Sweet Potato

Water

Rain is enough, even in a dry year.

Needs about 460 mm of water here in its growing months. Rain gives about 510 mm it can use in a normal year, and 460 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):

• Jul 32 °C / 25 °C (outside its best range)
• Aug 31 °C / 25 °C
• Sep 31 °C / 24 °C
• Oct 32 °C / 21 °C
• Nov 31 °C / 16 °C

Months in orange are outside its best range.

Soil

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

Not in the score: boron.

• 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 25 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

Mandi price at last season's harvest (December 2025): about ₹4,000 a quintal across mandis in your state.

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 ₹23,000 a season after typical costs.

Prices are usually best in November.

Typical costs are about ₹55,000 an acre: about half of what a usual harvest earns (2023–2025), as in farm cost surveys. They are spent whatever the harvest.