新单58是河南省新乡市农业科学院以自选系新美09为母本、自选系新4095为父本杂交育成的玉米新品种，2019年11月通过农业部国家农作物品种审定委员会审定。2017—2018年参加国家良种攻关黄淮海夏玉米机收组区域试验，2 a平均产量为8 472.0 kg/hm²，比对照郑单958增产5.4%。2018年生产试验，平均产量为8 385.9 kg/hm²，比对照郑单958增产9.7%。新单58具有高产、优质、耐密、适宜籽粒机械化收获的特点，适宜种植密度为75 000～90 000株/hm²，适合在黄淮海夏玉米区的河南省，山东省，河北省唐山市、廊坊市、保定市以及沧州市以南地区，北京市，天津市，陕西省关中灌区，山西省运城市、临汾市以及晋城市的部分平川地区，江苏省和安徽省淮河以北地区，湖北省襄阳地区作为籽粒机收品种种植。

Xindan 58 is a new maize variety bred by Xinxiang Academy of Agricultural Sciences with Xinmei 09 as the female parent and Xin 4095 as the male parent. Xindan 58 was approved by National Crop Variety Approval Committee of the Ministry of Agriculture in 2019. During 2017 and 2018,the average yield of Xindan 58 was 8 472.0 kg/ha in regional test for mechanical harvest of the national improved varieties in Huang-Huai-Hai summer maize area,which was 5.4% higher than that of the control of Zhengdan 958.In 2018,the average yield of Xindan 58 in production test was 8 385.9 kg/ha,which was 9.7% higher than that of Zhengdan 958.Xindan 58 has characteristics of high yield,good quality and high density tolerance, and was suitable for mechanized grain harvest with the planting density of 75 000—90 000 plants/ha.It is suitable to be planted as a mechanical grain harvest variety in the areas as follows:Henan Province,Shandong Province,Tangshan City,Langfang City,Baoding City and the south of Cangzhou City in Hebei Province,Beijing City,Tianjin City,Guanzhong irrigation area,Yuncheng City and Linfen City,partial plain areas of Jincheng City in Shanxi Province,north of Huai river in Jiangsu Province and Anhui Province,Xiangyang area in Hubei Province.