Course Content
Unit 1 –
Agriculture significantly contributes to the national economy. Key principles of crop production focus on efficient soil, water, and nutrient management. The cultivation practices of rice, wheat, chickpea, pigeon-pea, sugarcane, groundnut, tomato, and mango are vital. Understanding major Indian soils, the role of NPK, and identifying their deficiency symptoms are essential for crop health. Fundamental biological concepts like cell structure, mitosis, meiosis, Mendelian genetics, photosynthesis, respiration, and transpiration are crucial for crop science. Biomolecules such as carbohydrates, proteins, nucleic acids, enzymes, and vitamins play significant roles in plant metabolism. Effective management of major pests and diseases in rice, wheat, cotton, chickpea, and sugarcane is critical. Rural development programmes and the organizational setup for agricultural research, education, and extension support agricultural growth. Basic statistical tools, including measures of central tendency, dispersion, regression, correlation, probability, and sampling, aid in agricultural data analysis.
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Unit 2
The theory of consumer behavior explains decision-making based on preferences and budget constraints. The theory of demand focuses on the relationship between price and quantity demanded, while elasticity of demand measures demand responsiveness to price changes. Indifference curve analysis shows combinations of goods yielding equal satisfaction, and the theory of the firm examines profit-maximizing production decisions. Cost curves represent production costs, and the theory of supply explores the relationship between price and quantity supplied. Price determination arises from supply and demand interactions, and market classification includes types like perfect competition and monopoly. Macroeconomics studies the economy as a whole, while money and banking analyze monetary systems and financial institutions. National income measures a country's total economic output, and agricultural marketing includes the role, practice, and institutions involved in distribution, along with crop insurance, credit, and cooperatives. Capital formation, agrarian reforms, globalization, and WTO impact Indian agriculture by influencing credit access, investments, and global trade policies.
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Unit 3
Farm management involves principles of farm planning, budgeting, and understanding farming systems. Agricultural production economics focuses on factor-product relationships, marginal costs, and revenues. Agricultural finance includes time value of money, credit classifications, and repayment plans. Credit analysis incorporates the 4R’s, 5C’s, and 7P’s, with a history of agricultural financing in India, led by commercial banks and regional rural banks. Higher financing agencies like RBI, NABARD, and World Bank play key roles in credit access, capital formation, and agrarian reforms in India.
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Unit 4
Extension education focuses on the principles, scope, and importance of agricultural extension programs. It includes planning, evaluation, and models of organizing extension services, with a historical development in the USA, Japan, and India. Rural development addresses key issues and programs from pre-independence to present times. It involves understanding rural sociology, social change, and leadership, while promoting educational psychology and personality development in agricultural extension. The Indian rural system emphasizes community values, structure, and adult education.
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Unit 5
Communication involves principles, concepts, processes, elements, and barriers in teaching methods, with various communication methods and media, including AV aids. Media mix and campaigns, along with cyber extension tools like internet, cybercafés, Kisan Call Centers, and teleconferencing, play a key role. Agriculture journalism focuses on the diffusion and adoption of innovations through adopter categories. Capacity building of extension personnel and farmers is essential, with training for farmers, women, and rural youth. Effective communication and extension methods are crucial for agricultural development.
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Topic Wise Multiple-Choice Questions (MCQs)
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Practice Set for JRF
JRF Social Science (ICAR) Indian Council of Agricultural Research

Cultivation of Gram (Chickpea/Bengal Gram)

  • Botanical Name: Cicer arietinum
  • Family: Fabaceae (Leguminaceae)
  • Sub-Family: Papilionaceae
  • Chromosome Number: 2n = 14 or 16
  • Origin: Afghanistan (South-West Asia)
  • Edible Part: Seeds
  • Test Weight: 140-200 g (Desi), 340-375 g (Kabuli)
  • Protein Content: 21%

 

Importance and Distribution
  • India is the largest producer of gram, contributing 65% of the global area and 70% of total global production.
  • Gram is rich in calcium, iron, and niacin.
  • It is used as a blood purifier, and germinated seeds are recommended for treating scurvy disease.
  • Most legumes fulfill 75% of their nitrogen requirement through root nodules (symbiotic nitrogen fixation).

