Repositorio Institucional INIA (Inst. Nacional de Innovacion Agraria)
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Polinización y polinizadores desde la innovación agraria. LXV Convención Nacional de Entomología.
No full textEl Sistema Nacional de Innovación Agraria (SNIA) de acuerdo al la D.S. 1060 es el conjunto de instituciones, principios, normas, procedimientos, técnicas e instrumentos mediante los cuales el Estado, en asociación con el sector privado y las universidades, promueve la investigación, el desarrollo tecnológico, la innovación y la transferencia tecnológica con la finalidad de impulsar la modernización y la competitividad del sector agrario. Uno de los aspectos considerados como fundamentales en una agricultura sostenible es el servicio ecosistémico de polinización, a cargo de especies manejadas como la abeja común (Apis mellifera) y diversas especies nativas, donde resaltan los insectos como himenópteros, lepidópteros y dípteros, principalmente
Reporte de Investigadores del INIA en RENACYT del 01 al 30 de Abril 2024
No full textEn este reporte de investigadores del INIA en RENACYT se observa que al finalizar el mes de abril se cuenta con un total de 74 investigadores, divididas en 68 afiliados y 06 no afiliados. El objetivo de este reporte es mantener actualizados los datos sobre los investigadores del INIA en el RENACYT
Evaluación de la condición corporal (CC) en caprinos
No full textHoja divulgativa referente a la evaluación de la condición corporal (CC) en caprinos“Mejoramiento de los servicios de investigación y transferencia de tecnologías para el manejo sostenible de la ganadería caprina en bosque seco y costa central en los departamentos de Tumbes, Piura, Lambayeque, Amazonas, La Libertad, Áncash y Lima” (PI Procap) identificado con Código Único de Inversiones N°2506684
Toma de muestras y análisis de suelo agrícola
No full textEl presente documento informa sobre la toma de muestras y análisis de suelo agrícola
An analysis of the rice-cultivation dynamics in the lower Utcubamba river basin using SAR and optical imagery in Google Earth Engine (GEE)
No full textOne of the world’s major agricultural crops is rice (Oryza sativa), a staple food for more than half of the global population. In this research, synthetic aperture radar (SAR) and optical images are used to analyze the monthly dynamics of this crop in the lower Utcubamba river basin, Peru. In addition, this study addresses the need to obtain accurate and timely information on the areas under cultivation in order to calculate their agricultural production. To achieve this, SAR sensor and Sentinel-2 optical remote sensing images were integrated using computer technology, and the monthly dynamics of the rice crops were analyzed through mapping and geometric calculation of the surveyed areas. An algorithm was developed on the Google Earth Engine (GEE) virtual platform for the classification of the Sentinel-1 and Sentinel-2 images and a combination of both, the result of which was improved in ArcGIS Pro software version 3.0.1 using a spatial filter to reduce the “salt and pepper” effect. A total of 168 SAR images and 96 optical images were obtained, corrected, and classified using machine learning algorithms, achieving a monthly average accuracy of 96.4% and 0.951 with respect to the overall accuracy (OA) and Kappa Index (KI), respectively, in the year 2019. For the year 2020, the monthly averages were 94.4% for the OA and 0.922 for the KI. Thus, optical and SAR data offer excellent integration to address the information gaps between them, are of great importance to obtaining more robust products, and can be applied to improving agricultural production planning and management
Using acoustic tomography to model wood deterioration in Cedrelinga cateniformis Ducke in the Peruvian Amazon
No full textForest plantations can be established in order to restore degraded areas. Acoustic tomography, which is of increasing importance in forest management, was used in the present study to obtain information for managing plantations of Cedrelinga cateniformis Ducke in the Peruvian Amazon. The species is valuable in the timber sector of Peru, but the core wood tends to deteriorate and develop cavities. The main objective of the study was to model wood deterioration in Cedrelinga cateniformis Ducke using the data obtained through acoustic tomography. Eight plantations of varying ages were analyzed using acoustic tomography in order to obtain indicators of wood deterioration. Biometric, climatic, and edaphic data (explanatory variables) were also measured in each plantation. The indicator variables and explanatory variables were compared and evaluated using correlation and principal component analysis. Wood deterioration was modelled using stepwise regression. The indicator variables differed significantly between plantations and were mainly correlated with the biometric variables (age and diameter at breast height). The models explained 81% of the variability of pith rot. The percentage rotten area was minimal in young plantations (1%), and the opposite was observed in mature trees (21.5 to 25.6%). The study findings provide valuable information, enabling foresters to determine the optimal age and diameter for felling Cedrelinga cateniformis in plantations in the Peruvian Amazon
Where are we with respect to research in support of sustainable development goal 13? bibliometric analysis
