Acidez del suelo y su relación con la materia orgánica y la acumulación de nitratos en los suelos de Ixtenco, Tlaxcala
Authors/Creators
- 1. Secretaría de Impulso Agropecuario, Ex-Rancho La Aguanaja S/N, 90600 Apetatitlán, Tlaxcala, México
- 2. Universidad para el Bienestar Benito Juárez García, sede Cuapiaxtla, Carr. Cuapiaxtla Km 2+400, Benito Juárez 8 esq. Universidad Col. Ignacio Allende CP 90566, Cuapiaxtla, Tlaxcala, México
Description
RESUMEN
La aplicación excesiva de fertilizantes nitrogenados, como la urea (CO(NH2)2), puede generar procesos de acidificación del suelo a través de la nitrificación de nitratos (NO3-). En este estudio, se analizó la relación entre la concentración de NO3--N, el porcentaje de materia orgánica (MO) y el pH del suelo en dos rangos diferenciados: suelos ácidos (pH 4.0-6.0) y suelos ligeramente ácidos a ligeramente alcalinos (pH 6.01-8.0). Los resultados evidencian que la acumulación de NO3- es mayor en suelos ácidos, debido a que se encontró que, en la mayoría de las muestras, en porcentajes bajos de MO y pH, la concentración de NO3--N tiende a incrementarse, registrando una media de 100-300 ppm. Este fenómeno se asocia a una aplicación excesiva de CO(NH2)2, lo cual se relaciona al desconocimiento sobre la cantidad de fertilizante que la persona productora agrícola debe aplicar en los cultivos de acuerdo con encuesta realizada a un pequeño grupo que representa el 9.7% del total de 494 muestras analizadas. Por otro lado, en condiciones más estables de pH y MO se encontró una menor concentración de NO3--N con una media de 0-100 ppm, lo cual se asocia a una mayor eficiencia en el uso de fertilizantes, evitándose el fenómeno de acidificación en estos suelos con condiciones más estables de pH y MO.
ABSTRACT
The excessive application of nitrogen fertilizers, such as urea (CO(NH₂)₂), can lead to soil acidification processes through the nitrification of nitrates (NO₃⁻). This study analyzed the relationship between NO₃⁻-N concentration, the percentage of soil organic matter (OM), and soil pH across two distinct ranges: acidic soils (pH 4.0–6.0) and slightly acidic to slightly alkaline soils (pH 6.01–8.0). The results show that NO₃⁻-N accumulation is greater in acidic soils, as most samples with low OM and pH levels showed an increase in NO₃⁻-N concentrations, averaging 100–300 ppm. This phenomenon is associated with the overapplication of CO(NH₂)₂ and reflects a lack of knowledge among farmers regarding the appropriate fertilizer dosage for their crops, as suggested by a survey conducted on a small group representing 9.7% of the total 494 analyzed samples. In contrast, more stable pH and OM conditions were associated with lower NO₃⁻-N concentrations, averaging 0–100 ppm, indicating greater fertilizer use efficiency and the absence of acidification processes in these more stable soils.
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3) Marquez Aguilar et al., 2025.pdf
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Additional details
Identifiers
- URL
- https://www.aytbuap.mx/aytbuap-1039/acidez-del-suelo-y-su-relacion-con-la-materia-organica
- Handle
- 20.500.12371/29441
- Other
- https://drive.google.com/file/d/1IWSXFxY6x5TX4r4TL0DR0FBDmnbtaAZN/view
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