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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Importance of Agriculture in national economy
00:00
Cultivation of Pigeonpea
Cultivation of Rice
00:00
Cultivation of Wheat
Major pests and diseases of: Rice and Wheat and there Management
00:00
Cultivation of Groundnut
00:00
Cultivation of Tomato
Cultivation of Mango
Cultivation of Chickpea
00:00
Important rural development programmes in India
00:00
Major soils of India
00:00
Cultivation of Sugarcane
Structure and function of cell organelles
00:00
Role of NPK and their deficiency symptoms
00:00
Mitosis and meiosis
00:00
Mendelian genetics
00:00
Elementary knowledge of: Photosynthesis
00:00
Elementary knowledge of Respiration
00:00
Elementary knowledge of Transpiration
00:00
Structure and functions of Carbohydrates and Proteins
00:00
Structure and functions of: Nucleic acids, Enzymes and Vitamins
00:00
Major pests and diseases of: Cotton, Chickpea and Sugarcane and there Management
00:00
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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Theory of Consumer Behaviour
00:00
Theory of Demand
00:00
Elasticity of Demand
00:00
Indifference Curve Analysis
00:00
Theory of Firm
00:00
Cost Curves
00:00
Theory of Supply
00:00
Price Determination
00:00
Market Classification
00:00
Concept of Macroeconomics
00:00
Money and Banking
00:00
National Income
00:00
Agricultural Marketing Role Practice Institutions Problems and Reforms
00:00
Role of Capital and Credit in Agriculture
00:00
Crop Insurance
00:00
Credit Institutions
00:00
Cooperatives
00:00
Capital Formation in Agriculture
00:00
Agrarian Reforms
00:00
Globalization
00:00
WTO & Its Impact on Indian Agriculture
00:00
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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Basic Principles of Farm Management
00:00
Concept of Farming System and Economics of Farming Systems
00:00
Agricultural Production Economics: Scope and Analysis
00:00
Factor-Product Relationship
00:00
Marginal Cost and Marginal Revenue
00:00
Farm Planning and Budgeting
00:00
Agricultural Finance Nature and Scope
00:00
Time Value of Money, Compounding and Discounting
00:00
Agricultural Credit: Meaning, Definition, Need, and Classification
00:00
Credit Analysis: 4R’s, 5C’s, and 7 P’s of Credit
00:00
Repayment Plans
00:00
History of Financing Agriculture in India
00:00
Commercial Banks and Nationalization of Commercial Banks
00:00
Lead Bank Scheme and Regional Rural Banks
00:00
Scale of Finance
00:00
Higher Financing Agencies: RBI, NABARD, AFC, Asian Development Bank, World Bank
00:00
Role of Capital and Credit in Agriculture
00:00
Credit Institutions, Cooperatives.
00:00
Agrarian Reforms in India
00:00
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.
0/14
Extension Education: Concept, meaning, principles, philosophy, scope, and importance.
00:00
Extension Programme Planning and Evaluation: Steps, principles, and models of organizing agricultural extension.
00:00
Historical Development: Extension in the USA, Japan, and India
00:00
Rural Development: Meaning, importance, problems, and rural development programmes in India from the pre-independence era to recent times
00:00
Extension Teaching Methods
Definition and concept of sociology, differences between rural & urban communities
00:00
Social stratification, social groups, social organization, and social change.
Rural Leadership
00:00
Educational psychology
Teaching and Learning
Role of Personality in Agricultural Extension in the Indian Rural System – Its Characteristics
Social Stratification
Social Group
Adult Education
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.
0/13
Communication, Principles, Concepts, Process, Elements and Barriers in teaching methods.
Models of Communication
Element of Communication
Method of Communication
Farm Publication (Mass Communication Method in Extension Education) 1
Farm Publication (Mass Communication Method in Extension Education) 2
Diffusion, and adoption of innovations with adopter categories
00:00
Media mix
Campaign
Cyberspace and Cyber extension
Internet
Kisan Call Centers (KCC)
Teleconferencing
Topic Wise Multiple-Choice Questions (MCQs)
0/1
Communication 1
00:10:00
Practice Set for JRF
JRF Social Science (ICAR) Indian Council of Agricultural Research

Cultivation of Rice in India

Rice (Oryza sativa) is the most important staple food crop in India and is widely grown across different agro-climatic zones. It requires a warm and humid climate, making it ideal for tropical and subtropical regions. The cultivation of rice varies based on seasonal availability of water, soil type, and regional climatic conditions.

