Chapter 13 — Components of Agriculture: Exercise Solutions Guide
How to Use This Page
Read the textbook chapter first. Then use this guide to:
1. Revise one-mark answers — memorise the exact keyword or phrase. 2. Practise short answers — write each answer in 3-4 clear points. 3. Prepare detailed answers — learn sub-headings, tables, and map references for five-mark questions. 4. Avoid common mistakes — check the "Common Mistakes" section before the exam. 5. Use the checklist — tick off items as you revise to ensure nothing is missed.
Key Concepts (Quick Recap)
Types of Farming
| Type | Description | Example |
|---|---|---|
| Subsistence farming | Farmer grows crops mainly to feed the family; small landholdings; low use of technology | Rice fields in Odisha, eastern UP |
| Commercial farming | Crops grown for sale in the market; large landholdings; modern inputs | Wheat farms in Punjab, sugarcane in Maharashtra |
| Intensive farming | High labour and capital input per hectare; multiple cropping | Rice cultivation in West Bengal, Kerala |
| Extensive farming | Low labour per hectare; large farms; machinery-driven | Wheat farming in Punjab, Haryana |
| Plantation farming | Single crop grown on large estates; capital-intensive; export-oriented | Tea in Assam, coffee in Karnataka, rubber in Kerala |
Cropping Seasons
| Season | Period | Sowing | Harvesting | Major Crops |
|---|---|---|---|---|
| Kharif | June - October | June-July (with southwest monsoon) | September-October | Rice, jowar, bajra, maize, cotton, jute, groundnut |
| Rabi | October - March | October-December (after monsoon retreat) | March-April | Wheat, barley, gram, mustard, linseed, peas |
| Zaid | March - June | March (with irrigation) | June (before monsoon) | Watermelon, cucumber, muskmelon, vegetables, fodder crops |
Major Food Crops
| Crop | Leading States | Temperature | Rainfall | Soil |
|---|---|---|---|---|
| Rice | West Bengal, Andhra Pradesh, Punjab, Tamil Nadu, Odisha | 22-28 degrees C | 100+ cm | Alluvial (delta), clayey |
| Wheat | Uttar Pradesh, Punjab, Haryana, Madhya Pradesh, Rajasthan | 10-15 degrees C at sowing | 50-75 cm | Alluvial, loamy |
| Jowar (sorghum) | Maharashtra, Karnataka, Andhra Pradesh, Madhya Pradesh | 25-30 degrees C | 40-50 cm | Red, sandy, black |
| Bajra (pearl millet) | Rajasthan, Uttar Pradesh, Haryana, Gujarat | 25-30 degrees C | 40-60 cm | Sandy, red, shallow black |
| Maize | Karnataka, Madhya Pradesh, Maharashtra, Andhra Pradesh | 21-27 degrees C | 50-100 cm | Alluvial, red, black |
Commercial Crops
| Crop | Leading States | Key Use |
|---|---|---|
| Cotton | Maharashtra, Gujarat, Madhya Pradesh, Karnataka | Textile industry raw material |
| Jute | West Bengal, Bihar, Assam | Gunny bags, rope, carpets |
| Sugarcane | Uttar Pradesh, Maharashtra, Karnataka, Tamil Nadu | Sugar, jaggery, ethanol |
| Tea | Assam, West Bengal (Darjeeling), Tamil Nadu (Nilgiris), Kerala | Beverage export |
| Coffee | Karnataka (Coorg, Chikmagalur), Kerala, Tamil Nadu | Beverage export |
| Rubber | Kerala, Tamil Nadu, Karnataka | Tyre, industrial goods |
| Spices | Kerala (pepper, cardamom), Tamil Nadu, Karnataka | Export earnings |
Soil Types and Crops
| Soil Type | Characteristics | Best-Suited Crops | Major Regions |
|---|---|---|---|
| Alluvial | Very fertile, deposited by rivers; rich in potash and lime | Rice, wheat, sugarcane, jute | Northern plains, river deltas |
| Black (Regur) | High moisture retention; rich in calcium, magnesium, potash | Cotton, soyabean, tobacco, citrus | Maharashtra, Gujarat, MP (Deccan Trap) |
| Red | Rich in iron oxide; less fertile; porous | Millets, pulses, groundnut, ragi | Tamil Nadu, Karnataka, AP, Chhattisgarh |
| Laterite | Rich in iron and aluminium; leached soil; low fertility | Cashew, tea, coffee, rubber | Western Ghats, parts of Kerala, Karnataka |
| Arid/Desert | Sandy, low organic matter; needs irrigation | Bajra, guar, jowar | Rajasthan, parts of Gujarat |
Irrigation
India's agriculture depends heavily on monsoon rainfall. Irrigation reduces this dependence.
