粪产碱菌（ Ａａｅｃａｌｉｓｆａｅｃａｌｉｓ） 在ＬＷ 培养基下能产生植物激素ＩＡＡ。盆栽结果表明，接种Ａ．ｆａｅｃａｌｉｓ 显著提高了水稻的生长，接种Ａ１５０１ 和Ａ１５１３ 的水稻稻谷产量分别比未接种提高了８５％ 和１０３ ％ ，用１５ Ｎ 同位素稀释法估测水稻地上部总氮中来源联合固氮的百分率达９００ ％ 和１１５ ％ ，其结果与水稻地上部（ 茎叶及稻谷） 总氮量的增加幅度（８６ ％ 和１１６ ％ ）基本一致。研究还表明Ａ１５１３ 耐铵工程菌的产ＩＡＡ作用以及对水稻的生长和产量、联合固氮作用均优于原始菌株Ａ１５０１ 。 Aaecalisfaecalis produces plant hormone IAA under LW medium. Potted results show that inoculation A. faecalis significantly increased the rice growth. The rice yield of rice paddies A1501 and A1513 increased by 8.5% and 103% respectively compared with those of non-inoculation, and 15N isotope dilution method was used to estimate the source of nitrogen fixation The percentages were 900% and 115%, respectively. The results were in good agreement with the increase of total nitrogen (8.6% and 116%) in shoots (stems, leaves and rice). The study also showed that the A1513 ammonium-tolerant engineering bacteria IAA role and the growth and yield of rice, combined nitrogen fixation were better than the original strain A1501.