GES

Indian Agriculture

Indian Agriculture

Agriculture is the backbone of the Indian economy, employing about 42% of the workforce and contributing about 18% to GDP. India is the world's largest producer of milk, pulses, and spices, and the second largest producer of rice, wheat, sugarcane, cotton, and fruits & vegetables.

Key Dates

Green Revolution

1960s-70s: introduced HYV seeds, irrigation, fertilizers; led by M.S. Swaminathan and Norman Borlaug

White Revolution

Operation Flood (1970-96): led by Verghese Kurien; made India world's largest milk producer

Net Sown Area

About 140 million hectares — 43% of total geographic area; highest among large countries

Kharif Season

June-October: rice, maize, jowar, bajra, cotton, jute, sugarcane sown with monsoon onset

Rabi Season

October-March: wheat, barley, gram, mustard, peas sown in winter

Zaid Season

March-June: short summer crops like watermelon, muskmelon, cucumber, moong dal

MSP

Minimum Support Price announced by CACP (Commission for Agricultural Costs & Prices) for 23 crops

Top Rice

West Bengal is the largest rice-producing state; India is 2nd largest global producer after China

PM-KISAN

Launched 2019: Rs 6,000/year to farmer families in 3 instalments; covers 11+ crore beneficiaries

e-NAM

Electronic National Agriculture Market (2016): online trading of commodities across 1,000+ mandis

Agriculture Census

2015-16 (latest): 146.45 million holdings; average size 1.08 hectares; 86.2% small/marginal (<2 ha)

Cropping Intensity

National average ~142%; Punjab-Haryana >180% (highest due to irrigation)

Irrigation

About 52% of net sown area is irrigated; rest is rain-fed (dependent on monsoon)

Horticulture

India is 2nd largest producer of fruits and vegetables after China; mango, banana, papaya, coconut are major

Agriculture Export

India's agri-exports ~$50 billion (2022-23); rice, spices, marine products, sugar, cotton are top items

Cropping Seasons & Patterns

India has three distinct cropping seasons: (1) Kharif (June-October, monsoon season): crops sown at onset of SW Monsoon and harvested in autumn; major crops — rice (paddy), maize, jowar (sorghum), bajra (pearl millet), ragi (finger millet), groundnut, cotton, jute, sugarcane, soybean, arhar/tur (pigeon pea); (2) Rabi (October-March, winter season): crops sown in October-November and harvested in spring (March-April); major crops — wheat, barley, gram (chickpea), mustard/rapeseed, linseed, peas, potato, oats; depend on winter rains and irrigation; (3) Zaid (March-June, summer season): short season crops — watermelon, muskmelon, cucumber, moong, urad, vegetables. India's cropping intensity (ratio of gross cropped area to net sown area) is about 140-142%, meaning about 40% of land is cropped more than once. Punjab and Haryana have the highest cropping intensity (>180%) due to extensive irrigation.

Major Food Crops

Rice: India's most important food crop; grown in areas with rainfall >100 cm or irrigated lands; leading states — West Bengal, Uttar Pradesh, Punjab, Andhra Pradesh, Tamil Nadu; India is the world's 2nd largest producer (after China) and largest exporter of rice. Wheat: Second most important food grain; rabi crop; needs cool, dry climate and fertile alluvial/loamy soil; leading states — Uttar Pradesh, Punjab, Haryana, Madhya Pradesh, Rajasthan; India is 2nd largest global producer after China. Millets: Jowar (sorghum — Maharashtra, Karnataka), bajra (pearl millet — Rajasthan, Gujarat, Haryana), ragi (finger millet — Karnataka, Tamil Nadu); highly nutritious, drought-resistant ("nutri-cereals"); India declared 2023 as International Year of Millets (UN resolution). Pulses: India is the largest producer AND consumer of pulses; main types — gram/chana (Madhya Pradesh, Rajasthan), tur/arhar (Maharashtra, Karnataka), moong and urad; pulses fix atmospheric nitrogen, improving soil fertility.

