Sweet Potato

Water

Rain falls about 2 irrigations (5 cm each) short in a normal year, so it's risky without water.

Needs about 370 mm of water here in its growing months. Rain in its months gives about 120 mm it can use in a normal year (30 mm in a dry one), and the soil holds about 160 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 30 °C / 23 °C
• Nov 28 °C / 18 °C
• Dec 26 °C / 15 °C
• Jan 27 °C / 15 °C
• Feb 29 °C / 18 °C

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.

Likes pH 5.0–7.0.

Money

Yield: about 37 quintals an acre here in this season (district figures).

On rain alone it gets about 76% of the water it needs, so the money here is worked at 76% of this yield.

Mandi price at last season's harvest (February–March 2026): about ₹2,313 a quintal across mandis in your state.

Prices are usually best in September.

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.