upsc mains agriculture paper 2019: CSE mains optional paper-I
Baljit Dhaka

upsc mains agriculture paper 2019: CSE mains optional paper-I

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upsc mains agriculture paper 2019

Civil Services Mains Exam Paper: Agriculture Optional Paper-1 (2019)

In this post, we will discuss civil services mains optional agriculture previous year question paper-i 2019.

Marks: 250                                                                                                                          Time: Three Hours

Question Paper Specific Instructions:

Please read each of the following instructions carefully before attempting questions.

  • There are EIGHT questions divided into two sections.
  • A candidate has to attempt FIVE questions in all.
  • Questions no 1 and 5 are compulsory and out of the remaining, THREE are to be attempted choosing at least ONE from each section.
  • The number of marks carried by a question /part is indicated against it.
  • Word limit in questions, wherever specified should be adhered to.
  • Attempts of questions shall be counted in chronological order. Unless struck off, an attempt of a question shall be counted even if attempted partly. Any page or portion of the page left blank in the answer book must be clearly struck off.


Q1.Describe the following in about 150 words each: 10x5=50 marks

1. (a) Biofortification  10 marks
1. (b) Effect of agricultural inputs on soil pollution.  10 marks
1. (c) What are the effects of ozone layer depletion?  10 marks
1. (d) Agroforestry systems in Indo-Gangetic plains.  10 marks
1. (e) Current status of biological weed management.  10 marks

2. (a)  Differentiate the following with example: 5x4=20

  • 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

2. (b) Define organic farming. Give an account of the social, economic, and environmental dimensions of organic farming. 20 marks

2. (c) Choice of crops and cropping systems is governed by the length of the growing season: critically comment. 10 marks

3. (a) How to increase the yield of wheat under late sown conditions? 20 marks

3. (b) What do you mean by precision farming? Give an account of smart agricultural technologies used in precision farming. 20 marks

3. (c) Calculate weed index in wheat crop with the given information and draw the inference. 10 marks

Treatment Dose Grain Yield
T1- Sulfosulfuron 25 5200
T2- Isoproturon 750 5000
T3- 2,4-D 500 4500
T4- Weed Free Two-Hand Weeding 5500

4. (a) Explain the utility of remote sensing and geographic information system (GIS) in agriculture. 20 marks

4. (b) Describe Ratoon sugarcane management practices for enhancing cane yield and quality. 20 marks

4. (c) Explain the effects of climate change on crop production. 10 marks


Q5. Describe the following in about 150 words each: 10x5=50 marks

5. (a) Leaf color chart and its use for nitrogen management in rice crops.  10 marks
5. (b) Agronomic manipulation for preventing soil erosion.  10 marks
5. (c) Soil health card. 10 marks
5. (d) Biodrainage and its limitations. 10 marks
5. (e) e-NAM (National Agriculture Market) and its advantages.  10 marks

6. (a) Describe contract farming in India and its relevance in the present scenario. 20 marks

6. (b) Differentiate between saline and sodic soils. Give an account of agro-techniques for the management of these soils. 20 marks

6. (c) What do you mean by carbon-sequestration ? Give the role of cropping systems for improving c-sequestration. 10 marks

7. (a) Give an elaborate account of agronomic measures of watershed management. 20 marks

7. (b) What is the present status of pulse production in India? Narrate the constraints and strategies for increasing pulse production. 20 marks

7. (c) Give the contributions of Self-help Groups for rural livelihood security. 10 marks

8. (a) What are the reasons for the low availability of phosphorus nutrients? Give an account of agronomic practices to improve the phosphorus-use efficiency. 20 marks

8. (b) Give an account of modern communication technologies for agricultural transformation. 20 marks

8. (c) What are the components of a drip irrigation system ? Enumerate the benefits of drip-fertigation. 10 marks