ABSTRACT

The performance of a selected microbial consortia (Rhizophagus fasciculatus, Azotobacter chroococcum, Bacillus coagulans and Trichoderma harzianum) on Dalbergia sissoo Roxb. ex DC. was investigated through large-scale nursery trials at three locations in the Mandya district of Karnataka state, India. At each nursery, 500 microbial consortia inoculated seedlings and 500 uninoculated seedlings were raised. The mean plant biovolume index and dry biomass of inoculated seedlings raised in three large-scale nursery trials were 42% and 39% higher, respectively, compared to uninoculated seedlings 180 days after sowing. Forty randomly selected inoculated and 40 uninoculated seedlings from each nursery were planted in wasteland at three locations, and their growth was monitored for nearly 6 years. The mean biovolume index of inoculated trees planted in the three wastelands was 136% higher compared to uninoculated trees 73 months after planting. Thus, the study shows inoculation with the selected microbial consortia that improves the growth of Dalbergia sissoo in the nursery and also when planted in degraded wasteland.

摘要

选定微生物群落（Rhizophagus fasciculatus、Azotobacter chroococcum、Bacillus coagulans和Trichoderma harzianum）对Dalbergia sissoo 的表现罗克斯 前直流。通过在印度卡纳塔克邦曼迪亚地区的三个地点进行的大规模苗圃试验进行了调查。在每个苗圃，培养了 500 株微生物菌群接种的幼苗和 500 株未接种的幼苗。与播种后 180 天的未接种幼苗相比，在三个大规模苗圃试验中培育的接种幼苗的平均植物生物量指数和干生物量分别高出 42% 和 39%。从每个苗圃随机抽取40株接种苗和40株未接种苗在荒地的3个地点种植，并对其生长进行近6年的监测。在种植 73 个月后，种植在三个荒地中的接种树木的平均生物体积指数比未接种树木高 136%。因此，Dalbergia sissoo在苗圃和种植在退化的荒地时。