Improvement in Food Resources – Long Answer Questions
Medium Level (Application & Explanation)
Q1. Explain why increasing food production in India cannot rely only on increasing cultivated area. Suggest practical ways to increase production on existing land.
Answer:
India has limited arable land and much of it is already under cultivation, so simply expanding cultivated area is not a practical solution.
Increasing cultivated area often means deforestation or degrading marginal lands, leading to soil erosion and loss of biodiversity.
Practical ways to increase production on existing land include:
Improved crop varieties (high-yielding and disease-resistant) to get more grain per hectare.
Better soil management: use of organic matter, balanced fertilizers, and soil testing to maintain fertility.
Efficient irrigation like drip and sprinkler systems to save water and increase water-use efficiency.
Multiple cropping and intercropping to grow more than one crop per season.
Integrated pest management to reduce crop loss while minimizing pesticide use.
These measures increase productivity per unit area sustainably without harming the environment.
Q2. Describe how the Green Revolution increased food grain production and mention one environmental concern associated with it.
Answer:
The Green Revolution introduced high-yielding varieties (HYVs) of wheat and rice, along with greater use of chemical fertilizers, irrigation, and modern farm machinery.
Farmers adopted intensive cropping, used better seeds, and applied timely irrigation and nutrients, which together raised yields dramatically in many regions.
The result was a large increase in food-grain production, helping India move toward self-sufficiency.
An important environmental concern is overuse of chemical fertilizers and pesticides, which can cause soil degradation, reduce soil fertility, pollute water sources, and harm beneficial organisms.
To address this, sustainable practices such as integrated nutrient management and biological pest control are recommended to balance productivity with environmental health.
Q3. How does mixed farming improve the livelihood of small farmers? Give specific benefits.
Answer:
Mixed farming combines crop cultivation with animal husbandry on the same farm, providing multiple income sources and reducing risk.
Benefits include:
Diversified income: when crops fail, income from livestock (milk, eggs, meat) helps farmers survive.
Nutrient recycling: animal manure enriches soil fertility, reducing dependence on chemical fertilizers.
Year-round income: livestock products are often available continuously, while crops are seasonal.
Efficient land use: by using crop residues as fodder and animals to plough or transport, resources are used well.
Reduced market risk: selling different products lowers vulnerability to price fluctuations in a single market.
Overall, mixed farming enhances food security, raises household nutrition, and improves economic stability for small farmers.
Q4. Define food security. Explain two measures the government or society can take to improve food access for the poor.
Answer:
Food security means that all people have physical and economic access to enough safe and nutritious food for a healthy life at all times.
Two measures to improve access:
Public distribution systems (PDS): Governments can supply staple grains at subsidized prices through fair-price shops to ensure poor families can buy food. This stabilizes access during shortages.
Rural employment and income programs: Schemes like job guarantees, skill training, and price support for farmers increase income for agricultural workers and small farmers, enabling them to buy sufficient food.
Both measures should be combined with improved storage, transportation, and market regulation to reduce food loss and stabilize prices for the poor.
Q5. Explain how intercropping can increase total yield and reduce pests, giving a simple example.
Answer:
Intercropping is growing two or more crops together on the same land in the same season. This practice uses resources like sunlight, water, and nutrients more efficiently and increases total farm yield compared to monoculture.
It can reduce pests because certain crop combinations confuse or repel pests, or attract their natural enemies, limiting pest buildup. For example:
Growing maize with beans: beans fix nitrogen, improving soil fertility for maize, while the mixed canopy reduces pest spread.
Growing cereal with legume increases total protein output and improves soil nutrients.
Intercropping also reduces risk—if one crop fails due to disease or drought, the other may still give a harvest—thus improving food security and farm resilience.
High Complexity (Analytical & Scenario-Based)
Q6. A village relies on a single water source for irrigation. Repeated use of chemical fertilizers has lowered water quality and crop yields have plateaued. As an agricultural advisor, propose an integrated plan to restore productivity and ensure sustainable food production.
Answer:
First, assess water quality and soil health by testing for salts, nitrate levels, heavy metals, and pH. This identifies specific problems.
Introduce integrated nutrient management: combine organic manures (compost, green manure) with reduced chemical fertilizers based on soil tests to replenish soil structure and microbial life.
Promote water-saving irrigation like drip and sprinklers to reduce leaching of fertilizers into water and conserve water.
Encourage crop rotation and intercropping with legumes to naturally fix nitrogen and break pest cycles.
Establish buffer strips and constructed wetlands near water sources to filter runoff and improve water quality.
Train farmers in integrated pest management (IPM) to reduce pesticide use and protect beneficial insects.
Form farmer cooperatives to share resources, promote organic compost production, and access markets that reward sustainable produce.
These steps restore soil and water health, increase yields sustainably, and protect long-term food production.
Q7. Critically evaluate the White Revolution. What were its successes for India, and what long-term challenges must be addressed to maintain sustainable milk production?
Answer:
The White Revolution made India the world’s largest milk producer by improving milk collection, dairy cooperatives, and cattle management, increasing milk availability and rural incomes.
Successes included improved veterinary services, artificial insemination, better feed practices, and strong cooperative networks such as Amul, benefiting small producers.
Long-term challenges:
Feed and fodder shortage due to land competition and poor pasture management, raising costs.
Overdependence on high-yielding breeds may increase disease risk and require more inputs.
Environmental impacts like methane emissions and manure disposal need management.
Market and price fluctuations can hurt small producers without safety nets.
To sustain milk production, focus on sustainable fodder cultivation, breeding programs for disease-resistant cattle, improved waste management, and policies that ensure fair prices and veterinary care.
Q8. Design a simple integrated farming model for a smallholder with 2 hectares of land that maximises food production, income, and environmental health. Explain why each component is chosen.
Answer:
Suggested model:
Allocate 1.2 ha to crop cultivation using crop rotation: cereals (maize/wheat) and legumes (pulses) to maintain soil fertility.
Use 0.5 ha for fodder production (Napier grass, legumes) to feed animals and prevent fodder shortage.
Keep a small dairy unit (2–3 cows) and poultry (10–20 birds) for steady income and nutrition.
Include a fish pond (0.1 ha) that uses nutrient-rich run-off water, producing fish and recycling nutrients.
Establish composting and biogas from animal waste to provide organic manure and cooking fuel.
Why components:
Crop rotation and legumes improve soil nitrogen and reduce pests.
Fodder and dairy provide year-round income and nutrient recycling (manure).
Fish pond adds protein and uses water efficiently.
Biogas and compost reduce waste, cut fuel costs, and enhance soil health.
This integrated model increases diversified income, improves food security, and reduces environmental impact through nutrient recycling.
Q9. A sudden drought reduces crop yields in a region. Analyze how a combination of short-term relief and long-term measures can reduce hunger and build resilience in future droughts.
Answer:
Short-term relief:
Provide emergency food supplies and strengthen PDS to meet immediate needs.
Implement cash-for-work programs to offer income while rebuilding local assets.
Supply fodder and water for livestock to prevent livestock losses.
Long-term resilience:
Invest in water harvesting (check dams, farm ponds) and efficient irrigation (drip) to reduce drought vulnerability.
Promote drought-tolerant crop varieties and crop diversification to spread risk.
Improve soil moisture conservation techniques: mulching, conservation tillage, and agroforestry.
Strengthen market access and crop insurance so farmers recover financially.
Build community-level storage and early warning systems for better preparedness.
Combining immediate relief with long-term adaptation reduces hunger now and makes communities more resilient to future droughts.
