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All Journal AGROEKOTEKNOLOGI Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Andi Setiawan
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry

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Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) Terhadap Dosis LimbaCair Pabrik Kelapa Sawit dan Tipe Pemotongan Umbi Andi Setiawan; Rosita Sipayung; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.569 KB) | DOI: 10.32734/jaet.v3i1.9486

Abstract

The research aimed to study about the response of growth and yield of shallot on palm oil milleffluent (POME) and type of bulb fission.  The research has been conducted on land of AgriculturalFaculty USU (± 25masl) from April to Juny 2014, using a factorial randomized block design withtwo factors which are dosage of effluent (0; 1; 2; 3 l/plot) and the second factors were type offission (no fission, fissioned 1/3 part, fissioned into 2 part). The Parameters observed were plantheight, leaves number per clump, tillers number per clump, clove number, wet weight of bulb perplant, wet weight of bulb per plot, dry weight of bulb per plant and dry weight of bulb per plot. Theresults showed bulb fission treatment significantly increased for all parameters. Giving palm oil milleffluent significantly increased clove number and interaction of fission bulb treatment and givingpalm oil mill effluent non significantly increased for all parameters.Keywords:shallot, POME, fission
PENENTUAN LIKU KALIBRASI DEBIT (RATING CURVE) PADA MUSIM HUJAN DI DAERAH ALIRAN SUNGAI (DAS) DELI Andi Setiawan; Edi Susanto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.169 KB) | DOI: 10.29303/jrpb.v7i2.117

Abstract

Discharge rating curve is a curve that shows the relationship between water level and river flow so that it can be used to predict the amount of discharge in the river. The purpose of this research was to find the equation of the discharge rating curve in the Deli watershed. This research was carried out by analyzing river water discharge and taking water level data using a water level logger with a minimum of twice a week. River water discharge at the study location has a varied value i.e 0,74 – 3,28 m3/sec with an average of 1,06 m3/sec. The determination of the equation of the discharge rating curve uses several methods namely linear, polynomial, power function, logarithmic, and exponential. The results of the study show that the equation with the second order polynomial method has the best level of correlation (r) and RMSE with value r 0.986 and RMSE 0.011. The rating curve equation obtained was Q = 18,97 (h)2 – 1,372(h) + 0.190.
Co-Authors Edi Susanto rosita sipayung Toga Simanungkalit