Water Management Flashcards
Types of irrigation system
Reservoir type
The run off the river type
Pumping type
Reservoir type
A large damn or small water impounding
The run off the river type
When water outlet is closed
Pumping tye
To draw water from underground or open sources
Pumping tye
To draw water from underground or open sources
Efficient water use and disposal
To determine the right amount of water use
What is rice variety
You need more water for the late maturing
What is season
Need less water than dry season
Types of soil
Clay or clay loam soil less water than light soil
Presence of weeds
Always prevent the growth of weeds
Evaporation?
Direct of lose of water from the water surface
Transpiration
Affect bye wheater condition
Seepage
Water move sideways within the soil
Percolation?
It is the downward flow of water
Plants that grow in places where they are not wanted
Weeds
Method of weed control
Physical/mechanical method
Cultural method
Chemical control
Preventive method
Physical/mechanic method
Hand pulling or hand weeding
Cultural method
Produce more tillers Early in a season
Chemical control
Used to kill weeds or suppress their growth
Preventive method
Remove weeds before seed matured
Major insect pest (3)
Rice whorl maggot
Rice caseworm
Common army worm
Cutworm
Rice stem borers
Viral disease
Tungro
Yellow dwarf
Glassy stunt
Grassy stunt
Overlapping
Yellow dwarf
Take place during the late stages of plants
