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All Journal Bumi Lestari EUGENIA Jurnal Pendidikan IPA Indonesia Sainteknol : Jurnal Sains dan Teknologi Seminar Nasional Lahan Suboptimal Jurnal Agroekoteknologi Terapan Biofaal Journal Journal of Agriculture (JoA) Bulletin of Social Informatics Theory and Application COCOS EKOTON Jurnal Pendidikan IPA Indonesia Jurnal Lentera: Penelitian dan Pengabdian Masyarakat Journal of Literacy and Education
Sofia Wantasen
Universitas Sam Ratulangi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Bumi Lestari

 1 
STUDI KUALITAS AIR IRIGASI DUMOGA DI KABUPATEN BOLAANG MONGONDOW PROVINSI SULAWESI UTARA Sofia Wantasen; Joudie. N. Luntungan
Bumi Lestari Journal of Environment Vol 17 No 2 (2017)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2017.v17.i02.p04

Abstract

Water Irrigation a very important and is one key to the success of the increased production of rice plants in the paddy field. The aim of this study was to assess the water quality Irrigation Dumoga at Kabupaten Bolaang Mongondow Province Sulawesi Utara. Data collected by observation of agriculture activity and determination of sampling by using composite sampling method at canal Irrigation Dumoga. Measurement in situ pH, and temperatur. Analysis concentration total dissolved solid (TDS), total suspended solid (TSS), conductivity (DHL), nitrate and phosphate, sodium, calcium, magnesium in the Laboratory. Method data analysis are Graphic Method and to compare with standart Goverment PP. No. 82/2001 Class IV, and Sodium Absorption Ratio (SAR) Analysis. The results showed that temperatur at canal Irrigation Motabang 29,3 C, pH 7,12, value of the total dissolved solid (TDS) 127 mg/l, total suspended solid (TSS) 7 mg/l, conductivity (DHL) 182 µS/cm, nitrate 0,040 mg/l, phosphate 0,076 mg/l mg/l eligible accordance with the standard PP No. 82/2001 Kelas IV. Natrium concentration 6,38 mg/l, kalsium 0,76 mg/l, magnesium 0,27 mg/l.
DISTRIBUSI SPASIO -TEMPORAL NITROGEN DI DAERAH TANGKAPAN AIR DANAU TONDANO PROVINSI SULAWESI UTARA Sofia Wantasen; Joudie N. Luntungan
Bumi Lestari Journal of Environment Vol 16 No 1 (2016)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2016.v16.i01.p03

