How to Grow Rajma (Kidney Beans): Best Time, Varieties, Seed Rate & Yield

How to Grow Kidney Beans (Rajma)?

Kidney bean farming is done in many plain and hilly areas of India. Kidney bean is generally known as Phaseolus vulgaris L. Its growing season is not the same throughout India. In hilly areas, it is an important Kharif crop, while in some plain areas, it is also grown during the Rabi season according to local climate, irrigation, and variety.

Therefore, in kidney bean farming, one fixed sowing date, seed rate, fertilizer quantity, or yield should not be considered a general rule for the whole of India. The right recommendation can change according to the region, variety, soil, irrigation, and recommendation of the local Agriculture Department/Agricultural University.

This guide provides information about the right time for kidney bean farming, suitable land, selection of varieties, seed quantity, sowing, fertilizer and nutrient management, irrigation, weed control, disease and pest management, harvesting, storage, and yield.

🌱 1. Kidney Bean Farming at a Glance

Important: This table intentionally does not give one fixed seed rate, number of irrigations, or yield for the whole of India because kidney bean recommendations vary according to region and variety.

🌾 2. Where is Kidney Bean Farming Done?

Kidney beans are grown in different agro-climatic regions of India. They have an important place especially in Himalayan and hilly areas. In an ICAR demonstration in Uttarakhand, kidney beans were also grown in the valley region during the spring season, while ICAR-IIPR also describes Rajmash as traditionally grown as a Kharif crop in the Himalayan foothills.

Kidney beans are also grown in plain areas, but the sowing time and variety should be selected according to local conditions.

📅 3. When Should Kidney Beans Be Grown?

This is one of the most important questions related to kidney bean farming.

3.1. In Hilly Areas

In hilly areas, kidney beans are generally grown as a Kharif-season crop. The sowing time is decided based on local altitude, temperature, rainfall, and regional agricultural recommendations.

Therefore, farmers in hilly areas should sow according to the recommendation of their local Agriculture Department, Agricultural University, or KVK.

3.2. In Plain Areas

Kidney beans are grown as a Rabi crop in some plain areas. In such conditions, the sowing time depends on local temperature, irrigation, and variety.

It is not correct to consider October-November as a fixed kidney bean sowing time for the whole of India.

3.3. The Right Rule

Decide the sowing time of kidney beans according to the variety recommended for your area and the recommendation of the local Agricultural University/Agriculture Department.

🌤️ 4. What Climate is Suitable for Kidney Beans?

Kidney beans do not prefer excessive waterlogging and extremely unfavorable weather conditions. Temperature, moisture, and weather affect crop growth and production.

For good production:

• Water should not remain stagnant in the field.
• Proper drainage is necessary in areas receiving very high rainfall.
• Sowing time should be according to the local weather.
• Selection of a suitable variety is important under very hot or extremely cold conditions.
• Manage water properly in irrigated areas.

🌱 5. Which Soil is Good for Kidney Bean Farming?

Soil with good drainage is better for kidney beans, where water does not remain around the roots for a long time.

Kidney beans can be grown in well-drained loamy or other suitable soils. While making the final selection of the field, consider soil structure, drainage, and fertility.

Why is Soil Testing Important?

Before deciding the quantity of manure and fertilizer for kidney beans, it is better to get the soil tested.

Soil testing can show:

• Nitrogen status
• Phosphorus status
• Potash status
• Sulphur and other nutrient status
• Acidic/alkaline reaction of the soil

Without soil testing, it is not appropriate to apply the same NPK quantity to the entire field.

🚜 6. Field Preparation for Kidney Bean Farming

Prepare the field properly before sowing.

General Process

1. Remove residues of the previous crop and weeds.
2. Do ploughing as required.
3. Bring the soil to a fine and level condition.
4. Keep proper drainage arrangements in the field.
5. Make sure there is enough moisture in the soil at the time of sowing.

Instead of doing too much ploughing, it is more appropriate to do the required tillage according to the local soil and farming system.

🌱 7. Improved Varieties of Kidney Bean

There is no single “best variety” of kidney bean for the whole of India. Variety selection should be based on the recommended region.

According to the available information from ICAR-Indian Institute of Pulses Research, some important kidney bean varieties are as follows:

*This is the potential yield reported by the concerned institution. Actual yield in a farmer’s field can be lower or higher than this.

Important

Farmers should not buy seeds only by looking at the variety name. While buying seeds:

• Choose a variety recommended for your area.
• Use certified/high-quality seeds.
• Check the seed lot and label.
• Check the latest recommendation from the local Agriculture Department or Agricultural University.

🌾 8. How Much Seed Rate Should Be Used for Kidney Beans?

In kidney beans, one seed rate is not correct for the whole of India.