Commercial & Plantation Crops

Sugarcane: Tropical crop; India is 2nd largest global producer (after Brazil); leading states — Uttar Pradesh (largest), Maharashtra, Karnataka; used for sugar, jaggery, molasses, ethanol. Cotton: "White Gold"; kharif crop grown on black/regur soil; leading states — Gujarat (largest), Maharashtra, Telangana, Madhya Pradesh; India is 2nd largest producer after China. Jute: "Golden Fibre"; kharif crop needing high temperature and humidity; grown mainly in West Bengal (80% of production), Bihar, Assam; used for sacking, hessian, carpet backing. Tea: Plantation crop; India is 2nd largest producer (after China); Assam (50%+ production, CTC tea), West Bengal (Darjeeling — "Champagne of teas"), Tamil Nadu (Nilgiris), Kerala; requires well-drained acidic soil, cool climate, regular rainfall. Coffee: India is 6th largest global producer; Karnataka (Coorg, Chikmagalur, Hassan — 70% of production), Kerala, Tamil Nadu; Arabica and Robusta varieties. Rubber: Requires hot, humid climate and >200 cm rainfall; Kerala (90%+ production), Tamil Nadu, Karnataka, Tripura.

Agricultural Revolutions in India

Green Revolution (1960s-70s): Introduction of High Yielding Variety (HYV) seeds (developed by Norman Borlaug), chemical fertilizers, pesticides, and irrigation; spearheaded by M.S. Swaminathan in India; focused on wheat (Punjab, Haryana) and rice; made India self-sufficient in food grains; criticisms include regional imbalance, ecological degradation, and income inequality. White Revolution (Operation Flood, 1970-96): Led by Dr. Verghese Kurien through NDDB (National Dairy Development Board); three phases; made India the world's largest milk producer; empowered millions of rural dairy farmers through cooperatives like Amul. Blue Revolution: Refers to fisheries development; India is 3rd largest fish producer globally and 2nd in aquaculture. Yellow Revolution: Oilseed production. Pink Revolution: Onion and prawn production. Silver Fibre Revolution: Cotton. Golden Revolution: Horticulture and honey production. Second Green Revolution (Evergreen Revolution) aims for sustainable productivity growth across all regions including eastern India.

Agricultural Challenges & Government Initiatives

Key challenges: fragmented landholdings (average size 1.08 hectares, declining further), dependence on monsoon (only 52% of agricultural land is irrigated), soil degradation, depleting groundwater, low productivity compared to global averages, post-harvest losses (25-30% for fruits/vegetables), rural indebtedness. Government initiatives: PM-KISAN (Rs 6,000/year to farmers in 3 instalments), Soil Health Card Scheme (soil testing and nutrient recommendations), PM Fasal Bima Yojana (crop insurance), e-NAM (electronic National Agriculture Market — connects APMCs for transparent pricing), PM-KUSUM (solar energy for agriculture), National Mission on Sustainable Agriculture (NMSA), Neem Coated Urea Policy (reduces urea overuse), Micro Irrigation Fund (promotes drip and sprinkler irrigation). MSP (Minimum Support Price) is announced for 23 crops by CACP based on cost of production (A2+FL formula). FCI procures wheat and rice at MSP for the Public Distribution System (PDS).

