Effects of Biofertilizers Combined with Different Soil Amendments on Potted Rice Plants

Abstract

This pot study investigated the effect of the combined application of two commercial biofertilizers viz. Biopower and EM (Effective Microorganisms) on rice (Oryza sativa L.) growth and yield in soils amended with farmyard manure, green manure, and NPK fertilizers. Biopower is a product of the Nuclear Institute for Biotechnology and Genetic Engineering (NIBGE), Pakistan, which contains species of associative and endophytic diazotrophs. EM (effective microorganisms), a product developed by Japanese scientists, consists of co-existing beneficial microorganisms, mainly species of photosynthetic and lactic acid bacteria, as well as yeast. Applying Biopower adversely affected plant growth and yield in NPK fertilizer amendment. Conversely, this biofertilizer markedly enhanced plant growth and yield in green manure amended soil while its effect was not significant in farmyard manure amendment. In green manure amendment, applying EM enhanced grain yield by 46%. Co-inoculation of Biopower and EM evidently improved root and shoot growth in farmyard manure amended soil. This study concludes that the two biofertilizers clearly enhanced shoot biomass and grain yield in green manure amended soils.

Transformation of Biomass Waste into Sustainable Organic Fertilizers

“…The shoot biomass increased in all growth stages when biofertilizers were applied in the green manure amendment, while increase in the shoot biomass for farmyard manure amendment was observed at the final growth stage. As for the grain yield, biofertilizer use on NPK fertilizer amendment showed a 55% reduction in grain yield, whereas a 99% increase was obtained with green manure amendments, indicating the beneficial effects of these biofertilizers by combining the use of suitable soil amendment, particularly green manure amendments [15]. Another study on the growth response of coffee plant using organic manure showed significant proportional growth.…”

Fertilization with beneficial microorganisms decreases tomato defenses against insect pests

“…The aims of this study were therefore to test whether a commercial organic microbial soil inoculum (effective microorganisms; EM; Higa and Parr 1994) are able to firstly, increase crop yields as previously shown for other systems (e.g., Javaid 2006Javaid , 2011Javaid and Bajwa 2011a, b), and secondly, simultaneously improve plant resistance to herbivore attack ( Fig. 1a, b).…”

Incorporated Use Impact of Organic, Bio and Mineral Fertilizers on Potato (Solanum tuberosum. L) Productivity and Quality

“…The bacteria also contribute to increase the concentration of plant hormones in plants, which improve the growth of the root system, and thus increase their absorption of mineral elements and their accumulation in plants. The use of biological fertilization as a substitute for mineral fertilization also contributed to increase soil fertility and to improve the rate of plant growth and productivity, moreover raising its content of mineral elements NPK as well as its contribution to improving other soil properties (Wu, et al, 2005) When adding biofertilizers to the potato plant, they gave taller plants and tubers of greater average weight (Mbouobda et al, 2014) and contributed to increasing plant height and plant biomass as well as improving root growth (Javaid and Mahmood, 2010;javaid, 2011 andDadashzadeh et al, 2013) Due to the fact that potato plants need large quantities of nutrients (Abdel Salam and Shams, 2012), and because of the high prices of mineral fertilizers and their transportation costs, the focus in recent years has been towards the use of biological fertilizers as they are inexpensive nutrients sources, as they work to fix nitrogen by using soil inoculation with bacterial strains as well as they working as a stimulant for plant growth, which constitutes a positive role in increasing the rate of growth and quantity of production and improving the quality of tubers. So, the main objective of this research is initiated to test the effect of organic and bio-fertilizer on potato plant productivity.…”