The quantity of seed depends on these factors:

• Variety
• Seed size
• Germination percentage
• Sowing method
• Row spacing
• Desired number of plants
• Regional agricultural recommendation

For example, in a kidney bean demonstration in the Dehradun region by ICAR, 80 kg seed per hectare was used and a spacing of 45 × 10 cm was maintained.

Therefore, it is not correct to state 48–56 kg per acre as a fixed seed rate for the whole of India.

Right Method

Use the recommended seed rate for your area and selected variety, and consider seed quality and germination percentage.

📏 9. Row and Plant Spacing in Kidney Beans

Row spacing can also change according to the variety and local production technology.

In the ICAR Dehradun demonstration, 45 × 10 cm spacing was used.

This makes it clear that spacing should also not be considered as one fixed number for the whole of India.

What Should Farmers Do?

• Check the recommendation for the selected variety.
• Take advice from a local agricultural expert.
• Avoid very dense sowing.
• Maintain enough air and light movement in the field.

🧪 10. Seed Treatment of Kidney Beans

The purpose of seed treatment is to protect seeds and the crop during the early stage from diseases and to help healthy crop establishment.

However, it is not appropriate to consider one particular chemical and quantity as a universal treatment for all kidney bean seeds.

While treating seeds:

• Use only currently approved products or products whose label allows their use.
• Check the product label for permission to use it on kidney beans/beans.
• For biological seed treatment, follow the recommendation of an Agricultural University or KVK.
• Do not mix different products without knowing their compatibility.

In one ICAR kidney bean demonstration, Trichoderma harzianum and Pseudomonas fluorescens were used along with PSB. This does not mean that the same combination is mandatory in every region and under every condition.

🌱 11. How to Sow Kidney Beans?

There should be proper moisture in the field at the time of sowing.

11.1. General Sowing Process

1. Choose good-quality seeds.
2. Do the recommended seed treatment according to the region.
3. Make sure there is enough moisture in the field.
4. Maintain the recommended row spacing.
5. Sow the seeds at the proper depth.
6. Do not allow water to collect in the field after sowing.

11.2. At What Depth Should Seeds Be Sown?

Do not consider 8–10 cm as a universal sowing depth for kidney beans.

Keep the sowing depth according to soil texture, moisture, seed size, and local technical recommendation.

Very deep sowing can affect germination and early establishment of the plant.

🧪 12. Manure and Fertilizer Management in Kidney Beans

The nutrient requirement of kidney beans changes according to soil, variety, irrigation, and production target.

Therefore:

Fertilizer management based on soil testing is the best method.

An important fact regarding nitrogen requirement in kidney beans is that this crop can show less effective nodulation compared to some other pulse crops. According to ICAR-IIPR, nitrogen may be required for better growth and yield in commercial Rajmash production.

In one study/publication by ICAR-IIPR, a nitrogen requirement of up to 120 kg N/ha has been mentioned under irrigated conditions. However, this should not be considered a compulsory quantity for every field.

Why?

Because:

• Soil fertility is different.
• Irrigation facilities are different.
• Varieties are different.
• Production targets are different.
• The effect of the previous crop is different.

Therefore

Decide the quantity of N, P, K, S and micronutrients based on soil testing and local recommendations.

💧 13. How to Irrigate Kidney Beans?

The number of irrigations in kidney beans is not fixed for the whole of India.

It depends on:

• Type of soil
• Rainfall
• Temperature
• Crop stage
• Irrigation facility
• Drainage

Pay Special Attention

Both shortage of water and excessive water accumulation can be harmful to the crop.

Especially:

• Do not allow waterlogging in the field.
• Do not allow moisture shortage during important stages such as flowering and pod formation.
• Light soils may require irrigation earlier.
• The irrigation interval may be different in heavy soils.

Important

Do not follow a fixed rule such as “kidney beans should always receive only 2–3 irrigations.”

Irrigate according to soil moisture and weather conditions.

🌿 14. Weed Control in Kidney Beans

During the early stage of kidney beans, weeds can compete with the crop for water, nutrients, light, and space.

Better Management

• Do timely weeding and hoeing.
• Keep the field weed-free during the early stage.
• Use hand weeding or mechanical methods as required.
• Use chemical herbicides only according to the current label and local agricultural recommendations.

Do not apply the quantity of any herbicide only on the basis of an internet article.

🐛 15. Major Diseases and Pests in Kidney Beans

Different diseases and pests can cause problems in kidney beans in different regions.

15.1. Major Diseases

The following types of diseases can be seen in kidney beans:

• Bean Common Mosaic Virus (BCMV)
• Anthracnose
• Root and stem-related diseases
• Leaf-related fungal diseases
• Other local diseases

ICAR-IIPR is working on the development of varieties resistant/tolerant to BCMV and other diseases in Rajmash.

