Global Agriculture, Food Security & Agrarian Systems

Types of Farming Systems — Global Overview

Agricultural systems vary based on climate, population density, land availability, capital, and market access. Understanding these systems helps explain regional economic geographies tested in GS1.

1. Intensive Subsistence Agriculture

Practiced in densely populated regions where yields must be maximised from small landholdings.

2. Extensive Commercial Agriculture

Practiced in regions with large land areas and low population density, aimed at large-scale commodity production.

The US Corn Belt (Iowa, Illinois, Indiana, Ohio, Nebraska) is the world's most productive corn region — the region's deep mollisol soils, warm summers, and adequate rainfall make it ideal.

3. Plantation Agriculture

A form of commercial agriculture introduced by colonial powers in tropical regions, producing single cash crops for export.

Features: Single crop, large estates, wage labour (often migrant), proximity to ports for export, high external capital.

4. Shifting Cultivation (Slash and Burn)

Practiced by tribal/forest communities in humid tropical regions. A plot is cleared, crops grown for 2–3 years, then abandoned to regenerate — community moves to a new plot.

Ecological critique: Sustainable at low population densities; becomes destructive when population pressure reduces the fallow period below 10–15 years.

5. Pastoral / Nomadic Herding

Practiced in arid, semi-arid, and mountainous regions where rainfall is insufficient for crop cultivation.

Major World Crop Belts

Wheat Belt

Wheat requires cool temperatures (12–25°C), moderate rainfall (25–75 cm), and is harvested in summer.

Rice Belt

Wet rice (paddy) needs high temperatures (>20°C), high humidity, abundant water for irrigation or monsoon, and clayey soils.

China and India together produce approximately 50% of global rice. Thailand and Vietnam are the world's largest rice exporters.

Corn (Maize) Belt

Cotton Belt

Food Security — Concepts and Measurement

Four Pillars of Food Security (FAO Definition)

The Food and Agriculture Organization (FAO) defines food security as existing "when all people, at all times, have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs and food preferences for an active and healthy life."

Global Food Security Index (GFSI)

The Global Food Security Index (GFSI) is published annually by The Economist Group (formerly by EIU/Economist Impact). It measures food security across affordability, availability, quality and safety, and natural resources and resilience.

• India ranked 68th out of 113 countries in 2022, with a score of 58.9 out of 100
• India's availability score is relatively higher (42nd rank) compared to affordability (80th rank)
• Key weaknesses: nutritional standards, dietary diversity, food safety

Global Hunger Index (GHI)

Published by Concern Worldwide and Welthungerhilfe, the GHI measures hunger using four indicators: undernourishment, child wasting, child stunting, and child mortality.

India has consistently ranked poorly — 111th out of 125 countries in the 2023 GHI. India's government has contested the methodology, arguing the undernourishment estimate relies on inadequate sample surveys and fails to account for the scale of the Public Distribution System.

World Food Programme (WFP)

• World's largest humanitarian organisation — delivers food assistance to ~100 million people annually
• Awarded the Nobel Peace Prize in 2020 for its efforts to combat hunger and promote peace in conflict zones
• Operates in ~80 countries; provides emergency food aid, school meals, nutrition programmes
• Funded primarily through voluntary contributions from governments

The Green Revolution

Origins

The Green Revolution refers to the dramatic increase in agricultural productivity in developing countries during the 1960s–1970s, achieved through the introduction of:

1. High-Yielding Variety (HYV) seeds — dwarf, semi-dwarf wheat and rice varieties that were fertiliser-responsive
2. Chemical fertilisers — especially nitrogen
3. Irrigation expansion
4. Pesticides

Norman Borlaug and Mexico

Dr. Norman Borlaug (1914–2009) is called the "Father of the Green Revolution." Working at the International Maize and Wheat Improvement Center (CIMMYT) in Mexico under the Rockefeller Foundation from the 1940s, he developed semi-dwarf, disease-resistant wheat varieties that tripled yields. He won the Nobel Peace Prize in 1970.

His wheat varieties were first adopted in Mexico (making Mexico self-sufficient in wheat by 1956), then exported to India and Pakistan in the mid-1960s.

India and the Green Revolution

• India imported Mexican wheat seeds in 1965 during the Drought years, facilitated by M.S. Swaminathan and the Indian Agricultural Research Institute
• Punjab, Haryana, and western Uttar Pradesh were the epicentre — canal irrigation already in place
• Wheat production in India grew from ~12 million tonnes (1965) to ~20 million tonnes (1971)
• Later extended to rice (IR-8 variety from IRRI, Philippines) — suited Bengal and Southeast Asian conditions

Achievements and Limitations

India's Global Agricultural Role

India is the world's 2nd largest agricultural producer (after China) and a significant exporter:

India's agricultural exports crossed USD 53 billion in FY 2022–23 (verify latest figure), making it one of the world's major agricultural exporters despite high domestic demand.