 

Introduction

  • Botanical Name: Oryza sativa
  • Family: Graminae / Poaceae
  • Chromosome Number: 2n = 24
  • Origin: Southeast Asia (India, China, Thailand)
  • Inflorescence: Panicle
  • Seed: Caryopsis
  • Test Weight: 20–25 grams (varies depending on variety)
  • Fruit Type: Caryopsis
  • Photosynthetic Pathway: C3
  • Day Length Requirement: Long-day plant (varies with rice variety, some varieties are short-day)
  • Protein Content: 6-8%
  • Shelling Percentage
  • Importance: Staple food for more than half of the world’s population, especially in Asia, Africa, and Latin America.

 

Nutritional Value (per 100g cooked rice)

  • Calories: 130 kcal
  • Carbohydrates: 28g
  • Protein: 2.7g
  • Fat: 0.3g
  • Fiber: 0.4g
  • Vitamins & Minerals: Contains B vitamins (B1, B3, B6), iron, magnesium, phosphorus.

 

Major Rice-Producing Countries

  • Top Producers: China, India, Indonesia, Bangladesh, Vietnam, Thailand, Myanmar, Philippines, Brazil, Pakistan.
  • Leading States in India: West Bengal, Uttar Pradesh, Punjab, Andhra Pradesh, Tamil Nadu, Bihar, Odisha, Chhattisgarh, Assam.

 

Climatic Requirements

  • Temperature: 20°C–35°C (optimum 30°C–32°C).
  • Rainfall: 100–200 cm annually; deep-water rice needs >250 cm.
  • Photoperiod: Short-day plant; flowering is influenced by daylight length.
  • Altitude: Grown up to 2000 m (as in Uttarakhand and Northeast India).

 

Rice Growing Seasons in India

India has three distinct seasons for rice cultivation:

  • Aus (Autumn Rice): Sown in March-April, harvested in August-September.
  • Aman (Kharif/Winter Rice): Sown in June-July, harvested in November-December.
  • Boro (Summer Rice): Sown in December-January, harvested in April-May.

 

Soil Requirements

  • Soil Type: Clayey, alluvial, or loamy soils rich in organic matter.
  • pH Range: 5.5–7.5 (acidic to neutral).
  • Water Holding Capacity: High (puddled fields retain moisture).

 

Rice Varieties: Rice is classified based on genetic, morphological, and climatic factors.

Based on Botanical Classification

  • Indica Rice: Tall, late-maturing, tropical; grown in India.
  • Japonica Rice: Short, early-maturing, temperate; found in Japan, Korea.
  • Javanica Rice: Wild form, grown in Indonesia.

 

  • Based on Grain Quality: Aromatic Rice: Basmati-370, Pusa Basmati-1, Taraori Basmati. Non-Aromatic Superfine Rice: IR-64, PR-106, Gaurav.
  • Deep-Water Rice Varieties: Chakia-59, Madhukar, Jalamagna, Jaladhi-1, Jaladhi-2.
  • Hybrid Rice: First developed in China in 1970s. India released first hybrids in 1994: APRH1, APRH2, KRH1, MGR-1.

 

Methods of Rice Cultivation

Several methods are used depending on land conditions, water availability, and labor resources.

  1. Direct Seeding
  • Broadcasting: Seeds scattered manually; used in drylands.
  • Drilling: Seeds sown in rows (with seed drills).
  • Wet Seeding: Seeds pre-germinated and sown in puddled soil.
  1. Transplanting Method: Seedlings grown in nurseries (20–30 days old). Transplanted at 20 cm × 15 cm spacing (Kharif) or 15 cm × 15 cm (Rabi).
  2. SRI (System of Rice Intensification): Uses less seed (2 kg/acre) and wider spacing (25 cm × 25 cm). Water-saving method; yields higher productivity.
  3. Dapog Method: Popular in the Philippines and Japan. Uses polythene sheets, wooden trays for nursery.

