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 150 mm it can use in a normal year (90 mm in a dry one), and the soil holds about 10 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 33 °C / 24 °C (outside its best range)
• Nov 31 °C / 22 °C
• Dec 30 °C / 19 °C
• Jan 31 °C / 19 °C
• Feb 34 °C / 21 °C

Months in orange are outside its best range.

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 organic carbon.

Likes pH 5.0–7.0.

Money

Yield: about 83 quintals an acre here in this season (district figures).

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 ₹2,388 a quintal across India's mandis.

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.