IAS Mains Agriculture Paper 2012

Download PDF of This Page (Size: 1008K)

Paper 1

Section –A

Q.1. Answer the following in about 150 words each:

Equation

  1. Name the important minerals found in different rocks. Describe chemical weathering of soil.

  2. What is crop-weed competition? Give principles of integrated weed management.

  3. What are principle agricultural regions? Give importance of intercropping system.

  4. What is water harvesting? Why in modern-day agriculture is it becoming increasingly significant?

  5. Why are agroecosystems losing diversity? Give characteristics of crop land ecosystem.

Q.2. Answer the following in about 200 words each:

Equation

  1. What is the difference between modern and sustainable agriculture? Give resource management for sustainable agriculture.

  2. What is subsistence agroforestry system? Describe Taungya cultivation.

  3. What do you understand by degraded land? Discuss the strategies for rehabilitation of such land.

  4. Briefly discuss different aspects of integrated nutrient management and its limitations.

Q.3. Differentiate between the following:

Equation

  1. Cropping system and cropping pattern

  2. Intensification and Diversification of agriculture

  3. Chelates and Boton carriers

  4. Krishi Vigyan Kendra and Agricultural Technology Information Centre

Q.4. Answer the following in about 200 words each:

( Equation

  1. Describe technology assessment and refinement through institution-village linkage programmes.

  2. What are the factors of herbicide selective herbicides for rice and wheat?

  3. What is permanent wilting point (PWP)? Describe surge-flow irrigation.

  4. Briefly discuss about soil management under water stress condition.

Section –B

Q.5. Write short notes on the following in about 150 words each:

Equation

  1. Soil factors affecting greenhouse gases emission

  2. Steps in farm planning and budgeting

  3. Conservation furrow

  4. Value addition in agriculture

  5. Emerging concepts of transfer of technology

Q.6. Answer the following in about 200 words each:

Equation

  1. Describe the factors responsible for soil erosion and agronomic measures to control it.

  2. Briefly discuss about runoff harvesting and recycling on watershed basis.

  3. What are the major problems of agricultural marketing in India?

  4. Discuss about indigenous technical knowledge (ITK) and its importance.

Q.7. Differentiate between the following:

Equation

  1. Water distribution efficiency and Water use efficiency in agriculture

  2. Bio-drainage and Horizontal drainage

  3. Self-help group and Farmer interest groups

  4. Result demonstration and Method demonstration

Q.8. Answer the following in about 200 words each:

Equation

  1. Describe the potassium fixation in soil and factors affecting it.

  2. What is private extension? Give agencies involved in this type of technology dissemination.

  3. What is farm budgeting? Discuss different types of farm budgeting.

  4. What is water quality classification? Describe the hazards arising out of water quality.

IAS Mains Agriculture Paper 2012 ~ IAS Mains Agriculture Paper 2012

Paper 2

Section –A

Q.1. Answer the following questions in about 150 words each:

Equation

  1. Describe different types of structural variations in chromosomes. Mention its genetic implications.

  2. What is maker-assisted selection? Discuss its advantages over conventional phenotype-based selection in crop improvement.

  3. What are male sterile limes? Describe its role in seed production.

  4. What are phytohormones? Describe the physiological roles of auxins gibberellins in plants.

  5. What are the causes of pest outbreak? Discuss the role of pesticides in pest resurgence.

Q.2. Answer the following in about 200 words each:

Equation

  1. What is cell cycle? Describe different stages of interphase of mitosis.

  2. What is detasselling? How it helps in hybrid breeding?

  3. What is host plant resistance? Give a detailed account of the biophysical and biochemical account of the biophysical and biochemical bases of resistance.

  4. Define the term stress. Give and account on how water deficit is created inside the tissue system in relation to injury and tolerance mechanism.

Q.3. Answer the following in about 200 words each:

Equation

  1. Define heterosis. Discuss its application in crop improvement.

  2. “Genetic erosion caused by human activities is a threat to agriculture” –Comment.

  3. Differentiate between seed vigour and viability. How are the two assessed in a seed testing programme?

  4. Discuss the role of transgenic technology for enhancing shelf life of fruits, vegetables and flowers.

Q.4. Write short notes on the following in about 200 words each:

Equation

  1. Phytoalexins

  2. Plant beeder’s right variety protection

  3. Gene for gene phypothesis

  4. Microbial pesticides and their use in agriculture

Section –B

Q.5. Answer the following in about 150 words each:

Equation

  1. Define parthenocarpy. What are the different types of pathenocarpy in fruit? How can it be induced in fruits?

  2. Describe in detail occurrence, symptoms, etiology, epidemiology and management of apple scab disease.

  3. What is landscape architecture? State the principle of landscaping. What are the steps involved in landscaping a public place.

  4. What is legislative control? What are the steps involved in landscaping a public place?

  5. What is protein energy malnutrition (PEM)? Discuss reasons for malnutrition among children.

Q.6. Answer the following in about 250 words each:

Equation

  1. What is aerobic respiration? Describe the Krebs cycle reactions and discuss it significance in plant life.

  2. Write the causes responsible for alternate bearing mango and apple. Suggest effective measure to overcome the problem.

  3. What do you mean by “Intellectual Property”? How can be Intellectual Property be protected? What is the relevance of Intellectual Property Right (IPR) in agriculture?

Q.7. Answer the following in about 200 words each:

Equation

  1. Write commercial cultivation practices of Anthurium with reference to microclimate, propagation and planting, harvesting and yield of Anthurium cutflowers.

  2. Describe the diagnostic symptoms, etiology and management of rhizome rot of ginger or bacterial wilt of solanaceous crops.

  3. Describe the production technology for Orchids under protected conditions.

  4. What are the abiotic and biotic factors responsible for citrus decline? Suggest remedial measures to combat the problem.

Q.8. Write short notes on the following in about 150 words each:

Equation

  1. Antioxidant rich fruit and vegetables

  2. Setellite viruses

  3. Plant biosecurity

  4. Over dominance hypothesis

  5. Phytosanitary measures

Sail through IAS Mains and Prelims: Fully-explained Prelims (Both GS & Aptitude) problems with detailed solutions. Notes & detailed answers for Mains GS, Essay, Complulsory (Hindi and English) papers and optionals.