Oilseeds, Spices, and Horticulture

Oilseeds: India is the world's 4th largest producer of oilseeds and the largest importer of edible oil. Major oilseeds: groundnut (Gujarat, Rajasthan — largest), mustard/rapeseed (Rajasthan, MP, UP — rabi crop), soybean (MP — "soya state", Maharashtra), sunflower (Karnataka), sesame (West Bengal, Rajasthan), and coconut (Kerala, Karnataka, TN). The Technology Mission on Oilseeds (TMO, 1986) and Yellow Revolution increased production, but India still imports ~60% of its edible oil needs (mainly palm oil from Indonesia/Malaysia). Spices: India is the world's largest producer, consumer, and exporter of spices. The Spices Board of India (HQ Kochi) regulates trade. Major spices: pepper ("Black Gold" — Kerala, Karnataka), cardamom (Kerala — "Queen of Spices"), turmeric (Telangana, TN, AP — Erode is the "Turmeric City"), chilli (AP, Telangana — Guntur is the "Chilli Capital"), ginger (Meghalaya, Mizoram, Kerala), clove and nutmeg (Kerala). India's spice exports were about $4 billion in 2022-23. Horticulture: India is the 2nd largest producer of fruits (after China) and vegetables. Major fruits: mango (UP, AP, Karnataka — India produces ~40% of global mangoes), banana (TN, Gujarat, Maharashtra), apple (J&K, HP), citrus (AP, Maharashtra), grapes (Maharashtra — Nashik). National Horticulture Mission (2005) and Mission for Integrated Development of Horticulture (MIDH) promote production. India's horticulture production has exceeded food grain production in recent years (~340 million tonnes vs ~330 million tonnes).

Irrigation in India

Irrigation is the artificial application of water to soil for crop production. In India, only about 52% of net sown area is irrigated; the rest depends on monsoon rainfall (the "gamble of monsoons"). Sources of irrigation (Census 2011): Tubewells/Borewells — about 46% (dominant in UP, Punjab, Haryana; declining groundwater is a critical concern); Canals — about 24% (important in Punjab, Haryana, AP, Karnataka; major canal systems: Indira Gandhi Canal, Upper and Lower Ganga Canals, Krishna-Godavari canals); Wells — about 17% (traditional, declining); Tanks — about 4% (important in Tamil Nadu, Andhra Pradesh, Karnataka; ancient system of interconnected irrigation tanks); Other sources (sprinkler, drip, rain guns) — about 9% (growing). Groundwater crisis: India is the world's largest user of groundwater (25% of global extraction); Punjab, Haryana, Rajasthan, and Tamil Nadu have severely over-exploited aquifers; the Central Ground Water Authority (CGWA) regulates extraction; Atal Bhujal Yojana (2020) promotes community-led groundwater management in 7 states. Major irrigation projects: Indira Gandhi Canal (Rajasthan), Bhakra-Nangal (Punjab/Haryana), Hirakud Dam (Odisha), Nagarjuna Sagar (Telangana/AP), Sardar Sarovar (Gujarat — Narmada river), and the Ken-Betwa River Linking Project (India's first major inter-basin transfer). Micro-irrigation (drip and sprinkler): more water-efficient; PM Krishi Sinchayee Yojana (PMKSY, 2015) promotes "Per Drop More Crop"; Israel is the model for drip irrigation technology. India's irrigation potential is estimated at 139.9 million hectares; about 113 million hectares have been created so far.

Land Use and Agricultural Holdings

India's total geographical area is about 328.7 million hectares. Land use (2018-19): Net Sown Area — 139.4 million hectares (42.4%); Forests — 71.8 million hectares (21.8%, well below the 33% target of the National Forest Policy); Land not available for cultivation — 43.6 million hectares (permanent pastures, built-up land, barren land); Fallow land — 26 million hectares; Other uncultivated land excluding fallow — 17.1 million hectares. Agricultural holdings (Agriculture Census 2015-16): Total holdings — 146.45 million; Average size — 1.08 hectares (declining — was 2.28 ha in 1970-71); Marginal holdings (<1 ha) — 68.5% of total; Small holdings (1-2 ha) — 17.7%; Semi-medium (2-4 ha) — 9.6%; Medium (4-10 ha) — 3.5%; Large (>10 ha) — 0.6%. Despite marginal/small holdings being 86.2% of the total, they operate only about 47.3% of the total operated area. This extreme fragmentation reduces mechanization potential, economies of scale, and credit access, pushing many small farmers into poverty and indebtedness. Consolidation of holdings has been attempted through legal reforms in Punjab, Haryana, and UP (bhoodan movement, ceiling laws), but progress has been slow. The average Indian farm is much smaller than the global average and is declining further due to population pressure and inheritance-based subdivision.

