Deficit Monsoon Watch: How Farmers Can Prepare for the 2026 Rabi Season

Introduction

The rabi crop does not begin when the seed is placed in the soil.

It begins with a decision about how much moisture will remain in the field after the monsoon, how much irrigation water will actually be available, which crop can realistically be supported, and when sowing should take place.

This becomes especially important when rainfall is below normal or unevenly distributed.

For 2026, the India Meteorological Department forecast the southwest monsoon season rainfall over India as a whole at 90% of the Long Period Average, with below-normal rainfall most likely. The May forecast also indicated below-normal rainfall over Central and South Peninsular India and Northwest India.

The message for farmers is not to panic.

It is to prepare early.

Why a Deficit Monsoon Can Change the Rabi Plan

Rabi agriculture in many parts of India depends partly on moisture accumulated during the kharif season and partly on irrigation.

When rainfall is inadequate, the amount of water stored in the soil can become a critical production constraint.

Soil moisture determines more than sowing

Residual soil moisture can influence:

• Whether land can be sown on time
• Which crops can be established successfully
• Which varieties are appropriate
• Whether pre-sowing irrigation is required
• How much supplemental irrigation may be needed
• Whether the planned crop area should be reduced or diversified

This is why a farmer should assess the field before finalising the rabi crop plan.

Rainfall quantity is not the whole story

Two farms can receive similar seasonal rainfall and still have very different moisture conditions.

Soil type, depth, drainage, previous crop, rainfall distribution, evaporation and water-conservation practices all influence how much water remains available to the next crop.

A single heavy rainfall event cannot always compensate for long dry spells.

What the 2026 Monsoon Outlook Means for Farmers

IMD's updated May 2026 forecast projected southwest monsoon rainfall at 90% of LPA for the country as a whole, with a model error of ±4%.

It also projected below-normal rainfall over several broad regions, including Central and South Peninsular India and Northwest India.

This is a seasonal outlook, not a field-level prediction.

Actual farm conditions must therefore be assessed using local rainfall records, soil moisture, irrigation availability and weather advisories.

Deficit does not mean every farm will face the same risk

Rainfall can vary significantly between districts and even within districts.

A farmer should therefore avoid making a crop decision solely from a national monsoon headline.

The better approach is:

National outlook → State rainfall situation → District rainfall → Field moisture → Irrigation availability → Crop decision

The First Priority: Measure and Protect Residual Soil Moisture

When water is limited, the moisture already present in the soil becomes an asset.

ICAR advisories emphasise soil-moisture conservation and the use of residual moisture for rabi planning in appropriate farming systems.

Avoid unnecessary moisture loss

Depending on soil, crop and local recommendations, farmers can consider practices such as:

• Timely field operations
• Appropriate residue management
• Mulching where suitable
• Maintaining field bunds
• Reducing unnecessary soil disturbance
• Improving rainwater infiltration
• Preventing avoidable runoff
• Conserving stored soil moisture after kharif harvest

The correct practice depends on soil type, crop system and local conditions.

Deep soils can offer an advantage

Deep soils with greater water-holding capacity can store more moisture than shallow soils, although the amount actually available to plants depends on soil characteristics and drainage.

This makes field-specific soil assessment more useful than relying only on rainfall totals.

Rabi Crop Selection Should Follow Water Availability

One of the most expensive mistakes during a moisture-deficit season is choosing a crop plan without first considering the available water.

Match the crop to the moisture budget

Before sowing, estimate:

• Available residual soil moisture
• Expected rainfall during the crop period
• Irrigation sources
• Number of reliable irrigations available
• Water requirement of the selected crop
• Soil water-holding capacity
• Expected sowing window

Then select the crop and variety accordingly.

Consider shorter-duration options where locally recommended

ICAR contingency planning has repeatedly used crop and variety adjustment as a response to rainfall uncertainty.

In moisture-limited situations, suitable short-duration varieties or alternate crops may allow farmers to better match crop duration with available water.

However, variety selection must always follow local agricultural university, KVK or agriculture-department recommendations.

There is no universal "drought variety" suitable for every district.

Protect the Sowing Window

Delayed sowing can create another layer of risk.

A farmer waiting indefinitely for rainfall may lose valuable time, while sowing too early into inadequate moisture can result in poor establishment.

Use a decision trigger instead of guesswork

A practical approach is to establish a local sowing decision based on:

1. Field moisture condition
2. Short-term rainfall forecast
3. Crop-specific sowing window
4. Soil temperature where relevant
5. Irrigation availability
6. Recommended variety duration

The objective is not simply to sow early.

The objective is to establish the crop at the right time with enough moisture to support emergence and early growth.

Irrigation Water Should Be Budgeted Before Sowing

A water-deficit season requires irrigation planning before the crop enters the field.

