Research Article


DOI :10.30897/ijegeo.1465671   IUP :10.30897/ijegeo.1465671    Full Text (PDF)

Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India

Ranga Rao VelamalaPawan Kumar Pant

Ascertaining and mapping soil nutrient data is crucial for governments to maintain soil health on farmlands. As part of the soil health card project, a total of 329 geo-referenced soil samples were collected from Thaticherla village, Anantapur mandal, Andhra Pradesh, India. These samples were analyzed for various soil properties such as soil pH, electrical conductivity (EC), organic carbon (OC), available nitrogen (N), available phosphorus (P), available potassium (K), available sulphur (S), DTPA extractable micronutrients (Fe, Mn, Zn, Cu), and hot water-soluble boron (B) at a depth of 0 to 15 cm. The results showed high variability (>35%) in coefficients of variation in Cu, EC, Zn, and B. The findings indicated positive correlation between Zn and Mn; N and OC; and OC and Zn. The data underwent logarithmic and Box-Cox transformations to achieve normalization. The ordinary kriging method was employed to analyze the spatial variability. The findings revealed that exponential model was appropriate for B, Fe, Mn, Zn, and OC; Gaussian for K; JBessel for N; K-Bessel for Cu, P, and S; stable for EC and rational quadratic for pH, respectively. The analysis showed a strong to weak spatial dependency. In the study area, the spatial variability maps exhibited deficiencies of 97%, 96% and 40% for N, OC and Zn, respectively. Therefore, it is urgent to apply suitable manures and fertilizers in the study area to address these issues. The study area exhibited significant variation in spatial patterns, emphasizing the importance of implementing field-specific plans for soil health and environmental management.


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Citations

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APA

Velamala, R.R., & Pant, P.K. (2024). Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India. International Journal of Environment and Geoinformatics, 11(3), 90-105. https://doi.org/10.30897/ijegeo.1465671


AMA

Velamala R R, Pant P K. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India. International Journal of Environment and Geoinformatics. 2024;11(3):90-105. https://doi.org/10.30897/ijegeo.1465671


ABNT

Velamala, R.R.; Pant, P.K. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India. International Journal of Environment and Geoinformatics, [Publisher Location], v. 11, n. 3, p. 90-105, 2024.


Chicago: Author-Date Style

Velamala, Ranga Rao, and Pawan Kumar Pant. 2024. “Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India.” International Journal of Environment and Geoinformatics 11, no. 3: 90-105. https://doi.org/10.30897/ijegeo.1465671


Chicago: Humanities Style

Velamala, Ranga Rao, and Pawan Kumar Pant. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India.” International Journal of Environment and Geoinformatics 11, no. 3 (Dec. 2024): 90-105. https://doi.org/10.30897/ijegeo.1465671


Harvard: Australian Style

Velamala, RR & Pant, PK 2024, 'Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India', International Journal of Environment and Geoinformatics, vol. 11, no. 3, pp. 90-105, viewed 23 Dec. 2024, https://doi.org/10.30897/ijegeo.1465671


Harvard: Author-Date Style

Velamala, R.R. and Pant, P.K. (2024) ‘Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India’, International Journal of Environment and Geoinformatics, 11(3), pp. 90-105. https://doi.org/10.30897/ijegeo.1465671 (23 Dec. 2024).


MLA

Velamala, Ranga Rao, and Pawan Kumar Pant. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India.” International Journal of Environment and Geoinformatics, vol. 11, no. 3, 2024, pp. 90-105. [Database Container], https://doi.org/10.30897/ijegeo.1465671


Vancouver

Velamala RR, Pant PK. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India. International Journal of Environment and Geoinformatics [Internet]. 23 Dec. 2024 [cited 23 Dec. 2024];11(3):90-105. Available from: https://doi.org/10.30897/ijegeo.1465671 doi: 10.30897/ijegeo.1465671


ISNAD

Velamala, RangaRao - Pant, PawanKumar. Modeling the Spatial Variability of Soil Nutrients - A Case from Soil Health Card Project, India”. International Journal of Environment and Geoinformatics 11/3 (Dec. 2024): 90-105. https://doi.org/10.30897/ijegeo.1465671



TIMELINE


Submitted05.04.2024
Accepted10.09.2024
Published Online28.09.2024

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