Agricultural Research Management Information System

  • Home
  • Research Summary
    • All
    • Government Organization
      • Agriculture Training Institute, Ishwardi, Pabna
      • Bangabandhu academy for poverty alleviation and rural development (BAPARD)
      • Bangabandhu Sheikh Mujibur Rahman Science & Technology University
      • Bangladesh Bureau of Statistics
      • Bangladesh Institute of Health Sciences
      • Bangladesh Institute of Tropical & Infections Diseases (BITID)
      • Bangladesh Meteorological Department
      • Bangladesh National Herbarium
      • Bangladesh Space Research and Remote Sensing Organization
      • Bangladesh Technical Educational Board
      • Barind Multipurpose Development Authority
      • Central Cattle Breeding Station
      • Department of Agriculture Extension
      • Department of Fisheries
      • Department of Livestock Services
      • Department of Youth Development
      • Dhaka Medical College
      • Geological Survey of Bangladesh
      • Institute of Epidemiology, Disease Control & Research
      • Jatiya Kabi Kazi Nazrul Islam University
      • Khulna Govt. Women College
      • Livestock Training Institute
      • Local Government Engineering Department
      • Ministry of Agriculture
      • Ministry of Environment and forest
      • Ministry of Fisheries and Livestock
      • Ministry of Labour & Employement
      • Ministry of Land
      • Ministry of Public Administration
      • Ministry of Textiles and Jute
      • Ministry of Water Resources
      • Ministry of Youth and Sports
      • National Agricultural Training Academy
      • National institute of preventive and social medicine
      • National Mushroom Development and Extension Centre
      • Pabna University of Science and Technology
      • Seed Certification Agency
      • Shaheed Suhrawardy Medical College
      • Sheikh Hasina University
      • University Grants Commission
      • Youth Training Centre
    • Autonomous/Semi-gov Org
      • Bangladesh Academy for Rural Development
      • Bangladesh Agricultural Development Corporation
      • Bangladesh Atomic Energy Commission
      • Bangladesh Council of Scientific and Industrial Research
      • Bangladesh Fisheries Development Corporation
      • Bangladesh Institute of Development Studies
      • Bangladesh Institute of Management
      • Bangladesh Milk Producers Cooperative Union Limited
      • Bangladesh Water Development Board
      • BIRDEM
      • Center for Environmental and Geographic Information Services
      • Hortex Foundation
      • Institute of Water Modeling
      • National Institute of Biotechnology
      • River Research Institute
      • Rural Development Academy
    • NARS
      • Bangladesh Agricultural Research Council
      • Bangladesh Agricultural Research Institute
      • Bangladesh Fisheries Research Institute
      • Bangladesh Forest Research Institute
      • Bangladesh Institute of Nuclear Agriculture
      • Bangladesh Jute Research Institute
      • Bangladesh Livestock Research Institute
      • Bangladesh Rice Research Institute
      • Bangladesh Sericulture Research and Training Institute
      • Bangladesh Sugarcrop Research Institute
      • Bangladesh Tea Research Institute
      • Bangladesh Wheat and Maize Research Institute
      • Cotton Development Board
      • Soil Resource Development Institute
    • Public University
      • Ahsanullah University of Science and Technology
      • Bangabandhu Sheikh Mujibur Rahman Agricultural University
      • Bangamata Sheikh Fojilatunnesa Mujib Science and Technology University
      • Bangladesh Agricultural University
      • Bangladesh Open University
      • Bangladesh University of Engineering and Technology
      • Bangladesh University of Professionals
      • Bangladesh University of Textiles
      • Barisal Government Veterinary College
      • Begum Rokeya University
      • Chittagong University of Engineering and Technology
      • Chittagong Veterinary and Animal Science University
      • Comilla University
      • Dhaka University of Engineering & Technology
      • Dinajpur Government Veterinary College, Dinajpur
      • Gono Bishwabidyalay
      • Hajee Mohammad Danesh Science and Technology University
      • Islamic University, Kushtia
      • Jagannath University
      • Jahangirnagar University
      • Jessore University of Science and Technology
      • Jhenaidha Government Veterinary College
      • Khulna Agricultural University
      • Khulna University
      • Khulna University of Engineering & Technology
      • Mawlana Bhashani Science and Technology University
      • Millitary Institute of Science and Technology
      • National University
      • Noakhali Science and Technology University
      • Patuakhali Science and Technology University
      • Rajshahi University of Engineering and Technology
      • Shahjalal University of Science & Technology
      • Sher-e-Bangla Agricultural University
      • Sylhet Agricultural University
      • Sylhet Government Veterinary College
      • University of Barisal
      • University of Chittagong
      • University of Dhaka
      • University of Rajshahi
    • Private University
      • Asian University of Bangladesh
      • Atish Dipankar University of Science and Technology
      • BGC Trust University Bangladesh
      • BGMEA University of Fashion & Technology (BUFT)
      • BRAC University
      • City University
      • Daffodil International University
      • East West University
      • Exim Bank Agricultural University
      • Gana Bishwabiddalaya
      • Hamdard University
      • Independent University, Bangladesh
      • International Islamic University Chittagong
      • International University of Business Agriculture and Technology
      • Islamic University of Technology
