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A Study on Two Rubber Producing Soils of Chittagong

K. Anam
Department of Soil Science, University of Dhaka

Dr. S. M. lmamul Huq
Professor
Department of Soil Science, University of Dhaka

A. Aziz
Department of Soil Science, University of Dhaka

M. Ahmed
Department of Soil Science, University of Dhaka

Abstract/ Executive Summary:

Study of some chemical properties of Ramu and Raozan rubber gardens were done. Influence of topography, climatic conditions and local effects on the growth of the Hevea and latex production were also studied. A possible means for the management of the gardens has been suggested.

Keywords: Rubber, Rubber procuding, Soil, Climatic conditions, Garden

Location: Two rubber gardens of Ramu and Raozan areas of Chittagang district

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rubber wood

Objectives:

To make an on the spot survey of the conditions of the gardens as it relates to its management practices,
To see the influence of topography, climatic conditions and local effects, on the growth of the Hevea and latex production ;
To evaluate the nutrient status by chemical methods and correlate it with crop growth, and
To suggest a possible means of the physical management of the gardens .

Methodology:

Six soil samples of the two rubber gardens were included in the study. The soils represented tow depths (0-6” and 0-12") which varied in their physical and chemical properties. Mechanical analysis was done by hydrometer method as outlined by Piper (1966) an d the texture was determined by the U.S.D.A. (1951) method; pH of the soils was determined by a corning glass- electrode pH meter at a soil: water ratio of 1 : 2.5; organic carbon by wet-oxidation method; nitrogen by microkjeldahl distillation method; phosphorus by using a Coleman Junior II spectrophotometer after the development of blue colour in chlorostannous-reduced molybdophosphoric blue colour method in HCI system; potassium by using a EEL flame photometer and Ca and Mg by EDTA titration. Total iron was determined calorimetrically by developing re d colour with orthophenanthroline and manganese by developing pemmananate colour with potassium periodate.

Source of Information: Bangladesh Journal of Soil Science. 14: 161-168, 1978.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Research and experience in other countries growing rubber have shown that the growth and yield of rubber can be maximized by discriminate use of fertilizers. This objective can fully be achieved if the nutrient status of the soils is known. The nutrient status of a soil depends very much on its chemical properties. Soils with different chemical properties generally differ in their ability to supply nutrients to the plants. Hence, similar responses to fertilizer treatments would be unlikely for plants grown on different soils. Chemical methods are used for the evaluation of nutrient status of soils. Generally more than one methods are used for the purpose. Six different methods of extraction were used in the evaluation of the nutrient status of the two rubber gardens of Ramu and Raozan.

Knowledge Management: Journal