Calculate available water, not expected water

Farmers should assess actual availability from:

• Wells
• Tube wells
• Farm ponds
• Canals
• Community irrigation systems
• Other reliable sources

Do not base a crop plan on an irrigation source that is already uncertain.

Prioritise critical crop stages

When irrigation is limited, water allocation should follow crop-specific recommendations and critical growth stages.

The goal is to obtain the maximum possible production from each unit of available water rather than applying water simply according to a fixed calendar.

Fertiliser Planning Must Also Change With Moisture Risk

Water and nutrients work together.

Applying inputs without adequate moisture can reduce the effectiveness of the investment and may increase the risk of nutrient losses or poor crop response.

Do not confuse more input with more yield

In a moisture-limited environment, simply increasing fertiliser use is not a substitute for adequate water.

Farmers should follow soil-test-based and crop-specific nutrient recommendations and coordinate nutrient application with moisture availability and agronomic guidance.

ICAR's rabi advisories specifically recommend soil testing after kharif harvest to support nutrient-management planning.

Crop Contingency Planning Is a Strength, Not a Failure

A contingency plan does not mean expecting the crop to fail.

It means deciding in advance what to do if conditions change.

ICAR-CRIDA maintains district-level crop contingency plans covering situations such as delayed monsoon, drought, rainfed conditions and different stages of crop stress.

Prepare three crop scenarios

Farmers can think in terms of:

Scenario 1: Adequate moisture

Proceed with the planned rabi crop if local conditions and recommendations support it.

Scenario 2: Moderate moisture deficit

Consider suitable crop or variety adjustments, reduced water-intensive area and stronger moisture-conservation measures.

Scenario 3: Severe moisture deficit

Consider alternate crops, delayed or reduced sowing, fallowing where economically justified, or other locally recommended contingency options.

The specific choice should be based on the district contingency plan and advice from the local agriculture department or KVK.

Reduce Input Risk Before Spending Capital

The most important financial lesson from a deficit season is simple:

Do not commit the full input budget before understanding the water situation.

Protect the capital already available

Before purchasing large quantities of seed, fertiliser and other inputs, farmers should estimate the realistic crop area that available moisture and irrigation can support.

This can prevent a situation where expensive inputs are purchased for acreage that cannot be adequately cultivated.

Keep an input priority list

When resources are constrained, prioritise inputs that are essential for establishing and maintaining the selected crop.

A crop plan built around available resources is generally safer than trying to maintain the original plan regardless of changing conditions.

Monitor Weather, Not Just Seasonal Forecasts

A seasonal forecast provides a broad outlook.

Farm decisions often require shorter-term information.

IMD provides short- and medium-range forecasts, extended-range information and rainfall monitoring products. Farmers can also use local agrometeorological advisories and KVK guidance.

Watch for both dry spells and sudden heavy rainfall

A deficit monsoon does not necessarily mean rainfall will be evenly absent.

A season can combine long dry spells with intense rainfall events.

Therefore, preparedness should cover both:

• Moisture conservation during dry spells
• Runoff and drainage management during intense rainfall

This is particularly important because rainfall distribution can matter as much as seasonal totals for crop establishment and soil-water storage.

A Practical Rabi Preparedness Checklist

Before finalising the rabi crop plan, ask:

Field Assessment

• How much moisture remains in the soil?
• What is the soil type and depth?
• Was the kharif crop harvested early or late?
• Is the field retaining or losing water rapidly?

Water Assessment

• How much irrigation water is actually available?
• How many dependable irrigations can be provided?
• Is the water source shared or uncertain?
• Can farm-level water conservation improve availability?

Crop Assessment

• Which crops fit the available moisture?
• Which locally recommended varieties match the sowing window?
• Is a shorter-duration option available and suitable?
• What is the crop's expected irrigation requirement?

Financial Assessment

• How much seed should actually be purchased?
• How much fertiliser is justified by the soil and crop plan?
• What happens financially if irrigation availability falls further?
• Is an alternate crop plan ready?

The Biggest Mistake Is Waiting Until the Field Is Dry

Preparedness has the highest value before a crisis becomes visible.

Once soil moisture has fallen severely, irrigation options may already be limited, sowing windows may have narrowed and input decisions may become more expensive.

Early planning gives farmers more choices.

Moisture monitoring should become a routine decision tool

Farmers can combine:

• Field observation
• Soil moisture assessment
• Local rainfall records
• Weather forecasts
• Crop advisories
• Irrigation availability
• Crop-specific recommendations

This creates a more reliable decision system than relying on rainfall expectations alone.

What Farmers Should Do Now

As the kharif season moves toward harvest in many areas, farmers should begin preparing the rabi decision rather than waiting for the sowing date.

Start with the field.

