1Medium20 marks
What is the Arnon and Stout (1939) criteria for plant nutrient essentiality ? Give account of forms of each essential plant nutrient element absorbed by plants.
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61 questions from the UPSC 2024 examination.
61 questions
What is the Arnon and Stout (1939) criteria for plant nutrient essentiality ? Give account of forms of each essential plant nutrient element absorbed by plants.
Describe the improved cultivation practices of Chickpea under the following heads : (i) Improved varieties (ii) Seed rate and row to row spacing (iii) Nutrient management (iv) Weed management (v) Insect-pest and disease management
Explain the term water use efficiency in relation to crop production. Discuss the role of pressurised irrigation methods to achieve the objectives of more crop per drop programme.
Answer the following questions in about 150 words each: <!--qid:MAINS_2024_Agriculture-II_Q5-->
Discuss the causal organism, symptoms and management of tungro disease in rice.
Briefly discuss the factors affecting soil erosion. Write down the agronomic measures for soil conservation.
Write the methods of production of seed tubers from true potato seeds (TPS) under protected cultivation.
Illustrate how technology is improving the efficiency of public distribution system in the country.
Briefly explain the Soil-Plant-Atmosphere Continuum (SPAC). How are rooting characteristics related to the moisture extraction pattern from the soil?
Discuss about the cropping patterns of Middle Gangetic Plain and Western Plateau and hills.
Explain different types of farming. Discuss the factors affecting types of farming.
What is distant hybridization? Discuss its applications, achievements and limitations in plant breeding.
Discuss the importance of crop genetic resource conservation and utilization.
Explain the term conventional and conservation tillage. Give account of their comparative effects on soil properties and green house gas emissions.
It is proposed to give four (4) irrigations to six (6) hectare area of wheat crop. Depth of each irrigation is 60 mm, which will be given with a pump of discharge @ 5 litre/second. Find out the duration (in days) of pump operation to discharge the required quantity of water.
Write down the physical environmental factors affecting the crop production. Discuss the effects of changing rainfall pattern on crop production in India.
Describe the objectives of social forestry. Write down the plant species suitable for social forestry.
Explain the ultrastructure of chloroplast with the help of diagram. Briefly discuss the chemical composition and functions of chloroplast in higher plants.
Discuss various tests undertaken in seed testing laboratories.
Give an account of bulk method of breeding. Discuss its merits and demerits.
Give the account of new tools and methods used in agricultural extension.
What is allopolyploidy? Describe its applications and limitations in crops.
What is the scenario of hunger and malnutrition in the country? Discuss the initiatives taken by the government for their mitigation.
Explain the mode of action of organophosphate and Bacillus thuringiensis which are used in pest management.
Discuss the Remote sensing system used for ecosystem analysis. Briefly discuss the use of Remote sensing for drought monitoring.
Discuss banana crop in respect of its varieties, nutrient management, plant protection and post-harvest handling.
Describe the process of anaerobic respiration and explain the factors affecting respiration.
What are the reasons behind food inflation? Discuss how it can be mitigated.
Discuss the factors which contribute to food insecurity in the country despite of significant improvement in food production and distribution.
Define water stress. Discuss the effects of water stress on anatomical and physiological changes in plant growth. Also discuss soil and weather based plant water stress indicators.
Describe different approaches for improving the characteristics of inbred lines.
Give account of soil fertility evaluation techniques. Enlist the points to be considered along with soil test values for fertiliser dose recommendation.
What are the two steps of nitrification and enlist micro-organisms responsible for each ? Write down the importance of nitrification.
Discuss the guidelines for planning and organization of seed production programme.
Discuss the chronological developments of National Extension System of India after independence.
What is phytochrome? Discuss its two forms and differentiate them.
Briefly discuss the decisions involved in Farm management. Write down the principles applied in Farm management.
Discuss the involvement of public and private sectors in production and marketing of seeds.
Describe the five steps of effective extension education process as per Leagans (1967).
Answer the following questions in about 150 words each : <!--qid:MAINS_2024_Agriculture-I_Q5-->
Describe in detail about the weed control measures in Black Gram and Sesame.
Explain the properties and functions of enzymes in plants.
Discuss the systematic position, nature of damage and management of insect and mite pests of brinjal.
Consider the following: 1. Cashew 2. Papaya 3. Red sanders How many of the above trees are actually native to India?
Briefly discuss the crop management practices for stabilising yield in dryland areas. Enlist the crops with their characteristics suitable for dryland agriculture.
Explain the term irrigation scheduling. Elaborate the criteria IW/CPE ratio of irrigation scheduling along with its merits and demerits.
Briefly discuss the principles of agro-ecology.
Answer the following questions in about 150 words each: <!--qid:MAINS_2024_Agriculture-II_Q1-->
Justify the statement that Krishi Vigyan Kendra (KVK) is playing vital role in solving location specific problems and transfer of technologies in agriculture.
Discuss various theories of ion uptake with respect to passive absorption.
Briefly discuss the price instability and its types. Write down the measurements for price instability.
What do you mean by Forest products ? Write about the value added products from forest.
Discuss the changes in irrigated area through different sources of irrigation in India since independence. Classify the irrigation projects based on cultivable command area, purpose served and financial return.
Discuss the reasons for gap between production and consumption of cereals in the country. How can it be rectified?
What are the factors responsible for low production and productivity of pulses in India ? Discuss strategies adopted for enhancing the pulse production and productivity.
Give an account of cytoplasmic genetic male sterility and its utilization in plant breeding. Also discuss its limitations.
Answer the following questions in about 150 words each : <!--qid:MAINS_2024_Agriculture-I_Q1-->
Describe the latest advances in biotechnology for crop improvement.
Write down the principles involved in Integrated Watershed Management. Briefly discuss the relevance of Integrated Watershed Management under climate change scenario.
Discuss the cultural methods of weed control.
What is chromosomal aberration? Briefly discuss the changes in chromosomal structure due to aberrations.