Animal Husbandry and Dairy

India has the world's largest livestock population (~537 million as per Livestock Census 2019): cattle (193 million — including 51 million crossbred), buffalo (110 million), goat (149 million), sheep (74 million), pig (9 million), poultry (851 million). India is the world's largest milk producer (~230 million tonnes in 2022-23), ahead of the USA and China; per capita availability is ~444 grams/day. The cooperative dairy model pioneered by AMUL (Anand Milk Union Limited, Gujarat, founded 1946) and scaled nationally through Operation Flood (1970-96) by Dr. Verghese Kurien transformed India from a milk-deficient to a milk-surplus nation. White Revolution phases: Phase I (1970-80) linked major metropolitan markets (Delhi, Mumbai, Kolkata, Chennai) to milk-producing rural areas; Phase II (1981-85) expanded the network; Phase III (1986-96) strengthened the infrastructure. Key breeds: Indigenous cattle — Gir (Gujarat), Sahiwal (Punjab), Red Sindhi, Tharparkar, Ongole (AP); Buffalo — Murrah (Haryana — highest milk yield), Mehsana (Gujarat), Jaffarabadi, Surti; Exotic breeds — Holstein-Friesian, Jersey (crossbred with indigenous for higher yield). Challenges: low productivity per animal compared to global averages (India: ~4 litres/day vs USA: ~30 litres/day), inadequate veterinary care, feed and fodder shortage (40% deficit), disease outbreaks (Foot and Mouth Disease, Lumpy Skin Disease 2022), stray cattle menace, and lack of cold chain infrastructure. Government initiatives: Rashtriya Gokul Mission (development of indigenous breeds), National Animal Disease Control Programme (vaccination against FMD and brucellosis), Animal Husbandry Infrastructure Development Fund (AHIDF).

Fisheries and Aquaculture

India is the 3rd largest fish producer in the world (after China and Indonesia) and 2nd largest in aquaculture. Total fish production: ~16.2 million tonnes (2022-23), of which inland fisheries contribute about 73% and marine fisheries about 27%. India's fisheries sector contributes about 1.1% to GDP and 6.7% to agricultural GDP. Marine fisheries: India has a 7,517 km coastline with an Exclusive Economic Zone (EEZ) of 2.02 million sq km; major marine fishing states: Kerala, Gujarat, Tamil Nadu, Karnataka, Maharashtra, Andhra Pradesh; key fish: mackerel, sardine, tuna, pomfret, shrimp, crab; about 40% of marine catch comes from the west coast (Arabian Sea). The Marine Fishing Regulation Acts by coastal states regulate fishing; deep-sea fishing policy encourages larger vessels. Inland fisheries: India's inland fisheries are among the world's largest; major freshwater fish: catla, rohu, mrigal (Indian Major Carps — together called the "trinity of carps"), hilsa (West Bengal — state fish, prized delicacy), prawns; West Bengal is the largest inland fish producer; Andhra Pradesh is the largest aquaculture state ("Shrimp Capital of India" — Nellore); Bihar and UP have significant river fisheries. Aquaculture has grown rapidly: shrimp farming (Penaeus vannamei — white-legged shrimp) is a major export earner; India is the world's largest producer of shrimp; MPEDA (Marine Products Export Development Authority) promotes seafood exports. Blue Revolution (Pradhan Mantri Matsya Sampada Yojana — PMMSY, 2020): Rs 20,050 crore investment to increase fish production to 22 million tonnes by 2024-25; targets infrastructure, cold chain, and technology upgradation.

