1. What is the total water requirement for rice cultivation?
Answer: c) 1100-1250 mm
Explanation: The total water requirement for rice ranges from 1100 to 1250 mm depending on the agro-climatic situation.
Explanation: The total water requirement for rice ranges from 1100 to 1250 mm depending on the agro-climatic situation.
2. During which stage of rice cultivation is water used the least?
Answer: a) Seedling stage
Explanation: Less water is consumed during the seedling stage of rice cultivation.
Explanation: Less water is consumed during the seedling stage of rice cultivation.
3. What is the water depth maintained during the vegetative phase of rice cultivation?
Answer: c) 5 cm
Explanation: During the vegetative phase, a 5 cm submergence is necessary to facilitate tiller production.
Explanation: During the vegetative phase, a 5 cm submergence is necessary to facilitate tiller production.
4. What is the purpose of mid-season drainage in rice cultivation?
Answer: b) To improve root respiration and reduce non-effective tillers
Explanation: Mid-season drainage improves root respiration and checks the development of non-effective tillers.
Explanation: Mid-season drainage improves root respiration and checks the development of non-effective tillers.
5. At which growth stage of rice is water requirement critical?
Answer: b) Reproductive stage
Explanation: The reproductive phase, including flowering, is a critical stage where water stress can severely affect yield.
Explanation: The reproductive phase, including flowering, is a critical stage where water stress can severely affect yield.
6. What is the total water requirement for groundnut?
Answer: b) 500-550 mm
Explanation: Groundnut requires a total of 500-550 mm of water for proper growth.
Explanation: Groundnut requires a total of 500-550 mm of water for proper growth.
7. How many irrigations are typically required for groundnut?
Answer: b) 10
Explanation: Groundnut typically requires 10 irrigations during its growing period.
Explanation: Groundnut typically requires 10 irrigations during its growing period.
8. During which period does groundnut reach peak water requirement?
Answer: b) Peg penetration to pod development
Explanation: Groundnut’s peak water requirement occurs between peg penetration and pod development stages.
Explanation: Groundnut’s peak water requirement occurs between peg penetration and pod development stages.
9. What is the total water requirement for finger millet?
Answer: b) 350 mm
Explanation: Finger millet has a total water requirement of 350 mm.
Explanation: Finger millet has a total water requirement of 350 mm.
10. How many irrigations are required for finger millet?
Answer: b) 6
Explanation: Finger millet requires 6 irrigations during its growing period.
Explanation: Finger millet requires 6 irrigations during its growing period.
11. What is the water requirement for sugarcane cultivation?
Answer: c) 2000-2200 mm
Explanation: The total water requirement for sugarcane is between 2000 and 2200 mm.
Explanation: The total water requirement for sugarcane is between 2000 and 2200 mm.
12. When is the critical period for water demand in sugarcane?
Answer: b) Formative phase (120 days from planting)
Explanation: The formative phase is the critical period for water demand in sugarcane.
Explanation: The formative phase is the critical period for water demand in sugarcane.
13. What is the total water requirement for maize?
Answer: b) 500-600 mm
Explanation: Maize requires a total of 500-600 mm of water for optimal growth.
Explanation: Maize requires a total of 500-600 mm of water for optimal growth.
14. Which stage of maize growth is most critical for water demand?
Answer: b) Tasseling and silking
Explanation: Tasseling and silking stages of maize are critical for water demand.
Explanation: Tasseling and silking stages of maize are critical for water demand.
15. What is the total water requirement for cotton?
Answer: b) 550-600 mm
Explanation: Cotton requires 550-600 mm of water for proper growth.
Explanation: Cotton requires 550-600 mm of water for proper growth.
16. When should irrigation be stopped in cotton cultivation?
Answer: a) When the first boll of the last flush opens
Explanation: Irrigation in cotton is stopped after the first boll of the last flush opens.
Explanation: Irrigation in cotton is stopped after the first boll of the last flush opens.
17. What is the total water requirement for sorghum?
Answer: c) 350-500 mm
Explanation: Sorghum requires a total of 350-500 mm of water.
Explanation: Sorghum requires a total of 350-500 mm of water.
18. How many irrigations are needed for sorghum?
Answer: b) 6
Explanation: Sorghum requires 6 irrigations during its growth cycle.
Explanation: Sorghum requires 6 irrigations during its growth cycle.
19. What is the total water requirement for pulses?
Answer: b) 200-450 mm
Explanation: Pulses require a total water amount of 200-450 mm depending on the variety and environmental conditions.
Explanation: Pulses require a total water amount of 200-450 mm depending on the variety and environmental conditions.
20. How many irrigations are typically required for pulses?
Answer: c) 4
Explanation: Pulses generally require 4 irrigations at critical stages like germination, flowering, and pod formation.
Explanation: Pulses generally require 4 irrigations at critical stages like germination, flowering, and pod formation.
21. What is the irrigation interval during the critical stages for groundnut?
Answer: b) 7-10 days
Explanation: During the critical stages of groundnut, irrigation intervals of 7-10 days are maintained depending on soil and climate conditions.
Explanation: During the critical stages of groundnut, irrigation intervals of 7-10 days are maintained depending on soil and climate conditions.
22. How long is the typical growing period for rice?
Answer: b) 135 days
Explanation: The typical growing period for rice is 135 days.
Explanation: The typical growing period for rice is 135 days.
23. During which stage of maize is the crop less sensitive to water stress?
Answer: b) Grand growth
Explanation: Maize is less sensitive to water stress during the grand growth stage.
Explanation: Maize is less sensitive to water stress during the grand growth stage.
24. What is the water requirement of ragi?
Answer: b) 350 mm
Explanation: Ragi requires 350 mm of water.
Explanation: Ragi requires 350 mm of water.
25. Which crop has the highest total water requirement?
Answer: b) Sugarcane
Explanation: Sugarcane has the highest total water requirement, ranging from 1800 to 2200 mm.
Explanation: Sugarcane has the highest total water requirement, ranging from 1800 to 2200 mm.
