Sphyros Lastra- Researcher at Instituto Nacional de Innovación Agraria
Sphyros Lastra
- Researcher at Instituto Nacional de Innovación Agraria
About
13
Publications
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Introduction
Current institution
Publications
Publications (13)
Sustainable fertilization using local resources like manure is crucial for soil health. This study evaluated the potential of guinea pig manure to replace mineral fertilizers in hard yellow maize (hybrid INIA 619) under Peruvian coastal conditions. A split-plot design tested four doses of guinea pig manure (0, 2, 5, 10 t⋅ha⁻¹) and four levels...
Introduction
Monoculture is a significant concern due to its negative impact on soil quality, resource productivity, and agricultural sustainability, particularly in vulnerable communities. This research aims to evaluate high Andean soil management for maca monoculture.
Materials and methods
To this end, interviews were conducted with maca farmers...
Hard yellow maize is a crucial crop in Peruvian agriculture that plays a significant role in food security and livestock production. However, intensive fertilization practices in agronomic management have negatively impacted soil health. To explore more sustainable agricultural technologies, researchers investigated solutions using microorganisms t...
The quality and safety of soil are crucial for ensuring social and economic development and providing contaminant-free food. The availability and quality of soil data, particularly for multiple metals and metalloids, are often insufficient for comprehensive analysis. Soil formation and the distribution of metals are shaped by various factors such a...
p> Background: The exclusive application of synthetic or organic fertilizers continues to generate controversy. Evidence indicates that the integrated use of these practices can enhance crop nutrition, reduce the reliance on synthetic fertilizers, and mitigate their polluting impact on soil quality. Objective: To evaluate organic and mineral fertil...
Ullucus tuberosus is an Andean region crop adapted to high-altitude environments and dryland cultivation. It is an essential resource that guarantees food security due to its carbohydrate, protein, and low-fat content. However, current change patterns in precipitation and temperatures warn of complex scenarios where climate change will affect this...
El principal objetivo de este capitulo es dar a conocer la gran diversidad de cacaos que existen en el Perú para promover tanto su uso como su conservación. El capítulo demuestra que la mayoría de los diferentes cultivares tradicionales y grupos genéticos silvestres tienen una coherencia geográfica que permitirá la implementación de una sistema de...
El principal objetivo de este catálogo es dar a conocer la gran diversidad de cacaos
que existen en el Perú para promover tanto su uso como su conservación. El primer capítulo muestra que la mayoría de los diferentes cultivares tradicionales y
grupos genéticos silvestres tienen una coherencia geográfica que permitirá la implementación de una sist...
Peru is the eighth largest producer of cacao beans globally, but high cadmium contents are constraining access to international markets which have set upper thresholds for permitted concentrations in chocolate and derivatives. Preliminary data have suggested that high cadmium concentrations in cacao beans are restricted to specific regions in the c...
Durante las últimas 2 décadas, la producción y el área sembrada de cacao en el país han aumentado sustancialmente, en gran parte debido a los programas de sustitución de cultivos de uso ilícito. Actualmente, el sector cacaotero del Perú reúne cerca de 90 mil familias productoras con unidades agrícolas de 1,9 hectáreas en promedio, pues a diferencia...
Cacao (Theobroma cacao L.) is among the most important cash crops in tropical countries. The existing cacao genetic diversity represents a key resource to ensure the long-term sustainability of cacao cultivation but it remains vastly underused. The
objective of this paper is to describe the current state of conservation and use of cacao genetic mat...
Aim
Cacao (Theobroma cacao L.) is expected to be vulnerable to climate change. The objectives of this study were to (a) assess the future impact of climate change on cacao in Peru and (b) identify areas where climate change‐tolerant genotypes are potentially present.
Location
Peru.
Methods
Drawing on 19,700 to and1,200 presence points of cultivat...
La diversidad es abundancia o gran cantidad de varias cosas distintas. Es una propiedad que puede describir cualquier objeto o ente. Por ejemplo, en cuanto a alimentación, se tendrá una dieta más diversa, en la medida que se consuma una mayor cantidad de alimentos diferentes. Así también, desde el punto de vista ecológico, la diversidad es una prop...