Agriculture and Technology

Technological interventions in Indian agriculture: (1) High-Yielding Variety (HYV) Seeds — developed during the Green Revolution; varieties like IR-8 rice (IRRI, Philippines), Lerma Rojo wheat; India's own IARI (Indian Agricultural Research Institute, Pusa, Delhi) develops improved varieties; Pusa Basmati 1121 (world's most exported rice variety). (2) Biotechnology — Bt Cotton (Bacillus thuringiensis gene for pest resistance) was India's first and only approved GM (genetically modified) crop (2002); it dramatically reduced pesticide use and increased cotton yields; India became the world's largest cotton grower by area; GM Mustard (DMH-11) was approved by GEAC in 2022 but is controversial; no GM food crop has been approved for cultivation. (3) Precision Agriculture — use of GPS, drones, sensors, and data analytics for targeted application of water, fertilizer, and pesticides; still nascent in India but growing rapidly; drone policy allows agricultural spraying. (4) Digital Agriculture — Kisan Suvidha App (weather, market prices), Kisan Call Centre (1800-180-1551), mKisan Portal (advisory SMSes to 10+ crore farmers), e-NAM (digital mandis), Agri Stack (proposed digital infrastructure for farmers). (5) Organic Farming — Sikkim became India's first fully organic state (2016); the Paramparagat Krishi Vikas Yojana (PKVY) promotes organic clusters; India's organic food market is growing at 20% annually; Zero Budget Natural Farming (ZBNF, promoted by Subhash Palekar) practiced in Andhra Pradesh. (6) ICAR (Indian Council of Agricultural Research) coordinates agricultural research through 113 institutes, 81 agricultural universities, and Krishi Vigyan Kendras (KVKs) at the district level.

Crop-Climate-Soil Associations

Understanding the relationship between crops, climate, and soil is critical for UPSC Geography: Rice — requires high temperature (20-27 degrees C), high humidity, and rainfall >100 cm; grown in deltaic alluvial soils and clayey soils; transplanted in puddled fields (standing water); can be grown in all seasons (aus/autumn rice, aman/winter rice, boro/summer rice in WB). Wheat — needs cool growing season (10-15 degrees C) with bright sunshine at maturity; well-drained loamy/clayey soils; requires 50-75 cm rainfall or irrigation; Indo-Gangetic Plain is ideal. Cotton — requires 21-30 degrees C, moderate rainfall (50-100 cm), 210+ frost-free days; black soil (regur) is ideal (retains moisture); Deccan Plateau and Gujarat. Sugarcane — tropical crop needing 21-27 degrees C, rainfall >75 cm, deep rich loamy soil; 12-18 month crop; UP produces most but yield is higher in Maharashtra/Karnataka (tropical > subtropical). Tea — requires 20-30 degrees C, >150 cm well-distributed rainfall, well-drained acidic soil (pH 4.5-5.5); grown on hillslopes and plateau areas; Assam Valley and Darjeeling, Nilgiris, Munnar. Coffee — requires 15-28 degrees C, 150-250 cm rainfall, well-drained laterite/forest loam; shade-grown under forest canopy; Western Ghats (Coorg, Chikmagalur). Groundnut — requires 20-30 degrees C, moderate rainfall (50-75 cm), well-drained sandy loam; Gujarat (largest), Rajasthan, AP. Soybean — kharif crop needing moderate temperature and rainfall; black soil suitable; MP is "Soya Pradesh." Rubber — tropical: needs >25 degrees C, >200 cm rainfall, deep alluvial/laterite soil; Kerala dominates.

