General Information
- Category- Vegetable, Salad
- Binomial Name- Phaseolus vulgaris
- Common Names- Red kidney beans, Rajma
- Spread- 12-16 inches**
- Height- 18-20 inches**
- Average Production- 120-250 grams per plant
- Days to Maturity- 50-70 days(for green pods)
Nutrition Values:
- Calories: 26
- Water: 91.4%
- Protein: 1.7 grams
- Carbohydrates: 4.5grams
- Sugar: 0.3 grams
- Fiber: 4 grams
- Fat: 0.50 grams
Vitamins
- Vitamin C- 1.2 mg
- Vitamin E- 0.03 mg
- Vitamin K- 8.4 μg
- Vitamin B1- 0.16 mg
- Vitamin B2- 0.06 mg
- Vitamin B3- 0.58 mg
- Vitamin B5- 0.22 mg
- Vitamin B6- 0.12 mg
- Vitamin B9- 130 μg
Minerals
- Potassium- 403 mg
- Calcium- 28 mg
- Iron- 2.9 mg
- Magnesium- 45 mg
- Phosphorous- 142 mg
- Copper- 0.24 mg
- Sodium- 2 mg
- Zinc- 1.07 mg
*The values are standard average per 100 grams and might change a bit.
** The above values are for green pods.
Environmental Requirements:
- Soil- Loamy
- Soil Moisture- 25%
- Soil pH- 5.5-6.0
- Sun Requirements- Full Sun
- Best Time to Plant- Spring (Feb-March)
- Temperature range-16-32 Celsius
Tips to Grow Kidney Beans:
- Arrange good quality of kidney beans seeds.
- The soil should be loamy and well-drained in nature. It should be loose also.
- Kidney bean seeds should be planted 1 to 1-1/2 inches deep. Space seeds about 3-4 inches for vice varieties and about 8 inches for bush varieties. You should only plant one kidney bean plant per pot
- Before you add any soil to the container, you will need to spread a layer of gravel (about 1-1.5 inches based on pot size) at the bottom to improve drainage. Otherwise, kidney bean plants can quickly become waterlogged inside of pots.
- After the plant gets started, kidney beans actually produce their own nitrogen inside their roots. A fertilizer with high levels of nitrogen will inevitably end up feeding the plant too much nitrogen.
- Check the beans of one pod before you harvest the other pods. You can check to see if the beans are done by carefully biting down on one. If your teeth can dent the bean, then the rest should be allowed to dry for a longer period of time before you harvest and shell them.
References:
- https://fdc.nal.usda.gov
- https://iari.res.in
- https://www.researchgate.net
- Texbook of Vegetables by B.R. Chaudhary
** The values are standard values but might change based on the environmental conditions
I got 2 pots, one ceramic and the other metal, both being 12 inches in length and 36 inches wide and 12 inches deep. Thanks for the above article. However, I got the following questions:
Per the information provided provided above:
1. Have planted seeds around 2 inches apart and a bit away from borders. Have planted 80 seeds per pot (5 per row and 16 rows). Am not sure, if the pots will get quite cramped up once the saplings grow and turn into bigger plants. Per the above, each plant has a spread of 12-16 inches. Kindly confirm on how to proceed ahead.
2. What is the water quantity to be given in such a scenario and how often?
3. As am planning to have a 3rd pot too, what is the approximate depth of the gravel layer to be done. My current gravel layer is around 1.5 inches deep. Is that sufficient or do I need more?
4. Is there a crop rotation required for plants in the pots, as in fields too or nothing as such here?
5. What is the approximate quantity of healthy big plants required to produce 100 gms of kidney beans, so that can be sufficient?
6. Would be great if we can have an ROI (Return on Investment Indicator), that helps identify the potential rewards vs the amount and effort invested.
Note: The above tips are not Tips but steps to plant a sapling. Going further from that is missing.
Dear Kunal,
Thanks for raising your questions to our community, below are the answers to your questions-
1. If you are going with bush variety (recommended for pot planting), space the seeds at about 8 inches of space, so if you utilize the pot properly, you can have about 4 plants in 12 inch pot with some external support, you might get an idea here. If you are going with vine variety place the seeds about 3-4 inches apart and in this case you can have about 9-16 plants in 12 inch pot based on how you want to utilize your pot, again you will have to provide external support to the plants. Also, the plants will get compacted but it’s fine for pots. Similarly you can get an idea for the bigger pot.
2. Kidney beans grow well in moist soil which as per standards in around 25% moisture, that means if you put around 10 Kg soil in your pot, you should put around 3 liters of water once or twice a week based on the soil quality and climate in your locality.
3. Gravel layer should be 1 to 1.5 inches in thickness based on pot size, too much of gravel reduces the amount of the soil in the pot and soil is the most important ingredient for a proper growth of the plant.
4. Rotation is not required if you are planning to harvest from the pot, but if you want to wish to move the plants to open garden you can rotate them.
5. A plant can be considered healthy if its not suffering from any disease and meets the dimensions mentioned in our “General Information” section ( about 12-16 bush and 18-20 in length)in such case the plant can produce 120-250 grams of beans as mentions above.
(Production references- https://www.researchgate.net, https://www.apnikheti.com)
6. Currently we do not have an estimated cost, we are launching our product line soon and we will definitely include ROI as a monetary aspect, but the bigger picture or ROI which we want to encourage is fresh and healthy vegetables, water saving, healthy environment and the joy of planting 🙂
please let us know if the answers satisfy your query, Thanks.
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