Tomas Alduaga holds beetroots at the Lurkoi organic farm, during the coronavirus disease (COVID-19) outbreak, Busturia, Spain, April 20, 2020. Picture taken April 20, 2020. REUTERS/Vincent West

Assoumpata Uwamariya (2R) samples raw beetroot bulbs harvested from a farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Raw beetroot bulbs harvested from a farm are packed in a basin in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya works on a beetroot farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya works on a beetroot farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Bottles of wine from the juice of beetroot are seen labeled at a production stall in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya (L) cleans raw beetroot bulbs harvested from a farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Beetroot plants grow on a farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya (C) samples raw beetroot bulbs harvested from a farm in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya wine bottles from the juice of beetroots at her production stall in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Customers drink wine from the juice of beetroot at a courtyard in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya prepares wine from the juice of beetroot at her production stall in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

A worker labels bottles of wine from the juice of beetroot at a production stall in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Assoumpata Uwamariya bottles wine from the juice of beetroots at her production stall in Rubavu district, Western province, Rwanda October 3, 2018. Pictures taken October 3, 2018. REUTERS/Jean Bizimana

Vegetables are shown at VeggieWorld fair in Lisbon, Portugal April 29, 2018. REUTERS/Rafael Marchante

A picture shows a piece of food served by volunteers to anti-government protesters guarding barricades during a protracted stand-off with riot police in Kiev, February 4, 2014. During the more than two months that Ukrainian anti-government protesters have been holding out in a tent camp and at barricades in central Kiev, during temperatures that frequently drop to -30 degrees Celsius, no one has been going hungry. The efficiency of the food supply system, organised by volunteers who cook up donated food and deliver it to the front line, shows an astonishing degree of self-sufficiency of the Maidan opposition movement. The barricade cuisine also shines a light on the variety of Ukrainian cuisine. The food in the picture is displayed on pieces of plywood, that protesters use for making shields for street battles. Picture shows a jar of borsch, a typical Ukrainian beetroot soup. REUTERS/Thomas Peter (UKRAINE - Tags: POLITICS CIVIL UNREST)

Belarussian students gather beets in the field of farmer Igor Pakush near the village of Putniki, some 40 km (25 miles) northwest of Minsk, October 2, 2013. Students help harvest crops on the privately-owned farm, and in turn, receive some money as a payment for their work. REUTERS/Vasily Fedosenko (BELARUS - Tags: AGRICULTURE BUSINESS SOCIETY)

Belarussian students gather beets in the field of farmer Igor Pakush near the village of Putniki, some 40 km (25 miles) northwest of Minsk, October 2, 2013. Students help harvest crops on the privately-owned farm, and in turn, receive some money as a payment for their work. REUTERS/Vasily Fedosenko (BELARUS - Tags: AGRICULTURE BUSINESS SOCIETY TPX IMAGES OF THE DAY)

Farm workers reap beetroots at a farm in Klippoortie, east of Johannesburg November 21, 2012. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: AGRICULTURE)

Farm workers harvest beetroots at a farm in Klippoortie, east of Johannesburg November 21, 2012. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: AGRICULTURE)

Farm workers load beetroots onto a tractor at a farm in Klippoortie, east of Johannesburg November 21, 2012. REUTERS/Siphiwe Sibeko (SOUTH AFRICA - Tags: AGRICULTURE)

Sugar-beet roots roll from a trailer on a band-conveyor to be loaded onto railway cars at the freight terminal at the railway station in Oensingen some 50 kilometres (31 miles) north of Berne October 15, 2012. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: TRANSPORT AGRICULTURE)

A worker checks on sugar beets that were unloaded at Konya Seker Sugar Factory in Cumra, a small town about 50km (31 miles) south of the central Anatolian city of Konya January 27, 2012. REUTERS/Umit Bektas (TURKEY - Tags: BUSINESS FOOD)

Employee Klaus Schacherer of Berlin's sprouts manufacturer 'Sprossenmanufaktur' carries a box with beetroot sprouts in Berlin June 6, 2011. The managing director of a German organic farm near Hanover that might be at the centre of a deadly E.coli outbreak said on Monday he was baffled that his beansprouts are suspected of causing such devastation. German officials said on Sunday the beansprouts of Klaus Verbeck, the head of the "Gaertnerhof Bienenbuettel", could be the source of the EHEC bacteria (enterohaemorrhagic Escherichia coli) outbreak that has killed 22 and made more than 2,200 people ill across Europe. The farm has been shut, produce recalled and further test results are due on Monday. REUTERS/Wolfgang Rattay (GERMANY - Tags: FOOD HEALTH)

A woman gathers beetroot crops in the valley of Parotani in the outskirts of Cochabamba December 17, 2010. Food producers are anticipating smaller harvests next year from the valley of Cochabamba, traditionally the largest crop producer in the country, due to lack of rain causing water shortages in the La Angostura dam, according to local media. REUTERS/David Mercado (BOLIVIA - Tags: ENVIRONMENT AGRICULTURE)

A general view shows beetroot crops in the valley of Parotani in the outskirts of Cochabamba December 17, 2010. Food producers are anticipating smaller harvests next year from the valley of Cochabamba, traditionally the largest crop producer in the country, due to lack of rain causing water shortages in the La Angostura dam, according to local media. REUTERS/David Mercado (BOLIVIA - Tags: ENVIRONMENT AGRICULTURE)