      • Leading University, Sylhet
      • North South University
      • Premier University
      • Primeasia University
      • Private University
      • SOAS, University of London
      • Southeast University
      • Stamford University
      • State University of Bangladesh
      • The Millenium University
      • University of Asia Pacific
      • University of Development Alternative
      • University of Information Technology and Sciences
      • University of Liberal Arts Bangladesh
      • University of Science and Technology, Chittagong
      • World University
    • INGO/IO/NGO/Private Org
      • ACI Limited
      • Agricultural Advisory Society (AAS)
      • Apex Organic Industries Limited
      • Arannayk Foundation
      • Bangladesh Academy of Sciences
      • Bangladesh Centre for Advanced Studies
      • Bangladesh Institute of Social Research
      • Bangladesh Science Foundation
      • Bangladesh Unnayan Parishad
      • BAPA
      • BRAC
      • CARE Bangladesh
      • CARITAS
      • Centre for Environmental Geographical Information System
      • Centre for Policy Dialogue (CPD)
      • Creative Conservation Alliance
      • Dhaka Ahsania Mission
      • Dwip Unnayan Sangstha
      • EMBASSY OF DENMARK, BANGLADESH
      • Energypac Limited Bangladesh
      • FAO- Bangladesh
      • FIVDB
      • ICDDRB, Mohakhali, Dhaka-1212
      • iDE Bangladesh
      • Innovision Consulting Private Ltd.
      • International Center for Climate Change and Development
      • International Centre for Integrated Mountain Development
      • International Development Research Centre
      • International Fertilizer Development Center, Bangladesh
      • International Food Policy Research Institute
      • International Maize and Wheat Improvement Centre
      • International Potato Center
      • IRRI- Bangladesh
      • IRRI-Philippines
      • Ispahani Agro LTD
      • IUCN, Bangladesh
      • Krishi Gobeshina Foundation
      • Lal Teer
      • Mennonite Central Committee
      • Metal (Pvt.) Ltd
      • Modern Herbal Group
      • Palli Karma-Sahayak Foundation
      • Practical Action Bangladesh
      • Proshika
      • RDRS Bangladesh
      • RIRI-Philippines
      • Rothamsted Research
      • SAARC Agricultural Centre
      • SAARC Meteorological Research Centre
      • Social Upliftment Society
      • South Asia Enterprise Development Facility
      • Square Pharmaceuticals Ltd.
      • Supreme Seed
      • Transparency International Bangladesh
      • Unnayan Onneshan
      • USAID
      • Water Resources Planning Organization
      • Winrock International
      • World Bank
      • World Food Program
      • World Vegetable Center
      • WorldFish Centre, Bangladesh
    • Foreign University
      • Asian Institute of Technology
      • Auckland University of Technology
      • Australian National University
      • Bidhan Chandra Krishi Viswavidyalaya
      • BOKU-University of Natural Resources and Applied Life Sciences
      • Cranfield University
      • Curtin University
      • Foreign University/ Institute
      • Hiroshima University
      • Hokkaido University
      • Huazhong Agricultural University
      • International Islamic University, Malaysia
      • Kagawa University
      • Kangwon National University
      • Kochi University
      • Kyoto University
      • Kyushu University
      • Ladoke Akintola University of Technology
      • Murdoch University
      • Nagoya University
      • NOAA-CREST, CCNY
      • Royal Veterinary and Agricultural University
      • San Diego State University
      • Shinshu University
      • Tottori University
      • United Nations University
      • University Malaysia Kelantan
      • University Malaysia Pahang
      • University Nova de Lisboa
      • University of Alberta
      • University of Bremen
      • University of Bremen
      • University of Calgary
      • University of california
      • University of Greenwich
      • University of Hamburg, Hamburg
      • University of Hannover
      • University of Hawaii
      • University of Helsinki, Finland
      • University of Kalyani
      • University of Leeds
      • University of Liverpool
      • University of Malaya
      • University of Milan
      • University of New England
      • University of Philippines
      • University of Plymouth
      • University of Queensland
      • University of Reading
      • University of Southampton
      • University of Texas
      • University of the Punjab
      • University of Tokyo
      • University of Toronto
      • University of Wales
      • University of Washington
      • University of Wollongong
      • University Putra Malaysia
      • University Sains Malaysia
  • Search
    • Search by Keyword
    • Search by Organization
    • Search by Program Area
    • Search by Commodity/Non-commodity
    • Search by Funding Source
    • Search by Researcher
    • Custom Search
    • On-going Research
  • About Us
    • ARMIS
    • Brochure
  • Contact Us
    • BARC Personnel
    • ARMIS Personnel
    • Feedback
  • Report
    • All
    • By Organization
      • Bangladesh Agricultural Research Council
      • Bangladesh Agricultural Research Institute
      • Bangladesh Fisheries Research Institute
      • Bangladesh Forest Research Institute
      • Bangladesh Institute of Nuclear Agriculture
      • Bangladesh Jute Research Institute
      • Bangladesh Livestock Research Institute
      • Bangladesh Rice Research Institute
      • Bangladesh Sericulture Research and Training Institute
      • Bangladesh Sugarcrop Research Institute
      • Bangladesh Tea Research Institute
      • Bangladesh Wheat and Maize Research Institute
      • Cotton Development Board
      • Soil Resource Development Institute
    • Research Trend Analysis
  • 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

