近年来,增产菌已在河北、山东等10多个省市大面积推广应用,增产效果显著,因此,1989年我们和地区科协共同从北京农业大学引进增产菌并在吴忠市马家湖乡田桥村进行了试验、示范,均取得较好的增产效果,现将试验结果报告如下. In recent years, increased production of bacteria has been in Hebei, Shandong and other large cities more than 10 provinces and cities to promote the use of large-scale production, the effect is significant, so in 1989 we and the Regional Association for Science and Technology from Beijing Agricultural University to introduce bacteria and Wuzhong Ma Jiahu Township Tian Qiaocun conducted a trial, demonstration, have achieved better yield results, the test results are reported as follows.