Tapioca (Cassava)

Water

Rain falls about 9 irrigations (5 cm each) short in a normal year, so it's risky without water.

Needs about 1,120 mm of water here in its growing months. Rain gives about 670 mm it can use in a normal year, and 530 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 38 °C / 26 °C (outside its best range)
• Jul 31 °C / 23 °C
• Aug 29 °C / 23 °C
• Sep 31 °C / 22 °C
• Oct 34 °C / 19 °C
• Nov 31 °C / 14 °C
• Dec 28 °C / 11 °C (outside its best range)
• Jan 27 °C / 10 °C (outside its best range)
• Feb 31 °C / 13 °C
• Mar 36 °C / 17 °C
• Apr 40 °C / 22 °C (outside its best range)
• May 42 °C / 26 °C (outside its best range)
• Jun 38 °C / 26 °C (outside its best range)

Months in orange are outside its best range.

Days in April get hotter than it likes. Young plants need shade and water then.

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 zinc.

Likes pH 5.5–8.0.

Money

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

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 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).

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.