Department of Botany and Microbiology, Gurukula Kangri Vishwavidyalaya, Haridwar, Uttarakhand, 249404, India.
Arch Microbiol. 2020 Nov;202(9):2461-2470. doi: 10.1007/s00203-020-01969-x. Epub 2020 Jun 30.
The present study was aimed to study the effect of bacteria inhabiting in buffalo dung on nutritional properties of soil and plant. Three beneficial bacteria Proteus mirabilis, Pseudomonas aeruginosa, and Enterobacter xiangfangensis were isolated from buffalo dung to evaluate for their effects individually as well as in consortium. The combined effect of P. mirabilis and P. aeruginosa showed a significant enhancement in different biological parameters of Foeniculum vulgare such as primary branch (99.32%), secondary branch (98.32%), number of umbels (87.62%), number of umbellets (99.85%), number of seeds (104.94%), grain yield (62.38%), biological yield (35.99%), and harvest index (19.48%). Consortium of these potent bacteria also enhanced proximate constituents such as total ash (49.79%), ether extract (63.06%), crude fibre (48.91%), moisture content (33.40%), dry matter (31.45%), acid insoluble ash (33.20%), and crude protein (40.73%). A highly significant correlation (p ≤ 0.01) was found between nitrogen (r = 0.97), phosphorous (r = 0.95), and potassium (r = 0.97) contents of soil. This research enhances the knowledge of the effect of plant growth-promoting bacteria on nutrient properties of soil and fennel which deliver a new index for healthier use in organic agricultural practices.
本研究旨在研究栖息在水牛粪便中的细菌对土壤和植物营养特性的影响。从水牛粪便中分离出三种有益细菌，即奇异变形杆菌、绿脓假单胞菌和 Xiangfangensis 肠杆菌，以评估它们各自以及联合使用时的效果。奇异变形杆菌和绿脓假单胞菌的联合作用显著提高了茴香的不同生物学参数，如一级分枝（99.32%）、二级分枝（98.32%）、伞形花序数（87.62%）、伞形花序数（99.85%）、种子数（104.94%）、粒产量（62.38%）、生物产量（35.99%）和收获指数（19.48%）。这些有效细菌的混合物还提高了总灰分（49.79%）、乙醚提取物（63.06%）、粗纤维（48.91%）、水分含量（33.40%）、干物质（31.45%）、酸不溶性灰分（33.20%）和粗蛋白（40.73%）等近似成分。土壤中氮（r=0.97）、磷（r=0.95）和钾（r=0.97）含量之间存在高度显著的相关性（p≤0.01）。这项研究提高了植物促生细菌对土壤和茴香营养特性影响的知识，为有机农业实践中更健康的使用提供了新的指标。
