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Course overview |
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Syllabus |
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Schedule |
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Reference |
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Topic 1 |
Water–the base for life |
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Functions of water |
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Biosphere in relation to hydrosphere, atmosphere and lithosphere |
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What is irrigation? |
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Need for irrigation |
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Advantages of irrigation |
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Disadvantages of irrigation |
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Water resources of India |
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History of irrigation development in India |
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Planned Irrigation Development |
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Perspective irrigation development |
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Topic 2 |
Introduction |
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Surface Flow |
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Ground water Recharge |
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Transpiration |
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Rain fall variability |
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Water requirements of India |
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Total water requirements |
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Topic 3 |
Role of water in plant growth |
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1.Plant-water potential |
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2.Transpiration |
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3.Water and plant process |
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4.Effect of moisture stress on crop growth |
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5. Effects of Excess soil moisture stress |
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Topic 4 |
Introduction |
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Soil Profile |
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Physical properties of soils |
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Requirements of an ideal irrigated soil |
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Plant characteristics |
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Root characteristics |
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Moisture extraction pattern |
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Soils of India |
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Topic 5 |
Introduction |
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Definition-Water requirement |
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Classification of consumptive use of water |
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Classification of evapo-transporation (ET) |
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Factors affecting eavpo-transpiration (ET) |
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Methods of estimating evapo-transpiration |
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Estimation of water requirement for horticultural crops |
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Topic 6 |
Introduction |
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1. Blaney-Criddle method |
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2. Radiation method |
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3.Penman formula |
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4.Pan Evaporimeters |
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4.1.USWB Class-A pan evaporimeter |
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4.2.Sunken screen pan evaporimeter |
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4.3.Piche atmometer |
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Kc values of crops |
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Crop coefficients for different growth stages |
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Topic 7 |
Introduction |
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Critical stages of crop growth |
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Peak Consumptive use and critical period |
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Crop stages and critical period |
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Determination of critical periods of water need |
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Managing the available irrigation water |
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Topic 8 |
Introduction |
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Time of Irrigation |
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Availability of Irrigation Water |
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Criteria for scheduling irrigation |
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1. Plant Criteria |
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2. Criteria based on soil water status |
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3. Meterilogical data |
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Topic 10 |
Introduction |
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Frequency and interval of irrigation |
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Factors affecting frequency of irrigation |
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Climatological approach using irrigation water depth and evaporation relationship |
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Irrigation water/Cumulative pan evaporation ratio (IW/CPE ratio) |
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Topic 11 |
Introduction |
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Classification of irrigation methods |
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1. Surface irrigation |
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2. Subsurface irrigation methods |
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Irrigation water conveyance |
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Topic 12 |
Introduction |
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Suitability of sprinkler irrigation system |
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Merits over surface systems |
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Components of sprinkler system |
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Types of sprinkler system |
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Sprinkler irrigation for different horticultural systems |
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Frequently Asked Questions (FAQ) |
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Topic 13 |
Introduction |
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Suitable crops |
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Suitable slopes |
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Suitable soils |
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Suitable irrigation water |
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Modifications of drip irrigation system |
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Drip irrigation for different horticultural systems |
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Microirrigation |
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Frequently Asked Questions (FAQ) |
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Topic 14 |
Introduction |
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Advantages of Drip fertigation |
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Characteristics of fertilizers for fertigation |
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Sources of nutrients |
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Concentration of nutrients |
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Precautions to be taken during fertigation |
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Time of application |
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Fertigation equipments |
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Disadvantages of fertigation |
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Fertigation through sub-surface irrigation |
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Topic 15 |
Definition-Water Use Efficiency (WUE) |
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Factors affecting WUE |
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Methods to improve economic use of water for irrigation |
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Water use for maximum profit of garden/orchard ecosystem |
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Topic 16 |
Introduction |
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Water management for problem soils |
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Topic 17 |
Introduction |
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Factors affecting the suitability of an irrigation method |
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Basin, furrow or border irrigation |
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Required depth of irrigation application |
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Relative costs of irrigation methods |
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