Sweet Potato

Water

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

Needs about 290 mm of water here in its growing months. Rain in its months gives about 40 mm it can use in a normal year (30 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 28 °C / 19 °C
• Nov 25 °C / 14 °C
• Dec 22 °C / 10 °C (outside its best range)
• Jan 21 °C / 9 °C (outside its best range)
• Feb 23 °C / 11 °C (outside its best range)

Months in orange are outside its best range.

Soil

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

• The pH here suits it, though not most crops.
• Many fields here are short of nitrogen, which it needs a lot.
• Many fields here are short of potassium, which it needs a lot.

Likes pH 5.0–7.0.

Money

Yield: about 39 quintals an acre here in its other seasons (district figures).

On rain alone it gets about 83% of the water it needs, so the money here is worked at 83% 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.