Next Article in Journal
Transcriptome Profiles of Contrasting Potato (Solanum tuberosum L.) Genotypes Under Water Stress
Previous Article in Journal
The Utility of the Upcoming HyspIRI’s Simulated Spectral Settings in Detecting Maize Gray Leafy Spot in Relation to Sentinel-2 MSI, VENµS, and Landsat 8 OLI Sensors
Open AccessArticle

Synergistic Effect of Biochar and Plant Growth Promoting Rhizobacteria on Alleviation of Water Deficit in Rice Plants under Salt-Affected Soil

1
Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
2
Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Burydah 51452, Saudi Arabia
3
National Water Research Center, Water Management Research Institute, Qalubia 13621/5, Egypt
4
Faculty of Agriculture, Tottori University, 4-101 Koyamach-minami, Tottori 6800000, Japan
5
Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12112, Egypt
6
Agronomy Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt
*
Author to whom correspondence should be addressed.
Agronomy 2019, 9(12), 847; https://doi.org/10.3390/agronomy9120847
Received: 23 September 2019 / Revised: 25 November 2019 / Accepted: 1 December 2019 / Published: 4 December 2019
(This article belongs to the Section Soil and Plant Nutrition)
Environmental stressors negatively affect crop growth and yield. Limited information is available about the synergistic use of biochar and plant growth-promoting rhizobacteria (PGPR). A field study was conducted to evaluate the effect of biochar in combination with PGPR (Pseudomonas koreensis and Bacillus coagulans) for alleviating water deficit and saline soil in rice (Oryza sativa L.). Two growing seasons, 2017 and 2018, were examined using twelve combinations of three irrigation intervals every 6 days (I1), 8 days (I2), and 10 days (I3) and four soil treatments (control, PGPR, biochar, and combination of PGPR + biochar) in salt-affected soil. The findings exhibited that synergistic use of biochar and PGPR alleviated the negative effect of these stressors. The integrative use of biochar and PGPR caused an increment in soil moisture content and physicochemical properties. Significant increasing in chlorophyll content, relative water content, stomatal conductance, K+ and K+/Na+ contents occurred with decreasing proline content and Na+ content, which confirmed the efficacy of this approach. As a result, the highest yield and its related traits were attained when biochar and PGPR were added together under irrigation interval I1, which was on par with I2. We concluded that increased nutrients uptake (N, P, and K) were the cause of the superior rice productivity resulting from co-PGPR biochar. Synergistic use of biochar and PGPR could be an effective strategy for improving plant growth and productivity under stressors. View Full-Text
Keywords: water deficit; salt-affected soil; soil moisture constants; rice; soil properties; soil amendments water deficit; salt-affected soil; soil moisture constants; rice; soil properties; soil amendments
Show Figures

Figure 1

MDPI and ACS Style

Hafez, E.M.; Alsohim, A.S.; Farig, M.; Omara, A. .-D.; Rashwan, E.; Kamara, M.M. Synergistic Effect of Biochar and Plant Growth Promoting Rhizobacteria on Alleviation of Water Deficit in Rice Plants under Salt-Affected Soil. Agronomy 2019, 9, 847.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop