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All Journal AGROEKOTEKNOLOGI

Razali

Fakultas Pertanian, Universitas Sumatera Utara, Medan, Indonesia

Author-ID : 2980615

Agriculture, Biological Sciences & Forestry

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PENENTUAN KELAS KEMAMPUAN LAHAN DAERAH TANGKAPANAIR DANAU TOBA MENGGUNAKAN METODE SCORING Eko Moriye Simangunsong; Razali Razali; Mukhlis Mukhlis
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The research of land capability classification survey is held on the area of water capturing (DTA) of Danau Toba. Land capability classification is fulfilled by using scoring methods based on the land unit in DTA of Danau Toba. The scorring of limitation factor of each land unit is held to obtain land capability class. Here are the limitation factors of each land unit: the depth of efectivity land, texture, drainage, permeability, slope, erotion, flood and surface stone.The research outcome shows that there are totally 36 land units which are divided into 8 land capability classes. Land width of the first class is 26.484.59 ha, the second class is 73.422.64 ha, the third class is 32.912.79 ha, the fourth class is 28.442.06 ha, the fifth class is 21.751.94 ha, the sixth class is 2.749.55 ha, the seventh class is 618.26 ha and the eight class is 30.155.78 ha. Keywords: land capability class, land unit, scorring.

SURVEI DAN PEMETAAN STATUS KALIUM LAHAN SAWAH PADA DAERAH IRIGASI BAHAL GAJAH/TIGA BOLON KECAMATAN SIDAMANIK Wanaartha Nathalia Pardede; Supriadi Supriadi; Razali Razali
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Survey and mapping potassium status on wet rice have been in irrigation area Bahal Gajah/TigaBolon in kecamatan Sidamanik. This research purpose to make a map potassium status on wet ricefield in irrigation area Bahal Gajah/Tiga Bolon. The research was started on April until December2012. Sampling method use free grid survey method with semi detail survey scale. Result ofanalysis process using correlation method, with Geographical Information System (GIS) program.Parameter that analysis in laboratory is exchange of potassium. The result of research showed thatpotassium exchange available devided by 5 status such as; lowest 0,118 ha (0,03%), low 1,542 ha(0,36%), medium 35,203 ha (8,24%), high 90,114ha (21,08%), and highest 300,473 ha (70,29%).Key words: mapping, potassium, paddy soil

PEMETAAN STATUS UNSUR HARA C-ORGANIK DAN NITROGEN DI PERKEBUN NANAS (Ananas comosus L. Merr) RAKYAT DESA PANRIBUAN KECAMATAN DOLOK SILAU KABUPATEN Rosmenda Ginting Rosmenda Ginting; Razali Razali; Zulkifli Nasution
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

ROSMENDA GINTING:Mapping of Nitrogen and C-Orgnic status on Pineapple(Ananas comosus L. Merr) plantations owned by people at the village of Panribuan Subdistrict ofDolok Silau Simalungun District superinted by Ir. Razali, MP. And Prof.Ir. Zulkifli Nasution,M. Sc.,Ph.D. This research purpose to make a mapping of Nitrogen and C-Orgnic status onPineapple plantations owned by people at the village of Panribuan Subdistrict of Dolok SilauSimalungun District The research start to do on October 2012 until January 2013. Method of takingsample uses the free method grid survey with detail scale and use correlation method to analysisdata, with interpretating in mapping Nitrogen and C-Organic. Parameter that analysis in laboratoryis Nitrogen and C-Orgnic status. The result of research showing that status Nitrogen devided by 1status such as; medium (35,44 ha), C-Organic devided by 4 status such as ; Low (0,19 ha), Medium(1,01 ha), high (12,89 ha), and highest (21,35 ha).C/N devided by 3 status such as ; Low (1,95 ha),Medium (11,70 ha) and high (21,79 ha). From the analysis data using correlation method, knownthat the no effect on the production are Nitrogen and C-Organic but that effect are C/N.Key words: Mapping, Nitrogen, C-Organic and C/N

KAJIAN TOTAL BIOMASSA RERUMPUTAN DAN PENGARUHNYA TERHADAP TATA AIR TANAH DI DAERAH TANGKAPAN AIR DANAU TOBA. STUDI KASUS DI KECAMATAN SILAHISABUNGAN KABUPATEN DAIRI Sahala M Manurung; Abdul Rauf; Razali Razali
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The study on the total of biomass of grasses and it’s influences on soil moisture was conducted atSilahisabungan Subdistrict Dairi District, from November 2011 until February 2012. The objectiveof this research was to evaluate the effect of grasses to soil mositure. This study used survey methodwith purposive sampling. The result of this research showed that grass vegetation with rathersloping class total biomass 10,6 ton/ha, carbon reserve 5,3 ton/ha, field capacity 63,4 %, permanentwilting point 1,3 %, water content 62,0 % and permeability 7,5 cm/hours. In the undulating slopestotal biomass 7,1 ton/ha, carbon reserve 3,55 ton/ha, field capacity 51,6 %, permanent wiltingpoint 2,4 %, water content 49,2 % and permeability 7,6 cm/hours. In the rather steep slope totalbiomass 15,5 ton/ha, carbon reserve 7,75 ton/ha, field capacity 32,8 %, permanent wilting point 3,8%, water content 29,0 % and permeability 9,6 cm/hourd. In the forest vegetation with rather slopingclass, biomass total 7,54 ton/ha, carbon reserve 3,77 ton/ha, field capacity 150 %, permanent wiltingpoint 23,5 %, water content 126,5 % and permeability 10,3 cm/hours. In the undulating slopes totalbiomass 6,24 ton/ha, carbon reserve 3,12 ton/ha, field capacity 51,5 %, permanent wilting point 7,5%, water content 44 % and permeability 8,2 cm/hours. In the rather steep slope total biomass 8,86ton/ha, carbon reserve 4,43 ton/ha, field capacity 33,3 %, permanent wilting point 4,2 %, watercontent 29,2 % and permeability 11,25 cm/hours.Key words: biomass, soil moisture, toba lake water catchment area

