宁夏研制成功除草尿素除草尿素是宁夏农林科学院植物保护研究所研制开发的。在１９９２年～１９９３年进行不同品种和不同剂量的小区药效和配方筛选试验基础上，１９９３年～１９９４年列为自治区科技兴农项目并进行试制生产和较大面积示范，取得良好的除草效果。该除草尿... Ningxia successfully developed weeding urea weed urea is a plant protection Institute of Ningxia Academy of Agriculture and Forestry developed. On 1992-1993, based on the community efficacy test and formula selection test of different varieties and different doses, from 1993 to 1994, it was listed as autonomous region science and technology to promote agriculture project and trial production and large area demonstration, and achieved good weeding effect . The herbicidal urine ...