| Source | Description | Major Regions |
|---|---|---|
| Canals | Government-built networks drawing water from rivers/dams | Punjab, Haryana, UP, Andhra Pradesh |
| Wells | Dug into the ground to access water table | Punjab, Tamil Nadu, Rajasthan |
| Tube wells | Deep bore wells fitted with pumps | Punjab, Haryana, UP, Bihar |
| Tanks | Natural or man-made reservoirs | Tamil Nadu, Andhra Pradesh, Karnataka |
| Drip irrigation | Water delivered directly to plant roots; saves 40-60% water | Maharashtra (grapes), Andhra Pradesh, Karnataka |
Green Revolution
- Period: Mid-1960s onwards (initiated 1965-1968)
- Key inputs: High-Yielding Variety (HYV) seeds, chemical fertilisers, assured irrigation, pesticides
- Benefited crops: Wheat and rice
- Benefited states: Punjab, Haryana, Western Uttar Pradesh, later West Bengal and Tamil Nadu
- Positive results: India became self-sufficient in food grains; food-grain output rose from 82 MT (1960-61) to over 300 MT
- Negative effects: Soil degradation, water-table depletion, regional inequality, increased pesticide residue
Agricultural Reforms
- Land reforms: Abolition of zamindari, ceiling on landholdings, consolidation of land
- Crop insurance: Pradhan Mantri Fasal Bima Yojana (PMFBY) protects farmers against crop loss
- Minimum Support Price (MSP): Government guaranteed price for major crops to protect farmer income
- Kisan Credit Card (KCC): Provides short-term credit for crop purchase at low interest rates
- e-NAM (National Agriculture Market): Online trading portal connecting mandis for better price discovery
I. Choose the Correct Answer (MCQs)
II. Fill in the Blanks
1. Crops grown during the southwest monsoon season are called Kharif crops. 2. Black soil, also called Regur soil, is ideal for cotton cultivation. 3. The Green Revolution was introduced in India in the mid-1960s (1965-1968). 4. Wheat is the major Rabi crop of India. 5. The three cropping seasons in India are Kharif, Rabi, and Zaid. 6. Drip irrigation is the most water-efficient method of irrigation. 7. Punjab and Haryana were the states that benefited most from the Green Revolution. 8. The Kisan Credit Card scheme provides short-term credit to farmers at low interest rates. 9. West Bengal is the leading producer of rice in India. 10. Laterite soil is found in high-rainfall areas of the Western Ghats and is suited for cashew, tea, and rubber.
III. True or False
1. Rice is a Rabi crop.
False. Rice is a Kharif crop. It is sown with the onset of the southwest monsoon in June-July and harvested in September-October. Wheat is the main Rabi crop.
2. Alluvial soil is the most widely spread soil in India.
True. Alluvial soil covers about 43% of the total area under soil in India. It is found in the Indo-Gangetic plains and river deltas, and is highly fertile and suitable for rice, wheat, and sugarcane.
3. Commercial farming uses family labour mostly.
False. Commercial farming uses hired labour, modern machinery, and high capital inputs. It is market-oriented, unlike subsistence farming which relies on family labour for self-consumption.
