Sweet Potato

Water

Too dry to grow on rain alone. It would need irrigation.

Needs about 510 mm of water here in its growing months. Rain gives about 110 mm it can use in a normal year, and 70 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 29 °C / 18 °C
• Aug 28 °C / 17 °C
• Sep 27 °C / 13 °C
• Oct 23 °C / 7 °C (outside its best range)

Months in orange are outside its best range.

Soil

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

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

Likes pH 5.0–7.0.

Money

Yield: about 38 quintals an acre, the typical figure across India (no figures for your state).

Rain gives it too little of the water it needs, so there's no income figure on rain alone: grow it only with irrigation.

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).

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.