Assess the soil.

Check the water.

Review the local weather outlook.

Then choose the crop.

And finally, purchase inputs according to the realistic production plan.

This sequence can reduce unnecessary expenditure and improve the chances of successful crop establishment.

Conclusion

A deficit or uneven monsoon does not automatically mean a failed rabi season.

It means the rabi strategy needs to be more deliberate.

Residual soil moisture, crop choice, variety duration, sowing timing and irrigation availability must be considered together. ICAR's contingency-planning framework reinforces the importance of conserving soil and water resources, adapting crop choices and preparing for rainfall uncertainty.

The farmer who measures moisture before sowing is not reacting to drought.

The farmer is managing risk.

The goal should be simple: use every unit of available water intelligently, protect every unit of input capital and choose a rabi crop that matches the resources the farm can realistically provide.

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FAQ

What does a deficit monsoon mean for rabi crops?

A rainfall-deficit monsoon can reduce residual soil moisture and increase dependence on irrigation, potentially affecting crop choice, sowing timing and production risk. The impact varies by location, soil, rainfall distribution and irrigation availability.

Is the 2026 Indian monsoon expected to be deficient?

IMD's May 2026 updated forecast projected 2026 southwest monsoon rainfall at 90% of LPA for India as a whole, indicating below-normal rainfall was most likely. A seasonal forecast should not be treated as a field-level prediction.

Why is soil moisture important before rabi sowing?

Residual soil moisture can help establish rabi crops, particularly in rainfed and moisture-conserving systems. Its availability influences sowing feasibility, crop selection and irrigation requirements.

Should farmers delay rabi sowing if rainfall is low?

Not automatically. The decision should depend on field moisture, crop-specific sowing windows, short-term weather forecasts, irrigation availability and local agricultural recommendations.

Should farmers choose short-duration rabi varieties during a moisture deficit?

Short-duration varieties can be useful in some moisture-stressed situations, but suitability is location- and crop-specific. Farmers should use varieties recommended by their local agriculture department, KVK or agricultural university.

How can farmers conserve moisture for rabi?

Depending on the farming system, practices can include appropriate residue management, mulching, field bunding, reducing unnecessary soil disturbance, improving infiltration and conserving rainfall received during the kharif-to-rabi transition.

Where can farmers find crop contingency plans?

ICAR-CRIDA provides district-level crop contingency planning resources covering delayed monsoon, drought, rainfed conditions and other weather-related scenarios. Local KVKs and agriculture departments can also provide location-specific recommendations.

Why should farmers plan irrigation before buying inputs?

Because the amount of dependable water available can determine how much acreage and which crops can realistically be supported. Matching input purchases to the available water budget can reduce avoidable financial exposure.

Explore the Agriculture Intelligence Platform of Bharat - AGRIBOZ

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Prepare smarter for the rabi season with agriculture intelligence, expert knowledge, workshops, opportunities and practical farm insights through the AGRIBOZ ecosystem.

1. What does a deficit monsoon mean for rabi crops?

A rainfall-deficit monsoon can reduce residual soil moisture and increase dependence on irrigation, potentially affecting crop choice, sowing timing and production risk.

2. Is the 2026 Indian monsoon expected to be deficient?

IMD's May 2026 updated forecast projected 2026 southwest monsoon rainfall at 90% of LPA for India as a whole, indicating below-normal rainfall was most likely. A seasonal forecast should not be treated as a field-level prediction.

3. Why is soil moisture important before rabi sowing?

Residual soil moisture can help establish rabi crops, particularly in rainfed and moisture-conserving systems. Its availability influences sowing feasibility, crop selection and irrigation requirements.

4. Should farmers delay rabi sowing if rainfall is low?

Not automatically. The decision should depend on field moisture, crop-specific sowing windows, short-term weather forecasts, irrigation availability and local agricultural recommendations.

5. Should farmers choose short-duration rabi varieties during a moisture deficit?

Short-duration varieties can be useful in some moisture-stressed situations, but suitability is location- and crop-specific. Farmers should use varieties recommended by their local agriculture department, KVK or agricultural university.

6. How can farmers conserve moisture for rabi?

Depending on the farming system, practices can include appropriate residue management, mulching, field bunding, reducing unnecessary soil disturbance, improving infiltration and conserving rainfall received during the kharif-to-rabi transition.

7. Where can farmers find crop contingency plans?

ICAR-CRIDA provides district-level crop contingency planning resources covering delayed monsoon, drought, rainfed conditions and other weather-related scenarios. Local KVKs and agriculture departments can also provide location-specific recommendations.

8. Why should farmers plan irrigation before buying inputs?

Because dependable water availability can determine how much acreage and which crops can realistically be supported. Matching input purchases to the available water budget can reduce avoidable financial exposure.