Sweet Potato

Water

Rain is enough, even in a dry year.

Needs about 450 mm of water here in its growing months. Rain gives about 700 mm it can use in a normal year, and 640 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 34 °C / 25 °C (outside its best range)
• Jul 31 °C / 24 °C
• Aug 30 °C / 24 °C
• Sep 30 °C / 24 °C
• Oct 30 °C / 21 °C

Months in orange are outside its best range.

Soil

Soil for Sweet Potato: 7 out of 10 (okay).

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

Likes pH 5.0–7.0.

Money

Yield: about 41 quintals an acre here in this season (district figures).

Mandi price at this season's harvest so far (October–November 2026): about ₹2,825 a quintal across mandis in your state.

This week: about ₹3,350 a quintal, the middle of 4 mandis in your state (latest 12 Nov). At that price an acre would leave about ₹80,000 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.