我社东双大队七队,去年在四方地进行了高梁根外喷尿素试验,结果如下:在高粱抽穗前,每亩喷2％浓度尿素2斤,据9月22日调查,茎粗1.8厘米,亩产1,100斤,比对照茎粗多0.2厘米,每亩增产100斤,提早成熟5～7天。 Last year, we conducted a test of sorghum root exuding urea in the Quartet. The results were as follows: Before sorghum heading, 2 kg of urea was sprayed at a concentration of 2% per mu. According to a survey on September 22, the stem diameter was 1.8 cm , Yielding 1,100 kg per mu, 0.2 cm more than the control stem, 100 kg per acre yield, and 5 to 7 days early maturation.