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

Effects of Rice Straw and Sulphur on the Growth and Yield of Rice

S.A. Hague
Department of Soil Science, Bangladesh Agricultural University, Mymensingh

L. Chowdhury
Department of Soil Science, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

A field experiment was carried out to investigate the effects of the addition of rice straw and S on the growth and yield of a high-yielding variety of rice (BRRI dhan30) under flooded conditions and on post-harvest soil. The experiment was undertaken on an Old Brahmaputra Floodplain silt loam soil at BAU farm. The soil was characterized by mild acidic in reaction and in general poor in nutrient status. The treatments used in the experiment were (1) Control (-S), (2) Rice straw @ 6 t had, (3) S @ 20 kg S had and (4) Rice straw @ 6 t had and S @ 20 kg S had. Gypsum was used as the source of S. Basal fertilizers, such as urea @ 70 kg N, TSP @ 17.5 kg P, MOP @ 33.2 kg K and ZnO @ 3 kg Zn per hectare were applied along with gypsum at the time of transplanting of rice seedlings. Nitrogen was applied in three equal splits, at transplanting, maximum tillering and panicle initiation stage. The treatments were laid out in a completely randomized block design with three replications of each treatment. The test crop used was HYV rice, BRRI Dhan 30.

Dry matter yield of rice plants significantly increased at both maximum tillering and panicle initiation stage in treatment with rice straw and S applied together. There were significant increases in all yield contributing attributes of the crop except, 1000-grain weight in both rice straw and S treatments over control. Grain and straw yields of rice significantly increased due to the application of rice straw and S together with over the control treatment. Grain yield increase's were 11.90, 19.76 and 25.95% in rice straw, S and rice straw and S (together) treatments respectively over the control. treatment. The application of rice straw slightly decreased soil pH, while it significantly improved organic matter content, total N, exchangeable K and available S in post-harvest soil.

Keywords: Rice straw, Sulphur, Crop yield, Post-harvest soil

Location: Old Brahmaputra Floodplain silt loam soil at BAU farm, Mymensingh

Start Date:

End Date:

Program Area: Chemical Analysis

Commodity: Sulphur, Rice straw

Objectives:

Management of crop residues, particularly that of rice should be considered as a means of reducing the S requirement of a cropping system. The turnover of S from crop residues has become increasingly important for maintaining supplies of S to the plant, where other inputs of S to the soil-plant system such as fertilizer and atmospheric S decrease. Therefore, a field experiment was carried out to investigate the effects of the addition of rice straw, S and rice straw and S together on the growth and yield of BRRI Dhan 30 under flooded conditions and changes on post-harvest soil.

Methodology:

The experiment was carried out at Bangladesh Agricultural University farm, Mymensingh under the `Sonatola' soil series, which belonged to the Old Brahmaputra Floodplain agro-ecological zone. The experiment was conducted in the Aman season (July-November) of 2000. The soil was characterized by silt loam in texture with pH 6.8, organic matter content 2.75%, CEC 12 m.e.%, total N 0.17%, available P 11.0 ppm, exchangeable K 0.15 m.e.%, available S 8.0 ppm, and available Zn 1.11 ppm.

Treatments used in the experiment were (1) Control (-S), (2) Rice straw @ 6 t ha-1, (3) S @ 20 kg S ha-1, and (4) Rice straw @ 6 t ha-1 and S @ 20 kg S ha-1. Gypsum was used as the source of S. Basal fertilizers such as urea @ 70 kg N, TSP @ 17.5 kg P, MOP @ 33.2 kg K and ZnO @ 3 kg Zn per hectare were applied along with gypsum at the time of transplanting of rice seedlings. Nitrogen was applied in three equal splits, at transplanting, maximum filtering, and panicle initiation stage. The treatments were laid out in a completely randomized block design with three replications of each treatment. The test crop used was HYV rice, BRRI Dhan 30.

Source of Information: J. Bangladesh Agril. Univ. 2(1): 15-18,2004 ISSN 1810-3030

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Knowledge Management: Journal