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Updating of Upazila Soil and Land Resource Utilization Guide, Ramgati Upazila, Laksmipur

Khondker Moyeenuddin
Senior Scientific Officer
Soil Resource Development Institute District Office, Noakhali

Md. Mahbubur Rashid
Scientific Officer
Soil Resource Development Institute District Office, Noakhali

Abstract/ Executive Summary:

This Upazila consists of 1 municipality and 12 unions having 29 mauzas. Whole Upazila is under a single physiographic unit- Meghna Estuarine Floodplain. The Upazila is sub-divided into 9 mapping unit depending mainly on land type and soil type proportions. Predominant area of the Upazila is medium high land (68.5%) while higland is only 0.3% which are situated mainly around homestead. Loam soils predominate (68.4%) in the Upazila while clay loam covers only 0.4%. Ramgati soil covers 56.7% of total area, Nilkamal soil covers 11.4% area. Hatiya soil covers only 0.4% area. Water recedes within Agrahayan from 67.8% area, within Kartik from 0.7% area and within Ashwin from 0.3% area. So timely rabi crops cultivation is possible only in limited area. About 68.5% area of the Upazila is poorly drained while intermittently drained area is only 0.3%. Rabi vegetables-Kharif vegetables; Rabi crops-T.Aus-T.Aman; Rabi crops-Fallow-T.aman; Fallow- T.aus-T.Aman; Fallow-Fallow-T.Aman are the main cropping patterns. T.Aman is the predominant crop covering 70% of the cultivated area. Deficiency of N, P, K, Zn & B is observed in the Upazila. Ground water is saline so there is little scope use it for irrigation. Farmers have to depend on rain water as well as surface water for irrigation.

Keywords: Soil and land resource, Field survey, Land use, Crop suitability Guide

Location: Ramgati Upazila, Laksmipur distrcit

Start Date: 01-05-2007

End Date: 31-12-2008

Program Area: Resource Development and Management

Commodity: Land management

Objectives:

1.Update soil and land resource inventory

2.Update soil analytical data base

3.Update land use/ land cover data base

4.Update crop suitability based on changed soil and land qualities

5.Update soil fertility status/value based fertilizer recommendation for crops/cropping patterns following latest FRG of BARC

Methodology:

Aerial Photo-interpretative soil and landform map (1:25,000) Ramgati Upazila is prepared using remote sensing and GIS technique. The map consists of several mapping units comprising physiography, landform, land type, soil type and their proportion in a particular mapping unit. Field survey is carried out in Rabi season after the harvest of T.Aman. Soils are checked by digging mini-pits along the catena following a traverse line so as cover maximum variability. Composite soil samples are collected following approved technique. In total 170 soil samples were collected from the Upazila for laboratory analysis. Data on crops/cropping patterns, inundation depth and duration, fertilizer/irrigation application are recorded for each checking point by interviewing the farmers. Map is corrected after field survey by accommodating changed features. Physical and chemical data are processed and guide is prepared.

Source of Information: Upazila Land and Soil Resource Utilization Guide, Ramgati Upazila, Laksmipur

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 30,000.00

Total Budget (Tk.) : 30,000.00

Achievement/Findings:

The total area of Ramgati Upazila is under a single physiographic unit- Meghna Estuarine Floodplain covering an area of 48,358 hectares. Upazila is sub-divided into 9 mapping unit depending mainly on land type and soil type proportions. Homestead area covers 31.2% of the Upazlia. Predominant area of the Upazila is medium high land (68.5%) while higland is only 0.3% which are situated mainly around homestead. Loam soils predominate (68.4%) in the Upazila while clay loam covers only 0.4%. Ramgati soil covers 56.7% of total area, Nilkamal soil covers 11.4% area. Hatiya soil covers only 0.4% area. Water recedes within Agrahayan from 67.8% area, within Kartik from 0.7% area and within Ashwin from 0.3% area. So timely rabi crops cultivation is possible only in limited area. About 68.5% area of the Upazila is poorly drained while intermittently drained area is only 0.3%. Rabi vegetables-Kharif vegetables (0.3%); Rabi crops-T.Aus-T.Aman (47.2%); Rabi c rops-Fallow-T.aman (10.4%); Fallow- T.aus-T.Aman (1.4%); Fallow-Fallow-T.Aman(8.5%) are the main cropping patterns. T.Aman is the predominant crop covering 70% of the cultivated area. Soybean, mungbean, groundnut and chilli are main rabi crops. Deficiency of N, P, K, Zn & B is observed in the Upazila. Ground water is saline so there is little scope use it for irrigation. Farmers have to depend on rain water as well as surface water for irrigation. Provisions may be made to harvest rain water and preserve for future use.

Knowledge Management: Report/Proceedings