Enrichment of indigenous blue—green algal population in rice fields and evaluation of its effect in rice culture

1996 ◽  
pp. 159-167
Author(s):  
M. A. Hashem ◽  
M. R. Islam ◽  
M. Jahiruddin ◽  
M. Asaduzzaman
Keyword(s):  
Rice Fields ◽  
Algal Population ◽  
Rice Culture ◽  
Green Algal

scholarly journals Investigation on the Nitrogen Fixing Cyanobacteria (BGA) in Rice Fields of North-West Region of Bangladesh. III: Filamentous (Heterocystous)

2015 ◽  
Vol 6 (1) ◽  
pp. 253-259
Author(s):  
MA Hasan
Keyword(s):  
Distribution Pattern ◽  
Agricultural Land ◽  
Rice Fields ◽  
Atmospheric Nitrogen ◽  
Nitrogen Fixing ◽  
North West ◽  
Blue Green Algae ◽  
Green Algal ◽  
West Region ◽  
Growth Promoting

The experiment was conducted to carry out the nitrogen fixing cyanobacterial (BGA) resources and their distribution pattern in rice fields of North-West region of Bangladesh during the period of 2011. Considering the vast importance of Blue-green algae (BGA) in agricultural land especially in rice fields, their twelve months long systematic was undertaken. A total of 10 genera with 37 species of filamentous-heterocystous blue-green algal forms were identified and recorded from this region. Out of 37 species, 9 species belonging to the genus Anabaena, 8 to Nostoc, 5 to Cylindrospermum, 4 to Calothrix, 3 to Rivularia, 3 to Gloeotrichia and 2 to Aulosira; while 1 species belonging to each genus of Anabaenopsis, Microcheate and Aphanizomenon. The distribution pattern of filamentous-heterocystous BGA in rice fields over the study area has also been observed in this study. With few exceptions, the filamentous-heterocystous BGA are more or less uniformly distributed all over the study areas. All of the BGA members have a tremendous ability to contribute on enhancing agricultural production by fixing atmospheric nitrogen and adding organic matter, vitamins, growth promoting substances etc to the soil and crops.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22075 J. Environ. Sci. & Natusral Resources, 6(1): 253-259 2013

scholarly journals Investigation on the Nitrogen Fixing Cyanobacteria (BGA) in Rice Fields of North-West Region of Bangladesh. I: Nonfilamentous

2013 ◽  
Vol 5 (2) ◽  
pp. 185-192 ◽  
Author(s):  
MA Hasan
Keyword(s):  
Distribution Pattern ◽  
Agricultural Land ◽  
Rice Fields ◽  
Nitrogen Fixing ◽  
Systematic Observation ◽  
North West ◽  
Blue Green Algae ◽  
Green Algal ◽  
West Region ◽  
Growth Promoting

The experiment was conducted to carry out the nitrogen fixing cyanobaterial (BGA) resources and their distribution pattern in rice fields of North-West region of Bangladesh during the period of 2011. Considering the vast importance of Blue-green algae (BGA) in agricultural land especially in rice fields, twelve months long systematic observation was undertaken. A total of 15 genera with 42 species of non-filamentous (unicellular and colonial) blue-green algal forms were identified and recorded from this region. Out of 42 species, 9 species belonging to the genus Aphanocapsa, 8 to Chroococcus, 5 to Gloeocapsa, 4 to Aphanothece, 3 to Gloeothece, 3 to Merismopedia and 2 to Coelosphaerium; while 1 species belonging to each genus of Chroococcidiopsis, Synechococcus, Synechocystis, Dactylococcopsis, Microcystis, Myxosarcina, Hydrococcus and Xenococcus. The distribution pattern of non-filamentous BGA in rice fields over the study area has also been observed in this study. With few exceptions, the non-filamentous BGA are more or less uniformly distributed all over the study areas. All of the BGA members have a tremendous ability to contribute on enhancing agricultural production by fixing atmospheric nitrogen and adding organic matter, vitamins, growth promoting substances etc to the soil and crops.DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14812 J. Environ. Sci. & Natural Resources, 5(2): 185-192 2012

Ecology of deepwater rice-fields in Bangladesh 4. Nitrogen fixation by blue-green algal communities

Hydrobiologia ◽  
1988 ◽  
Vol 169 (1) ◽  
pp. 43-56 ◽  
Author(s):  
J. A. Rother ◽  
Abdul Aziz ◽  
N. Hye Karim ◽  
B. A. Whitton
Keyword(s):  
Nitrogen Fixation ◽  
Rice Fields ◽  
Deepwater Rice ◽  
Algal Communities ◽  
Green Algal

