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Singh, Naorem Janaki
- Effect of Topological Settings on the Soil Acidity Indices and Fertility of East Jaintia Hills, Meghalaya
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Authors
Markynti S. Lyngdoh
1,
Naorem Janaki Singh
1,
D. Thakuria
1,
Vishram Ram
1,
Lala I. P. Ray
1,
K. Mamocha Singh
2
Affiliations
1 School of Natural Resource Management, College of Post Graduate Studies, Central Agricultural University, Umiam (Meghalaya), IN
2 Central Agricultural University, Lamphelpat, Imphal West, Imphal (Manipur), IN
1 School of Natural Resource Management, College of Post Graduate Studies, Central Agricultural University, Umiam (Meghalaya), IN
2 Central Agricultural University, Lamphelpat, Imphal West, Imphal (Manipur), IN
Source
An Asian Journal of Soil Science, Vol 14, No 1&2 (2019), Pagination: 20-27Abstract
The topological settings of the 10 locations of adjacent paddy field near coal mine belt of East Jaintia Hills significantly influenced in causing extreme soil acidity and affect the bio-availability of soil nutrients. It was found that two categories of acidities such as extreme acidity (mean pH 3.16) and moderately acidity (mean pH 4.22) were generated. Results indicate decreased of acidity along the topological settings from top to toe with affirmative relationship with Ex. acidity (0.37 to 1.19 meq/100g), Ex. aluminium (2.86 to 4.35 meq/100g), change in lime requirement (13.75 to 28.67 t/ha) and slight changes in effective CEC (ECEC). Soil contain high organic carbon (SOC, 2.08-2.43%), available nitrogen (N, 293.35 to 319.71 kg/ha), sulphur (S,21.01 to 30.98 kg/ha) and iron (Fe, 222.17 to 241.78 ppm), but low available phosphorus (P2O5, 14.36 to 19.31 kg/ha), DTPA extractable zinc (Zn, 0.27 to 0.44 ppm) and microbial activities. Observations reveals that soils in low laying topographical settings of the paddy field were found maximum in almost all the parameters in comparison with other topographical settings of the study area.Keywords
Coal Mine Paddy Soil, Topological Settings, Soil Acidity Indices,available Nutrients.
References
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- Assessment of Soil Organic Carbon Stock in Different Agro-Ecological Land Use of Ri-Bhoi District, Meghalaya
Abstract Views :590 |
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Authors
Affiliations
1 College of Post Graduate Studies in Agricultural Sciences (Central Agricultural Univeristy), Umiam (Meghalaya), IN
2 North Eastern Space Applications Centre, Umiam (Meghalaya), IN
1 College of Post Graduate Studies in Agricultural Sciences (Central Agricultural Univeristy), Umiam (Meghalaya), IN
2 North Eastern Space Applications Centre, Umiam (Meghalaya), IN
Source
An Asian Journal of Soil Science, Vol 15, No 1 (2020), Pagination: 27-33Abstract
A study was carried out in Ri-Bhoi district of Meghalaya. The studies have focused on organic carbon (C) stocks of soils because of increases in atmospheric carbon dioxide (CO2). Six agro-ecological land use were intersect with 7 slopes to generate soil sample location. Three locations have been selected for each strata to determine the average carbon stock. The mean organic soil organic carbon ranged between 1.53 per cent to 2.43 per cent with maximum in S1T2 (2.42%) followed by S2T2 (2.38%), S2AG2 (2.20%) and minimum in S7OS1 (1.53%) followed by S7OS2 (1.56%) and S6OS1 (1.60%). The mean BD ranged between 1.22 to 1.42 g/cm3 with maximum in S7OS2 (1.42 g/cm3) and minimum in S1T2 (1.22 g/cm-3) and S3T2 (1.22 g/cm-3). The mean SOC stock ranges from 44.41 Mg ha-1 to 32.5 Mg ha-1 with mean SOC stock content was found maximum in S1T2 (44.41 Mg ha-1) followed by S2T2 (43.49 Mg ha-1) and minimum in S7OS1 (32.51 Mg ha-1) followed by S7OS2 (33.1 Mg ha-1).Keywords
Ri-Bhoi, Organic Carbon, Agro-Ecological, Land Use, Carbon Stock, Strata.References
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