NifTAL Project, University of Hawaii, 1000 Holomua Avenue, Paia, Hawaii 96779.
Appl Environ Microbiol. 1990 Nov;56(11):3298-303. doi: 10.1128/aem.56.11.3298-3303.1990.
The nitrogen-fixing effectiveness of multistrain inoculants was found to be determined by both the effectiveness of the component strains and the percentage of the nodules occupied by them. Multistrain formulations were always either as good as the most effective single-strain inoculant or intermediate between the most and the least effective. The percentage of nodules occupied and the amount of nitrogen fixed by the component strains of a multistrain inoculant showed highly significant linear correlation. The availability of soil N had a significant influence on the nitrogen fixation potential of each strain. The mineral N status of the soil was clearly a significant factor in affecting the competition pattern of Rhizobium loti (chick-pea) and Bradyrhizobium japonicum strains. Differences between the effectiveness of strains were masked under conditions of soil N availability. However, when soil N was immobilized with sugarcane bagasse, the differences became significant. In the chick-pea system, R. loti TAL 1148 (Nit 27A8) was the most effective but not the most competitive of the three strains used. In the soybean and dry bean systems, B. japonicum TAL 102 (USDA 110) and R. leguminosarum bv. phaseoli TAL 182, respectively, were consistently the most effective and, more often than not, the most competitive of the strains used for each species.
多菌株接种剂的固氮效果取决于组成菌株的有效性和它们所占据的根瘤的百分比。多菌株配方总是要么与最有效的单菌株接种剂一样好，要么介于最有效和最无效之间。多菌株接种剂中各组成菌株所占据的根瘤百分比和固定的氮量之间存在高度显著的线性相关性。土壤氮的有效性对每个菌株的固氮潜力有显著影响。土壤的矿质氮状况显然是影响豌豆根瘤菌（鹰嘴豆）和大豆根瘤菌菌株竞争模式的重要因素。在土壤氮供应条件下，菌株有效性之间的差异被掩盖了。然而，当用甘蔗渣固定土壤氮时，差异变得显著。在鹰嘴豆系统中，R. loti TAL 1148（Nit 27A8）是三种菌株中最有效的，但不是最具竞争力的。在大豆和干豆系统中，B. japonicum TAL 102（USDA 110）和 R. leguminosarum bv. phaseoli TAL 182 分别是最有效的，而且在大多数情况下，它们也是最具竞争力的。