4. The Zaid season falls between Rabi and Kharif.
True. The Zaid season runs from March to June, between the Rabi harvest (March-April) and the Kharif sowing (June-July). Crops like watermelon, cucumber, and vegetables are grown with irrigation.
5. Jute requires high temperature and heavy rainfall.
True. Jute requires a temperature of 24-35 degrees C and rainfall above 150 cm. It grows well in the humid conditions of West Bengal and Bangladesh in the Ganga-Brahmaputra delta.
6. Tea is grown in arid regions of India.
False. Tea requires well-distributed rainfall of 150-250 cm and grows in sloping, well-drained soils of hill areas. Major tea-growing regions are Assam (Brahmaputra valley), Darjeeling hills, and the Nilgiris — none of which are arid.
7. The Green Revolution increased regional inequality in India.
True. The Green Revolution benefited Punjab, Haryana, and Western UP disproportionately due to their irrigation infrastructure and fertile soil, while rainfed regions of eastern and central India saw little benefit, widening regional disparity.
8. Red soil is rich in nitrogen and humus.
False. Red soil is rich in iron oxide (which gives it the red colour) but is generally deficient in nitrogen, humus, and phosphorus. It is porous and less fertile, suited for millets, pulses, and groundnut.
9. Canal irrigation is most common in South India.
False. Canal irrigation is most common in North India, especially in Punjab, Haryana, and Uttar Pradesh, which have extensive canal networks fed by Himalayan rivers. South India relies more on tank and well irrigation.
10. India has three cropping seasons.
True. India has three distinct cropping seasons: Kharif (June-October, monsoon-dependent), Rabi (October-March, winter-dependent), and Zaid (March-June, irrigation-dependent).
IV. Match the Following
Set A — Crops and Seasons
| Column A | Column B |
|---|---|
| 1. Rice | a. Rabi crop |
| 2. Wheat | b. Zaid crop |
| 3. Watermelon | c. Kharif crop |
| 4. Mustard | d. Rabi crop |
| 5. Bajra | e. Kharif crop |
Set B — Soil Types and Crops
| Column A | Column B |
|---|---|
| 1. Black soil | a. Rice, jute |
| 2. Alluvial soil | b. Cotton, soyabean |
| 3. Laterite soil | c. Cashew, rubber |
| 4. Red soil | d. Millets, groundnut |
| 5. Arid soil | e. Bajra, guar |
Set C — States and Leading Crops
| Column A | Column B |
|---|---|
| 1. West Bengal | a. Tea |
| 2. Assam | b. Jute |
| 3. Maharashtra | c. Cotton |
| 4. Uttar Pradesh | d. Wheat |
| 5. Karnataka | e. Coffee |
V. Very Short Answers
VI. Short Answers
VII. Detailed Answers
1. Explain the different types of agriculture practised in India with characteristics and examples.
India practises several types of agriculture depending on climate, terrain, soil, and economic conditions:
| Type | Characteristics | Examples |
|---|---|---|
| Subsistence farming | Small landholdings; family labour; traditional tools; low output; crops consumed by family | Rice in Odisha, eastern UP, Chhattisgarh |
| Commercial farming | Large landholdings; hired labour; modern inputs; high output; crops sold in market | Wheat in Punjab, cotton in Maharashtra |
| Intensive farming | High labour and capital per hectare; multiple crops per year; small but productive plots | Rice in West Bengal, Kerala |
| Extensive farming | Low labour per hectare; large farms; mechanised; single crop | Wheat in Punjab, Haryana |
| Plantation farming | Large estates; single crop; capital-intensive; processing on site; export-oriented | Tea in Assam, coffee in Karnataka, rubber in Kerala |
| Shifting cultivation | Clearing forest, burning, cultivating for 2-3 years, then moving to new area | Practised in NE India (called Jhum), Odisha, Chhattisgarh |
Key point for the exam: Always name the type, give 2-3 characteristics, and provide a specific Indian example with state name.
