Humberto Aponte

ORCID: 0000-0003-2218-4712
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About
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Research Areas
  • Heavy metals in environment
  • Soil Carbon and Nitrogen Dynamics
  • Mycorrhizal Fungi and Plant Interactions
  • Plant Micronutrient Interactions and Effects
  • Plant nutrient uptake and metabolism
  • Composting and Vermicomposting Techniques
  • Chromium effects and bioremediation
  • Plant and soil sciences
  • Arsenic contamination and mitigation
  • Crop Yield and Soil Fertility
  • Coal and Its By-products
  • Insect and Pesticide Research
  • Plant-Microbe Interactions and Immunity
  • Plant Growth Enhancement Techniques
  • Nematode management and characterization studies
  • Microbial Community Ecology and Physiology
  • Entomopathogenic Microorganisms in Pest Control
  • Phosphorus and nutrient management
  • Irrigation Practices and Water Management
  • Rice Cultivation and Yield Improvement
  • Insect and Arachnid Ecology and Behavior
  • Forest Ecology and Biodiversity Studies
  • Freshwater macroinvertebrate diversity and ecology
  • Fire effects on ecosystems
  • Plant and Biological Electrophysiology Studies

University of O'Higgins
2020-2025

Universidad de La Frontera
2019-2024

Center of Applied Ecology & Sustainability
2022-2023

Universidad Nacional Experimental Francisco de Miranda
2011

Assessment of soil health requires complex evaluation properties and functions responsible for a broad range ecosystem services. Numerous quality indices (SQI) have been suggested the specific groups functions, but comparison various SQI is impossible because they are based on combination properties. To avoid this problem, we suggest an SQI-area approach areas radar diagram chemical, biological physical The new independent principle allows rapid simple parameter soils. Another analyzing...

10.15302/j-fase-2020338 article EN cc-by Frontiers of Agricultural Science and Engineering 2020-01-01

Abstract Soil degradation by metal and metalloid (metal[loid]) contamination represents a widespread environmental threat. Most studies investigating soil metal(loid) have disregarded the quality concept. Enzyme activities (EAs) are good indicators due to their direct connection functions related C, N, P, S cycles sensitivity contamination. This review (a) provides an overview of development indices (SQIs) based on EAs in contaminated soils, (b) evaluates effects individual metal(loid)s...

10.1002/ldr.3630 article EN Land Degradation and Development 2020-06-09

Different techniques have been developed for the remediation of Cu contaminated soils, being phytoremediation a sustainable and environmentally friendly strategy, but its use in mine tailings is scarce. Arbuscular mycorrhizal fungi (AMF) can decrease concentration plants by favouring stabilization this metal through different mechanisms such as production glomalin, immobilization fungal wall hyphae spores, storage vacuoles. Additionally, organic amendments promotes beneficial effects...

10.1016/j.ecoenv.2020.111495 article EN cc-by-nc-nd Ecotoxicology and Environmental Safety 2020-10-21

The main organic input for the elaboration of growing media is peat (Sphagnum spp.), due to its physical and chemical characteristics. However, mining this material creates a considerable impact in local ecosystems from which obtained, along with global because emission greenhouse gasses. Thus, sustainable materials that can replace, or reduce use peat, while maintaining improving attributes plant growth, are greatly needed. Therefore, work aims evaluate effects different proportions compost...

10.3390/horticulturae9020168 article EN cc-by Horticulturae 2023-01-28

Forest fires alter soil microbial communities that are essential to support ecosystem recovery following land burning. These alterations have different responses according abiotic pre- and post-fire conditions fire severity, among others, tend decrease along vegetation over time. Thus, understanding the effects of on is critical evaluate resilience restoration strategies in fire-prone ecosystems. We studied state community-level physiological profiles (CLPPs) prokaryotic community structure...

10.3389/fmicb.2022.824813 article EN cc-by Frontiers in Microbiology 2022-04-28

The relationship between phosphorus (P) availability and water restriction was explored in this study, focusing on its impact use efficiency (PUE) (WUE) various bromegrass (Bromus spp.) genotypes. Under controlled conditions, five genotypes, as well one ryegrass (Lolium perenne) cultivar, were compared by subjecting them to two P levels watering regimes. It determined that combining limitations led reduced plant productivity. Initially, the outperformed bromegrass, but result declined over...

10.3390/agronomy14010121 article EN cc-by Agronomy 2024-01-03

The phosphorus (P) addition can be helpful in the mitigation of adverse effects water deficit stress. However, efficiency wheat utilizing both components has not been assessed field conditions. This research aims to assess P and on use (PUE) productivity (WP) conditions for select cultivars co-adapted climate-induced agronomic challenges. Three were selected based their PUE WP from a previous experiment. trials conducted over two consecutive years, 2020 2021 (Season 1) 2021–2022 2). plants...

10.1016/j.agwat.2024.108762 article EN cc-by-nc-nd Agricultural Water Management 2024-03-12

This study was conducted to evaluate the effect of compost produced with agricultural residues and oat-based biochar, iron oxide halloysite nanoparticles as additives process composting on soil chemical properties, nutrient status growth ryegrass Lolium perenne L. For this, a 90-day mesocosm experiment carried out under greenhouse conditions. Bare basal fertilization treatment were compared soils amended nonadditive (NA compost), supplied biochar (Bioch (Fe (Ha compost). Compost combined...

10.3390/agronomy11040767 article EN cc-by Agronomy 2021-04-14

Despite the global expansion of forest plantations in Chile, their effect on biology properties soil has still been only scarcely studied. Land use change Chilean Coastal Cordillera (36° to 40° S) is mainly attributed conversion native agriculture and (Eucalyptus globulus Pinus radiata de Don). The aim this paper was evaluate changes microbial composition (PCR-DGGE) enzyme activity after substitution a (e.g., Nothofagus spp.) by fast-growing exotic species cropping. most important factors...

10.3390/f14050938 article EN Forests 2023-05-03

Phytoremediation, an environmentally friendly and sustainable approach for addressing Cu-contaminated environments, remains underutilized in mine tailings. Arbuscular mycorrhizal fungi (AMF) play a vital role reducing Cu levels plants through various mechanisms, including glomalin stabilization, immobilization within fungal structures, enhancing plant tolerance to oxidative stress. Yeasts also contribute growth metal by producing phytohormones, solubilizing phosphates, generating...

10.3390/plants12234012 article EN cc-by Plants 2023-11-29

Copper content in soils and litter from fruit orchards Central Chile its relationship with soil microbial activity | J. Tomás Schoffer, Humberto Aponte, Alexander Neaman, Luz María de la Fuente, Eduardo C. Arellano, Pilar M. Gil, Rosanna Ginocchio Agricultural Journals

10.17221/281/2021-pse article EN cc-by-nc Plant Soil and Environment 2022-03-01

The management of mine tailings (MT) is commonly workload heavy, intrusive, and expensive. Phytostabilization offers a promising approach for MT management; however, it poses challenges due to the unfavorable physicochemical properties these wastes. Nevertheless, native microorganisms capable supporting plant growth development could enhance efficacy phytostabilization. This study assesses biological activity microbial communities from root zone Baccharis linearis, which naturally present in...

10.3390/microorganisms11112639 article EN cc-by Microorganisms 2023-10-26
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