Food Security and Public Distribution System

India's food security framework rests on three pillars: availability (domestic production + imports), accessibility (distribution through PDS), and affordability (subsidized prices). The National Food Security Act (NFSA, 2013) guarantees subsidized foodgrains to about 67% of India's population (75% rural, 50% urban) through the Targeted Public Distribution System (TPDS). Entitlements: 5 kg of foodgrains per person per month at subsidized rates (rice at Rs 3/kg, wheat at Rs 2/kg, coarse grains at Rs 1/kg) to priority households; Antyodaya Anna Yojana (AAY) families get 35 kg per household at the same rates. Food Corporation of India (FCI) is the central procurement and distribution agency; it procures wheat and rice at MSP from farmers and supplies through over 5.3 lakh Fair Price Shops (FPS). India maintains buffer stocks of about 50-60 million tonnes of foodgrains in FCI godowns. During COVID-19, the PM Garib Kalyan Ann Yojana (PMGKAY) provided free additional foodgrains (5 kg/person/month) to 80 crore beneficiaries — one of the world's largest food distribution programmes. One Nation One Ration Card (ONORC) allows inter-state portability of ration cards, benefiting migrant workers. Challenges: leakage and diversion (estimated 40% of PDS grains do not reach beneficiaries in some states), storage losses, nutritional inadequacy (PDS provides mainly calories from cereals, not protein/micronutrients), and exclusion errors. Reforms: biometric authentication (Aadhaar-linked), direct benefit transfer (DBT) of food subsidy, and modernization of FCI godowns.

Agricultural Marketing and Trade

Agricultural marketing in India operates primarily through the APMC (Agricultural Produce Market Committee) system established under state APMC Acts. Under this system, all first-sale agricultural produce must be sold through licensed commission agents (arhtiyas) in regulated mandis (markets). There are over 7,000 APMCs and about 22,000 rural markets in India. Criticisms: APMCs create monopolistic intermediaries, restrict farmer choice, and impose market fees (mandi cess) that increase consumer prices; farmers often receive only 20-30% of the final consumer price. Reforms: e-NAM (2016) enables online trading across mandis; Model APMC Act (2003, updated 2017) allows direct marketing, contract farming, and private markets; the three Farm Acts of 2020 (repealed in 2021 after farmer protests) attempted to allow trade outside APMCs, expand contract farming, and remove stocking limits — they were repealed after year-long protests at Delhi borders by farmer unions, primarily from Punjab and Haryana. Agricultural exports (2022-23): about $50 billion; top export items — rice (India is the world's largest rice exporter; basmati rice accounts for about $4.7 billion), spices ($4 billion), marine products ($7.4 billion — shrimp is the largest item), sugar, cotton, fresh fruits and vegetables, meat. India banned non-basmati white rice exports in 2023 to control domestic prices. Agricultural imports: edible oil (palm, soybean, sunflower — ~$20 billion), pulses (~$3 billion), fresh fruits (apples, almonds). APEDA (Agricultural and Processed Food Products Export Development Authority) promotes agri-exports. India is a member of WTO and subject to the Agreement on Agriculture, which limits domestic subsidies and market access barriers.

Contract Farming and Allied Activities

Contract farming is a system where farmers enter into pre-sowing agreements with buyers (companies, processors, exporters) to produce specific crops at agreed prices and quality standards. Advantages: assured market, price certainty, access to better inputs and technology, reduced risk for small farmers. Disadvantages: unequal bargaining power (large companies vs small farmers), quality disputes, contract enforcement issues, monoculture risk. India's Model Contract Farming Act (2018) provides a legal framework; states like Punjab, Haryana, and MP have adopted versions. Major contract farming examples: PepsiCo's potato farming in Punjab (for Lay's chips), ITC's e-Choupal soybean procurement in MP, Nestle's milk procurement in Punjab, and sugarcane contracts by sugar mills across UP and Maharashtra. Allied agricultural activities: Sericulture (silk production) — India is the 2nd largest silk producer after China; Karnataka produces 70% of India's silk; Mysore silk is famous; types: mulberry silk (Karnataka), eri silk (Assam), muga silk (Assam — golden silk, exclusive to Assam, GI tagged), and tasar silk (Jharkhand, Chhattisgarh). Apiculture (beekeeping) — India produces about 1.2 lakh tonnes of honey; the National Beekeeping and Honey Mission (NBHM) promotes production; Apis cerana indica (Indian honeybee) and Apis mellifera (Italian bee) are major species. Lac production — India is the world's largest lac producer (about 50-60% of global output); Jharkhand, Chhattisgarh, and West Bengal are major producers; lac is used in shellac, cosmetics, and food coatings.

