Castor Seed
Sow in July, harvest around December
This season's sowing time (July–August) is over.
Grown on 6.2 acres here. Priced from mandis across India.
₹37,000–₹56,000
per acre a season, before costs
After typical costs: ₹13,000–₹32,000 an acre a season
- Suits: Rain is enough
- Suits: Ideal temperatures
- Needs care: Soil 7/10
Why, and how to make it work Hide details
Water
Rain is enough in a normal year. Keep one irrigation ready for a dry year.
Needs about 610 mm of water here in its growing months. Rain gives about 580 mm it can use in a normal year, and 330 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 35 °C / 26 °C (outside its best range)
- Aug 34 °C / 25 °C
- Sep 34 °C / 25 °C
- Oct 33 °C / 24 °C
- Nov 30 °C / 22 °C
- Dec 29 °C / 20 °C
Months in orange are outside its best range.
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 organic carbon.
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).
Mandi price at last season's harvest (December 2025–January 2026): about ₹6,218 a quintal across India's mandis.
- ₹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 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 iron Your soil is likely short of iron.
Spray ferrous sulphate, 5 g per litre of water, when young leaves turn yellow.
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.