Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Soil Amendments with Farm Yard Manure and Poultry Manure Confer Tolerance to Salt Stress in Rice (oryza Sativa L.)

Md. Zulfiker Alam
Department of Soil Science, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Debasish Kumar Das
Department of Soil Science, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Md. Abul Hashem
Department of Soil Science, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Md. Anamul Hoque
Department of Soil Science, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

Salinity causes unfavorable environment that restricts normal crop production. Organic amendments could contribute to the improvement of crop production in coastal areas. Two rice varieties viz. BRRI dhan29 (salt-sensitive) and Binadhan-8 (salt-tolerant) were grown in replicated pots to investigate the mitigation potential of salt stress in rice by organic amendments. Two doses of farm yard manure (FYM: 5 and 10 t ha^-1) and poultry manure (PM: 4 and 8 t ha^-1) were mixed with soils before transplanting. Rice plants were exposed to different concentrations of NaCl (25 and 50 mM) at active tillering stage. Salt stress caused a significant reduction in growth and yield of both rice varieties. Salt stress also decreased reproductive growth, chlorophyll contents, K⁺/Na⁺ ratio, nutrient contents and nutrient uptake in both rice varieties. Salinity caused a significant increase in intracellular proline content in BRRI dhan29 but a decrease in Binadhan-8. Organic amendments with FYM and PM resulted in an increase in growth and yield components, chlorophyll content, K⁺/Na⁺ ratio and nitrogen uptake. No plants of BRRI dhan29 survived at 50 mM NaCl stress even after addition of FYM and PM. On the other hand, Binadhan-8 conferred tolerance to 50 mM NaCl stress when soils were amended with organic sources, suggesting that cultivation of Binadhan-8 might be profitable in saline affected areas with organic amendments. The present study suggests that organic amendments with FYM and PM confer tolerance to salinity in rice by increasing chlorophyll content, K⁺/Na⁺ ratio and N uptake.

Keywords: Organic amendments, Farm yard manure, Poultry manure, Salinity tolerance, Rice

Location: Department of Soil Science, Bangladesh Agricultural University (BAU), Mymensingh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Manures, Rice

Objectives:

To determine the soil amendments with farm yard manure and poultry manure confer tolerance to salt stress in rice (Oryza sativa L.)

Methodology:

Experimental site:The pot experiments were carried out at the net-house of the Department of Soil Science, Bangladesh Agricultural University (BAU), Mymensingh to investigate the mitigation of the adverse effects of soil salinity on the growth and yield of rice through organic amendments. Soils and pot preparation:Soils were collected from the Soil Science Field Laboratory, BAU. Each 15 L plastic pot was filled with 8 kg soil and 5 L of water. Soil was silt loam texture having pH 6.15, electrical conductivity 0.17 dS m^-1, exchangeable Na 0.35 meq 100 g^-1 soil, total N 0.11% and organic matter 1.90%. Experimental design, crops and treatments:The experiment was laid out in a completely randomized design with four replications. Two rice varieties viz. BRRI dhan29 (salt-sensitive) and Binadhan-8 (salt-tolerant) were used as test crops. Rice seedlings were transplanted in pots. FYM and PM were mixed with soils before transplanting as per treatment. Plants were exposed to different concentrations of NaCl (0-50 mM) at active tillering stage. There were eleven treatment combinations such as control (no salt added), 25 mM NaCl, 50 mM NaCl, 25 mM NaCl + 5 t/ha FYM, 25 mM NaCl + 10 t/ha FYM, 50 mM NaCl + 5 t/ha FYM, 50 mM NaCl + 10 t/ha FYM, 25 mM NaCl + 4 t/ha PM, 25 mM NaCl + 8 t/ha PM, 50 mM NaCl + 4 t/ha PM, 50 mM NaCl + 8 t/ha PM. Fertilization, management practices, crop harvesting and data recorded.Fertilization and other management practices were performed as and when required (BARC, 2012). The crops were harvested at full maturity. Plant growth, yield attributes and grain and straw yields were recorded. Assay of chlorophyll content: Chlorophyll content was measured according to Porra et al. (1989). An aliquot of green leaf of maize was suspended in 10 mL of 80% acetone, mixed well and kept at room temperature in the dark for 7 days. The supernatant was collected after centrifugation (5000 rpm) for 15 min and the absorbance was recorded at 645 nm and 663 nm in a spectrophotometer. Assay of intracellular proline contents: Proline content was measured according to the method of Bates et al. (1973). An aliquot of green leaf of rice was collected before panicle initiation and homogenized in 10 ml of 3% sulfosalicylic acid. Then the homogenate was centrifuged at 5000 rpm for 15 min (NF 800, Nuve, Turkey). Two milliliters of the supernatant were reacted with 2 ml of acid ninhydrin (1.25 g ninhydrin dissolved in 30 ml of glacial acetic acid and 20 ml of 6 M phosphoric acid) and 2 ml of glacial acetic acid for 1 hr at 100 °C and the reaction was then terminated in an ice bath. The colored reaction mixture was extracted with 4 ml of toluene and the absorbance was recorded at 520 nm. Proline content was calculated from a standard curve. Assay of N, P, K, S and Na contents: The N, P, K and S contents were measured from grain and straw samples following standard methods as described by Khanam et al. (2001). Statistical analysis: Data were analyzed statistically using analysis of variance (ANOVA) with the help of software package MSTAT-C to examine the treatment effects. The mean differences were adjudged by Duncan’s Multiple Range Test (DMRT) and ranking was indicated by letters.

Source of Information: Res. Agric. Livest. Fish. Vol. 3, No. 3, December 2016: 379-386

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Soil amendments with FYM and PM increase chlorophyll content, K⁺/Na⁺ ratio and nitrogen uptake by rice and thereby conferring tolerance to salinity. However, rice cultivation in saline areas might be profitable with organic amendment of soils. Extensive field research work is needed in this area since organic manures like FYM and PM are more available and less expensive.

Knowledge Management: Journal