Soil Health and Fertilizer Use

India's agricultural soils face multiple degradation threats: nutrient depletion (continuous cropping without adequate replenishment), salinization (waterlogging and poor drainage, especially in irrigated areas of Punjab, Haryana, and Gujarat), erosion (water and wind), compaction, acidification, and organic carbon decline. The NPK (Nitrogen, Phosphorus, Potassium) consumption ratio is highly skewed: India's ideal ratio is 4:2:1 but the actual ratio is about 8.2:3.2:1 (2022), indicating massive over-use of nitrogen (urea) relative to phosphorus and potassium. This imbalance degrades soil health and reduces crop response to fertilizers. Government interventions: (1) Soil Health Card Scheme (2015): provides soil testing results with nutrient recommendations to every farmer; 12+ crore cards distributed. (2) Neem Coated Urea Policy (2015): mandatory coating of urea with neem oil to slow nitrogen release and reduce overuse; also deters industrial diversion of subsidized urea. (3) Nano Urea (IFFCO, 2021): liquid urea applied to plant leaves; 500 ml nano urea bottle replaces 45 kg urea bag; reduces nitrogen pollution and soil degradation. (4) PM Programme for Restoration, Awareness, Nourishment and Amelioration of Mother Earth (PM-PRANAM, 2023): incentivizes states that reduce chemical fertilizer use and promote bio-fertilizers. India imports about 30% of its fertilizer needs; urea subsidy alone costs the government about Rs 1.3 lakh crore annually. Organic alternatives: vermicomposting, biofertilizers (Rhizobium for pulses, Azotobacter for wheat, Blue-Green Algae for rice), and green manuring (growing dhaincha or sesbania and ploughing it back into soil). Zero Budget Natural Farming (ZBNF): promoted by Subhash Palekar; uses jeevamrutha (cow dung + urine fermented mixture) and mulching; AP has 6 lakh farmers practicing ZBNF.

Climate Change Impact on Indian Agriculture

Agriculture is both vulnerable to and a contributor to climate change. Impact on Indian agriculture: (1) Temperature stress: IPCC estimates 5-10% decline in crop yields per degree C of warming; wheat and rice are particularly sensitive to heat waves during flowering and grain-filling stages; the 2022 March heatwave reduced India's wheat yield by 5-7%. (2) Changing rainfall patterns: more intense but fewer rainy days (increasing dry spells within the monsoon); delayed monsoon onset disrupts sowing schedules; erratic rainfall causes both droughts and floods in the same season; India lost about 36% of its rice crop in some eastern states due to 2022 monsoon variability. (3) Water stress: Himalayan glaciers (source of rivers for the Indo-Gangetic Plain) are retreating; groundwater depletion in Punjab-Haryana is accelerating; the Indus, Ganga, and Brahmaputra river systems face long-term flow reductions. (4) Sea level rise: threatens coastal agriculture (salinity intrusion in Sundarbans, Gujarat coast); 7,517 km coastline is at risk. (5) Pest and disease shifts: warmer temperatures expand the range of crop pests and diseases; locust swarms (the 2020 desert locust invasion was the worst in 26 years). Agriculture contributes about 14% of India's GHG emissions: rice paddies (methane from anaerobic decomposition), enteric fermentation in cattle (methane), fertilizer use (nitrous oxide), and crop residue burning (CO2, black carbon). Adaptation strategies: drought-resistant crop varieties (ICAR has released varieties like Sahbhagi Dhan for drought-prone areas), crop diversification, System of Rice Intensification (SRI — reduces water use by 30-40%), climate-smart villages (CGIAR programme), weather-based crop insurance (PMFBY), and protected cultivation (polyhouses, shade nets).

