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jamila Jamila
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry

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KAJIAN KARAKTERISTIK KIMIA AIR, FISIKA AIR DAN DEBIT SUNGAI PADA KAWASAN DAS PADANG AKIBAT PEMBUANGAN LIMBAH TAPIOKA Riyanda Agustira; Kemala Sari Lubis; jamila Jamila
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.371 KB) | DOI: 10.32734/jaet.v1i3.2939

Abstract

The source of liquid waste of tapioca industry  from leaching and evaporation. Normally that liquid waste contents rough and soft of suspension solid and organic matter. Accumulation continuously of liquid waste of tapioca industry cause bad taste and odor so can destroy environment. The research executed on 5 tapioka factory at watershed Padang area and aroundabout used a survey method.  The research was conducted by water sampling  at 3-5 outlets, first from point of exile source of liquid waste to mixed at stream of river-bed. Water sampling used intergrating depth system method, in this researh at water surface of river stream. Water samples were taken three (3) replications for each outlet. Parameters  were measured pH, TSS TDS, BOD, COD and velocity of water. The research result to point at stream river waste of tapioca factory outlet PT. Serasi Jaya to point at increase value at some parameters to exceed standard quality class that on pH, TSS, and COD parameters each 4,23, 8,80 mg/L, and 137 mg/L. At stream river water waste of tapioca factory outlet PT. Sumatera Telaga Tapioka find some parameters to exceed standard quality class on parameters value pH, TSS, COD each 4,48, 79,3 mg/L, 1045,2 mg/L. At stream river water waste of tapioca factory outlet PT. Deli Sari Murni find some parameters to exceed standart quality class on TSS and COD parameters each 84,67 mg/L and 167,27 mg/L.   Key words : tapioca waste, chemical caharacteristic and velocity  
perbaikan sifat kimia tanah sawah akibat pemberian bahan organik pada pertanaman semangka (citrullus lanatus) jonson armando simamora; Abdul Rauf; Purba Marpaung; Jamila Jamila
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.608 KB) | DOI: 10.32734/jaet.v4i4.13417

Abstract

Tanah  sawah  adalah  tanah  yang  digunakan  untuk  bertanam  padi  sawah sepanjang  tahun maupun  bergiliran  dengan  tanaman  palawija. Kandungan bahan organik tanah yang rendah merupakan salah satu permasalahan utama yang menyebabkan rendahnya produktivitas lahan sawah. Penelitian ini bertujuan untuk mengetahui perubahan beberapa sifat kimia tanah sawah akibat pemberian bahan  organik pada pola tanam padi - semangka. Penelitian ini dilakukan di Desa Air Hitam Kecamatan Lima Puluh Kabupaten Batu Bara Provinsi Sumatera Utara mulai April sampai Juli 2014. Penelitian ini menggunakan Rancangan Acak Kelompok dengan perlakuan Bahan Organik yaitu Tanpa bahan organik, Jerami padi 5ton/ha, pupuk kandang domba 2,5ton/ha, pupuk petroganik dan mulsa jerami 0,5ton/ha. Hasil penelitian menunjukkan bahwa pemberian pupuk petroganik dan mulsa jerami 0,5ton/ha nyata meningkatkan C-organik tanah dan pH tanah, dan pemberian pupuk kandang domba 2,5ton/ha nyata meningkatkan K-tukar tanah serta pemberian jerami padi 5ton/ha nyata meningkatkan berat buah dan diameter buah.
Co-Authors Abdul Rauf jonson armando simamora Kemala Sari Lubis Purba Marpaung Riyanda Agustira