A woman harvests sugar beet in a field near the village of Danilovichi, some 150 km (93 miles) southwest of the capital Minsk, October 1, 2010. REUTERS/Vladimir Nikolsky (BELARUS - Tags: AGRICULTURE)

General Director of the "Prodimeks-Holding" farm Alexander Fedyayev holds sugar beet in a field some 250 km (155 miles) south-east of the city of Voronezh, August 1, 2010. The drought that has decimated the wheat harvest from the Black Earth belt, stretching from Romania to Siberia, has put sowing for next year's crop in jeopardy too. Russia, the world's third largest wheat exporter last year, is in the midst of its worst drought in 130 years, causing forecasters to sharply reduce their export estimates, sending futures soaring in Chicago and Paris. Picture taken August 1, 2010. REUTERS/Sergei Karpukhin (RUSSIA - Tags: ENVIRONMENT AGRICULTURE BUSINESS)

A sugar beet field on the "Prodimeks-Holding" farm is seen some 250 km (155 miles) south-east of the city of Voronezh, August 1, 2010. The drought that has decimated the wheat harvest from the Black Earth belt, stretching from Romania to Siberia, has put sowing for next year's crop in jeopardy too. Russia, the world's third largest wheat exporter last year, is in the midst of its worst drought in 130 years, causing forecasters to sharply reduce their export estimates, sending futures soaring in Chicago and Paris. Picture taken August 1, 2010. REUTERS/Sergei Karpukhin (RUSSIA - Tags: AGRICULTURE ENVIRONMENT BUSINESS)

EDITORS' NOTE: Reuters and other foreign media are subject to Iranian restrictions on leaving the office to report, film or take pictures in Tehran.
A street vendor sells cooked beetroots in Tehran's Grand Bazaar in this October 13, 2008 file photo. With shops that sell everything from herbs and spices to carpets and gems now firmly closed, Tehran's Grand Bazaar is on strike with merchants warning that higher taxes could force them to shut down for good. REUTERS/Caren Firouz (IRAN - Tags: POLITICS BUSINESS CIVIL UNREST)

A selection of vegetable-based dishes, ranging from corn and mushroom tapas to a more classic assortment of olive, lentil, cheese, garlic and beetroot tapas, on offer at vegetarian restaurant Artemisia in Buenos Aires July 7, 2010. Meat-loving Argentina has seen a growth of vegetarian restaurants, associations and products as more diners have dropped steaks from their diet. To match Reuters Life! ARGENTINA-VEGETARIANS/ REUTERS/Martin Acosta (ARGENTINA - Tags: FOOD SOCIETY BUSINESS)

A selection of vegetable-based dishes, ranging from corn and mushroom tapas to a more classic assortment of olive, lentil, cheese, garlic and beetroot tapas, on offer at vegetarian restaurant Artemisia in Buenos Aires July 7, 2010. Meat-loving Argentina has seen a growth of vegetarian restaurants, associations and products as more diners have dropped steaks from their diet. To match Reuters Life! ARGENTINA-VEGETARIANS/ REUTERS/Martin Acosta (ARGENTINA - Tags: FOOD SOCIETY BUSINESS)

A street vendor sells cooked beetroots in Tehran's main bazaar October 13, 2008. Most shopkeepers in Tehran's main bazaar re-opened for business on Monday after a protest against a new sales tax, but some defied calls from their trade union to go back to work. REUTERS/Caren Firouz (IRAN)

A street vendor sells cooked beetroots in Tehran's main bazaar October 13, 2008. Most shopkeepers in Tehran's main bazaar re-opened for business on Monday after a protest against a new sales tax, but some defied calls from their trade union to go back to work. REUTERS/Caren Firouz (IRAN)

Fourteen year-old Amirah Mitchell, from the Boston neighborhood of Hyde Park, harvests beets on a farm in suburban Lincoln, Massachusetts August 14, 2007. Each year The Food Project hires 60 youth to grow food on their farms in Boston and Lincoln, Massachusetts, during which these teens harvest and distribute over 60,000 pounds of produce at a farmer's market in Dorchester and to hunger relief agencies in greater Boston. REUTERS/Brian Snyder (UNITED STATES)

Sixteen year-old Malique Gordon, from the Boston neighborhood of Roxbury, harvests beets on an urban farm plot in the Dorchester neighborhood of Boston, Massachusetts August 9, 2007. Each year, The Food Project hires 60 youths to grow food on their farms in Boston and Lincoln, Massachusetts, during which these teens harvest and distribute over 60,000 pounds of produce at a farmer's market in Dorchester and to hunger relief agencies in greater Boston. Picture taken August 9, 2007. REUTERS/Brian Snyder (UNITED STATES)

A Russian cadet from the military engineering academy uses an axe to harvest beetroots near village of Shushari outside St Petersburg September 13. Soldiers help with the harvest every year in return for share of the crops. This year they will be depending more than ever on what they receive from the farmers because of Russia's economic crisis.

A Russian cadet from the military engineering academy uses an axe to harvest beetroots near village of Shushari outside St Petersburg September 13. Soldiers help with the harvest every year in return for share of the crops. This year they will be depending more than ever on what they receive from the farmers because of Russia's economic crisis.

MF/KC

Russian army soldiers harvest beetroot on a field near the village of Chulkovo, 35 km south of Moscow, September 16. Under Soviet rule soldiers were drafted in at harvest time to help on collective farms. Now, farms must pay for their help, though usually in products rather than cash.

CIS RUSSIA