Crop Residue Burning and Stubble Management

Crop residue burning (also called stubble burning or parali burning) is a major agricultural and environmental issue in India, particularly in Punjab, Haryana, and western UP. After the kharif rice harvest (October-November), farmers burn the rice stubble to quickly clear fields for rabi wheat sowing — the short 15-20 day window between harvest and sowing leaves little time for alternative disposal. About 20 million tonnes of crop residue is burned annually in the Indo-Gangetic Plain. Environmental impact: contributes significantly to winter air pollution in Delhi-NCR and the entire Indo-Gangetic Plain; PM2.5 levels spike to 400-600 micrograms/m3 during October-November (WHO safe limit: 15 micrograms/m3 annual mean); releases CO2, black carbon, CO, and volatile organic compounds; destroys soil organic matter and beneficial microorganisms; visibility drops to near zero, causing highway accidents. Causes: the introduction of combine harvesters (which leave tall stubble) has replaced manual harvesting; the legal ban on groundwater extraction before June 15 (to conserve groundwater) delayed paddy transplanting, which delayed harvesting, compressing the time for residue management; lack of affordable alternatives. Solutions: (1) Happy Seeder — a machine that sows wheat directly into rice stubble without burning; promoted by Punjab Agricultural University; subsidized under the Central government scheme on Crop Residue Management (2018); (2) Bio-decomposer — IARI (Pusa) developed a microbial solution that decomposes stubble within 15-20 days; sprayed on fields post-harvest; Delhi government distributed it free to NCR farmers; (3) In-situ incorporation — using mulchers, rotavators to chop and mix stubble into soil; (4) Ex-situ use — baling machines collect stubble for use as fuel in biomass power plants, cardboard manufacturing, or cattle feed; (5) Paddy Straw Supply Chain — Supreme Court and NGT have mandated state action plans; Punjab and Haryana receive Rs 1,200+ crore annually for machinery distribution. Despite efforts, stubble burning events remain significant (about 50,000+ fire events detected by satellites annually).

Agricultural Credit and Rural Indebtedness

Agricultural credit is critical for input purchase, land improvement, and marketing. Sources: (1) Institutional — commercial banks (50%+ share), cooperative banks (17%), Regional Rural Banks (RRBs, 12%); NABARD (National Bank for Agriculture and Rural Development, est. 1982) is the apex institution refinancing agricultural credit. (2) Non-institutional — moneylenders, traders, commission agents; still account for about 30% of rural credit despite decades of efforts to replace them; charge usurious interest rates (36-60% per annum). Kisan Credit Card (KCC, 1998): provides short-term credit at 7% interest (effectively 4% with prompt repayment subsidy) for crop production, maintenance, and consumption; over 7.5 crore KCCs issued; extended to fisheries and animal husbandry (2018). Priority Sector Lending: RBI mandates that 18% of Adjusted Net Bank Credit goes to agriculture. Total agricultural credit flow target for 2023-24 was Rs 20 lakh crore. Farmer indebtedness is a severe crisis: the Situation Assessment Survey (SAS) 2019 found that 50.2% of agricultural households are indebted; average outstanding debt: Rs 74,121 per household; indebtedness is highest in AP (82%), TN (77%), and Kerala (67%). Farmer suicides: NCRB data shows about 10,000+ farmer suicides annually; Maharashtra, Karnataka, MP, Telangana, and AP are worst affected; causes include crop failure, debt burden, input cost escalation, and inadequate support prices. Government responses: loan waivers (repeatedly implemented by state governments though criticized by economists as fiscally unsound), PM-KISAN income support, improved MSP coverage, and the Swaminathan Commission recommendation (MSP at C2+50%) that remains a demand of farmer unions.

Relevant Exams

UPSC CSESSC CGLSSC CHSLIBPS PORRB NTPCCDSState PSCs

Agriculture is a very high-weight topic across all government exams. UPSC Prelims tests crop-region-climate associations, revolution leaders, and government schemes. SSC/RRB exams ask about largest producing states, cropping seasons, and factual recall about crop characteristics. Current affairs questions on MSP, PM-KISAN, and International Year of Millets are common.