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Agrochemical Use and Extent of Environmental Contamination in Bangladesh: a Review

A. A. Hassan
Chief Scientific Officer and Head, Agricultural Engineering Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh.

N. N. Karim
Scientific Officer, Agricultural Engineering Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh.

Abstract/ Executive Summary:

The overall use of agro-chemicals (pesticides and fertilizer) is relatively low, but their use is increasing. The present use of pesticide would be sufficient for 22% of the Net cropped Area (NCA). An average of 161 g active ingredient (AI) and 880g product was used per hectare in 1991-92. The product used are mostly organo-phosphorous and carbamate pesticides. The use of synthetic pyrethroid is increasing but use of organo-chlorine pesticides is decreasing. On a national level, the sales of fertilizer showed that there is relatively low rate of application considering the high intensity of cropping. On average, a total amount of 100 kg/ha fertilizer is used. Regarding contamination, there is no evidence of accumulation of pesticides in the environment. The presence of nitrates (25 mill) in groundwater is far below the standard (45-60 mg/l) of groundwater. Monitoring of groundwater, surface water and farm produce is warranted to check the accumulation of pesticides and fertilizer in the environment.

Keywords: Agro-chemicals (pesticides and fertilizer), Contamination, Groundwater, environment

Location: Agricultural Engineering Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Start Date: 01-01-1997

End Date: 31-12-1997

Program Area: Pest Management

Commodity: Contamination

Objectives:

To review agro-chemical use and extent of environmental contamination.

Methodology:

Information on Organo-chlorine (Heptachlor 40 WP) , Organo-phosphorous (Basudin 10GR), Carbamate (Furadan 5G), and Synthetic pyrithroid (Ripcord 10 EC) which are the major pesticides were collected from the different sources. Information on amount of pesticide sold between 1982 and 1992 were collected from where percent increase use of pesticide delineated. According to the FAO data, fertilizer consumption in Bangladesh increased from 20 kg/ha in 1973 to 101 kg/ha in 1990 (fertilizer consumption was 79.6 kg/ha in 1987).

Source of Information: Bangladesh J. Agri. Engg. 9 (1&2): 61 -70; 1998

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The use of synthetic pyrethroid is increasing but use of organo-chlorine pesticides is decreasing. On a national level, the sales of fertilizer showed that there is relatively low rate of application considering the high intensity of cropping. On average, a total amount of 100 kg/ha fertilizer is used. Regarding contamination, there is no evidence of accumulation of pesticides in the environment. The presence of nitrates (25 mill) in groundwater is far below the standard (45-60 mg/l) of groundwater. Monitoring of groundwater, surface water and farm produce is warranted to check the accumulation of pesticides and fertilizer in the environment.

Knowledge Management: Journal