Syllabus - Irrigation Engineering (AN404)

Agriculture Engineering

Irrigation Engineering (AN404)

IV

Unit I

Water resources utilization & Irrigation development

Major and medium irrigation schemes of India, purpose of irrigation, environmental impact of irrigation projects, source of irrigation water, measurement of irrigation water: weir, flumes, orifices and other methods;

Unit II

Open channel water conveyance system

design and lining of irrigation field channels. On farm structures for water conveyance, control & distribution; underground pipe conveyance system: components and design; land grading: criteria for land levelling, land levelling design methods, estimation of earth work;

Unit III

Soil water plant relationship

soil properties influencing irrigation management, soil water movement, infiltration, soil water potential, soil moisture characteristics, soil moisture constants, measurement of soil moisture, moisture stress and plant response; water requirement of crops: concept of evapotranspiration (ET), measurement and estimation of ET.

Unit IV

Irrigation requirement of crops

depth of irrigation, frequency of irrigation, irrigation efficiencies Surface methods of water application: border, check basin and furrow irrigation adaptability, specification and design considerations.

Course Objective

To acquaint and equip the students with the basic principles of Soil-Plant Water relations and their interactions and to develop competency to design water conveyance systems and surface irrigation systems in the field.

Course Outcome

By the end of the semester, the students will understand the basic principles of Soil-Plant Water relations and their interactions and to able to design water conveyance systems and surface irrigation systems in the field.

Practicals

  • Measurement of soil moisture by different soil moisture measuring instruments

  • Measurement of irrigation water

  • Measurement of infiltration characteristics

  • Determination of bulk density

  • Determination of Field capacity and wilting point

  • Estimation of evapotranspiration-Direct methods

  • Estimation of evapotranspiration-In Direct methods

  • Land grading exercises

  • Design of underground pipeline system

  • Estimation of irrigation efficiency

  • Study of advance, recession and computation of infiltration opportunity time

  • Infiltration by inflow-outflow method

  • Evaluation of border irrigation method

  • Evaluation of furrow irrigation method

  • Evaluation of check basin irrigation method

Reference Books

  • Allen R. G., L. S. Pereira, D. Raes, M. Smith. 1998. Crop Evapotranspiration guidelines for computing crop water requirement. Irrigation and drainage Paper 56, FAO of United Nations, Rome.

  • Israelsen O.W, Hansen V. E and Stringham G. E. 1980.Irrigation Principles and Practice, John Wiley & Sons, Inc. USA.

  • MajumdarD. K.2013. Irrigation Water Management Principles.PHI learning Private Limited New Delhi 2nd Edition.

  • Michael A.M. 2012. Irrigation: Theory and Practice. Vikas Publishing House New Delhi.

  • Murthy VVN. 2013. Land and Water Management Engineering. Kalyani Publishers, New Delhi.