  1. Home
  2. Research
  3. Detail
S. M. Billah*
Soil Science Discipline, Khulna University, Khulna 9208, Bangladesh

J. C. Joarder
Soil Science Discipline, Khulna University, Khulna 9208, Bangladesh

F.S. Papy
Soil Science Discipline, Khulna University, Khulna 9208, Bangladesh

The experiment was conducted in the Soil Science Discipline, Khulna University, Bangladesh during July to December of 2009 to observe the influence of green manure on chemical properties (pH, CEC, EC, N, P, K, S, Ca, Mg, Zn, B, C:N ratio, organic matter) of Bajoa soil series. The experiment was laid out in a completely randomized design with three replications. The experiment comprised six treatments viz., control (no green manure) and five green manure crops varieties namely pigeon pea (Cajanus cajen), green gram (Vigna radiate) common bean (Phaseolus vulgaris), cowpea (Vigna unguiculata), yard long bean (Vigna sesquipedalis). EC (4.04 to 4.42 dS m-1 ) and CEC (26.07 to 35.93 cmole/kg), organic matter (4.77 to 5.27 %) and the macro and micro nutrients such as N (0.115 to 0.124 %), P (7.2 to 12.6 μg g-1), K (0.37 to 0.42 meq/100g), S (29.92 to 51.47 μg g-1), Ca (14.0 to 19.0 meq/100g), Mg (5.24 to 5.73 meq/100g) and B (0.37 to 0.75 μg g-1) and Zn (0.54 to 0.87 μg g-1) were found due to the application of green manure crops. Organic matter and carbon are increased by green manure crop incorporation which eventually initiates CEC enhancement. Moreover, it was found that cowpea (Vigna unguiculata) green manure initiates more effective result than that of other treatments.

