Relación espacial entre la conductividad eléctrica y algunas propiedades químicas del suelo

Cortés-D., Diego L.; Pérez-B., Jhon H.; Camacho-Tamayo, Jesús Hernán

doi:10.31910/rudca.v16.n2.2013.912

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…In addition, nutrient availability could be reduced if the amendment changed the soil pH beyond its optimal range (5.5 to 6.8) (Lehmann et al 2015). For example, N, K, Ca, and Mg deficiencies can occur when the pH goes below the optimal range, whereas the solubility of Fe, P, Mn, Zn, and Cu can decrease when the pH goes above the optimal range (Cortés-D et al 2013). In this study, soil pH in the optimum range was achieved by incorporating vermicompost with acidified soils.…”

Section: Plant Growth Parametersmentioning

confidence: 94%

Seaweed biochar (sourced from marine water remediation farms) for soil remediation: Towards an integrated approach of terrestrial-coastal marine water remediation

Ginocchio

Araya

Machado

et al. 2023

BioRes

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Biochar made from seaweed biomass of marine farms established for water pollutant remediation may be a promising amendment for soil remediation in the same coastal territory. The study aimed to assess the soil Cu-immobilizing, pH neutralizing, and nutrient improvement capabilities of a seaweed biochar when incorporated into degraded soil of the same coastal territory (Puchuncaví District, central Chile). Experimental design considered five treatments; degraded soil of Puchuncaví valley (C-), C- amended with either local seaweed biochar (B), vermicompost (V), or its mixture (BV), and a background soil (C+). Experimental soils were placed in pots and kept in a greenhouse (4 weeks). Lolium perenne was then sown and cultivated until week 11. Treatments amended with biochar (B and BV) significantly increased soil pH, available nitrogen and decreased Cu2+ ions. These treatments reached very high EC values but had no negative effect on plant yield. Regarding plant growth, V and BV significantly increased biomass, but V resulted in higher yield because of its higher nutritional status. It was concluded that seaweed biochar, made from local seaweed biomass of a coastal marine water pollutant remediation farm, may be an effective soil amendment for degraded soils of the same coastal territory, although its combination with an organic amendment should be considered.

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Section: Plant Growth Parametersmentioning

confidence: 94%

Seaweed biochar (sourced from marine water remediation farms) for soil remediation: Towards an integrated approach of terrestrial-coastal marine water remediation

Ginocchio

Araya

Machado

et al. 2023

BioRes

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“…The agricultural crops had the highest EC with average values of 321 and 231 μS cm -1 for Oc and Pc, respectively. Fertilization could increase the concentration of salts in the soil (Cortés, Pérez, & Camacho-Tamayo, 2013) and consequently EC.…”

Section: Electric Conductivity (Ec)mentioning

confidence: 99%

Effects of agriculture and seasonality on the soil hydrophysical properties of high-Andean dry páramo grasslands

Gutiérrez

Rivera

Torrez

et al. 2021

Preprint

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One of the most essential ecosystem services provided by high-Andean páramos is streamflow buffering. A combination of soil, vegetation and climate characteristics provides páramos with an exceptional ability to store, regulate and supply water, particularly in their natural state. However, páramo catchments are seldom pristine. Agriculture is one of the most widespread human activities in páramos and considerably affects their soil hydrophysical properties. This research assesses how soil properties are affected by the conversion from natural páramo vegetation to fallow, onion, or potato crops. We measured Soil Organic Matter (SOM), Bulk density (Bd), pH and electric conductivity (EC) at three depths (0–5, 10–15 and 20–25 cm), in a stratified random survey of different land uses in the Eastern Cordillera of Colombia. Samples were collected in wet and dry seasons. Agricultural use affects all the studied properties, increasing Bd (+0.11 g cm-3), decreasing SOM (-5.5%), and increasing pH (+1.3) and EC (+187 µS cm-1). Seasonality did not have a significant effect on the studied properties under natural vegetation; however, there were significant differences between wet season and dry season in agricultural soils in SOM (-7.2% and +5.7% in fallow and potato crop, respectively) and Bd (-0.22 gr cm-3 in crops). These changes show that agriculture in páramo grasslands leads to a significant decrease in soil porosity and water-holding capacity, which affects adversely the ecosystem hydrological regulation capacity. This paper contributes to a better understanding of the complexity of Andean páramos and provide crucial information to improve soil management, a key aspect for ensuring the sustainable provision of hydrological ecosystem services offered by Andean and other mountain ecosystems.

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“…One of the objectives of agriculture is to improve the yield of crops (Cortés et al 2013). Consequently, tools for the analysis of soil variability must be available, given that soils have no homogeneous characteristics (Stadler et al 2015) and traditional measurement processes make the analysis of crop variability inaccurate.…”

Section: Introductionmentioning

confidence: 99%

Propuesta de un sistema de medición de conductividad eléctrica aparente y humedad del suelo para pequeños agricultores

Soto

Camacho-Tamayo

Bermeo-Clavijo

et al. 2022

Rev. U.D.C.A Act. & Div. Cient.

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In the last 30 years soils decreased 73 % of their productive capacity in the world. One of the main reasons for this decrease has been the politics implemented, as well as the absence of opportunity for the small producer to implement improvement strategies that can increase their productivity in the field. Therefore, in this research a soil measurement system is proposed for small farmers, based on the design of two sensors of low cost: (i) Apparent electrical conductivity (ECa) sensor and (ii) moisture sensor. These measurement variables have the particularity that their characteristics can be associated with the physical properties of the soil for decision-making. The sensors developed in this work employ two techniques: Wenner's method for ECa and electrical impedance measurement to identify the dielectric permittivity associated with the water content of the soil. The system is controlled by the Raspberry Pi 3 board through developed software that allows correlating data with its geolocation. The device was tested in controlled laboratory measurements with calibrated instruments, obtaining a coefficient of . Finally, on-site tests were made to validate their use for small farmers.

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Relación espacial entre la conductividad eléctrica y algunas propiedades químicas del suelo

Cited by 5 publications

References 14 publications

Seaweed biochar (sourced from marine water remediation farms) for soil remediation: Towards an integrated approach of terrestrial-coastal marine water remediation

Seaweed biochar (sourced from marine water remediation farms) for soil remediation: Towards an integrated approach of terrestrial-coastal marine water remediation

Effects of agriculture and seasonality on the soil hydrophysical properties of high-Andean dry páramo grasslands

Propuesta de un sistema de medición de conductividad eléctrica aparente y humedad del suelo para pequeños agricultores

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