Sweet Potato

Water

Too dry to grow on rain alone. It would need irrigation.

Needs about 430 mm of water here in its growing months. Rain in its months gives about 70 mm it can use in a normal year (50 mm in a dry one), and the soil holds about 50 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 29 °C / 20 °C
• Nov 28 °C / 19 °C
• Dec 28 °C / 17 °C
• Jan 29 °C / 17 °C
• Feb 32 °C / 18 °C

Soil

Soil for Sweet Potato: 8 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 boron.

Likes pH 5.0–7.0.

Money

Yield: about 63 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

Rain gives it too little of the water it needs, so there's no income figure on rain alone: grow it only with irrigation.

Mandi price at last season's harvest (February–March 2026): about ₹1,407 a quintal across mandis in your state.

Prices swing a lot from year to year, so income can be well above or below this range.

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.