15.2. Disease Management

1. Use Healthy Seeds

Do not reuse infected seeds saved from a diseased field.

2. Choose Resistant/Tolerant Varieties

Where available, select a locally recommended disease-resistant/tolerant variety.

3. Monitor the Field

If the leaves show:

• Unusual mosaic
• Yellowing
• Deformation
• Spots
• Blight
• Wilting of plants

Get the problem properly identified.

4. Management of Insect Vectors in Viral Diseases

Some viral diseases can spread through insects. Therefore, do not decide on any pesticide only by looking at an infected plant.

🐛 16. Pest Management in Kidney Beans

Different pests can cause problems in kidney beans depending on the region, such as:

• Aphids
• Whiteflies
• Pod-related pests
• Leaf-eating insects
• Other local pests

Adopt Integrated Pest Management

1. Monitor the field regularly.
2. Identify infestation at the early stage.
3. Separate highly infected plants.
4. Keep weeds under control in the field.
5. If required, use biological/mechanical methods according to local recommendations.
6. Use chemical pesticides only according to the currently approved label claim, correct formulation, and recommendation of the local Agriculture Department.

Important: Do not directly use any pesticide in the field by looking at an old internet dose. The pesticide registration, formulation, crop-pest combination, dose, and waiting period can change.

⏱️ 17. In How Many Days is the Kidney Bean Crop Ready?

The duration of the kidney bean crop changes according to the variety and region.

For example, in an ICAR demonstration in the Dehradun region, kidney beans matured in about 90–115 days, while the Chakrata local kidney bean variety used in the same demonstration had a maturity period of about 110–120 days.

The duration of some kidney bean varieties from ICAR-IIPR is also different:

• PDR 14: 125–130 days
• IPR 96-4: 139–145 days
• IPR 98-5: 122–125 days
• IPR 98-3-1: 120–125 days

Therefore, it would be wrong to say that “kidney beans always become ready in 90 days.”

🌾 18. When Should Kidney Beans Be Harvested?

Harvest when:

• Most of the pods have matured.
• The colour of the pods and condition of the plant show maturity.
• The beans have developed properly.

Leaving the crop in the field for too long can increase the risk of pod splitting and seed shedding in some varieties.

After harvesting, dry the beans properly and store them at a safe moisture level.

🏠 19. How to Store Kidney Beans?

Before storage:

• Dry the beans properly.
• Separate broken and diseased beans.
• Use a clean and dry place.
• Protect the beans from moisture and pests.
• Keep the storage container/warehouse clean.

Check separately the quality of beans kept for seed and keep healthy, good-quality seeds for use in the next season.

📊 20. How Much is the Yield of Kidney Beans?

It is not correct to give one fixed yield figure for the whole of India.

Yield depends on these factors:

• Variety
• Sowing time
• Soil
• Irrigation
• Nutrient management
• Disease and pest control
• Weather
• Number of plants
• Region

In one demonstration in the Dehradun region by ICAR, 12–20 quintal/hectare yield potential was reported.

For different varieties from ICAR-IIPR, potential yield has been reported at around 20–25 quintal/hectare.

Do not consider potential yield as guaranteed yield in a farmer’s field.

💰 21. Cost and Profit in Kidney Bean Farming

It is not appropriate to give a fixed national cost or profit for kidney bean farming.

The actual cost for a farmer depends on these factors:

• Seed price
• Land preparation
• Labour
• Irrigation
• Fertilizers
• Pest and disease control
• Machinery
• Land rent
• Harvesting and threshing
• Transportation
• Local mandi/market

Similarly, the selling price can also change according to:

• State
• Mandi
• Variety
• Colour and size of the beans
• Quality
• Weather
• Market demand

Right Formula to Calculate Profit

Total Sales = Total Production × Actual Selling Price

Net Profit = Total Sales − Total Production Cost

Example

Suppose a farmer:

• Produced 8 quintals
• Sold at an average price of ₹80/kg

Then:

8 quintals = 800 kg

Total Sales:

800 × ₹80 = ₹64,000

If the actual total cost is ₹30,000:

Net Profit = ₹64,000 − ₹30,000 = ₹34,000

This is only a calculation example, and it is not a claim about the actual market price or fixed profit for any region.

🌱 22. 10 Important Rules for Scientific Kidney Bean Farming

1. Choose a variety recommended for your area.
2. Buy certified and healthy seeds.
3. Decide the sowing time according to local agricultural advice.
4. Do not allow waterlogging in the field.
5. Keep the seed rate according to the variety and local recommendation.
6. Apply fertilizers based on soil testing.
7. Keep weeds under control during the early stage.
8. Monitor the crop regularly.
9. Choose control measures only after identifying the disease/pest.
10. Always use pesticides according to the current label and local agricultural recommendation.

