Effect of Application of Plant Growth Promoting Bacteria on Yield of Rice under Reduced Chemical Fertilizers

Articles in Press

Document Type : Research Paper

Authors

1 Department of agronomy, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources

2 Ms.c. Student of Agrotechnology, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.

3 Genetics and Agricultural Biotechnology Institute of Tabarestan & Sari Agricultural Sciences and Natural Resources University, Sari, Iran

4 Department of Agronomy, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University

10.22034/saps.2024.59057.3135

Abstract

Background and Objective: The use of biofertilizers in sustainable agriculture and the production of healthy crops with higher yields in the strategic rice crop is very important. ،This research was conducted with the aim of evaluation the effect of plant growth promoting bacteria on yield and yield components of rice is in reduced amounts of chemical fertilizers.
Materials and Methods: The experiment was conducted in the form of split plot arrangement in a randomized complete block design with three replications in 2022. The treatments were two levels of chemical fertilizer (100 and 75 percent of fertilizer consumption based on the results of the soil test as optimal and reduced levels of fertilizer, respectively) and four inoculation treatments with plant growth promoting bacteria (separate inoculation of Rahnella aquatilis, Burkholderia cepacia and a co-inoculation (R. aquatilis+B. cepacia) and control (no inoculation)).
Results: According to the results, there was no significant difference between the optimal and reduced fertilizer levels in terms of the studied traits. While, the use of plant growth promoting bacteria improved the studied traits of rice compared to the control treatment (no inoculation). In other words, combined inoculation of R. aquatilis and B. cepacia, increases the height of the plant (11.3 percent), panicle length (11.6 percent), the number of total tillers per hill (29.1 percent), the total number of filled seeds in panicle (27 percent), thousand seed weight (7.9 percent), grain yield (25.2 percent), biological yield (20.6 percent),

Keywords

Main Subjects

JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION

Articles in Press, Accepted Manuscript
Available Online from 19 April 2025

Files

Share

How to cite

Statistics