in Donbas agricultural products accounted for Ukraine's largest export category. In March 2020, Ukraine's parliament lifted a ban on the sale of farmland. The land market was fully opened for the first time independence on 1 July 2021. Ukraine also produces some wine, mostly in the South-Western regions. In 2018: It was the 5th largest world producer of maize (), after the US, China, Brazil and Argentina; It was the 8th largest world producer of wheat (); It was the 3rd largest world producer of potato (), second only to China and India; It was the world's largest producer of sunflower seed (); It was the 7th largest world producer of sugar beet (), which is used to produce sugar and ethanol; It was the 7th largest world producer of barley (); It was the 7th largest world producer of rapeseed (); It was the 13th largest world producer of tomatoes (); It was the 5th largest world producer of cabbage (), after China, India, South Korea and Russia; It was the 11th largest world producer of apple (); It was the 3rd largest world producer of pumpkin (), second only to China and India; It was the 6th largest world producer of cucumber (); It was the 5th largest world producer of carrot (), after China, Uzbekistan, USA and Russia; It was the 4th largest world producer of dry peas (), second only to Canada, Russia and China; It was the 7th largest world producer of rye (); It was the 3rd largest world producer of buckwheat (), second only to China and Russia; It was the 6th largest world producer of walnuts (); Produced of soy; It produced of onion; Produced of grape; It produced of oats; Produced of watermelon; Produced of cherries; In addition to smaller productions of other agricultural products. Professionalized, scientific breeding of barley began in 1910 and now supplies improved cultivars to the country. Information technology Ukraine has a long-standing reputation as a major technology region, with a well-developed scientific and educational base. In March 2013 Ukraine ranks fourth in the world in number of certified IT professionals after the United States, India and Russia. On top of that, the experts recognize both quantitative and qualitative potential of the Ukrainian specialists. In 2011 the number of IT specialists working in the industry reached 25,000 people with 20% growth. The volume of the Ukrainian IT