Discover published sets by community

Explore tens of thousands of sets crafted by our community.

Categories

Agriculture

Irrigation and Water Management

Aquifer Types and Characteristics

Agricultural Water Management Laws

Climate Change Effects on Water Resources

Common Irrigation Problems and Solutions

Erosion Control in Irrigated Fields

Drought-Tolerant Crops

Evapotranspiration and Irrigation

Groundwater for Agricultural Use

Hydroponics and Water Use

Impacts of Over-irrigation

Irrigation Efficiency Metrics

Irrigation Systems Overview

Irrigation Scheduling Techniques

Irrigation Association Certifications

Irrigation and Fertigation

Irrigation Auditing and Performance

International Irrigation and Water Management Practices

Irrigation Control and Automation

Micro-Irrigation Components

Plant Water Requirements

Treated Wastewater in Agriculture

Types of Irrigation Pumps

Water Saving Strategies in Agriculture

Water Quality for Crop Production

Water Conservation Policies and Incentives

Rainwater Harvesting Methods

Salinity Management in Irrigation

Smart Irrigation Technology

Soil Moisture Measurement Techniques

Surface Irrigation Techniques

Subsurface Irrigation Fundamentals

Irrigation Efficiency Metrics

Flashcards

0/6

Still learning

Conveyance Efficiency

The percentage of water delivered by the irrigation canals to the farm that is actually available for use on the farm (not lost in transit). It's calculated as:

Ec = \frac{V_{d}}{V_{c}} \times 100

where

Ec

= Conveyance Efficiency (%),

V_{d}

= volume of water delivered to the farm, and

V_{c}

= volume of water conveyed from the source.

Application Efficiency

The ratio of the water beneficially used by the crop to the water applied. It's calculated as:

E_a = \frac{V_{bu}}{V_{a}} \times 100

where

E_a

= Application Efficiency (%),

V_{bu}

= volume of water beneficially used (e.g., transpiration, building crop tissue), and

V_{a}

= volume of water applied.

Storage Efficiency

The ratio of the volume of water stored for future use to the volume of water delivered to the storage facility. It's calculated as:

Es = \frac{V_{s}}{V_{sf}} \times 100

where

Es

= Storage Efficiency (%),

V_{s}

= volume of water successfully stored, and

V_{sf}

= volume of water supplied to the storage facility.

Distribution Uniformity

A measure of how uniformly water is applied to the field by the irrigation system. It's calculated as the average of the lowest quarter of measurements divided by the average of all measurements:

DU = \frac{\overline{LQ}}{\overline{T}} \times 100

where

DU

= Distribution Uniformity (%),

\overline{LQ}

= mean of the lowest quarter of measurements, and

\overline{T}

= mean of total measurements.

Irrigation Efficiency

The ratio of the total water used beneficially including re-used water to the total water delivered to the farm. It's calculated as:

IE = \frac{V_{bu} + V_{r}}{V_{d}} \times 100

where

IE

= Irrigation Efficiency (%),

V_{bu}

= volume of water beneficially used,

V_{r}

= volume of re-used water, and

V_{d}

= total volume of water delivered to the farm.

Economic Efficiency

The ratio of the value of crop yield to the cost of irrigation water applied. It is generally expressed in terms of value per unit of water ( $/m^3) and calculated as:$

Ee = \frac{CY \times P}{V_{a} \times C}

where

Ee

= Economic Efficiency,

CY

= Crop Yield (kg or units),

P

= Price per yield unit (

per kg or unit),

V_{a}

= volume of water applied, and

= cost per unit volume of water applied (

/m^3).

Know

Still learning

Click to flip

Know