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

On-station Trials of Different Fertilization Regimes Used in Bangladesh.

M. A. Wahab
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh-2202.

Y. YI
Aquaculture and Aquatic Resource Management School of Environment, Resources and Development, Asian Institute of Technology, Bangkok, Thailand.

A. A. Mon
Aquaculture and Aquatic Resource Management School of Environment, Resources and Development, Asian Institute of Technology, Bangkok, Thailand.

C. K. Lin
Aquaculture and Aquatic Resource Management School of Environment, Resources and Development, Asian Institute of Technology, Bangkok, Thailand.

J. Diana
School of Natural Resources and Environment, University of Michigan, Ann Arbor, USA.

Abstract/ Executive Summary:

An on-station trial was conducted in fourteen 100-m² earthen ponds at the Bangladesh Agricultural University, Mymensingh, Bangladesh during July-December 2001. This trial was designed to evaluate different fertilization regimes currently used for aquaculture in Bangladesh and to compare effects of different fertilization regimes on fish production, water quality and economic returns. There were five fertilization regimes for culture period as treatments: (A) PROSHIKA fertilization regime - weekly application of 100 kg cow dung per hectare (personal communication); (B) BRAC fertilization regime- weekly application of 156 kg cow dung, 28.125 kg urea and 13.1 kg TSP per hectare; (C) CARITAS fertilization regime - fortnight application of 1500 kg cow dung per hectare; (D) BAU fertilization regime- fortnight application of 1250 kg cow dung, 31.25 kg urea and 15.625 kg TSP per hectare; (E) CRSP fertilization regime developed from Nile tilapia (Oeochromis niloticus) ponds - weekly application of 250 kg cow dung (dry matter) per hectare supplemented with urea and TSP to give 28 kg N and 7 kg P/ha/wk. Six carp species used in this on-station trial were silver carp (Hypophthalmichthys molitrix), mrigal (Cirrhinus mrigala), rohu (Labeo rohita), Catla (Catla catla), grass carp (Ctenopharyngodon idella) and common carp (Cyprinus carpio) stocked at a ratio of 9:8:6:6:3:2 at stocking density of 1.02 fish/m2, giving 27, 24, 18, 18, 9, 6 fish per 100-m² pond respectively. Mean stocking sizes of carps ranged from 6.3 to 10.1 g. Among all tested fertilization regimes, CRSP fertilization regime resulted in the highest fish production, followed by BAU, BRAC, CARITAS and PROSHIKA fertilization regimes (p<0.05). The two fertilization regimes (CARITAS and PROSHIKA) using cow dung as the sole nutrient input during the culture period gave very poor fish growth performance and low production, due mainly to the low soluble nutrients derived from cow dung. The other three fertilization regimes (CRSP, BAU and BRAC) using the combinations of organic and inorganic fertilizers resulted in much higher carp production. Analysis of water quality showed that the nutrients from CRSP fertilization regime were oversupplied, due to this regime was developed in Nile tilapia monoculture with higher intensification compared to the carp polyculture in the present trial. BAU fertilization regime gave the highest profitability among all fertilization regimes, followed by BRAC and CRSP.

Keywords: Aquaculture, Fertilization regimes, Production

Location: Bangladesh Agricultural University, Mymensingh

Start Date: 01-07-2002

End Date: 30-03-2003

Program Area: Animal Health and Management

Commodity: Fertilizer

Objectives:

1. To evaluate the different fertilization regimes currently used for aquaculture in Bangladesh, 2. To compare the effects of different fertilization regimes on fish production, water quality and economic returns.

Methodology:

The present study was conducted into five fertilization regimes for culture period as treatments: (A) PROSHIKA fertilization regime (B) BRAC fertilization regime (C) CARITAS fertilization regime (D) BAU fertilization regime (E) CRSP fertilization regime. 1. Materials 2. Data collection 3. Data analysis 4. Statistical analysis

Source of Information: BAU. Bangladesh Agricultural University Research Progress, Volume 13, Proceedings of the Workshop 09-10 April 2003, Bangladesh Agricultural University Research System (BAURES), Mymensingh. Bangladesh.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It is concluded from the present study that BAU fertilization regime is the most appropriate for carp polyculture ponds in Bangladesh while CRSP fertilization regime is suitable to carp polyculture ponds with higher intensification.

Knowledge Management: Report/Proceedings