Question
Which of the following practices can help in water conservation in agriculture?
1. Reduced or zero tillage of the land e
2. Applying gypsum before irrigating the field
3. Allowing crop residue to remain in the field
Select the correct answer using the code given below :
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer:
C
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Explanation:
Reduced or zero tillage of the land helps in water conservation in agriculture. By reducing or eliminating the tillage operations, the soil structure is preserved, which improves water infiltration and reduces water loss through evaporation. It also helps in retaining soil moisture, leading to efficient water use.
Applying gypsum before irrigating the field is not directly related to water conservation. Gypsum is used to improve soil structure and drainage, but it does not directly contribute to water conservation.
Allowing crop residue to remain in the field is an effective practice for water conservation in agriculture. Crop residue acts as a natural mulch, reducing soil evaporation and preventing water loss. It helps in retaining soil moisture, conserving water, and improving soil health.