Sweet Potato

Water

Rain is enough, even in a dry year.

Needs about 430 mm of water here in its growing months. Rain in its months gives about 310 mm it can use in a normal year (270 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 31 °C / 24 °C
• Nov 31 °C / 24 °C
• Dec 31 °C / 23 °C
• Jan 32 °C / 23 °C
• Feb 33 °C / 24 °C (outside its best range)

Months in orange are outside its best range.

Soil

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

Not in the score: nitrogen.

• The pH here suits it.
• Many fields here are short of potassium, which it needs a lot.
• Most fields here are short of boron.

Likes pH 5.0–7.0.

Money

Yield: about 58 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

Mandi price at last season's harvest (February–March 2026): about ₹3,250 a quintal at mandis in your district.

Prices are usually best in December.

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.