Sweet Potato

Water

Rain falls about 2 irrigations (5 cm each) short in a normal year, so it's risky without water.

Needs about 510 mm of water here in its growing months. Rain gives about 420 mm it can use in a normal year, and 310 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 35 °C / 24 °C (outside its best range)
• Jul 31 °C / 22 °C
• Aug 30 °C / 21 °C
• Sep 30 °C / 21 °C
• Oct 31 °C / 20 °C

Months in orange are outside its best range.

Soil

Soil for Sweet Potato: 8 out of 10 (good).

Not in the score: phosphorus.

• The pH here suits it.
• Many fields here are short of nitrogen, which it needs a lot.
• Most fields here are short of sulphur.
• 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 81% of the water it needs, so the money here is worked at 81% of this yield.

Mandi price at this season's harvest so far (October–November 2026): about ₹3,300 a quintal across mandis in your state.

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 ₹77,000 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 September.

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.