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Recent News

NEXUS PHASE 3 PROJECT: PROMOTING RENEWABLE ENERGY IN AREQUIPA’S HIGHLAND COMMUNITIES

February 2, 2024

Burning fossil fuels to generate energy is a key contributor to the climate change crisis. Renewable sources of energy offer clean energy production, without emitting greenhouse gases, and there is a continuous growth of in the adoption of clean energy production in emerging economies.

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NEXUS PHASE 3 PROJECT: ENHANCING ALPACA’S SURVIVAL AND FIBER QUALITY IN AREQUIPA’S HIGHLANDS

January 5, 2024

2024 has been designated the International Year of Camelids by the United Nations. Camelids have a significant role in the livelihoods of millions of poor families around the world; moreover, they are an important element in the cultural identity of ancestral indigenous peoples.

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Purdue Article Highlights Continuation of Purdue-UNSA Partnership

August 10, 2023

An article written recently by Maureen Manier, Purdue Agricultural Communications Specialist, emphasized the funding received by the Arequipa Nexus Institute (a partnership between Purdue and UNSA) for a third phase of multidisciplinary research projects). Read more about “Purdue article highlights continuation of Purdue-UNSA partnership”

Purdue Article Highlights Continuation of Purdue-UNSA Partnership

UNSA article highlights continuation of Purdue-UNSA collaborative effort in the Caylloma region of Arequipa, Peru

July 31, 2023

An article published by the University Office of Institutional Imagey, of the Saint Agustin National University (UNSA), made emphasis on the execution of four research projects in the Caylloma region aimed at generating social impact of the population in the area. This third phase of multidisciplinary research projects is a continuation of the partnership between UNSA and Purdue. Read more about “UNSA article highlights continuation of Purdue-UNSA collaborative effort in the Caylloma region of Arequipa, Peru”

UNSA article highlights continuation of Purdue-UNSA collaborative effort in the Caylloma region of Arequipa, Peru

Rainwater collected in the Andes Mountains contains fingerprints of atmospheric processes

October 3, 2022

Water Origin members teamed up to study rains captured during the wet monsoon season and measure the oxygen and hydrogen stable isotopic ratios of the rainwater. This study of isotopic signatures of different rain generating atmospheric patterns was recently published in the American Geophysical Union's (AGU) Geophysical Research Letters (GRL).

Rainwater collected in the Andes Mountains contains fingerprints of atmospheric processes

Researchers Share Lessons Learned From Peru's Water Management Program

February 2, 2022

Learning, as defined by Ababacar Mbengue and Sedou Sané, is the ability to "detect errors and correct them by changing [one's] theory of action. But what happens when that learning does not produce the expected outcome?

Researchers Share Lessons Learned From Peru's Water Management Program

Purdue Article Highlights Purdue-UNSA Partnership

January 27, 2022

An article written recently by John O'Malley, Purdue Communications Specialist, highlighted UNSA's leadership visit last October, in preparation for the third phase of the major multidisciplinary research partnership between Purdue and UNSA through the Arequipa Nexus Institute.

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Using Pacha Kit to Measure Soil Health Indicators: Nexus Featured Research Tool

October 11, 2021

Soil practices can improve agricultural productivity, but a healthy soil cannot be only defined by crop yield. It is necessary to measure integrated chemical, biological, and physical indicators that are sensitive to management and reflect changes in resilience and adaptation. Soil health is then defined as the ability of the soil to sustain the productivity, diversity, and environmental services of terrestrial ecosystems (ITPS, 2020). Moreover, soil management decisions, crop rotation, and application of agrochemicals lead to changes in physical, chemical, and biological soil properties that require constant monitoring and evaluation. In this context, Peruvian smallholder farmers face limited access to basic farming needs like formal soil analysis, and when done, these analyses can be costly, complex, lacking standardization, and can delay farmer decision-making. To foster knowledge exchange and future collaborations with farmers, the Soil Vulnerability, Impairment, and Health Assessment (SHIVA) group of the Arequipa Nexus Institute has adapted a relatively simple soil kit, the PachaKit, to measure soil health indicators such as physical characterization, bulk density, infiltration, electric conductivity, pH, nitrates, texture, aggregate stability, particulate organic matter (POM), permanganate oxidizable carbon (POXC), extractable phosphorus (P) and macrofauna.

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Nexus Purdue-UNSA ‘Plant-microbe interactions’ team publish paper in Applied Soil Ecology Journal

October 4, 2021

Arequipa Nexus Institute ‘Plant-microbe interactions’ team published a paper on soil fungal communities on farms in Arequipa, which face crop diseases caused by soil-borne fungal pathogens, in the Applied Soil Ecology journal. The composition and potential functional roles of soil fungal communities on 12 farms was characterized using SMRT sequencing and compared based on location and farm age to investigate possible drivers of the pathogens’ structure and function.

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Purdue-UNSA ‘Food Safety’ TEAM completes productive stage in research

September 30, 2021

The “Developing good agricultural and manufacturing practices” project recently completed two weeks of productive fieldwork evaluating the microbiological quality of Arequipa’s irrigation water and testing for pesticide residues. Purdue Post-Doctoral Researcher Silvia J R Vargas visited UNSA laboratories to start the project stage related to the determination of pesticide residues in irrigation waters and continue evaluation of their microbiological quality. An irrigation water sampling protocol was established, with training administered to UNSA staff, Mg. Erika Pachari and Mg. Yemina Díaz. 45 samples were obtained from 15 collection points in the Cayma, Tiabaya, and Majes districts of Arequipa.

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Contact

Lori Hoagland

Lori Hoagland
Professor, Purdue University
Horticulture And Landscape Architecture
Nexus Institute Co-Director
E-mail: c4e-nexus@purdue.edu


Walter Daniel Leon-Salas

Walter Daniel Leon-Salas
Associate Professor, Purdue University
Purdue Polytechnic Institute
Nexus Institute Co-Director
E-mail: c4e-nexus@purdue.edu


Dennis Macedo

Dennis Macedo
Associate Professor, UNSA
Agronomy
Nexus Institute Co-Director
E-mail: dmacedov@unsa.edu.pe

Purdue University
UNSA