 

Area and Production

Global Ranking (Area & Production):

  • Area: India > Pakistan > Turkey
  • Production: India > Turkey > Pakistan

India Ranking (Area & Production):

  • Area: Madhya Pradesh > Rajasthan > Uttar Pradesh
  • Production: Madhya Pradesh > Rajasthan > Uttar Pradesh

 

Classification of Gram

  1. Desi or Brown Gram (Cicer arietinum)
  • Most widely cultivated in India.
  • Good branching habit.
  • Small, yellow to dark brown seeds.
  • Test weight: 140-200 g.
  1. Kabuli or White Gram (Cicer kabulium)
  • Larger, attractive white seeds.
  • Plants are taller.
  • Lower yielding compared to Desi gram.
  • Test weight: 340-375 g.

The sour taste of leaves and pods is due to Malic Acid (90-96%) and Oxalic Acid (4-10%). About 4-10 kg of these acids can be obtained from one hectare crop.

 

Botany

  • C3, long-day plant.
  • Tap root system.
  • Cloddy and rough seed bed is required to provide adequate aeration for proper germination, as gram is highly sensitive to soil aeration.
  • Highly susceptible to frost at the flowering stage.

 

Varieties of Gram

Desi Gram Varieties

  • Avrodhi – Wilt resistant.
  • Pusa 256/BG 256 – Most common, best for rainfed conditions.
  • Gaurav – Resistant to Ascochyta blight.
  • RS-10, RS-11 – Good yielding.
  • ICCC-2 – Short-duration variety.
  • Aparna – Grains remain green.
  • Type-2, Radhey, Chaffa, Pusa-209, Uday – Suitable for various conditions.

Kabuli Gram Varieties

  • C-104, K-4, L-144 – Large seeds, high market demand.

 

Cultivation Practices

Seedbed Preparation; A rough seedbed is required to ensure proper aeration. Proper soil preparation helps prevent diseases and improves root penetration.

Sowing Time; Recommended: 15-20 October (2nd fortnight of October).

 

Seed Rate & Spacing

  • Seed Rate: 80-100 kg/ha.
  • Row Spacing: 30 cm row-to-row and 10 cm plant-to-plant.
  • Sowing Depth: 8 cm to prevent wilt disease.

Delayed planting increases the incidence of pod borer (Helicoverpa armigera). 👉 Early and shallow sown crops are more susceptible to wilt.

 

Nutrient Management

  • Farmyard Manure (FYM): 5-10 tons/ha.
  • Recommended NPK Dose: 20:50:20 (N:P:K kg/ha).
  • Micronutrients: Apply ZnSO₄ @ 20-25 kg/ha if deficiency is observed.
  • Rhizobium and PSB treatment (@ 5 g/kg seed) enhances nitrogen fixation and phosphorus uptake.

 

Irrigation Management

  • Pre-flowering and pod development are the most critical stages for irrigation.
  • No irrigation should be provided at the flowering stage to avoid flower drop.

 

Weed Management

  • Herbicide Application: Apply Pendimethalin (Basalin) @ 1 kg a.i./ha before sowing.
  • Hand Weeding: 25-30 DAS (Days After Sowing) to ensure good growth.

 

Pest and Disease Management

Major Insect-Pests & Management

  • Pod Borer (Helicoverpa armigera) Spray Neem oil @ 5 ml/L or Spinosad @ 0.2 ml/L. Install pheromone traps (5/ha).
  • Aphids & Thrips Spray Imidacloprid @ 0.3 ml/L.

 

Major Diseases & Management

  • Wilt (Fusarium oxysporum) Use wilt-resistant varieties (JG 11, Pusa 362). Soil drenching with Carbendazim @ 1 g/L.
  • Ascochyta Blight; Spray Mancozeb @ 2 g/L.

 

Special Practices in Gram Cultivation

Nipping and Topping

  • Definition: Removal of the tips of young branches (50-60 DAS).
  • Purpose: Encourages lateral branching, increases yield.
  • Method: Rapidly passing a flock of sheep in the field.
  • Chemical for Nipping: TIBA (Tri-iodo-benzoic Acid) @ 75 PPM.

 

Yield & Harvesting

  • Maturity Duration: 100-120 days.
  • Yield: 20-25 q/ha (Irrigated), 12-18 q/ha (Rainfed).
  • Harvesting Time: February-March.

 

Storage and Post-Harvest Management

  • Moisture Content: 10-12% for safe storage.
  • Storage Temperature: 5-10°C.
  • Storage Pest Management: Use neem leaves or aluminum phosphide tablets.

 

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