2. Describe the three cropping seasons of India with sowing and harvesting times and major crops.
India has three cropping seasons governed by the monsoon cycle and availability of irrigation:
Kharif Season (June-October):
- Sown with the arrival of the southwest monsoon in June-July.
- Harvested in September-October when the monsoon begins to retreat.
- Entirely dependent on monsoon rainfall.
- Crops require warm temperature (25-30 degrees C) and high humidity.
- Major crops: rice, jowar, bajra, maize, cotton, jute, groundnut, soyabean.
- Leading states: West Bengal, Andhra Pradesh, Punjab (rice); Maharashtra, Gujarat (cotton).
Rabi Season (October-March):
- Sown in October-December after the monsoon has retreated.
- Harvested in March-April.
- Depends on residual soil moisture, winter rain from western disturbances, and irrigation.
- Crops require moderate temperature (10-15 degrees C at sowing, warm at harvest).
- Major crops: wheat, barley, gram, mustard, linseed, peas, lentils.
- Leading states: Uttar Pradesh, Punjab, Haryana (wheat); Madhya Pradesh, Rajasthan (mustard).
Zaid Season (March-June):
- Sown in March after the Rabi harvest.
- Harvested in June before the Kharif sowing.
- Depends entirely on irrigation since there is no monsoon.
- Short-duration crops that mature quickly.
- Major crops: watermelon, muskmelon, cucumber, bitter gourd, vegetables, fodder crops.
- Practised mainly in irrigated areas of north and northwest India.
3. Discuss the major food crops of India and their growing conditions.
Rice:
- India's staple food crop; grown on about 44 million hectares.
- Requires temperature of 22-28 degrees C and rainfall above 100 cm.
- Grows best in alluvial soil in river deltas and flood plains.
- Requires standing water (paddy) for 2-3 weeks during growth.
- Leading states: West Bengal, Andhra Pradesh, Punjab, Tamil Nadu, Odisha.
- Punjab and Haryana grow rice through tube-well and canal irrigation despite lower rainfall.
Wheat:
- Second most important food grain; main Rabi crop.
- Requires temperature of 10-15 degrees C at sowing and 20-25 degrees C at harvest.
- Needs 50-75 cm rainfall; grown in areas with cool winter and moderate rainfall.
- Grows best in well-drained alluvial and loamy soil.
- Leading states: Uttar Pradesh (largest producer), Punjab, Haryana, Madhya Pradesh.
- Green Revolution HYV varieties significantly increased wheat output.
Millets (Jowar, Bajra, Ragi):
- Called coarse grains; grown in dry, less fertile areas.
- Jowar: Maharashtra, Karnataka, Andhra Pradesh; needs 40-50 cm rain; grows in red and black soil.
- Bajra: Rajasthan, UP, Haryana, Gujarat; needs 40-60 cm rain; grows in sandy and shallow soil.
- Ragi: Karnataka, Tamil Nadu, Uttarakhand; grows in red and laterite soil; rich in calcium and iron.
Maize:
- Used as food and fodder; grown in both Kharif and Rabi seasons.
- Requires 21-27 degrees C and 50-100 cm rainfall.
- Leading states: Karnataka, Madhya Pradesh, Maharashtra, Andhra Pradesh.
- Grows in alluvial, red, and black soils.
4. Explain the distribution of commercial crops in India.
Cotton:
- India's most important fibre crop; tropical crop needing 21-30 degrees C and 50-100 cm rainfall.
- Requires 200 frost-free days; black soil (Regur) is ideal.
- Leading states: Maharashtra (largest area), Gujarat (largest production), Madhya Pradesh, Karnataka.
- Gujarat and Maharashtra together produce over 60% of India's cotton.
Jute:
- Known as the 'Golden Fibre'; requires 24-35 degrees C and 150+ cm rainfall.
