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341 results for “Peru”
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Research ArticleOpen accessEvery word in the titleWater Quality in Small-Scale Coffee Production Units, Amazonas, PeruEli Morales Rojas, Segundo Chávez Quintana, Magali García et al.The objective of this research was to determine water quality in small-scale coffee production units in the Amazon Region, Peru. The characterization of the factors associated with coffee farmers was collected through surveys. The Standard Methods for the Examination of Water and Wastewater (APHA) method was used to determine the physicochemical and microbiological parameters of the incoming water (AE) (water … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 11 Oct 2022 · 6,496 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleSustainable Development from a Zootechnical Perspective in PeruJosé Américo Saucedo-Uriarte, Hurley Abel Quispe-Ccasa, Ilse Silvia Cayo-Colca, Manuel Emilio Milla PinoSustainable Development term was born in 1987 and referred to the satisfaction of human needs while preserving the planet resources. There are different interpretations of this definition, but generally, all agree that a Sustainable Development model must be economically viable, socially acceptable and environmentally benign. This manuscript proposes strategies from a zoo technical approach and their contribution to the path … …OnLine Journal of Biological Sciences, Vol. 21, Issue 4 · 3 Dec 2021 · 6,863 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Bacterial Inoculants on Agronomic Performance of Three Genotypes of Potato (Solanum tuberosum L.) in Coastal Areas of PeruSergio Eduardo Contreras Liza, Juan Carlos Custodio Laura, Doris Elizabeth Zúñiga Dávila, Sady García BendezúTo study the effect of interaction of plant genotypes and populations of microorganisms in the rhizosphere may be an important factor to assess the effectiveness of PGPRs on crop production. The objective of this research was to determine the effect of inoculation of four bacterial strains on the agronomic performance of three commercial cultivars of potato in the province of … …American Journal of Agricultural and Biological Sciences, Vol. 12, Issue 3 · 6 Nov 2017 · 8,275 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssessing the Environmental Impacts of Urban Growth Using Land Use/Land Cover, Water Quality and Health Indicators: A Case Study of Arequipa, PeruOswaldo Villena Carpio, Brian D. FathProblem statement: This research assesses the direct effects of urban expansion on land cover/use, river flow, water quality and the indirect effects of these variables in the rate of gastrointestinal disease in people in Arequipa, Peru through the combined use of satellite remote sensing and geographic information systems. Approach: It also uses information about demographic changes, hydrologic data and land … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 8,741 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSustainable Technology for Agriculture at Extreme Altitudes: Design and Evaluation of a Sprinkler Irrigation System in a Peruvian High Andean CommunityJuan Eduardo Suarez Rivadeneira, Freddy A. Manayay, Daniel Olivier Carranza Lizana et al.In high-altitude agroecosystems, erratic rainfall patterns and steep topography severely constrain crop productivity by exposing plants to soil water deficits during critical phenological stages. This study aimed to enhance the productivity of eleven staple and horticultural crops corn (Zea mays), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), eggplant (Solanum melongena), lettuce (Lactuca sativa), carrot (Daucus carota), barley (Hordeum vulgare), celery (Apium … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 2 Oct 2026 · 645 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleWastewater Treatment Using Organic By-Products from Agroindustry: A Case Study in the District of Valera, Amazonas Region, Northern PeruEli Morales-Rojas, Sayda Karina García Caro et al.This research evaluates the use of two types of coagulants based on organic by-products (orange and passion fruit) in wastewater (RA) treatment. The system was composed of glass tanks installed in parallel. The coagulants were elaborated and applied in aqueous solution and in powder form, and 7 physicochemical and microbiological parameters were also analyzed. Data analysis was performed using a … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 2 Jul 2026 · 1,172 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleYield and Nutritional Value of Oats Associated With Vicia in High Andean Conditions of Puno, PeruMarcial Enciso Altamirano, Jimny Nuñez Delgado, Alexandrina Sotelo Méndez et al.The objective of the study was to determine the yield (Kg/ha) and nutritional value of the associated cultivation of oats (Avena sativa) and vicia (Vicia sativa) using different varieties and sowing proportions in high Andean conditions in the Puno region. Three oat varieties were selected: Tayko, Africana and Vilcanota I, and were sown in association with vicia in two proportions: … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 1 Sep 2025 · 5,471 accessesView PDFCite