No full textClimate change is one of the main global challenges, addressed in the United Nations Sustainable Development Goal (SDG) 13, which seeks to "take urgent action to combat climate change and its impacts". The objective of the research was to analyze scientific articles that directly relate to SDG 13 through a bibliometric analysis for the period 2015 to 2024 of the Scopus database using the search term “SDG 13” OR “Sustainable Development Goal 13”. The research identified prolific authors, articles, sources with the highest impact in the area of study, leading institutions and countries in publications along with a detailed keyword analysis. The results show that interest in the study of SDG 13 has grown significantly with a focus on areas such as mitigation and adaptation, low carbon economy and public policy. This analysis provides an overview of advances in SDG 13 research, helps to identify knowledge gaps and emerging areas, and contributes to the formulation of effective policies and the drive for global climate action.The researchers would like to thank the Instituto Nacional de Innovación Agraria through the investment project identified with unique investment code 2472675
Efficiency of a compound parabolic collector for domestic hot water production using the F- chart method
No full textAmong solar energy technologies, differences exist in terms of costs, performance, and environmental sustainability. Flatplate solar collectors, solar towers, and parabolic dish systems offer high thermal efficiency and versatility, but they may be more costly and bulky compared to other collector models. This study focused on evaluating the efficiency of a cylindrical parabolic collector (CPC) for the production of domestic hot water in a high Andean region of Peru, using the F-Chart method. Its performance was estimated considering the energy demand for hot water in a single-family home with four occupants, in accordance with national regulations and international recommendations. Additionally, the collector area, water temperature, and incident solar radiation were determined based on meteorological data obtained using the PVsyst software. On the other hand, the F-Chart methodology was employed to find the dimensionless factors X and Y of the CPC collector, which allowed estimating the solar fraction factor and the monthly useful energy that can be provided by the designed CPC system. The results showed that, during months of maximum solar radiation, the CPC is capable of satisfying between 129% and 144% of the energy demand for hot water. This indicates that there is a surplus of usable solar energy in the collector during the summer, while in autumn and winter, the solar contribution balances and slightly exceeds the demand. CPC can significantly contribute to the development of high Andean areas by improving quality of life, reducing costs, and promoting environmental sustainability compared to other available technologies
Emergence, growth, and quality of Calycophyllum spruceanum plants produced in different containers and substrates
Get PDFThe growing demand for Calycophyllum spruceanum is causing strong pressure on natural populations due to anthropogenic activities. For this reason, it is urgent to develop propagation technologies and production of plants for reforestation activities and establishment of forest plantations for their use and conservation. The objective of this study was to determine the effect of different substrates and containers on the emergence and growth of C. spruceanum. For this purpose, two experiments were conducted. In the first, four substrates were tested to evaluate seedling emergence, while in the second, the growth and quality of plants in different containers and substrates were determined. The maximum emergence values of 62.3%, emergency speed index (ESI) of 2.2, and mean emergence time of 29.9 were determined using a combination of carbonized rice husk (CRH), chicken manure, and decomposed sawdust in a 1:1:1 ratio. The combination of the plastic bag container with CRH and poultry manure in a 1:1 ratio. Substrate gave the best results for total dry biomass (27.40), lignification index (0.19), robustness index (5.56), and Dickson’s quality index (3.26). Therefore, the use of CRH, poultry manure, and decomposed sawdust in a 1:1:1 ratio is recommended for seedling emergence. Similarly, the use of a plastic bag-type container and the substrate CRH and chicken manure in a 1:1 ratio is recommended for the production of C. spruceanum plants.Author contribution Tatiana Mildred Ucañay Ayllon: Validatio
First characterization of somatic proteins of trematodes of the family Paramphistomidae by SDS-PAGE isolated from cattle from the Cajamarca region, Peru.
Get PDFParamphistomosis is a gastrointestinal parasitic disease with high prevalence in tropical and subtropical areas. This study characterized somatic proteins of adult trematodes of the Paramphistomidae family by SDS-PAGE. 630 adult parasites were collected from the rumen and reticulum of slaughtered cattle in Cajamarca, Peru. 21 protein bands with molecular weights ranging from 15 kDa to 119 kDa were identified. These findings may contribute to alternative control programs, including the development of vaccines and selection of appropriate drugs.This research was funded by “Proyecto de Mejoramiento Genético Nacional-PROMEG CUI 2432072"