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UPSC 2017: Which of the following practices can help in water conservation in agriculture? 1. Reduced or zero tillage of the land 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
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Not attemptedCorrect Answer: (c) 1 and 3 only
Zero/reduced tillage conserves soil moisture and curbs evaporation, while retaining crop residues mulches the surface, further reducing evaporative loss; both therefore aid water conservation. Applying gypsum is mainly for reclaiming sodic soils and is not recognised by UPSC as a generic water-saving measure, so statement 2 is not accepted. Thus statements 1 and 3 only are correct. ([edukemy.com](https://edukemy.com/blog/upsc-prelims-2017-question-71/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2017 Environment & Ecology question?▼
The correct answer is option (c): 1 and 3 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Sustainable Agriculture & Forestry question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2017, GS Paper 1, as Question 71. It falls under Environment & Ecology > Sustainable Agriculture & Forestry.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Sustainable Agriculture & Forestry?▼
UPSC has asked 31 questions from Sustainable Agriculture & Forestry (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.