- Grown in well-drained alluvial soil; requires standing water for retting.
- Leading state: West Bengal (over 70% of national production), Bihar, Assam.
- The Hooghly river basin is the core jute-growing region.
Sugarcane:
- Tropical crop needing 21-27 degrees C and 75-150 cm rainfall; also grown with irrigation.
- Requires well-drained, fertile alluvial or black soil.
- Leading states: Uttar Pradesh (largest producer), Maharashtra, Karnataka, Tamil Nadu.
- UP alone accounts for about 40% of India's sugarcane output.
Tea:
- Plantation crop requiring 150-250 cm well-distributed rainfall and 20-30 degrees C.
- Needs well-drained, slightly acidic soil on hill slopes.
- Leading states: Assam (over 50% of production), West Bengal (Darjeeling), Tamil Nadu (Nilgiris), Kerala.
- India is one of the world's largest tea producers and exporters.
Coffee:
- Requires 15-28 degrees C, 150-250 cm rainfall, and well-drained laterite soil on hill slopes.
- Grown under shade trees at 800-1800 m altitude.
- Leading state: Karnataka (Coorg, Chikmagalur — over 70%), Kerala, Tamil Nadu.
- India produces both Arabica and Robusta varieties.
Rubber:
- Requires 25-35 degrees C and 200+ cm rainfall; needs well-drained laterite soil.
- Leading state: Kerala (over 90% of production), Tamil Nadu (Kanyakumari), Karnataka.
- Used in tyre manufacturing and industrial goods.
5. Discuss the importance of irrigation and the different sources of irrigation in India.
Why irrigation is important:
- Indian agriculture is monsoon-dependent; monsoon rainfall is uneven, erratic, and seasonal.
- About 60% of net sown area is rainfed and vulnerable to drought.
- Multiple cropping requires water availability round the year.
- HYV seeds and chemical fertilisers give high yields only with assured water.
- Different crops need water at different stages — irrigation provides control over timing and quantity.
- Drought-prone areas (Rajasthan, Deccan plateau interior) need irrigation for any crop production.
Sources of irrigation in India:
| Source | Share of net irrigated area | Key regions | Advantages | Limitations |
|---|---|---|---|---|
| Canals | ~24% | Punjab, Haryana, UP, AP | Large-scale; government-managed | Depend on dam water; can cause waterlogging |
| Wells | ~29% | Punjab, TN, Rajasthan | Farmer-controlled; easy to dig | Depletion of water table; limited supply |
| Tube wells | ~40% (wells + tube wells) | Punjab, Haryana, UP, Bihar | Deep water access; high discharge | Requires electricity/diesel; over-exploitation |
| Tanks | ~6% | Tamil Nadu, AP, Karnataka | Store rainwater; eco-friendly | Silt up; depend on rainfall to fill |
| Drip/Sprinkler | Growing | Maharashtra, AP, Karnataka | Saves 40-60% water; best for horticulture | High initial cost; maintenance needed |
Key fact for exam: Tube wells and wells together account for the largest share of irrigation in India. Canal irrigation dominates in the northern plains fed by Himalayan rivers.
6. What was the Green Revolution? Discuss its positive and negative impacts.
Definition: The Green Revolution was the transformation of Indian agriculture from the mid-1960s through the adoption of high-yielding variety (HYV) seeds, chemical fertilisers, pesticides, and assured irrigation, leading to a dramatic rise in food-grain production.
Background:
- India faced severe food shortages in the early 1960s; depended on PL-480 wheat imports from the USA.
- Dr M.S. Swaminathan and the Indian Council of Agricultural Research (ICAR) led the programme.
- HYV wheat seeds (Lerma Rojo, Sonalika) from Mexico and rice varieties from IRRI, Philippines were introduced.
Positive impacts:
- Food-grain production rose from 82 million tonnes (1960-61) to over 300 million tonnes.
- India became self-sufficient and a net exporter of food grains.
