Assessment of Physical and Chemical Properties of Soil Samples in Kaipad Tracts of Kannur District

Santhi, G.R.; Binitha, N.K.; Suresh, P; Ebimol, N.L.

doi:10.20546/ijcmas.2017.611.175

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Majority of samples (57.10 per cent) were high ( > 1 . 5 per cent) in organic carbon followed by 42.1 per cent in the medium range (0.50-1.50 per cent) which is in line with the previous observations [20]. The continuous addition of organic matter through crop residues, rice residues (stubbles and roots), the remnants of rice shrimp cultivation practiced in Kaipad during high saline regime and presence of diverse flora and fauna contribute to high organic carbon status.…”

Section: Assessment Of Soil Quality Indicatorssupporting

confidence: 89%

Assessment of Soil Quality and Nutrient index in Agroecological Unit 7 of Kerala and Mapping Using GIS

Gladis,

Ashok,

Joseph

et al. 2023

CJAST

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Aims: Soil quality assessment is valuable for agricultural production. In this study, 150 soil samples at 0-15 and 15-30 cm depths were collected from Kaipad land (Agroecological unit 7) of Kerala to assess the quality and nutrient index. Study Design: Survey, collection of sample and principal component analysis. Place and Duration of Study: Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani between 2020 and 2021. Methodology: Soil samples were collected from AEU 7 and analyzed for physical, chemical and biological indicators for evaluating soil quality. Principal component analysis (PCA) was carried out with 13 soil parameters which resulted in 6 principal components and a minimum data set (MDS) of nine parameters (pH, EC, organic carbon, available N, Mg, K, B, P and Zn) with eigen values greater than 1, which were used for computing soil quality index. Nutrient index was computed for organic carbon, available N, P and K. Thematic maps on SQI and NI were prepared using geographical information system (GIS). Results: The results revealed that the Kaipad soils (AEU 9) are sandy clay loam in texture, extreme to strong acid condition (pH 3.5- 5.0), high in organic carbon, low in available N and K, medium in available P, deficient in available Ca, Mg and B. Majority (88%) of the soils are rated medium in soil quality. Relative soil quality index ranged between 47.5 and 76.3 per cent in the Kaipad soils with a mean of 61.0 per cent. Conclusion: The soils of Kaipad (AEU 7) under different agricultural land uses experiences various constraints to crop production like extremely acidic pH, high electrical conductivity, . nutrient deficiencies of N, K, Ca, Mg, B and toxicities of Fe and Al. Examining the relationships of soil parameters by principal component analysis indicated that nine soil parameters such as pH, EC, organic carbon, available N, Mg, K, P, Zn and B have significantly contributed to soil quality index, which are the important key indicators of soil quality. The soil quality index was medium for Kaipad soil. Nutrient index was high for organic carbon, low for available N, medium for available P and low for available K.

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Section: Assessment Of Soil Quality Indicatorssupporting

confidence: 89%

Assessment of Soil Quality and Nutrient index in Agroecological Unit 7 of Kerala and Mapping Using GIS

Gladis,

Ashok,

Joseph

et al. 2023

CJAST

View full text Add to dashboard Cite

show abstract

“…The variations in precipitation, temperature, vegetation, topography, parent material and other soil properties can be attributed for the observed difference in N content of the soil (Liu et al, 2021). This medium to high value of available nitrogen content may be due to the presence of high amount of organic matter in these soils and the faster mineralization of nitrogen due to the activity of micro-organisms (Santhi et al, 2017). Ashok Kumar (2000) opined that such variation in N content may be ascribed to soil management, application of FYM and fertilizer to previous crop.…”

Section: Available N (Kg Ha -1 )mentioning

confidence: 97%

Evaluation of Soil Fertility Status of Agro Ecological Zones of Kerala using Nutrient Index Approach

Bastin

Beena

Rajimol

et al. 2022

ASD

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Background: Soil fertility evaluation is much imperative in order to sustain soil fertility and also food grain production in long run. A study was undertaken across five agro ecological zones of Kerala comprising nine districts viz., Thiruvananthapuram, Alappuzha, Ernakulam, Thrissur, Palakkad, Malappuram, Kozhikode, Wayanad and Kannur with the aim of evaluating the soil fertility status using nutrient index approach. Methods: Soil sampling was carried out using GPS representing all the five agro ecological zones of Kerala. Field study was also undertaken in order to collect the basic data. Based on the nutrient index calculation, soil samples were categorized in to low, medium and high classes. Result: The analytical results revealed that the nutrient index class for soil organic carbon fall under medium class for the major share of samples analysed. Available N was in the medium class for all the districts, except Kozhikode where it was in the low category. However, the available P content falls under the high class for most of the soil samples. Available K was in the medium category of soil fertility for the majority of the samples analysed.

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Hydromorphic acid saline soils of Kerala: An ecohydrology based fertility assessment

Leno,

Joseph,

Gladis

et al. 2025

Ecohydrology of Kerala

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Assessment of Physical and Chemical Properties of Soil Samples in Kaipad Tracts of Kannur District

Cited by 4 publications

References 3 publications

Assessment of Soil Quality and Nutrient index in Agroecological Unit 7 of Kerala and Mapping Using GIS

Assessment of Soil Quality and Nutrient index in Agroecological Unit 7 of Kerala and Mapping Using GIS

Evaluation of Soil Fertility Status of Agro Ecological Zones of Kerala using Nutrient Index Approach

Hydromorphic acid saline soils of Kerala: An ecohydrology based fertility assessment

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