SSAC-222 Problematic soils and their Management New Syllabus 6th Dean’s

Objectives

1. To acquaint the students about various problem soils like degraded soils, acid soils, saline soils, alkali soils, eroded soils, submerged soils, polluted soils. Also to impart knowledge about remote sensing, GIS, Multipurpose tree and Land capability classification
2. To give hands on training about estimation of various soil and water quality parameters associated with problem soils.

Theory

Soil quality and health, Distribution of Waste land and problem soils in India, Categorization of Problem soils based on properties. Reclamation and management of Acid soils, Saline, Sodic soils, Acid Sulphate soils, Eroded and Compacted soils, polluted soils. Contaminated soils (Pesticide contamination, Heavy metal contamination), Mined soils (Coal mined, Oil mined), Management of Riverine soils, Waterlogged soils, Irrigation water – quality and standards, utilization of saline water in agriculture. Use of Remote sensing and GIS in diagnosis and management of problem soils. Irrigation and water quality. Multipurpose tree (MPT) species, bioremediation through MPTs of soils, land capability and classification, land suitability classification.

Lecture schedule: Theory

1. Soil quality and health, Distribution of Waste land and problem soils in India 1
2. Categorization of Problem soils based on properties. 2
3. Reclamation and management of Acid soils, Saline, Sodic soils, Acid Sulphate soils, Eroded and Compacted soils, polluted soils 3
4. Contaminated soils (Pesticide contamination, Heavy metal contamination), Mined
   soils (Coal mined, Oil mined), 1
5. Management of Riverine soils, Waterlogged soils, 1
6. Irrigation water – quality and standards utilization of saline water in agriculture. 2
7. Use of Remote sensing and GIS in diagnosis and management of problem soils 2
8. Irrigation and water quality 1
9. Multipurpose tree (MPT) species, bio remediation through MPTs of soils 1
10. land capability and classification 1
11. land suitability classification 1

Practical

Determination of pHs and EC of saturation extract of problematic soil. Determination of redox potential in soil, Estimation of water soluble and exchangeable cations in soil and computation of SAR and ESP and characterization of problematic soil. Determination of Gypsum requirement of alkali / sodic soil. Determination of lime requirement of acidic soil. Determination of Quality of irrigation water (pH, EC, Ca, Mg, Na, CO3, HCO3, Cl, SAR and RSC), Determination of nitrate (NO3-) from irrigation water, Determination of dissolved oxygen and free carbon dioxide levels in water samples.

Lecture schedule: Practical

1. Determination of pHs and EC of saturation extract of problematic soil 2
2. Determination of redox potential in soil 1
3. Estimation of water soluble and exchangeable cations in soil and computation of SAR and ESP and characterization of problematic soil. 3
4. Determination of Gypsum requirement of alkali / sodic soil. 1
5. Determination of lime requirement of acidic soil 1
6. Determination of Quality of irrigation water (pH, EC, Ca, Mg, Na, CO3, HCO3, CL, SAR and RSC) 5
7. Determination of nitrate (NO3) from irrigation water 1
8. Determination of dissolved oxygen and free carbon dioxide levels in water samples. 2

Suggested readings

1. Agarwal, R.R., Yadav, J.S.P. and Gupta, R.N. (1982). Saline Alkali soils of India, ICAR,
2. AGROBIOS (India).
3. Brady Nyle C and Ray R Well., 2014. Nature and properties of soils. Pearson Education Inc., New Delhi.
4. Cirsan J. Paul., 1985,. Principles of Remote Sensing. Longman, New York
5. Indian Society of Soil Science., 2002. Fundamentals of Soil Science. IARI, New Delhi.
6. Osman, Khan Towhid., 2018., Management of Soil Problems. Springer publication
7. Srivastava, V. C., 2002. Management of Problem Soils -Principles and Practices New Delhi