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为提高根瘤菌剂的使用效果,改进接种技术,将溶化的阿拉伯树胶与菌剂混合,再与碳酸钙拌和,制成球化种子,可提高根瘤菌的接种回收率(见《上海农业科技》1982年第2期)。此后,我们又进一步对球化种子作抗逆性试验,结果如下: 一、试验方法 (一)耐干旱试验:用抗链霉素硫酸盐的紫云英根瘤菌菌株S_(52)接种制成球化种子,以等量菌液拌菌的种子为对照,分别与经过灭菌的水分为田间持水量5％、21％和41％的土壤拌和,装瓶密封,以防水分蒸发,于26℃保存,在0、2、7、11和14天后测定每粒种子上的活菌数。测定方法:取球化种
In order to improve the effect of rhizobia, improve the inoculation technology, mix the melted gum arabic with the fungicide and then mix with the calcium carbonate to make the spheroidized seeds, which can increase the recovery rate of rhizobia (see “Shanghai Agricultural Science and Technology” 1982 No. 2). After that, we further tested the resistance of the spheroidized seeds. The results are as follows: I. Test Methods (I) Drought-tolerant Test: Inoculated with Streptomyces viridini strain S 52 against streptomycin sulfate Spheroidized seeds were mixed with the same amount of bacteria mixed seed germ control, respectively, with the sterilized water field capacity of 5% water, 21% and 41% of soil mixing, bottled sealed to prevent moisture evaporation, at 26 C and viable counts on each seed were determined after 0, 2, 7, 11 and 14 days. Determination: Take ball species