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2835)When should irrigation be applied for most crops according to the soil moisture content?
Anonymous Quiz
74%
When the soil moisture is below field capacity
7%
At the end of the growing season
14%
At any time during the crop’s growth
5%
After heavy rainfall
2836)The best time to irrigate crops is when the soil moisture is:
Anonymous Quiz
19%
Below wilting point
25%
Above field capacity
33%
At field capacity
23%
Near the wilting point
2837)A major disadvantage of poor irrigation scheduling is:
Anonymous Quiz
60%
Reduced crop yield
33%
Increased water retention
6%
Increased water storage
2%
Higher water efficiency
2838)Which of the following approaches is used for irrigation scheduling based on soil moisture tension?
Anonymous Quiz
52%
Soil moisture depletion approach
30%
Climatological approach
12%
Plant-based approach
6%
Water meter approach
2839)Which tool is most commonly used to measure soil moisture content in irrigation scheduling?
Anonymous Quiz
20%
Gypsum block
64%
Tensiometer
3%
Water meter
12%
Soil moisture probe
2840)What is the main advantage of using volumetric methods to measure irrigation water flow?
Anonymous Quiz
5%
Low cost
39%
High accuracy
13%
Easy to install
43%
Requires no specialized equipment
2841)Which of the following is used to measure the water flow in a channel by floating an object?
Anonymous Quiz
5%
Water meter
43%
Parshall flume
52%
Float method
0%
Tensiometer
2844)Which device is most commonly used to measure small and medium water flow rates in open channels?
Anonymous Quiz
28%
Orifice
15%
Water meter
55%
Parshall flume
3%
Float method
2845)What is the main advantage of the "Tracer method" in measuring water flow?
Anonymous Quiz
17%
It is highly accurate
69%
It can be applied to any water body
14%
It requires specialized equipment
0%
It is only used in large rivers
2848)Which of the following is NOT a measuring device for irrigation water?
Anonymous Quiz
6%
Parshall flume
11%
Weir
22%
Venturi meter
61%
Tensiometer
2850)Which of the following is most suitable for lowland rice cultivation?
Anonymous Quiz
12%
Check basin
82%
Flooding
6%
Furrow method
0%
Drip irrigation
2851)What is the primary disadvantage of flooding as an irrigation method?
Anonymous Quiz
0%
High labour costs
47%
Uneven water distribution
44%
Low water application efficiency
9%
Difficult to manage large stream
2852)In which irrigation method are small plots surrounded by bunds, and water is applied to one basin after another?
Anonymous Quiz
76%
Check basin
15%
Flooding
9%
Ring basin
0%
Border strip
2853)What is the main advantage of using the check basin method in irrigation?
Anonymous Quiz
24%
Suitable for small fields only
24%
Requires minimal labour
35%
Uniform water application
18%
Water is applied to larger areas
2025/10/27 13:39:09
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