- Punjab, Haryana, and Western UP became the food bowl of India.
- Farmers' incomes increased significantly in Green Revolution areas.
- Multiple cropping became possible with assured irrigation.
- Encouraged agro-based industries (mills, processing units, fertiliser plants).
- Reduced India's dependence on food imports and improved food security.
Negative impacts:
- Regional inequality: only irrigated, fertile areas benefited; rainfed eastern and central India was left out.
- Soil degradation due to excessive chemical fertiliser and pesticide use.
- Depletion of groundwater in Punjab and Haryana due to over-exploitation of tube wells.
- Loss of soil fertility and organic matter from monoculture of wheat and rice.
- Increased cost of cultivation made small farmers indebted.
- Environmental concerns: pesticide residue in food and water, loss of biodiversity.
- Inter-crop disparity: wheat and rice prospered; pulses and coarse grains were neglected.
Exam tip: Always balance your answer — write 3-4 positive points and 3-4 negative points, and conclude with a brief observation about the need for sustainable alternatives.
Common Mistakes to Avoid
1. Confusing Kharif and Rabi sowing times — Kharif is sown in June (with monsoon), Rabi in October (after monsoon). Do not mix them up.
2. Calling rice a Rabi crop — Rice is always a Kharif crop. Only in irrigated areas of Punjab and Tamil Nadu can a second rice crop be grown, but the main season is Kharif.
3. Writing "black soil is infertile" — Black soil is fertile and has high moisture retention. Red soil is the one often described as less fertile and deficient in nitrogen and humus.
4. Omitting state names in crop answers — Always write the leading states. "Rice is grown in India" is too vague; write "Rice is grown in West Bengal, Andhra Pradesh, Punjab, and Tamil Nadu."
5. Confusing intensive and extensive farming — Intensive = high input per hectare on small land (West Bengal rice). Extensive = low input per hectare on large land (Punjab wheat). Do not reverse them.
6. Forgetting the Zaid season — Many students write only Kharif and Rabi. India has three cropping seasons; always mention Zaid (March-June) with examples like watermelon and cucumber.
7. Writing only positive impacts of the Green Revolution — The exam expects both sides. Always mention soil degradation, groundwater depletion, and regional inequality alongside increased production.
8. Confusing well irrigation and canal irrigation regions — Canals dominate in northern plains (Punjab, Haryana, UP); wells and tanks dominate in peninsular India (Tamil Nadu, Karnataka, Andhra Pradesh).
9. Mixing up commercial crops and their states — Cotton is Maharashtra/Gujarat, not West Bengal. Jute is West Bengal, not Punjab. Memorise each crop with its correct leading state.
10. Writing vague answers without data — Use numbers where possible: "Food-grain output rose from 82 MT to over 300 MT" is better than "Production increased a lot."
Exam Checklist
- [ ] I can define subsistence, commercial, intensive, extensive, and plantation farming with examples
- [ ] I can list all three cropping seasons with sowing time, harvest time, and at least three crops each
- [ ] I can name the leading state for rice (West Bengal), wheat (UP), cotton (Maharashtra/Gujarat), jute (West Bengal), tea (Assam), and coffee (Karnataka)
- [ ] I can match five soil types with their best-suited crops and regions
- [ ] I can describe five sources of irrigation with their regions and limitations
- [ ] I can explain the Green Revolution with at least three positive and three negative impacts
- [ ] I can define MSP, KCC, PMFBY, and e-NAM with their purpose
- [ ] I can distinguish between Kharif and Rabi in a table (time, crops, rainfall, temperature)
- [ ] I can identify at least two commercial crops each for fibre (cotton, jute), beverage (tea, coffee), and industrial (rubber, sugarcane) categories
- [ ] I know that alluvial soil covers ~43% of India and is the most widespread soil type
- [ ] I can write a balanced answer on the Green Revolution (positive + negative impacts)
- [ ] I have practised map work: mark leading crop-producing states on an outline map of India