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Preparation of Land and Soil Resources Utilization Guide, Patuakhali Sadar

Md. Nazrul Islam
Principal scientific officer (Retd)
Soil resource development institute, Head office, Dhaka.

Abstract/ Executive Summary:

The upazila comprises of 12 unions and 1 pourosavha having a population of 2,56,000 (1991). Two land types namely highland and medium highland were identified. The textural classes of soil found were clay, clay loam and loam. Four soil groups were identified. Four major cropping patterns were found in the upazila. Total 141 soil and water samples were collected and analyzed and found that the soils of the upazila are deficient in almost all essential nutrient elements except Ca, S,Mg,B, Cu, Fe and Mn and the water salinity 0.85 ds/m and 0.93 ds/m were harmful for irrigation in the month of April. The upazila comprises of highland and medium highland, so the area is suitable for Taman, Taus, rabi vegetables and other upland crops. The climate, land form and geo-morphological environment of the area are also suitable for groundnut, khesari and mungbean cultivation. Patuakhali sadar upazila was first surveyed in 1988 and updated in 2004.

Keywords: Patuakhali sadar, Land and soil, Crop suitability,Guide

Location: Patuakhali sadar upazila,Patuakhali

Start Date: 06-11-2003

End Date: 05-11-2004

Program Area: Resource Development and Management

Commodity: Land management

Objectives:

1. Soil and land resources inventory of Patuakhali sadar 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 resources utilization guide, Patuakhali sadar upazila, 2005

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Patuakhali sadar upazila is situated in the middle part of Patuakhali district. It lies under the AEZ no. 13 (Ganges tidal flood plain). In this upazila major land type recognized was medium highland comprising 74.6% of total area followed by miscellaneous land comprising 23.1% of the total area. Major textural class also identified was clay loam covering 40.8% of total area followed by clay (26.2%).Four soil groups were identified namely Jhalakathi, barisal, ramgati and silty alluvium. In medium highland jhalakathi covers major area (40.8%) while in medium highland Barisal covers major area (26.2%). According to local agro-ecology suitable crops identified were rabi vegetables,mung bean, groundnut, felon chilli, Taman, Taus etc. The area is most suitable for rabi vegetables,Taman, Taus and other upland crops . Four major cropping pattern namely Chilli/groundnut/mungbean/felon/khesari-fallow-Taman,Mungbean/khesari-Taus-Taman, Fallow-Taus-Taman, Fallow-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