Maize in India: Climate, Regions and Uses

From Mexico to Makka: How Maize Reached India

Maize (Zea mays, a grass of the family Poaceae) was domesticated in southern Mexico about 9,000 years ago from a wild grass, teosinte. Spanish voyagers carried it to Europe after 1492 and it spread worldwide. Americans call it corn, and Hindi calls it makka. NCERT Class 12 gives the route: maize came to India through Africa and Spain, by the seventeenth century. Portuguese traders are also credited with carrying American crops to India's west coast (NDA 2018-II asked which crop they introduced: chilli).

Maize earns the title queen of cereals from its yield. It is a C4 plant, like sugarcane, jowar and bajra: it fixes carbon efficiently in heat and bright light, whereas rice and wheat are C3. It is also the crop in which Barbara McClintock found "jumping genes", which won her the 1983 Nobel Prize in Physiology or Medicine. Because yield potential is so high, the gap between what maize can give and what India's farms do give is the real story, as the tables below show.

What Maize Needs: Temperature, Rain, Soil and Flowering

The monsoon sets the calendar for kharif maize, which is sown with the first good rains, so a late or erratic monsoon moves the whole schedule, flowering included. That is why timely sowing and ridge-and-furrow drainage both matter.

Flowering decides the harvest. Maize is monoecious: the male flowers form the tassel at the top and the female flowers the cob lower down. Each silk thread that sticks out of the cob leads to one potential kernel, and the kernel forms only if a pollen grain lands on that silk. Heat or drought at this stage leaves gaps in the cob.

Three Seasons and the Leading States

Maize is mainly a kharif crop, sown with the monsoon in June–July and harvested in September–October. But IIMR counts three seasons, and the Third Advance Estimates for 2025-26 show how production splits.

India grew maize on 14.4 million hectares in 2025-26, giving 55.1 million tonnes at 3.82 tonnes per hectare. USDA ranks India 4th in area and 6th in output, behind the USA (432 million tonnes), China, Brazil, Argentina and the EU. The US yield is about 11.7 t/ha, three times India's.

These six states make 70% of the crop. Notice that Maharashtra, with more land than Karnataka, produces less, while Bihar and Andhra Pradesh grow nearly as much as Maharashtra on well under half its area, thanks to irrigated rabi crops. Dr Jat traced yield gaps particularly to crop management, and asked for a "systems-science" approach rather than just new seed.

Feed, Starch, Food and Fuel: Where the Maize Goes

The shares are FICCI estimates and vary by source. The surprise is ethanol. The government's E20 programme blends 20% ethanol into petrol, and India reached about that level in late 2025, years ahead of the original 2030 target. Maize has become its biggest feedstock: distilleries used 125.75 lakh tonnes of it in the 2024-25 ethanol supply year (a Lok Sabha reply of December 2025). Our articles on E20 and the Ethanol Blending Programme have the details.

Poultry explains the feed share. Maize supplies most of the energy in poultry rations, so feed costs, and with them egg and chicken prices, track maize prices. Exports are small, 1.27 million tonnes worth Rs 3,358 crore in 2025-26, mostly to Bangladesh, Vietnam and Nepal.

The risk is "food versus fuel". Dr Jat told the conference that maize must be targeted across seasons without compromising oilseeds and pulses. The same logic explains why our agricultural economics page treats crop diversification and MSP as one topic.

QPM, Baby Corn, Sweet Corn and Popcorn

Much of India's maize is sown as hybrid seed, and farmers buy fresh seed each year because saved seed loses its vigour. The conference heard that 329 maize hybrids have been developed in five years, and asked for more public-sector hybrids to keep seed affordable. Popcorn shows what a new hybrid can do: on 24 August 2026 the Vice-President launched India's first non-GMO, high-expansion popcorn hybrid in Andhra Pradesh, ending a dependence on imported hybrid technology (see our popcorn hybrid explainer).

Fall Armyworm and Other Threats

The fall armyworm (Spodoptera frugiperda) is a moth from the Americas whose caterpillars feed inside the whorl of young maize plants, leaving ragged holes and sawdust-like droppings. It reached Africa in 2016 and was first reported in India in 2018, in Karnataka, and has since spread across maize states. The caterpillar has an inverted Y on its head and four dark spots on its eighth abdominal segment. Control is integrated: early sowing, pheromone traps, egg parasitoids such as Trichogramma, and sprays at the early larval stage. Intercropping maize with a pulse is also advised.

Other problems are stem borers, leaf blights, and aflatoxin, a toxin from a mould (Aspergillus flavus) that grows on damp stored grain. The conference's chief guest, Dr R.S. Paroda, stressed aflatoxin management for safe food and feed.

Maize against Rice, Wheat and Millets

Maize also uses much less water than paddy, which is why Punjab and Haryana, where groundwater is falling, promote it as a diversification crop. For the wider picture of seasons and farming types, see our economic geography of agriculture page.

How UPSC Has Asked It: Past Papers Solved

Maize itself appears as a history question, while the crop calendar and cropping systems recur as geography. Six questions, solved.

Practice MCQs (with answers)

1. According to NCERT, maize needs a temperature of about
   1. 10–15 °C
   2. 21–27 °C
   3. 30–35 °C
   4. above 40 °C
2. In a maize plant, the male flowers are found in the
   1. cob
   2. silk
   3. tassel
   4. husk
3. The fall armyworm, first reported in India in 2018, mainly damages
   1. maize
   2. cotton
   3. sugarcane
   4. wheat
4. Baby corn is
   1. a genetically modified maize
   2. a dwarf variety grown for fodder
   3. maize harvested at full grain maturity
   4. the young, unpollinated cob picked soon after the silk appears
5. Quality protein maize (QPM) is richer in
   1. starch and oil
   2. lysine and tryptophan
   3. vitamin A and iron
   4. calcium and sodium
6. The largest single use of maize in India is
   1. human food
   2. starch
   3. poultry and animal feed
   4. export
7. Which statement about maize is correct?
   1. It is a C3 plant, like rice and wheat
   2. It is grown only in the kharif season
   3. It is counted among the millets (Shree Anna)
   4. It is grown in kharif, rabi and spring seasons in different regions
8. A state grows maize on 2 million hectares at 2.5 t/ha. If the yield rises to 3.5 t/ha on the same area, the extra output is
   1. 2 million tonnes
   2. 1 million tonnes
   3. 5 million tonnes
   4. 7 million tonnes

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