Sweet Potato

Water

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

Needs about 520 mm of water here in its growing months. Rain gives about 410 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 39 °C / 26 °C (outside its best range)
• Jul 34 °C / 26 °C (outside its best range)
• Aug 33 °C / 26 °C (outside its best range)
• Sep 33 °C / 24 °C (outside its best range)
• Oct 32 °C / 18 °C

Months in orange are outside its best range.

Soil

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

Not in the score: nitrogen and boron.

• The pH here suits it.
• 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 38 quintals an acre, the typical figure across India (no figures for your state).

On rain alone it gets about 77% of the water it needs, so the money here is worked at 77% of this yield.

Mandi price at this season's harvest so far (October–November 2026): about ₹3,100 a quintal at mandis in your district.

This week: about ₹2,650 a quintal, the middle of 12 mandis in your state (latest 13 Nov). At that price an acre would leave about ₹20,000 a season after typical costs.

Prices are usually best in October.

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.