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经不同农药处理４ ｈ 时，水稻联合固氮菌菌株ＮＧＨ１１１ 和ＥＨ１１１３ 存活率在４８．１％～５９．４％ 范围内，活菌的浓度大于１０９／ｍ Ｌ。用８ 种除草剂处理联合固氮工程菌（简称工程菌菌剂），存活率分别为３０．２％ ～８３．７％ 。在液体菌剂中加４％ 甘油，于室温条件下保存２ 个月，存活率为１０％ ，活菌数达１０８／ｍ Ｌ。固体菌剂以草炭为介质，先于２８℃培养４～５ ｄ，后置４℃保存３ 个月，存活率为５０％ ，活菌数达１０９／ｇ。
After 4 h treatment with different pesticides, the viability of the combination of nitrogen-fixing bacteria strains NGH111 and EH1113 was in the range of 48.1% -59.4%, and the viable cell concentration was more than 109 / m L. With 8 kinds of herbicides treatment of combined nitrogen fixation engineering bacteria (referred to as engineering bacteria agent), the survival rates were 30.2% ~ 83.7%. Add 4% glycerol to the liquid inoculum and store at room temperature for 2 months with 10% viability and a viable count of 108 / m L. The solid fungi used peat as the medium, cultured at 28 ℃ for 4 ~ 5 days and stored at 4 ℃ for 3 months, with a viability of 50% and a viable count of 109 / g.