deficiency in crops and contributes to improving crop growth and nutrient management models. Soil P availability for crops ...

    • Soja de alto rendimiento: ganancia genética y limitación por nitrógeno 

      Ortez, O.A.; Salvagiotti, Fernando; Enrico, Juan Martin; Ciampitti, Ignacio A. (IPNI, 2017-12)
      La mejora genética del rendimiento de soja desde la década de 1980 hasta la del 2010 representó 30% promediando en sitios ubicados en los Estados Unidos y Argentina. Para todas las pocas de liberación, la fertilización ...

    • Soybean nitrogen sources and demand during the seed-filling period 

      Ortez, O.A.; Tamagno, S.; Salvagiotti, Fernando; Prasad, P.V.V.; Ciampitti, Ignacio A. (American Society of Agronomy, 2019-05)
      Soybean [Glycine max (L.) Merr.] seed N demand not met by biological N fixation is fulfilled by N remobilization from vegetative plant organs and N uptake from soil sources during the seed-filling period (SFP), herein ...

    • Sulfur fertilization technology in the Argentine Pampas region : a review 

      Torres Duggan, Martín; Melgar, Ricardo Jose; Rodríguez, Monica Beatriz; Lavado, Raul Silvio; Ciampitti, Ignacio A. (Facultad de Agronomía, Universidad de Buenos Aires, 2012-05)
      Sulfur (S) deficiencies in grain crops have become increasingly frequent worldwide, including the Argentine Pampas region, located in South America. The objective of this work is to review recent research literature regarding ...

    • The allometric relationships between biomass and nitrogen of vegetative organs affect crop N status in maize at silking stage 

      Maltese, Nicolás; Maddonni, Gustavo Angel; Melchiori, Ricardo Jose; Ciampitti, Ignacio A.; Caviglia, Octavio (Elsevier, 2023-04)
      In maize (Zea mays, L.) changes in the partitioning of biomass (W) and nitrogen (N) between organs linked to photosynthetically active tissues, such as leaves (with high N concentration, %N) and organs related to supporting ...