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Preparation of Upazila Land and Soil Resource Guide, Sarail, Brahmanbaria

Md. Jalal Uddin
Scientific Officer
SRDI, Comilla

Abstract/ Executive Summary:

Sarail Upazila is situated in the northern part of Brahmanbaria district. It lies between 24º00´ and 24º11´ north latitude and 90º59´ and 91º15´ east longitude and covers an area of 21,530 ha. It lies in the physiography of Old Meghna Estuarine Floodplain (AEZ 19), Middle Meghna River Floodplain (AEZ 16) and Sylhet Basin (AEZ-21). The upazila comprises of 9 unions having a population of 271,102 (2001). Five land types namely highland, medium highland, medium lowland, lowland and very lowland were identified. The textural classes were sand, sandy loam, loam, clay loam and clay. Eleven soil groups were identified. Total 92 soil samples were collected and analyzed. It was found that soils of this upazila are deficient in N, P, K, S, Zn and B. Water-logging in a considerable area hinders agricultural development. Thirteen cropping patterns were found in the upazila. Fertilizer recommendations for suitable crops are given. Sarail upazila was first surveyed in 1995 and updated in 2009.

Keywords: Sarail upazila, Land types, Soil groups, Cropping patterns,Guide

Location: Sarail Upazila, Brahmanbaria

Start Date: 01-01-2008

End Date: 30-05-2009

Program Area: Crop-Soil-Water Management

Commodity: Land management

Objectives:

1. Land and soil resources inventory of Sarail Upazila

2. Soil fertility assessment and fertilizer recommendation.

3. Crop suitability assessment.

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

Methodology:

Field survey was conducted on the basis of semi-detailed soil survey method. Interpretative soil and landform map was prepared using 1:50,000 aerial photographs. Soils were investigated following a catena and composite top soil samples were collected. The sampling frequency were 1 (one) sample per 200 ha, although more samples were taken wherever necessary according to complexity of soils. During survey crops, cropping patterns, soil management data were collected by physical observations and interviewing the farmers. Soil samples were analyzed for fertility assessment. Crop suitability for each land type was determined. Fertilizer recommendations for suitable crops were made. Final soil and landform map was made from the interpretative field map through verification by ground truthing and field checks. 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, Sarail Upazila, Brahmanbaria, 2009, SRDI, Dhaka-1215.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 150000

Total Budget (Tk.) : 150000

Achievement/Findings:

Major land types recognized were medium highland (17.99%), medium lowland (26.89%), lowland (16.8%), very lowland (18.96%). Major textural classes identified loam (26.31%), clay loam (34.14%) and clay (19.26%). Major soil groups identified Chandina, Debidar, Burichang, Fuldi, Balaganj, Nasirnagar, Fagu, and Titas. Suitable crops were Boro rice, T. & B. Aus rice, T. Aman rice, Deep-water Aman, sugarcane, rabi cotton, rabi maize, wheat, chhola, masur, mustard, rabi soybean, rabi groundnut, potato, rabi vegetables, rabi chilli, tomato, cabbage, cauliflower, bitter gourd, patal, sasa, mango, jackfruit, coconut, betelnut. Major cropping patterns were Boro rice-Fallow (F)-F (34.45%); Boro rice-F-T.Aman rice; Mastard-Boro-F; and Rabi crops-F-T. Aman/B. Aman rice. Fertilizer recommendations for 47 existing and potential crops of the upazila at high and medium yield goals and for 89 crops at high yield goal are given. Soils of this upazila are deficient in N, P, K, S, Zn and B. Water-logging in a considerable area hinders agricultural development. This guide can be used for determining flood, drought, water-logging and soil erosion. Demonstration site selection for technology transfer can be done with the help of this guide. Upazila land and soil resource's carrying capacity can be estimated which would help in determining food deficit or surplus situation.

Knowledge Management: Report/Proceedings