  Bajoa soil series, Green manure, Green manure crops, Chemical properties of soil.
  Soil Science Discipline, Khulna University, Bangladesh
  00-07-2009
  00-12-2009
  Crop-Soil-Water Management
  Dhaincha, Physico-Chemical

Soil productivity is an important concern for farmers. Green manuring with legumes is gaining popular to improve soil productivity. Almost any crop can be used for green manuring but legumes are preferred because of their ability to fix nitrogen from the air and used as a soil building practice that adds organic residues, conserves and recycles plant nutrients. It can also be planted as a part of crop rotation during the growing season . This study was designed to analyze the status of soil nutrients and EC, pH, CEC from incorporated five green manure corps (Bajoa soil series) and to know which one is suitable to use and its contribution to improve soil properties.

Pot experiment was conducted to observe the effects of green manures on the chemical properties of soil. The seived soil was well mixed with a shovel in 18 pots. Pots were filled with five kilogram soil up to 12 cm of the top and soil moisture was maintained at approximately field capacity (0.33 g water g soil -1 ) by weighing individual pots and replacing lost water when necessary and room temperature was maintained uniform during the experiment.

Pot experiment and location of sampling: A long-term pot experiment was initiated at Soil Science Discipline, Khulna University, Khulna, Bangladesh during 2009. It was laid out with five treatments including control have three replication. Each pot was 12 cm by length and 8 cm by wide. The experimental soil from Bajoa soil series (Typic Endoaquepts ) had pH 8.67, electrical conductivity 2.76 dS m-1 , total nitrogen 0.094%, phosphorus 6.5µg/g soil, potassium 0.27 meq/100g soil, sulfur 26.88µg/g soil, boron 0.36µg/g soil, calcium 10 me/100g, magnesium 5.03me/100g, zinc 0.47µg/g soil, cation exchange capacity or CEC 23.73 meq/100g . 

Cultivation and application of Green manure crops: Five green manure crops were pigeon pea (Cajanus cajen), mung or green or golden gram (Vigna radiate), common bean (Phaseolus vulgaris), cowpea (Vigna unguiculata), yard long bean (Vigna sesquipedalis) were grown in five pots. One pot was used as control experiment where no green manure crop was grown. 10 gm seeds were broadcasted in each pot to a loosely tilled, fine seed bed for satisfactory germination during the last week of September 2009. Shallowly seeds were incorporated with garden rake and leaf rake to a depth of 0.25 to 0.75 inch deep. After 7 days of seedlings establishment plants were allowed to grow for 30 days. Before incorporation green manure crops were cut and same amount of green manure crops (300g) from each pot was measured by an electrical balance to ensure nutrient release from each experiment from same amount of green manure application at the flowering stage. The green manure crops were thoroughly mixed to the soil by a shovel; soil was watered daily for hastening decomposition and was kept for 3 weeks for proper decomposition.

Collection of soil samples: Green manure crops were well mixed to the soil for three weeks. After three weeks the color of the soil was changed and there was not a portion of fresh plants that means the plants were completely decomposed. Soil samples were then collected from each pot including control for laboratory analyses.

Preparation of Soil Samples: The collected soil samples were air dried by spreading on separate sheet of papers after it was transported to the laboratory. The larger aggregates of the samples were broken gently by crushing it with a wooden hammer. A portion of the crushed soils was sieved with a 2.0 mm sieve. The chemical analyses of these collected soil samples were carried out in the laboratories of the Soil Science Discipline, Khulna University. Khulna and SRDI, Dhaka.