Blue-green algal flora on the rock surface of temples and monuments of India

1999 ◽  
Vol 110 (1-2) ◽  
pp. 133-144
Author(s):  
P. Tripathy ◽  
A. Roy ◽  
N. Anand ◽  
S. P. Adhikary
Keyword(s):  
Rock Surface ◽  
Algal Flora ◽  
Green Algal

SPIRITUAL ISLAM SUNDA DALAM TRADISI HAJAT SOLOKAN

1970 ◽  
Vol 9 (1) ◽  
pp. 98-112
Author(s):  
Imam Setyobudi
Keyword(s):  
Empirical Evidence ◽  
Ecological Systems ◽  
Rice Fields ◽  
Religious Values

This article is the ethnographic notes on leutik Hajat Solokan, aritual ceremony of farmers in Babakan Dago, Rancakalong district,Sumedang West Jawa. This ceremony reflects wisdom values, such asprotecting and maintaining ecological systems which supports their mainjobs, cultivating rice fields. This article provides empirical evidence aboutculture system which packing religious values in order to make it sturdyand stay longer. The writer also found acculturation among some religiousvalues, Hinduism, Chinese, and Islam.

Pengaruh Konversi Lahan terhadap Strategi Pemanfaatan Modal Nafkah Rumah Tangga Buruh Tani

2020 ◽  
Vol 4 (3) ◽  
pp. 407
Author(s):  
Hesti Prastiwi ◽  
Martua Sihaloho
Keyword(s):  
Qualitative Data ◽  
Rice Fields ◽  
Livelihood Strategies ◽  
Quantitative Approach ◽  
Survey Method ◽  
Land Conversion ◽  
Literature Study ◽  
Irrigated Rice ◽  
Sustainable Food ◽  
The Impact

Lahan merupakan salah satu sumber daya agraria yang sangat penting bagi petani dikarenakan lahan merupakan salah satu sumber untuk bertahan hidup. Sesuai dengan Undang-Undang Dasar Nomor 41 Tahun 2009 tentang Perlindungan Lahan Pertanian Pangan Berkelanjutan. Pembangunan yang terjadi di Indonesia semakin masif, menimbulkan konversi lahan bersifat permanen ketika lahan sawah beririgasi berubah menjadi kawasan pemukiman atau industri. Konversi lahan yang terjadi menyebabkan hilangnya beberapa atau seluruh modal nafkah yang ada. Perubahan modal nafkah ini akan mengakibatkan perubahan strategi nafkah petani. Penelitian ini bertujuan untuk menganalisis dampak konversi lahan terhadap strategi nafkah dan pengaruh pemanfaatan  modal nafkah  terhadap strategi nafkah rumah tangga. Lokasi penelitian ini yaitu Desa Pasirgaok, Kecamatan Rancabungur, Kabupaten Bogor. Metode yang digunakan untuk menggali fakta, data, dan informasi dalam penelitian adalah pendekatan kuantitatif melalui metode survei dengan kuesioner yang didukung oleh data kualitatif melalui wawancara dan studi literatur hingga diperoleh hasil bahwa dampak konversi lahan mempengaruhi modal dan strategi nafkah.Kata Kunci: buruh tani, konversi lahan, modal nafkah, strategi nafkah=====ABSTRACTLand is one of the most important agrarian resources for farmers because land is one source of livelihood survival. According to Constitution Number 41 Year 2009 on concerning The Protection of Sustainable Food Agriculture. The development that is taking place in Indonesia is increasingly massive leading to permanent land conversion when technical irrigated rice fields change into residential or industrial areas. The land conversion that occurs causes a loss of some or all existing livelihood asset. This change in livelihood asset will result in a change in farmers livelihood strategies. This study aims to analyze the influence of the impact of land conversion towards livelihood strategies and the influence of the utilization of livelihood asset towards the livelihood strategies households. The location of this research is Pasirgaok Village, Rancabungur District, Bogor Regency. The method used to extract facts, data, and information in the research is the quantitative approach through survey method with questionnaires supported by qualitative data through interview and literature study until it is obtained that the impact of land conversion towards landless farmer household’s assets and livelihood strategies.Keywords: land conversion, landless farmer, livelihood asset, livelihood strategies

Avifauna using rice fields in the mid-western region of South Korea

2020 ◽  
Vol 27 (2) ◽  
pp. 107-115
Author(s):  
Seok-Jun Son ◽  
Green Choi ◽  
Min-Seock Do ◽  
Hyung-Kyu Nam
Keyword(s):  
South Korea ◽  
Rice Fields ◽  
Western Region

How Can We Use Fluorescence And Artificial Intelligence To Better Control Blue-Green Algal Blooms?

2018 ◽  
Author(s):  
Edoardo Bertone ◽  
Michele A. Burford ◽  
David P. Hamilton
Keyword(s):  
Artificial Intelligence ◽  
Algal Blooms ◽  
Green Algal
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