 

Growth Stages

  • Germination (0–7 days) – Seed absorbs water, sprouts emerge.
  • Seedling Stage (8–30 days) – Leaves and roots develop.
  • Tillering Stage (30–45 days) – More shoots grow from the base.
  • Panicle Initiation (45–60 days) – Flowering organs develop inside the stem.
  • Flowering Stage (60–90 days) – Rice flowers bloom and pollination occurs.
  • Grain Filling & Maturity (90–120 days) – Grains develop and harden.
  • Harvesting (120–150 days) – Rice is ready for collection.

 

Nutrient and Fertilizer Management in Rice

  • Nitrogen (N): Sources: Urea, DAP, Ammonium Sulfate. Dose: 80–120 kg N/ha (varies by soil and variety). Application: Split doses—Basal (20–30%), Tillering (40–50%), Panicle initiation (20–30%).
  • Phosphorus (P): Sources: DAP, SSP, Ammonium Polyphosphate. Dose: 40–60 kg P₂O₅/ha. Application: Entire dose as basal before transplanting.
  • Potassium (K): Sources: MOP, SOP. Dose: 40–60 kg K₂O/ha. Application: 50% basal, 50% at panicle initiation.
  • Zinc (Zn) Deficiency: Symptoms: Yellowing (Khaira Disease), stunted growth. Control: ZnSO₄ @ 25–40 kg/ha (basal), foliar spray (0.5% ZnSO₄).
  • Gypsum for Sodic Soils: Dose: 6 tonnes/ha (based on soil test). Application: Before transplanting, mixed into the soil.
  • Best Practices: Use organic manure & crop residues for sustainability. Apply biofertilizers (Azospirillum, PSB) for better nutrient uptake.

 

Weed Management

  • Propanil (Stam F-34): Applied at 6–8 DAT (1–3 leaf stage).
  • Butachlor (Machete): Pre-emergence herbicide.
  • Fluchloralin (Basalin): Incorporated at puddling.
  • Nitrofen (TOK-E-25): Pre-emergence application.

 

Water Management

  • Tillering Stage (0–20 days): Water depth maintained at 5 cm.
  • Primordia Growth to Flowering (40–60 days): Most critical for irrigation.
  • Booting Stage: Requires continuous submergence.

 

Major Diseases of Rice

  1. Bacterial Diseases: Bacterial Leaf Blight (BLB) – Caused by Xanthomonas oryzae.
  2. Viral Diseases: Rice Tungro Virus – Spread by Nephotettix virescens (green leafhopper).
  3. Fungal Diseases
  • Blast (Magnaporthe oryzae) – Affects leaves and panicles.
  • Sheath Blight (Rhizoctonia solani) – Causes lodging.
  • Brown Spot (Cochliobolus miyabeanus) – Nutrient-deficiency related.
  1. Disease Management
  • Use resistant varieties (e.g., Pusa Basmati-1, Jaya).
  • Apply fungicides (e.g., Carbendazim for blast, Copper-based sprays for BLB).

 

Pest Management

  • Stem Borers: Scirpophaga incertulas – Causes dead heart & white ear symptoms. Control: Use Cartap hydrochloride or Neem oil sprays.
  • Leaf Folder (Cnaphalocrocis medinalis); Control: Spray Chlorpyrifos 0.05%.
  • Brown Planthopper (BPH): Control: Apply Pymetrozine 50WG @ 120 g/ha.

 

Yield and Productivity

  • Highest Productivity: Japan (58 q/ha).
  • India’s Average Productivity: 18.5 q/ha.

 

Rice Export and Global Status

  • Top Rice Exporters (1990-91):
    1. Thailand – 4 million tonnes.
    2. USA – 2.4 million tonnes.
    3. India – 5th position.
  • India is now among the top rice exporters, competing with Thailand and Vietnam.

 

Post-Harvest Processing

  • Milling: Removing husk and bran to obtain white rice.
  • Parboiling: Steaming paddy before milling to retain nutrients.
  • Storage: Requires dry conditions to prevent pest infestation and mold growth.

 

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