Sweet Potato

Water

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

Needs about 410 mm of water here in its growing months. Rain gives about 320 mm it can use in a normal year, and 220 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 28 °C / 16 °C
• Jul 25 °C / 18 °C
• Aug 24 °C / 17 °C
• Sep 24 °C / 16 °C
• Oct 22 °C / 12 °C (outside its best range)

Months in orange are outside its best range.

Soil

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

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

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 78% of the water it needs, so the money here is worked at 78% of this yield.

Mandi price at this season's harvest so far (October–November 2026): about ₹3,500 a quintal across India's mandis.

This week: about ₹3,200 a quintal, the middle of 73 mandis across India (latest 13 Nov). At that price an acre would leave about ₹37,000 a season after typical costs.

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.