“多功能精量排种器”的研制是陕西省重点科技攻关项目,1997年8月通过陕西省农机质量检测鉴定站的质量检测(陕鉴[1997]第011号),1999年8月通过陕西省科委的成果鉴定(陕科鉴定[1999]第098号),鉴定认为,该排种器属国内首创,达国内领先水平,并获国家专利(Z199202267.3)。2002年获宝鸡市 The development of “multi-functional precision seed metering device” is a key science and technology project in Shaanxi Province. It passed the quality inspection of Shaanxi Provincial Agricultural Machinery Quality Inspection and Appraisal Station (Shaanxi Certification [1997] No. 011) in August 1997 and passed in August 1999 Identification of the results of the Shaanxi Provincial Science and Technology Commission (Shaanxi Branch Identification [1999] No. 098), appraisal that the planter is a domestic initiative, up to the leading domestic level, and won the national patent (Z199202267.3). In 2002 by Baoji City