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Preparation of Upazila Land and Soil Resource Guide, Pirojpur Sadar

Md. Mainul Ahsan
Director (retd)
Soil resource development institute, Dhaka

Abstract/ Executive Summary:

Pirojpur upazila lies between 22^o22 and 22^o42 north latitude and 89^o53 and 90^o03 east longitude and covers an area of 27845 ha. It lies in the physiographic unit of13 (Ganges tidal floodplain). The upazila comprises of 10 unions and 1 pouroshava having a population of 2,25,206 (1991). Three land types namely highland, medium highland and medium low land were identified. The textural classes of soil found were clay, clay loam and loam. Six soil groups were identified. Eight major cropping patterns were found in the upazila. Total 54 soil samples were collected and analyzed and found that the soils of the upazila are deficient in almost all essential nutrient elements except Ca,S,B, Mg, Cu, Fe and Mn. The upazila comprises of highland and medium highland and medium low land, so the area is suitable for rice, rabi vegetables and other upland crops. Pirojpur sadar upazila was first surveyed in 1994 .

Keywords: Pirojpur sadar, Land and soil, Soil fertility, Crop suitability

Location: Pirojpur sadar upazila, Pirojpur

Start Date: 05-12-1994

End Date: 04-12-1995

Program Area: Resource Development and Management

Commodity: Land management

Objectives:

1. Soil and land resources inventory of pirojpur Upazila.

2. Soil fertility assessment and fertilizer recommendation.

3. Crop suitability assessment.

4. Preparation of land and soil resource utilization guide with soil and land form map.

Methodology:

Field survey was conducted on the basis of semi-detailed soil survey method. Interpretative soil and land form map was prepared using 1:50000 aerial photographs. Soils were investigated following a catena and composite top soils were collected. The sampling frequency was 1 (one) sample per 200 ha. During survey, crops, cropping pattern, soil management data were collected by interviewing the farmers. Soil samples were analyzed for fertility assessment. Crop suitability for each land type was determined. Fertilizer recommendation for suitable crops was made. After compiling physical and chemical data sets the land and soil resource utilization guide was prepared.

Source of Information: Land and Soil Resource utilization Guide, Pirojpur sadar upazila, 1997

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Pirojpur sadar upazila is situated in the western part of Pirojpur district. It lies under the AEZ no. 12,13 (Ganges floodplain, ganges tidal floodplain). In this upazila major land type recognized was medium highland comprising 80.5% of total area followed by medium low land comprising 10.9% of the total area. Major textural class also identified was clay covering 48.6% of total area followed by clay loam (23.7%). Six soil groups were identified namely Barisal, jhalakathi,ramgati,muladi,sara, mahendigong, In medium highland barisal covers major area (44.2%) while in medium highland Jhalakathi covers major area (23.3%). According to local agro-ecology suitable crops identified were chilli, khesari,mungbean rabi vegetables, Taman, Taus, boro etc. The area is most suitable for Taman, rabi vegetables and other upland crops.Five major cropping pattern namely Rabi crops-Taus-Taman,Fallow-Taus-Taman, Fallow-fallow-Taman, Rabi crops-fallow-Taman,boro-Fallow-Taman were identified. Fertilizer recommendation for suitable crops is given in the guide. The guide can be used for determining flood and drought, salinity, soil erosion, river bank erosion affected area. Demonstration site selection for technology transfer and local level development planning can be done with the help of this guide. Upazila land and soil resources carrying capacity can be estimated which would help in determining food deficit or surplus of the area.

Knowledge Management: Report/Proceedings