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Preparation of Upazila Land and Soil Resource Guide, Mymensigh Sadar

Abdul Aziz
Senior Scientific Officer
Soil Resourses Development Institute, District office, Mymensingh

Abstract/ Executive Summary:

Mymensingh Sadar upazila lies between 24^o38’ and 24^o54’ north latitude and 90^o12’ and 90^o31’ east longitude and covers an area of 37,763 ha. It lies in the physiographic unit of Old Brahmaputra Floodplain,New Brahmaputra Floodplain & Active Brahmaputra Floodplain. The upazila comprises of 14 unions having a population of 674,452 (2001). Four land types namely highland, medium highland, medium lowland, and low land were identified. The textural classes were sandy, sandy loam, loam, clay loam and clay. Fourteen soil groups were identified. Fourteen major cropping pattern were found in the upazila. Total 173 soil samples were collected and analyzed. It was found that the soils of Old Brahmaputra Floodplain area are deficient in N, P and K; soils of New Brahmaputra Floodplain area are deficient in N and P and soils of Active Brahmaputra Floodplain area are deficient in all essential nutrients. In each union vegetables, rice, wheat or annual crops like banana and papaya can be successfully cultivated. Mymensingh Sadar upazila was first surveyed in 1991 and updated in 2008.

Keywords: Mymensingh Sadar , land and soil, soil fertility crop suitability

Location: Mymensingh Sadar upazila,Mymensingh

Start Date: 01-11-2008

End Date: 31-10-2009

Program Area: Crop-Soil-Water Management

Commodity: Land management

Objectives:

1. Land and soil resources inventory of Mymensingh 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 catenate and composite top soil samples were collected. The sampling frequency were 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, Mymensingh Sadar upazila, Mymensingh, 2008.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Mymensingh Sadar upazila is situated in the midle-western part of Mymensingh district. It lies under the AEZ No. 7 (Active Brahmaputra-Jamuna Floodplain) AEZ No. 8 (Young Brahmaputra & Jamuna Floodplain) and AEZ No. 9(Old Brahmaputra Floodplain ). In this upazila major land type recognized was highland comprising 32.7% of total area followed by medium highland comprising 34.3% of the total area. Major textural class also identified was loam covering 53.76% of total area followed by clay loam (16.35%) and clay (5%). Fourteen soil groups were identified namely, Nakla, Sherpur, Sonotala, Tarakandha, Silmondi, Lokdeo, Ghatail, Ghorargaon, Balina, Mohonganj,Melandhah,Dhamrai, Brahmaputra silty alluvium, and Brahmaputra sandy alluvium. In highland and medium highland Sonatola covers major area. According to local agro ecology suitable crop identified were jute(deshi,tosa),Boro rice(morden/local), transplanted aus rice(morden/local), broadcast aus rice(morden/local), transplanted aman rice(morden/local), maize, wheat, cabbage, cauliflower, mustard, brinjal(rabi), mango, jackfruit, coconut. Potato, onion, garlic,mungbean, watermelon, pineapple and banana were identified as moderately suitable. Among fourteen cropping patterns, six major cropping patterns namely Banana/Papaya/Betel leaf; Potato,Cabbage,Cauliflower-Bitter gourd,Snake gourd; Wheat- Fallow-Transplanted Aman (TA); Boro-Fallow-TA; Fallow-Fallow-TA; Boro-Fallow-Fallow were identified. Fertilizer recommendation for suitable crops are given in the guide. This guide can be used for determining flood, drought, landslide, soil erosion, river bank erosion. 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