Sweet Potato

Water

Rain falls about 3 irrigations (5 cm each) short in a normal year, so it's risky without water.

Needs about 430 mm of water here in its growing months. Rain gives about 310 mm it can use in a normal year, and 160 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):

• Jun 30 °C / 22 °C
• Jul 28 °C / 21 °C
• Aug 28 °C / 21 °C
• Sep 28 °C / 21 °C
• Oct 29 °C / 21 °C

Soil

Soil for Sweet Potato: 9 out of 10 (good).

• The pH here suits it.
• Most fields here are short of iron.

Likes pH 5.0–7.0.

Money

Yield: about 63 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

On rain alone it gets about 72% of the water it needs, so the money here is worked at 72% of this yield.

Mandi price at this season's harvest so far (October–November 2026): about ₹1,950 a quintal at mandis in your district.

This week: about ₹2,650 a quintal, the middle of 4 mandis in your state (latest 13 Nov). At that price an acre would leave about ₹62,000 a season after typical costs.

Prices swing a lot from year to year, so income can be well above or below this range.

Prices are usually best in December.

Typical costs are about ₹59,000 an acre: about half of what a usual harvest earns (2023–2025), as in farm cost surveys. They are spent whatever the harvest.