Sweet Potato

Water

Rain falls about 1 irrigation (5 cm) short in a normal year, so it's risky without water.

Needs about 280 mm of water here in its growing months. Rain in its months gives about 50 mm it can use in a normal year (40 mm in a dry one), and the soil holds about 200 mm from the monsoon at sowing.

Temperature

Grows best at 18–28 °C on average, and survives 10–38 °C.

Here, in its growing months (day / night):

• Oct 26 °C / 17 °C
• Nov 23 °C / 12 °C (outside its best range)
• Dec 20 °C / 8 °C (outside its best range)
• Jan 20 °C / 7 °C (outside its best range)
• Feb 22 °C / 9 °C (outside its best range)

Months in orange are outside its best range.

Nights in January can bring frost. When frost is forecast, water the field lightly in the evening.

Soil

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

• The pH here suits it.

Likes pH 5.0–7.0.

Money

Yield: about 36 quintals an acre, the typical figure in your state (its government crop records list none for your district).

On rain alone it gets about 88% of the water it needs, so the money here is worked at 88% of this yield.

Mandi price at last season's harvest (February–March 2026): about ₹2,288 a quintal across mandis in your state.

Prices are usually best in August.

Typical costs are about ₹55,000 an acre: about half of what a usual harvest earns (2024–2026), as in farm cost surveys. They are spent whatever the harvest.