Tapioca (Cassava)

Water

Rain falls about 6 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 670 mm it can use in a normal year, and 480 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 36 °C / 26 °C (outside its best range)
• Jul 33 °C / 26 °C (outside its best range)
• Aug 33 °C / 26 °C (outside its best range)
• Sep 33 °C / 26 °C (outside its best range)
• Oct 32 °C / 23 °C
• Nov 29 °C / 15 °C
• Dec 24 °C / 11 °C (outside its best range)
• Jan 22 °C / 9 °C (outside its best range)
• Feb 27 °C / 12 °C (outside its best range)
• Mar 32 °C / 16 °C
• Apr 37 °C / 22 °C (outside its best range)
• May 37 °C / 25 °C (outside its best range)
• Jun 36 °C / 26 °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.

Likes pH 5.5–8.0.

Money

Yield: about 149 quintals an acre, the typical figure across India (no figures for your state).

On rain alone it gets about 70% of the water it needs, so the money here is worked at 70% 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 70 mandis across India (latest 13 Nov). At that price an acre would leave about ₹1.2 lakh a year after 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.