“769”是我县通过接种、土法生产的抗菌素微生物农药。今年我社良种场用经过黑穗菌粉接种的13号大黄糜子品种搞了“769”不同浓度的防治糜子黑穗病试验。使用方法是闷种。将一斤“769”干粉分别兑水10、15、20倍,浸泡24小时,搅动几次,使抗菌素充分释出,然后过滤,按种子100斤加浸泡液10斤,均匀搅拌,使每粒种子都拌上药液,呈湿润状态,装入麻袋内闷种24小时,再晾干播种。试验结果表明,防治效果 “769” is an antibiotic microbial pesticide produced by our county through inoculation and indigenous production. This year, our community improved seed field with black spore powder inoculated No. 13 Rhubarb varieties to engage in “769” different concentrations of prevention and treatment of millet smut. How to use is boring. The pound of “769” dry powder were watered 10,15,20 times, soak for 24 hours, stir several times, the full release of antibiotics, and then filtered, according to the seeds 100 pounds plus soaking 10 pounds, stir evenly, so that each grain The seeds are mixed with liquid, was wet state, filled with sacks bored species 24 hours, then dry sowing. Test results show that the control effect