Analysis of soils by means of Pfeiffer’s circular chromatography test and comparison to chemical analysis results

Kokornaczyk, Maria Olga; Primavera, Fabio; Luneia, Roberto; Baumgartner, Stephan; Betti, Lucietta

doi:10.1080/01448765.2016.1214889

Cited by 12 publications

(28 citation statements)

References 14 publications

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“…Concerning the IZ of the chroma, which indicates the mineral behavior of the soil (Pfeiffer, 1984), and the variables present in the chemical analysis, a positive correlation was observed with TOC (Table 6). In agreement with this result, Kokornaczyk et al, (2016) correlated Pfeiffer chromatography with soil chemical variables in different management systems. These researchers found a positive correlation between the levels of organic matter and the radial formations.…”

Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplessupporting

confidence: 78%

“…Restrepo and Pinheiro (2011) consider that "life is the integration of electromagnetic energies", and the "living minerals" (metabolized by microorganisms) present different electric charge and magnetism, thus they express these differences by the radiations, forms, and colors of IZ. Kokornaczyk et al, (2016) observed that radial formations and intense colors indicate good quality soil, while concentric patterns and blurred colors indicate low fertility.…”

Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplesmentioning

confidence: 98%

“…The IZ also reflects the structure and capacity of soil moisture retention (Kokornaczyk et al, 2016), which refers to the decomposition of organic matter and the production of polyuronic acids, responsible for aggregation and formation of clumps (Primavesi, 1982). Thus, soils with higher organic matter and microbial activity, tend to present adequate structure, reflecting IZ with positive patterns.…”

Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplesmentioning

confidence: 99%

“…At the same time, it provides a complete diagnosis of soil health by the interaction of the substances present in the sample. The integration of these substances in turn determines the formation of different patterns that are used to evaluate soil quality (Kokornaczyk et al, 2016). The chemical quality of the soil could be diagnosed by means of comparisons with a database supplied by the correlation between chromes and their respective chemical results (Perumal et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Although PC has already been evaluated, under experimental conditions, as an indicator used to determine mineral, organic and protein components for soil analysis (Pfeiffer, 1984;Kokornaczyk et al, 2016;Maseda, 2016), this chromatography method is unknown to farmers and specialists and it is not disseminated at universities. PC still demands specific studies on the different conditions for each system of agricultural production.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating Pfeiffer Chromatography for Its Validation as an Indicator of Soil Quality

Graciano¹,

Matsumoto²,

Demétrio

et al. 2020

JAS

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Soil monitoring is fundamental to promote sustainability agroecosystems. It is necessary to consider indicators that bring together biological, physical, chemical and inter-relational attributes. Pfeiffer chromatography (PC) represents an important method for soil diagnosis, so the present study aims to analyze it in order to contribute to its validation. The soil samples of 12 production systems were evaluated in quintuplicate. The chromas were elaborated using Whatman no 4 filter paper, and the soil extract was performed by sodium hydroxide solution 1%. The results were obtained using revealing solution (AgNO3 0.5%) ascension by capillarity, and the chrome zones: central, internal, medium and external were correlated to soil penetration, chemical, biological and enzymatic parameters, respectively. Variance analysis was applied to the results that presented normal distribution and the means were compared by Scott-Knott test. T-test for Spearman correlations and principal component analysis were used to evaluate the correlations. There was negative correlation between the central zone and the average penetration resistance within the range 0-40 cm in depth. The internal, medium and external zones presented positive correlation with organic matter, carbon microbial biomass, and enzymatic activities, respectively. Quality standard features such as coloration, size and proportion of zones, presence of enzymatic clouds, peaks and radial lines were also confirmed. Thus, the standardization developed by this study contributed to validation of PC. Since PC is a low-cost and easy-to-perform method, it proves to be a useful tool allowing farmers autonomy to monitoring different agricultural systems, contributing to their production sustainable.

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Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplessupporting

confidence: 78%

Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplesmentioning

confidence: 98%

Section: Figure 1 Pfeiffer Chromatography Of the Soils Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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