Abstract

The spatio temporal distribution of nitrogen in catchment area of   Lake Tondano wasimportant to investigate because agricultural residue comes from the catchment potentiallydecreased water quality in Lake Tondano. The purpose of this study was to examine thedistribution of nitrogen spatially and temporally in the catchment area of Lake Tondano.The study was conducted in the field and laboratory. Water quality sampling conducted byusing composite sampling on the rivers, lake Tondano and outlet of irrigation channels.The data collected was the total nitrogen, nitrate, ammonia in 2001, 2008 and 2014. Datawere analyzed using Graph Method and Spatial Analysis.        The results showed that the distribution of total nitrogen that has a high concentrationfound in the outlet streams and irrigation canals outlet. High nitrate accumulates in theoutlet of Lake Tondano. Nitrate concentration can be divided into 9 (nine) classes, namelyconcentration of 0.100 to 0.211 mg / l; 0.211 to 0.322 mg / l;  0.322 to 0.433 mg / l;  0.433 to0.544 mg / l; From 0.544 to 0.655 mg / l; From 0.655 to 0.766 mg / l; 0.766 to 0.877 mg / l;0.877 to 0.988 mg / l; and 0,988- 1,100 mg / l. Ammonia, spatially spread evenly on thesurface of Lake Tondano. Ammonia concentration can be divided into 9 (nine) class is aclass that has a concentration of 0.000 to 0.064 mg / l; From 0.064 to 0.129 mg / l; 0.129 to0.193 mg / l; From 0.193 to 0.258 mg / l; 0.258 to 0.322 mg / l; 0.322 to 0.387 mg / l; From0.387 to 0.451 mg / l; 0.451 to 0.516 mg / l; and from 0.516 to 0.580 mg / l. Concentrationsof nitrate and ammonia fluctuated from year to year of observation. This was influenced byfertilization in rice fields.
RESIDU PUPUK NITROGEN DI LINGKUNGAN PERAIRAN HULU DAERAH ALIRAN SUNGAI TONDANO PROVINSI SULAWESI UTARA Sofia Wantasen
Bumi Lestari Journal of Environment Vol 15 No 2 (2015)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The Nitrogen fertilizer which is not absorbed by plant will be impact to residue in  theenvironment.  The aim of this study was to assess the residues of nitrogen in the aquaticenvironment up stream of the Tondano Watershed during 2013-2015 (three years).  Datacollected by observation of agriculture activity and determination of sampling by usingcomposite sampling method in River Panasen which is paddy irrigation outlet canal upstream of the Tondano Watershed during 2013-2015 (three years), was measurement eachthree month and analysis nitrate, nitrite, ammonia in the Laboratory.   Method data analysisare Graphic Method and to compare with standart Goverment PP. No. 82/2001 Class II.Results showed that the nitrogen residue concentration (nitrate, nitrite, ammonia) ataquatic environment in the up stream of Tondano Watershed on the growing season in 2013nitrate concentration: 0,293-0,408 mg/l; nitrite 0,001-0,041 mg/l; ammonia 0,04-0,28 mg/l. in the growing season in 2014  concentration nitrate: 0,184-0,628 mg/l; nitrite 0,020,077mg/l;ammonia0,002-0,13mg/l.inthegrowingseasonin2015concentrationnitrate:0,173-0,585mg/l;nitrite0,001-0,029mg/l; ammonia0,05-0,10mg/l.
Co-Authors Adeleyda Lumingkewas Adeleyda M. W. Lumingkewas Anatasya Siahaan Annie E. arore Apri Silia M. Dampi Arthur G. Pinaria Billy Fandy. Sagai Bobby J. V. Polii Bobby Polii Bobby Polii Chintya Gita Sartika Modeong Christine F Mamuaja Dedie Tooy Deflly A. S. Turang Deflly Ansye Shilfana Turang Defly A. S. Turang Demmassabu, Langimanapa Sofia Diane D. Pioh Diane Pioh Eka P. Manalu Eko Sugiharto Elisabeth R. M. Meray Enderika Enus Fadlika Mawali Frangky J. Paat Frangky Paat Fransiska Mitra.B.K Zebua Gurning, Aksay K. Hendra Yusuf Islam, Noorul Jackson Watung Jacqueline Joseph Jantje Pongoh Jantje Pongoh Jeanne Martje Paulus Jeanne Martje Paulus, Jeanne Martje Jellie Porong Jemmy Najoan Jemmy Najoan, Jemmy Jimmy Rimbing Johannes E. X. Rogi John L. Rantung, John L. Jooudie Luntungan Jooudie N. Luntungan Jooudie N. Luntungan Joudie N. Luntungan Joudie. N. Luntungan Junivia Virginia Jermias Koneri, R. Langimanapa Sofia Demmassabu Lumingkewas, Adeleyda Lumingkewas, Adeleyda M. W. Lumingkewas, Adeleyda M.W. Lumingkewas, Adeleyda Margharetha Luntungan, J. N. Luntungan, Jooudie Luther Latumakulita Mamuaja, Christine F Mandagi, Franklin MARJAM M. TODING Melkison Sanggel Moniaga, Wilson M. Noeng, Masshynio Ch. A. Ogie, Tommy B. Paat, Frangky Jessy Pioh, Diane Popo Fauza Gultom Porong, Jellie Rinny Mamarimbing Roni Koneri Salsabella, Syafira Sandra Pakasi Sandra Pakasi Selvie Tumbelaka Selvie Tumbelaka Siahaan, Anatasya Siti Mutmaina Pondaag Slamet Suprayogi Sudarmadji Sudarmadji Sumakud, Maria Yolanda Syafira Salsabella Tenda, Edwin TODING, MARJAM M. Tommy B Ogie Tommy B. Ogie Turang, Deflly Ansye Shilfana Watung, Jackson F. Wiske Rotinsulu Wiske Rotinsulu Wiske Rotinsulu Yulianti Gandi