Sweet Potato

Water

Rain falls about 1 irrigation (5 cm) short in a normal year, so it's risky without water.

Needs about 400 mm of water here in its growing months. Rain gives about 360 mm it can use in a normal year, and 210 mm in a dry year.

Temperature

Grows best at 18–28 °C on average, and survives 10–38 °C.

Here, in its growing months (day / night):

• Oct 33 °C / 25 °C (outside its best range)
• Nov 30 °C / 23 °C
• Dec 29 °C / 21 °C
• Jan 30 °C / 20 °C
• Feb 32 °C / 21 °C

Months in orange are outside its best range.

Soil

Soil for Sweet Potato: 7 out of 10 (okay).

• The pH here suits it.
• Many fields here are short of nitrogen, which it needs a lot.
• Many fields here are short of potassium, which it needs a lot.
• Most fields here are short of organic carbon.

Likes pH 5.0–7.0.

Money

Yield: about 76 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

On rain alone it gets about 89% of the water it needs, so the money here is worked at 89% of this yield.

Mandi price at last season's harvest (February–March 2026): about ₹2,388 a quintal across India's mandis.

Prices are usually best in September.

Typical costs are about ₹55,000 an acre: about half of what a usual harvest earns (2024–2026), as in farm cost surveys. They are spent whatever the harvest.