在1973～1975年间,我们先后和上海郊区十个县三十多个单位协作,进行了一系列的田间对比和盆钵等试验,取得了较系统的试验数据,现经整理分析总结如下。 (一) 三年肥效试验结果证明:三麦使用钾细菌肥(加吸附剂堆制,或钾菌肥加吸附剂直接使用)作基肥或拌种;油菜使用钾菌粉冲水浇根或菌液沾根,均有一定的增产作用。三麦五十个试验田块,五十九个试验处理, From 1973 to 1975, we worked with more than 30 units in 10 suburb counties in Shanghai suburb to conduct a series of experiments such as field comparison and pot experiment, and obtained more systematic experimental data. The conclusions are as follows. (A) Three years of fertilizer test results show that: Sanmai use of potassium bacterial fertilizer (plus adsorbent pile system, or potassium fertilizer and adsorbent directly used) as a base fertilizer or seed dressing; rape use potassium powder washed with watering roots or bacteria Liquid dip root, have a certain increase in production. Fifty trials of three wheat fields, fifty-nine experimental treatment,