Climate Change and Water Stress: 7 Ways Farmers Can Choose Crops More Carefully

Climate change is making water availability less predictable for farmers. At the same time, some agricultural regions are using more groundwater than their long-term availability can support. Choosing crops according to local water conditions can help farmers reduce irrigation pressure while protecting farm income.

Why crop choice matters more now

A crop may perform well economically but place heavy demands on local water resources. ICAR has found a mismatch between existing cropping patterns and groundwater availability in several water-stressed states, including Punjab, Haryana, Karnataka, Maharashtra, Telangana, Andhra Pradesh and Tamil Nadu.

Climate change adds another layer of uncertainty. Higher temperatures can increase crop water requirements, while irregular rainfall can make rainfall-dependent production less reliable. Farmers therefore need to consider not only expected market prices, but also available water, soil conditions and the likely weather during the crop season.

1. Check local water availability first

Before selecting a crop, farmers should assess how much irrigation water is realistically available. A borewell that provides sufficient water during one season may not support the same cropping intensity after a prolonged dry period.

Farmers can seek information from local agriculture departments, groundwater agencies and Krishi Vigyan Kendras. Where groundwater levels are declining, reducing water-intensive crops or lowering the number of irrigated crops can help avoid greater dependence on pumping.

2. Compare crops by water requirement

Different crops require different amounts of water and have different sensitivities to heat and moisture stress. Farmers should compare the expected water requirement of possible crops before making their seasonal plan.

This does not mean replacing one crop everywhere with another. Crop choice should reflect local rainfall, soil, irrigation access, market demand and farming experience. ICAR’s cropping-system work specifically considers agro-climatic conditions, resource availability and market opportunities when identifying alternatives.

3. Consider crop diversification

Growing more than one crop can reduce dependence on a single crop and spread weather-related risk. Farmers can consider combinations that use available water at different times or have different responses to heat and rainfall.

Diversification should be planned around the local market. A crop that uses less water but has no dependable buyer may not improve farm income. Farmers should check nearby markets, procurement arrangements, storage facilities and processing demand before changing an established cropping pattern.

4. Use shorter-duration varieties where suitable

Shorter-duration crop varieties can sometimes help farmers complete a crop within a narrower water-availability window. This can be useful where rainfall becomes more uncertain or irrigation water is limited.

Farmers should select varieties recommended for their region rather than choosing varieties only because they mature quickly. ICAR has reported that climate-resilient varieties are being developed and promoted through India’s agricultural research system to help farmers manage changing weather conditions.

5. Match sowing dates with weather

Sowing at the right time can help crops use available rainfall more effectively and avoid some periods of extreme heat. Farmers should follow local advisories rather than relying only on traditional sowing dates.

Krishi Vigyan Kendras and state agricultural universities issue crop and weather advisories for local conditions. These can help farmers decide when to sow, irrigate, apply nutrients or protect crops when forecasts indicate heat, heavy rain or dry conditions.

6. Improve irrigation efficiency

Changing the crop alone cannot solve water stress. Farmers can also reduce irrigation losses through methods such as drip and sprinkler systems where they are suitable for the crop and farm.

The Per Drop More Crop component of the government’s micro-irrigation programme supports the use of drip and sprinkler systems. Farmers should compare the investment, subsidy eligibility, maintenance requirements and expected water savings before choosing a system.

7. Use contingency plans before weather turns extreme

Farmers do not have to wait for a drought or delayed rainfall before changing their plan. District-level agricultural contingency plans provide recommendations for managing weather-related disruptions, including delayed monsoon, drought and other weather abnormalities.

Under NICRA, ICAR has assessed climate risks across 651 predominantly agricultural districts. The assessment identified 310 districts as vulnerable, including 109 classified as very highly vulnerable and 201 as highly vulnerable. District contingency plans have been prepared for these areas.

Water stress is not the same everywhere

India does not have one crop-water problem. Conditions differ between regions, soils and irrigation systems. A crop considered water-intensive in one region may have a different production profile elsewhere because of rainfall, irrigation infrastructure and farming practices.

ICAR’s analysis found that the mismatch between cropping patterns and groundwater availability is particularly important in several states with depleted groundwater resources. This makes location-specific crop planning more useful than a single national recommendation.

Farmers should calculate income, not just yield

A lower-water crop is not automatically a better crop. Farmers need to compare expected yield, selling price, input costs, irrigation expenditure and market access.

For example, reducing irrigation may lower production costs, but a major shift in crops could also affect household income if the alternative has weak demand. A gradual change, tested on part of the farm first, can reduce the financial risk of changing the entire cropping pattern.

Farmers planning a major crop change should consult the nearest KVK, agriculture department or agricultural university. Local experts can provide information on varieties, sowing windows, irrigation schedules and crops suited to local soils and rainfall.

ICAR’s recent NICRA work has also emphasised location-specific climate-resilience action plans. The approach recognises that climate risks and suitable responses differ between locations, making local planning important for farmers.

Climate change is making crop planning more closely linked to water availability. Farmers can reduce risk by checking local water resources, comparing crop requirements, diversifying where markets allow, using suitable varieties and improving irrigation. The best choice will differ by region, so farmers should combine local climate information with agricultural and market advice.