Castor Seed
Sow in July, harvest around December
This season's sowing time (July–August) is over.
No figures for your district: its government crop records list no area or yield for this crop. Priced from mandis across India.
Only with irrigation: rain gives too little of its water to count on
- Doesn't suit: Too dry without irrigation
- Needs care: Frost risk in December
- Needs care: Soil 7/10
Why, and how to make it work Hide details
Water
Too dry to grow on rain alone. It would need irrigation.
Needs about 560 mm of water here in its growing months. Rain gives about 90 mm it can use in a normal year, and 60 mm in a dry year.
Temperature
Grows best at 20–30 °C on average, and survives 15–39 °C.
Here, in its growing months (day / night):
- Jul 37 °C / 27 °C (outside its best range)
- Aug 35 °C / 27 °C (outside its best range)
- Sep 34 °C / 24 °C
- Oct 33 °C / 18 °C
- Nov 28 °C / 11 °C (outside its best range)
- Dec 23 °C / 7 °C (outside its best range)
Months in orange are outside its best range.
Nights in December can bring frost. When frost is forecast, water the field lightly in the evening.
Soil
Soil for Castor Seed: 7 out of 10 (okay).
- The pH here suits it.
- Many fields here are short of boron, which it needs a lot.
- Most fields here are short of nitrogen.
- Most fields here are short of potassium.
Likes pH 6.0–7.5.
How the soil score worksMoney
Yield: about 7.5 quintals an acre, the typical figure across India (no figures for your state).
Rain gives it too little of the water it needs, so there's no income figure on rain alone: grow it only with irrigation.
Mandi price at last season's harvest (December 2025–January 2026): about ₹6,218 a quintal across India's mandis.
This week: about ₹7,560 a quintal, the middle of 9 mandis across India (latest 13 Nov).
- ₹4,670 2021
- ₹6,580 2022
- ₹5,720 2023
- ₹5,530 2024
- ₹6,000 2025
Prices are usually best in November.
Typical costs are about ₹24,000 an acre: about half of what a usual harvest earns (2024–2026), as in farm cost surveys. They are spent whatever the harvest.
How to make it work
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Short of nitrogen Your soil is likely short of nitrogen.
Add about a quarter more urea than the usual dose, in two or three splits. A pulse crop in rotation also adds nitrogen.
Ask your Krishi Vigyan Kendra what to add for this crop.
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Short of potassium Your soil is likely short of potassium.
Add about a quarter more potash (MOP) than the usual dose.
Ask your Krishi Vigyan Kendra what to add for this crop.
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Short of organic carbon Your soil is likely short of organic carbon.
Add 4 tonnes of compost or farmyard manure per acre before sowing, and plough crop leftovers back in instead of burning them.
Ask your Krishi Vigyan Kendra what to add for this crop.
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Short of manganese Your soil is likely short of manganese.
Spray manganese sulphate, 5 g per litre of water, on the young crop.
Ask your Krishi Vigyan Kendra what to add for this crop.
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Short of boron Your soil is likely short of boron.
Mix 4 kg of borax per acre into the soil before sowing.
Ask your Krishi Vigyan Kendra what to add for this crop.