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

Effectiveness of Prilled Urea and Urea Super Granule on Rice Production in the Eastern Surma Kushiyara Floodplain Soils

M A Aziz*
Department of Soil Science, Sylhet Agricultural University Sylhet-3100, Bangladesh

M S Hossain
Department of Soil Science, Sylhet Agricultural University Sylhet-3100, Bangladesh

M M Haque
Senior Scientific Officer, Sylhet Agricultural University Research System, Sylhet Agricultural University, Sylhet3100, Bangladesh

K M Salahuddin
Public Relation Officer, Sylhet Agricultural University, Sylhet-3100, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the farmer’s field Alampur, Sylhet to investgate the effect of prilled urea (PU) and urea super granule (USG) on rice during transplanted aman season. Three doses (50, 75 and 100 kg ha^-1) of nitrogen from PU and USG including a control (no N added) were tested in the Randomized Complete Block Design. The test variety was BRRI dhan31. PU was applied into three equal splits e.g. 1/3rd at basal, 1/3rd at maximum tillering stage and the remaining 1/3rd at panicle initiation stage while USG was applied at deep placed at 10 days after transplanting (DAT). USG at 75 kg N ha^-1 produced the highest grain yield. The highest total N uptake and N use efficiency were recorded in treatment T4 (USG 75 kg N ha^-1). The highest net benefit was also observed in treatment T4 (USG 75 kg N ha^-1). Therefore, it can be concluded that USG (75 kg N ha^-1) is more suitable for rice cultivation.

Keywords: USG, Rice production, Eastern Surma Kushiyara floodplain

Location: Alampur, Sylhet

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Rice

Objectives:

The main objective of this study was to observe the effect of PU and USG for the Eastern Surma Kushiyara Floodplain.

Methodology:

The study was conducted at farmer’s field Alampur, Sylhet. The study area is situated in the Eastern Surma and Kushiyara floodplain. The region has broad ridges and basins. Annual maximum temperature is 33.2^oC and minimum is 13.5^oC, annual rainfall 3334 mm. Soils of the area are predominantly clay to sandy clay loams on the ridges and sandy in the basin. General soil types predominantly include dark yellowish soil. Organic matter content is low on the ridge and moderate in the basin, top soils are moderately acidic but sub soils are neutral in reaction. General soil fertility level is low ( BBS, 2005). Soil texture, pH, organic matter, available P, S & Zn and exchangeable K were determined following standard methods (Black, 1965; Jackson, 1962; Olsen et al. 1954; Page et al. 1982; Walkley and Black, 1935). There were seven treatment combinations viz. T1 = Control (No), T2 = USG deep-placement @ 50 kg N ha^-1, T3 = PU @ 50 kg N ha^-1, T4 = USG deep-placement @ 75 kg N ha^-1, T5 = PU @ 75 kg N ha^-1, T6 = USG deep-placement @ 100 kg N ha^-1, T7 = PU @ 100 kg N ha^-1. Other fertilizer doses on soil test bases were 18 kg P, 36 kg K and 13 kg S ha^-1 and was applied as TSP, MP and gypsum respectively. BRRI dhan31 was used as test crop. The experiment was laid out in a randomized complete block design with three replications having unit plot size of 5 m × 6 m. TSP, MP and gypsum were applied at final land preparation. USG deep-placement would be done at 40 cm distance in every alternate row at 10 DAT. Urea was applied into three equal splits, 1/3 basal, 1/3rd maximum tillering stage and the remaining 1/3rd at panicle initiation stage. Necessary intercultural operations were done as and when required. At maturity, the crop was harvested from 5 m² and grain yield was adjusted to 14% moisture content. The plant height, tiller, panicle, filled grain and sterile grain production and grain & straw yield were recorded. Finally economic analyses were done for net benefit.

Source of Information: J. Sylhet Agril. Univ. 1(1):35-38, 2014 ISSN: 2308-1597

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

USG deep-placement @ 75 kg N ha^-1 appeared to be the economically most effective treatment of this experiment and also produced higher yield than that of USG broadcast and application of PU. USG deep-placement is better than broadcast and prilled urea. USG is a new technology which requires extensive and repeated training to extension worker and farmers.

Knowledge Management: Journal