🔗 23. Useful Articles for Farmers

• Horse Gram Farming
• Cowpea Farming
• Kidney Beans
• Black Gram Farming: Complete Cultivation Guide for High Yield
• Moong Farming
• Pigeon Pea Farming
• Chickpea Farming
• Lentil Farming
• Carbon Farming in India: Benefits & Practices Guide
• Low Cost Irrigation Method
• Micro Irrigation System
• Plant a Tree with Just One Liter of Water
• How to Do Organic Farming
• Benefits of Natural Farming
• Vermicompost Preparation Method
• Benefits of Drip Irrigation
• Pest and Disease Management
• Soil Health Card Scheme

❓ 24. Frequently Asked Questions About Kidney Bean Farming

Q1. When is Kidney Bean Farming Done?

The season for kidney bean farming changes according to the region. According to ICAR-IIPR, it is mainly grown as a Kharif crop in Himalayan areas, while it is also grown during the Rabi season in some plain areas.

Q2. Is Kidney Bean Only a Rabi Crop?

No. It is not correct to consider kidney bean only as a Rabi crop throughout India. Its season changes according to the region and production system.

Q3. How Much Seed is Required for One Acre of Kidney Beans?

The seed rate depends on variety, seed size, germination percentage, and spacing. Therefore, 48–56 kg/acre should not be considered a fixed rate for the whole of India.

Q4. In How Many Days is the Kidney Bean Crop Ready?

The duration changes according to the variety and region. In one ICAR demonstration in Dehradun, a duration of about 90–115 days was recorded, while some IIPR varieties have a duration of 120–145 days.

Q5. Which Soil is Good for Kidney Beans?

Kidney beans can be grown in suitable soil with good drainage. Avoiding waterlogging is important. Soil testing is useful to check the actual suitability of the field.

Q6. How Much Irrigation is Required for Kidney Beans?

There is no fixed number of irrigations. Irrigate according to soil, rainfall, weather, and crop stage. Avoid waterlogging and do not allow moisture shortage during important growth stages.

Q7. Which is the Best Variety of Kidney Bean?

There is no single “best” variety for the whole of India. For example, PDR 14, IPR 96-4, IPR 98-5, and IPR 98-3-1 are among the varieties available for different recommended regions.

Q8. Which Diseases Affect Kidney Beans?

BCMV, Anthracnose, and other diseases can cause problems in kidney beans depending on the region. Adopt control measures only after correctly identifying the disease.

Q9. Which Pests Affect Kidney Beans?

Aphids, whiteflies, and other pests can affect kidney beans according to the region and weather. Regular crop monitoring is necessary.

Q10. Does Kidney Bean Require More Nitrogen?

Kidney beans can have less effective nodulation compared to some other pulse crops. ICAR-IIPR has highlighted the requirement of nitrogen for better growth. However, the actual quantity should be decided based on soil, irrigation, variety, and local recommendations.

Q11. Can Kidney Beans Be Grown During the Rainy Season?

Yes, kidney beans are grown as a Kharif crop in some areas. However, it is necessary to avoid conditions of excessive rainfall and waterlogging.

Q12. Is Soil Testing Necessary for Kidney Bean Farming?

Soil testing is very useful because it shows the actual nutrient status and helps in making fertilizer management more accurate.

Q13. Can Kidney Beans Be Grown Organically?

Organic farming principles can be followed in kidney bean farming, but certified inputs, organic farming standards, and advice from a local agricultural expert should be followed.

Q14. Is Kidney Bean Farming Profitable?

Kidney bean farming can be profitable, but profit is not fixed. Actual profit depends on production cost, yield, quality, and selling price.

👨‍🌾 Final Advice for Farmers

The most important thing in kidney bean farming is not simply using more seeds or more fertilizer. The right variety for the right region, sowing at the right time, proper plant population, balanced nutrition, good drainage, and timely disease and pest management are the foundations of good production.

Especially, do not decide the quantity of fertilizer, seed treatment, herbicide, or pesticide based on a general internet article. Give priority to the current recommendations of your district Agriculture Department, Agricultural University, or KVK.

📚 Official Sources and References

While preparing this article, the following institutional sources were mainly given priority for verification of information related to kidney beans:

• ICAR – Indian Council of Agricultural Research
• ICAR – Indian Institute of Pulses Research (IIPR), Kanpur
• Relevant State Agriculture Departments
• Agricultural Universities and regional recommendations from KVKs

Final fact-check update of the article: 22 August 2026

Disclaimer: Agricultural recommendations can change according to region, weather, soil, variety, and government/institutional recommendations. Before using any fertilizer, herbicide, or pesticide, always check the current product label, registration, and advice from a local agricultural expert.