Sweet Potato

Water

Rain is enough in a normal year. Keep one irrigation ready for a dry year.

Needs about 170 mm of water here in its growing months. Rain gives about 180 mm it can use in a normal year, and 110 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):

• Nov 17 °C / 2 °C (outside its best range)
• Dec 10 °C / -2 °C (outside its best range)
• Jan 7 °C / -3 °C (outside its best range)
• Feb 10 °C / 0 °C (outside its best range)
• Mar 16 °C / 4 °C (outside its best range)

Nights in November can bring frost while the plants are young. Sow a little later, or cover the seedlings on cold nights.

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).

Mandi price at last season's harvest (March–April 2026): about ₹2,450 a quintal across India's mandis.

Prices are usually best in September.

Typical costs are about ₹57,000 an acre: about half of what a usual harvest earns (2024–2026), as in farm cost surveys. They are spent whatever the harvest.