WTO and Agriculture — India's Challenges

Agreement on Agriculture (AoA)

The WTO's Agreement on Agriculture (AoA), concluded in 1995 under the Uruguay Round, aims to reform international trade in agriculture by:

1. Market access — reducing tariffs
2. Domestic support — reducing subsidies distorting trade (classified into Amber Box, Blue Box, Green Box)
3. Export subsidies — elimination

Amber Box: Trade-distorting domestic support (e.g., price supports, input subsidies above certain levels) — must be reduced Green Box: Minimally distorting support (e.g., direct income transfers decoupled from production, public stockholding at market prices) — permitted without limits Blue Box: Production-limiting programme payments — partially exempt

India's Public Stockholding Problem

India procures grains (wheat, rice) at Minimum Support Price (MSP) to maintain buffer stocks for the PDS. Under AoA methodology, the difference between the administered price and an external reference price (fixed at 1986–88 levels) is counted as trade-distorting support — creating an artificial cap problem as Indian MSP rises while the 1986–88 reference stays fixed.

Peace Clause (Bali 2013)

At the 9th WTO Ministerial Conference (MC9, Bali, 2013), a Peace Clause was agreed — WTO members will not challenge developing countries' public stockholding programmes in dispute settlement even if they exceed prescribed caps, provided these programmes existed before 2013. India has invoked this to protect its PDS-MSP system.

India's demand: Expand the Peace Clause to cover new programmes and provide a permanent solution to the public stockholding issue — this remains unresolved at successive Ministerial Conferences (MC12 2022, MC13 2024).

Food Sovereignty vs Food Security

Climate Change and Agriculture

• Heat stress on wheat: Yields decline significantly when temperatures exceed 35°C during grain-filling stage; projected to reduce South Asian wheat yields by 8–10% by 2050
• Erratic rainfall: Delayed or deficient monsoon directly affects rice transplanting dates, reducing yields
• Shifting crop calendars: Farmers already adapting sowing dates; traditional knowledge being disrupted
• CO₂ fertilisation effect: Higher CO₂ may boost photosynthesis — but nutritional quality (protein, zinc, iron) of crops declines
• Increased pest pressure: Warming expands the range of crop pests and diseases

Previous Year Questions (PYQs)

Prelims

1. (UPSC CSE Prelims 2023): "Consider the following countries: Brazil, China, India, USA. Which of them are among the top three rice exporters in the world?"

   • India, Vietnam, Thailand are top rice exporters. India is #1 exporter.

2. (UPSC CSE Prelims 2019): "The 'Peace Clause' in WTO context refers to:"

   • Allowing developing countries to continue public stockholding programmes without WTO challenge.

3. (UPSC CSE Prelims 2017): "With reference to the World Food Programme: (1) It is headquartered in Rome. (2) It is the world's largest humanitarian agency dealing with food."

   • Both correct.

4. (UPSC CSE Prelims 2015): "Norman Borlaug, who is credited with saving millions of lives, worked in the area of:"

   • Development of High Yielding Variety wheat — Green Revolution.

Mains

1. (UPSC CSE Mains GS1 2023): "Explain how India's agricultural geography has been transformed since independence. What role has the Green Revolution played in this transformation?" (250 words)

2. (UPSC CSE Mains GS2 2019): "What are the obstacles in India's quest for a permanent solution to the public stockholding issue at the WTO? How can these be overcome?" (250 words)

3. (UPSC CSE Mains GS1 2017): "Distinguish between intensive subsistence agriculture and extensive commercial farming. In what ways does climate influence the distribution of major crop belts?" (250 words)

4. (UPSC CSE Mains GS3 2020): "How does climate change threaten global food security? Suggest measures that India should adopt to climate-proof its agriculture." (250 words)

Exam Strategy

For Prelims:

• India's agricultural global ranks: Largest milk producer, largest rice exporter, largest spice exporter, 2nd largest sugarcane producer
• Green Revolution: Norman Borlaug → Nobel Peace Prize 1970, not Nobel in Agriculture
• WFP: Nobel Peace Prize 2020; HQ Rome
• GFSI 2022: India ranked 68th (know this is the most recent verified figure)
• WTO Peace Clause: Bali 2013, covers programmes existing before December 2013 only

For Mains (GS1 — Geography/Agriculture):

• Always distinguish farming type from farming system — type = wheat vs rice; system = intensive vs extensive
• Green Revolution: Cover achievements AND limits — Punjab's water table crisis, nutritional gap, inter-regional inequality
• WTO link (GS2 angle): AoA + Public stockholding + Peace Clause — a perennial Mains topic
• Food security vs food sovereignty: use La Vía Campesina for a global perspective angle
• Climate-agriculture nexus: heat stress on wheat, shifting phenology, CO₂ fertilisation paradox (higher yields but lower nutrition)

Mnemonic for farming types: IS EP SN P = Intensive Subsistence, Extensive commercial, Plantation, Shifting cultivation, Nomadic/Pastoral