Soil chemical Analysis: Soil pH was determined electrochemically with the help of a glass electrode pH meter as suggested by Jackson (1962). The electrical conductivity of the soil was measured at a soil: water ratio of 1: 5 by the help of EC meter (USDA, 2004). The CEC of the soils were determined by extracting the soil with 1N KCL (pH, 7.0) followed by the replacing the potassium in the exchange complex by 1 N NH4OAc. The displaced potassium was determined by a flame analyzer at 589 nm wavelength (Jackson, 1962). Organic carbon of soil sample was determined by Walkley and Black’s wet oxidation method as outlined by Jackson (1962). Organic matter was calculated by multiplying the percent value of organic carbon with the conventional van-Bemmelene’s factor of 1.724 (Piper, 1950). Total nitrogen of the soil was determined by Micro-Kjeldahl’s method following H2SO4 acid digestion as suggested by Jackson (1962). 

Total content of Zn of the sample was determined by Atomic Absorption Spectrophotometer (Jackson, 1962), after digestion with HNO3: HClO4 (2: 1) acid mixture. The available K was determined from NH4OAc. (pH, 7.0) extract as described by Jackson (1962). The extract was analyzed for available K by a flame analyzer at 589 nm wavelength (Jackson, 1962). Available Phosphorus was extracted from the soil with 0.5 M NaHCO3 (Olsen’s Method) at pH 8.5 and Molybdophosphoric blue colour of analysis was employed for determination of phosphorus (Jackson, 1962). Available sulfur content was determined by turbidimetric method as described by (Jackson, 1962). It was measured by spectrophotometer at 420 nm wavelength. The available Ca and Mg were determined from NH4OAc. (pH 7.0) extract as described by Jackson (1962). The contents of Ca and Mg were measured by atomic absorption spectrophotometer. Available Boron was determined by hot water method using buffer solution and Azomethine Solution on Perkin-Elmer Lambada 11 (2.2) UV/VIS spectrometer at 420nm wavelength (Jackson, 1962).

Statistical analysis: This experiment was designed as completely randomized design with three replications. Data were subjected to a one factor (different green manure treatment) analysis of variance (ANOVA) to determine if the materials mineralized differently with several green manures with F test at 5% and 1% level of significance with the statistical package of MINITAB. Statistical mean values of different treatment were tested using independent Student t-tests at 5% and 1% level of significance and not to correlate the different soil properties (Table 2 and Table 3) (Ryan et al., 1985).

  Khulna University Studies Volume 10 (1&2) : 211-216 : June-December 2010
  
Funding Source:
1.   Budget:  
  

The exchangeable bases N, P, K, S, Ca, Mg, B and Zn are increased by the incorporation of green manure because it increases available nutrients in soil by initiating a more acidic condition in root zone and root exudation. Therefore, pH is decreased because acidity reduces pH. Green manures soak up potentially-leachable nutrients thus tightening up the on-farm nutrient cycle and add organic matter and other nutrients by its decomposition. The nutrients are then held by the green manure until it is turned under. During decomposition, the nutrients will be released to the following crop (Biswas and Mukherjee, 1991). C:N ratio of green manure varied from 19.78 to 29.62 and average 34.94 value was observed in control experiment. Nitrogen was also fixed from Rhizobia bacteria as a process of nodulation in root system (Piper, 1950). Organic matter enhancement eventually initiates CEC enhancement. C: N ratio was less than 25:1 because more N is found by green manure application. It is more suggestive that extra time of decomposition are often more effective to release nutrients from complex organic compounds to labile form. Basically, more nutrients are usually released in the next cropping season (Hunter et al., 1997). When green manure is choosing to grow, then the more functions the green manure can perform the better which are more ideal for cultivation. Research showed that cowpea (Vigna unguiculata) green manure initiates more effective result than other treatments

  Journal
  


Copyright © 2025. Bangladesh Agricultural Research Council.