Main crop of your nation

[The Great Ukraine]

Winter wheat, spring barley, and corn are the country's main grain crops. Sunflowers and sugar beets the main technical, or industrial, crops. Agricultural land use has shifted significantly since The Great Ukraine declared independence from the Soviet Union in the 1940s.

[Firsthome]

Oh, and black raspberries.

They grow Almost anywhere, and are an invasive native species :3

[Giliberafta]

Our main crop is corn. Other main crops are rice, tea leaces, Marijuana, and grains.

[Provaskola]

In Provaskola we mainly grow wheats, oats, rye, green onions, and barley.

[Lydenburg]

Maize.

Cotton, tobacco, and tea are secondary cash crops.

[Korva]

Grapes, corn, cotton, and tobacco.

[The Althing Confederacy]

Aside from an excessive population...
...Several varieties of northern grain. Though It must be noted that the Althing has inherited the Svalbard Global Seed Bank by virtue that they have domination over the territory; ergo the Althing still has access to any strain of crops (even if they cant grow it themselves).

[The Merchant Republics]

The Mercatorum have no single staple crop, although by sheer numbers the answer would probably be wheat. Albeit genetically engineered and specifically tailored to suit our environment.

Grapes are also very popular, as well as potatoes.

[Basementees]

Genetically Engineered bushes whose fruit is radioactive, but the roots are delicious!

[Mezique]

Cannabis!

[Bereia]

The single most important, most produced, most exported crop in the United States at present is going to be corn. We produce hundreds of millions of tonnes of it each year, on average.

In addition, we have a thriving cannabis industry, producing both hemp-based products such as oil, wax, resin, rope, cloth, pulp, paper, fuel, and of course marijuana. We receive threats here once in a while from this or that nation of moral crusaders, trying to get us to shut the hemp producers down, but we do not.

[Kistan]

Wheat and corn. Not a lot of variety - but that's because I wasn't able to list meats and seafoods. Most of the terrain is mountainous or industrialized anyways, so animals are easier to produce than large cash crop areas. The poorest get only meat, the middle and upper classes can afford vegetables! XD

[New Brasilia]

Citrus fruits and cannabis.

[Coreyea]

Guns.

[Kalifati Arab shqiptar]

Weed

[Neuerdland]

Our main crops are corn and apples.

[The Conez Imperium]

Genetically modified versions of wheat, corn or rice

However agriculture is considered inferior compared to artificially created food that has become the main method of producing enough food to feed the ever-growing population of the God Emperor.

[Ashane]

Wheat and Urja berries.

[Ayermani]

Ayermani is among the world's biggest exporter of crude palm oil and palm-oil based products.
The country also has large-scale plantations (all State-owned) growing rubber trees (for latex),teakwood (timber),pepper,cocoa,tapioca,rice and other food crops.

[Ashyaria]

Wheat and Canola.

Wheat, is obviously used to produce foodstuffs, such as baked products. Canola is typically processed into oil which is used as a food preparation catalyst (frying), and is then either recycled as a foodstuff, or used as a fuel in vehicles.

[Alizeria]

Probably potatoes, but really Alizeria is quite fertile and a lot of things grow here.

[Imperiyazla]

Technically, Douglas Fir is the plant most planted and harvested, more than any other plant. However, there are no official douglas fir orchards. As when a woodsmen cuts down a douglas fir, law dictates he must plant one in it's place, as such, all Imperiyazlan forests are endless sources of douglas fir lumber. So logging camps are everywhere, though nobody technically farms douglas firs.
However, in terms of officialy recognized farms, tea. Tea fields are known to make up almost the whole landscape of no less than seven different duchies. Second most commonly planted and harvested would be tobacco, thirdly is potatoes, fourth is apples, fifth is opium.

[Freemopia]

coconut.
A large variety of crops are grown in Freemopia. Freemopia is a tropical rain forest temp stays 70-80degrees F.
Most Freemopians grow all their own organic food in their garden.

[Imyoji]

Buckwheat and rice.

[El Eleutheria]

Cannabis. So, so many cannabis fields in the agricultural countryside.