UPSC Mains 2019 Agriculture Optional Paper I questions

30 questions from the Civil Services (Main) Examination 2019. Official UPSC paper (PDF) · All Agriculture Optional PYQs

Effect of agricultural inputs on soil pollution.
What are the effects of ozone layer depletion?
10 marks
Agroforestry systems in governed plains.
10 marks
Current status of biological weed management.
Differentiate the following with example
20 marks
Catch crop and trap crop.
5 marks
Narrow spectrum and broad spectrum herbicides.
5 marks
Fodder and forage crops.
5 marks
Social forestry and agroforestry.
5 marks
Define organic farming. Give an account of social, economic and environmental dimensions of organic farming.
20 marks
Choice of crops and cropping systems is governed by length of growing season: critically comment.
10 marks
How to increase the yield of wheat under late sown conditions?
20 marks
What do you mean by precision farming? Give an account of smart agricultural technologies used in precision farming.
20 marks
Calculate weed index in wheat crop with the given information and draw the inference. 10 Treatment Dose Grain yield (gai/ha) (Kg/ha) T, - Sulfosulfuron 5,200 T,~ - 240 4,500 T,— Weed free Two Hand Weeding 5,500
Explain the utility of remote sensing and geographic information system (GIS) in agriculture.
20 marks
Describe Ratoon sugarcane management practices for enhancing cane yield and quality.
20 marks
Explain the effects of climate change on crop production.
Leaf colour chart and its use for nitrogen management in rice crop.
Agronomic manipulation for preventing soil erosion.
Soil health card.
Biodrainage and its limitations. e-NAM (National Agriculture Market) and its advantages.
Describe contract farming in India and its relevance in present scenario.
20 marks
Differentiate between saline and sodic soils. Give an account of agro-techniques for management of these soils.
20 marks
What do you mean by carbon-sequestration? Give the role of cropping systems for improving c-sequestration.
Give an elaborate account of agronomic measures of watershed management.
20 marks
What is the present status of pulse production in India? Narrate the constraints and strategies for increasing the pulse production.
20 marks
Give the contributions of Self-help Groups for rural livelihood security.
10 marks
What are the reasons for low availability of phosphorus nutrient? Give an account of agronomic practices to improve the phosphorus-use efficiency.
20 marks
Give an account of modern communication technologies for agricultural trans- formation.
20 marks
What are the components of drip irrigation system? Enumerate the benefits of drip-fertigation.

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