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Extrapolation of Domain of a Proven Resource Conservation Technology: Crop Establishment by Chinese Hand Tractor Seeder in Rice-wheat Systems

M S Kabir
Senior Scientific Officer
Agril. Statistics Division. Bangladesh Rice Research Institute, Gazipur

D N R Paul
Chief Scientific Officer
Agril. Statistics Division, Bangladesh Rice Research Institute, Gazipur

M I U Mollah
Senior Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

A Khatun
Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

Abstract/ Executive Summary:

Extrapolation of domain of crop establishment by Chinese Hand Tractor (CHT ) seeder, a resource conservation technology in rice-wheat systems has been made using Geographic Information System (GIS) tools. Land type, slope, top soil texture. soil moisture, permeability, drainage. soil depth and soil consistency were considered for suitability of wheat crop establishment by CHT. Greater Jessore, Kushtia, Chuadanga, Rajshahi, Natore. Bogra, Dinajpur, Rangpur, Comilla and Noakhali districts and very small area in Cox's Bazar district found suitable for establishing wheat crop by CHT. Most of Bangladesh soils are moderately suitable. A gross area of suitable and moderately suitable for tilling the land with CHT was estimated as 2.17 ( 15%) and 7.46 (50%) million hectares, respectively.

Keywords: Extrapolation domain, Resouce conservation, Crop establishment, CHT, Seeder, Rice-Wheat system

Location: Chuadanga

Start Date:

End Date:

Program Area: Farm Mechanization

Commodity: Rice

Objectives:

To extrapolate the domains of CHT for establishment of wheat crop in Bangladesh based on the research findings at Chuadanga district.

Methodology:

Based on the Chuadanga study, suitability of CHT for wheat seeding, eight soil physical parameters namely, land type, slope, topsoil texture, soil moisture; permeability, drainage, soil depth and consistency were considered. The suitability scales 1-3 with I representing the most suitable and 3 not suitable was assigned to each soil characteristic in relation to the easiness in tilling the soil by CHT and suitability of the land for growing wheat. These scales were derived through consultation with the scientists working with the machine in rice-wheat research site in Chudanga. The suitability classification of the areas for wheat crop establishment using CHT was generated in several steps. All the eight soil parameters were laid as input vector themes for the model and were converted to grid themes for analysis in the Model Builder environment using AreYiew 3.2 Spatial Analyst module . A slope grid is derived from the elevation grid . In the third phase of the model, the values in the slope grid are reclassified. Step 3. All grids become the inputs to the final suitability grid. The weighted overlay function rated the values in each input grid on a numeric preference scale and assigned scale value according to individual suitability class and then weighted the relative influence of the grids relative to one another.

Source of Information: Bangladesh Rice J.12 (I&2):57-62, 2007

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Gerater Jessore, Kushtia , Chuadanga, Rajshahi, Natore, Bogra, Dinajpur, Rangpur, Camilla and Noakhali districts and very small area in Cox's Bazar district found suitable for establishing wheat crop by CHT. Most of Bangladesh soils are moderately suitable. A gross area of suitable for tilling the land with CHT was estimated as 2.17 (15%) and 7.46 (50%) million hectares, respectively.

Knowledge Management: Journal