Tapioca (Cassava)

Water

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

Needs about 950 mm of water here in its growing months. Rain gives about 750 mm it can use in a normal year, and 510 mm in a dry year.

Temperature

Grows best at 20–29 °C on average, and survives 10–35 °C.

Here, in its growing months (day / night):

• Jun 35 °C / 27 °C (outside its best range)
• Jul 32 °C / 26 °C
• Aug 32 °C / 26 °C
• Sep 32 °C / 25 °C
• Oct 31 °C / 24 °C
• Nov 30 °C / 21 °C
• Dec 29 °C / 18 °C
• Jan 29 °C / 18 °C
• Feb 31 °C / 20 °C
• Mar 34 °C / 23 °C
• Apr 35 °C / 26 °C (outside its best range)
• May 37 °C / 27 °C (outside its best range)
• Jun 35 °C / 27 °C (outside its best range)

Months in orange are outside its best range.

Soil

Soil for Tapioca (Cassava): 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 5.5–8.0.

Money

Yield: about 51 quintals an acre, the typical figure in your state (your district's own figure looked wrong).

On rain alone it gets about 78% of the water it needs, so the money here is worked at 78% of this yield.

Mandi price through the year (December 2025–November 2026): about ₹3,000 a quintal across India's mandis.

This week: about ₹3,500 a quintal, the middle of 71 mandis across India (latest 13 Nov). At that price an acre would lose about ₹1.0 lakh a year at typical costs.

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 ₹2.4 lakh an acre: about half of what a usual harvest earns (2023–2025), as in farm cost surveys. They are spent whatever the harvest.