Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Fertility Status of Some Selected Soil Series of Bangladesh

M.A. Mukta
Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh

M.K. Islam
Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh

M.S. Hossin
Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh

M.S.I. Majumder
Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh

M.J.A. Mian
Department of Soil Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

This research work was conducted to evaluate the soil fertility status of five soil series: Noadda-1, Noadda-2, Kalma, Amnura and Pritimpasa. A remarkable variation was observed among soil series in respect of soil physical and chemical properties. The textural classes of most of the soil series was silt loam. The particle density ranged from 2.03 to 2.24 g cm-3. The highest value of particle density was found in Amnura soil series and the lowest value was found in Noadda-2 and Pritimpasa soil series due to very low organic matter content. The soils were acidic in reaction (pH ranged from 5.08 to 5.77). The organic matter content ranged from 1.20 to 1.75%. Soils of all series were found to be deficient in total N with a range of 0.08 to 0.10%. The available phosphorus, potassium, sulphur content of soils ranged from 3.18 to 16.80ppm, 0.13 to 0.27 meq/100g soil and 2.90 to 15.90 ppm, respectively. The nutrients present in the soils were low to medium level.

Keywords: Soil series, Soil physical and chemical properties, Soil fertility

Location: Noadda-1, Noadda-2, Kalma, Amnura and Pritimpasa,

Start Date: 00-01-2012

End Date: 00-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Soil fertility

Objectives:

1. To study the physical and chemical properties of selected soil series of Bangladesh and to obtain information related to the nutrient status of those soils.

Methodology:

A laboratory study was carried out in the Department of Soil Science, Bangladesh Agricultural University, Mymensingh in order to examine the fertility status of different kinds of soils collected from five soil series of Bangladesh. Selection of soil series: The soil series were identified in most of the cases with the help of expert personnel from Soil Resource Development Institute (SRDI). Collection and preparation soil samples: A number of five composite soil samples were collected from farmer’s fields of five different soil series emphasizing the rice based cropping pattern from different areas of Bangladesh covering various combinations of soil (e.g. Piedmont plain soil, terrace soil etc.) and land type. At first fifteen (0-l5 cm depth) soil samples were collected from each location by means of an auger. The collected soil samples were carried to the laboratory; air dried and ground to pass through 2-mm sieve. Composite samples were prepared by mixing the sieved 15 samples. Analyses of different properties of soil: The soil properties were studied are: (A) Physical properties: (i) Soil texture, (ii) Particle density; (B) Chemical properties: (i) Soil pH, (ii) Organic matter, (iii) Total nitrogen, (iv) Available phosphorus, (v) Exchangeable potassium and (vi) Available sulphur. Soil texture: Determination of soil texture was carried out by hydrometer method.The percentage of sand, silt and clay were calculated by the formula: 1. % (Silt + Clay) = [{(Corrected hydrometer reading after 40 seconds) / (Dry weight of soil)} 9x 100]; 2. % Clay = [{(Corrected hedrometer reading after 2 hours) / (Dry weight of soil)} x 100] ; 3. % Sand = {100 - % (Silt + Clay)}; 4. % Silt = {% (Silt + Clay) - % Clay}. The textural classes of soil were then determined by plotting the results on a triangular diagram designed by Marshall (1947) following USDA system. Particle density: Particle density was determined by volumetric flask method. The particle density was determined by using the formula: Particle density (Dp) = (Ws / Vs) g/cm3; Where, Ws= Weight of the soil in “g", VS = Volume of soil solid in "cm³”. Soil pH: Soil pH was determined by glass electrode pH meter as described by Jackson. The soil and water ratio was 1:2.5. Organic matter: Organic carbon of the soil samples was determined by wet oxidation method and the organic matter was calculated by multiplying percent organic carbon with the conventional Van Bemmelen factor of 1.73. Total nitrogen: Total N content in soil was determined by micro-kjeldahl digestion method. Catalyst mixture (K₂SO₄: CuSO₄. 5H₂O: Se =10:1:0.l) and 30% H₂O₂ and conc. H₂SO₄ were used for digesting soil sample. Estimation of N in the digest was done by distillation with 40% NaOH followed by titration of the distillate trapped in H₃BO₃ with 0.01 N H₂SO₄. Available phosphorus: Available phosphorus was extracted from the soil by using 0.5 M NaHCO₃ solution at a pH 8.5. The phosphorus in the extract was then determined by developing blue colour using SnCl₂ and then measured colorimetrically with the help of spectrophotometer at 660 nm wave lengths. Exchangeable potassium: Exchangeable potassium was determined by ammonium acetate extraction method. Soil samples were extracted by 1N NH₄OAc solution. The concentration of potassium in the extract was determined with the help of flame photometer and standard curve prepared from standard solution of potassium of different concentration. Available sulphur: Available sulphur was determined by calcium chloride (0.15%) extraction method.The concentration of sulphur in the extract was determined by forming turbid using acid seed solution and barium chloride solution and then measured with the help of spectrophotometer at 420 nm wave length.

Source of Information: J. Agrofor. Environ. 7 (2): 131-133, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

A remarkable variation was observed among soil series in respect of soil physical and chemical properties. The textural classes of most of the soil series was silt loam. The particle density ranged from 2.03 to 2.24 g cm^-3. The highest value of particle density was found in Amnura soil series and the lowest value was found in Noadda-2 and Pritimpasa soil series due to very low organic matter content. The soils were acidic in reaction (pH ranged from 5.08 to 5.77). The organic matter content ranged from 1.20 to 1.75%. Soils of all series were found to be deficient in total N with a range of 0.08 to 0.10%. The available phosphorus, potassium, sulphur content of soils ranged from 3.18 to 16.80ppm, 0.13 to 0.27 meq/100g soil and 2.90 to 15.90 ppm, respectively. The nutrients present in the soils were low to medium level.

Knowledge Management: Journal