At the farms of Tekom Agro Group in the Odesa region, mineral fertilizers are applied to winter crop sowings. Specifically, ammonium sulfate is used for winter rapeseed. With the autumn application of ammonium sulfate, winter rapeseed plants, before entering winter, have a more intense green color and are better developed. Ammonium sulfate also performs well in the verti-till technology, which all farms of the agricultural association use, says Ruslan Hrytsenko, the deputy director for production at "Agrofirma "Pivdenna".