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Improvement of phosphorus uptake,phosphorus use efficiency,and grain yield of upland rice(Oryza sativa L.)in response to phosphate-solubilizing bacteria blended with phosphorus fertilizer

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Pedosphere 2022年第5期32卷 752-763页

作者： Pratibha RAWAT Anita SHARMA Deepti SHANKHDHAR Shailesh Chandra SHANKHDHAR Department of Plant Physiology College of Basic Sciences&HumanitiesGovind Ballabh Pant University of Agriculture&TechnologyPantnagar-263145(India) Department of Microbiology College of Basic Sciences&HumanitiesGovind Ballabh Pant University of Agriculture&TechnologyPantnagar-263145(India)

Phosphorus(P)limitation in soil is a major concern for crop ***,the use of chemical fertilizer is hazardous to the environment and ***,the use of phosphate-solubilizing bacteria(PSB)is an eco-friendly approach for a sustainable agricultural *** the present study,a field trial was conducted for two consecutive years to study the effects of three PSB strains isolated,Bacillus licheniformis,Pantoea dispersa,and Staphylococcus sp.,with different P fertilizer rates on P uptake,P use efficiency(PUE),and grain yield of *** activities of soil enzymes were also studied in relation to PSB *** analysis of the yield and biochemical parameters revealed that inoculation of PSB consortium could reduce almost 50%of the recommended P dose in rice *** PSB strains in combination with 50%P dose was most effective and showed the highest increases in P uptake and PUE as compared to the uninoculated ***,the PSB consortium combined with 50%P dose contributed to 50.58%and35.64%yield increases compared to the uninoculated control for 2018 and 2019,*** increases in the activities of soil dehydrogenase,alkaline phosphatase,and acid phosphatase were also recorded under PSB treatment.

关键词： bacterial inoculation enzyme activity phosphate solubilization index recommended P dose soil dehydrogenase soil phosphatase

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