PERANAN MIKORIZA TERHADAP PERTUMBUHAN, SERAPAN P DAN Cd TANAMAN SAWI (Brassica juncea L.) SERTA KADAR P DAN Cd ANDISOL YANG DIBERI PUPUK FOSFAT ALAM Yuli Sagala; Asmarlaili sahar Hanafiah; Razali Razali
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

This study aimed to determine the role of Mycorrhizae on plant Cd uptake P and mustard(Brasicca juncea L.) as well as the availability of P and Cd in fed Andisol phosphate fertilizer. Theresearch was conducted in the Greenhouse, Soil Biology Laboratory, and the Laboratory ofResearch and Technology Faculty of Agriculture, University of North Sumatra, Medan, in July2012-March 2013. This study uses a randomized block design (RBD) Factorial. The first treatmentwas a factor with two levels of mycorrhizal inoculum M0 (0g) and M1 (20g), the second factor isthe treatment of phosphate fertilizer (SP-36) with 4 dose levels, P0 (0g), P1 (0.97g), P2 (1.94g ),and P3 (3.88g) with 3 Deuteronomy thus obtained 2x4x3 = 24 experimental units. The parametersmeasured were the canopy dry weight, root dry weight, P uptake, mustard plant (Brasicca juncea L.)Cd uptake, the degree of mycorrhizal infection, levels availbility of P and Cd levels Andisol. Theresults showed that administration of Mycorrhizae increase the dry weight of the canopy, the degreeof infection of the roots, P uptake and plant-available soil P levels. Phosphate fertilizersincreased the dry weight of the plant canopy and P uptake, and tend to increase levels of P and Cdsoil and plant P uptake but not statistically.Keywords: andisol, phosphate fertilizer, and mycorrhizae.

PEMETAAN STATUS UNSUR HARA FOSFOR DAN KALIUM DI PERKEBUNAN NANAS (Ananas comosus L. Merr) RAKYAT DESA PANRIBUAN KECAMATAN DOLOK SILAU KABUPATEN SIMALUNGUN Muhammad Afwan Hadi; Razali Razali; Fauzi Fauzi
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTMapping of Phosphorus and Potassium status on Pineapple people plantations in the villagePanribuan Sub District Dolok Silau District Simalungun Leading by Ir. Razali, MP. andIr. Fauzi, MP. This research purpose to make a mapping phosphorus and potassium status onPineapple people plantations in the village Panribuan Sub Dolok Silau Simalungun District. Theresearch started to do on October 2012 until January 2013. Method of taking sample used the freemethod grid survey with detail scale and use correlation method to analysis data, with interpretatingin mapping Nitrogen and C-Organic. Parameters to be analyzed are P2O5 and K2O.The result ofresearch shows that P2O5 status devided by four status ; low (6.5 Ha), medium (11.63 Ha), high (8.7Ha) and very high (8.61 Ha. K2O devided by four status ; very low (20.09 Ha), low (11.76 Ha),medium (3.28 Ha), and high (0.31 Ha). Satistic analysis using SPSS known that the no effect on anincrease in production by P2O5 but K2O give effect on an decrease in pineapple production.Keywords : mapping, P2O5, K2O, and production

EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN BAWANG MERAH (Allium ascalonicum L.) DI KECAMATAN MUARA KABUPATEN TAPANULI UTARA Nurhalimah Rajagukguk*, Zulkifli Nasutio Rajagukguk; Zulkifli Zulkifli; Razali Razali
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research is to evaluate the land suitability onion (Allium ascalonicum L.) inMuara Subdistrict of North Tapanuli District. The methode of this research is the survay method.From the results of the overlay from the map of soil types, map of topography, and map of heightplace, retrieved 3 (three) units of land use map. SPL 1 has a land area of 741 hectares, SPL 2 has aland area of 13 hectares, and SPL 3 has a land area of 609 hectares.With the Matching method, thenretrieved the land suitability class actual and potensial class for onion (Allium ascalonicum L.) oneach of the SPL. At SPL 1 and SPL 2 are actual land suitability class S3 (nr) while the potentialland suitability class is S2 (tc) and at SPL 3 is actual land suitability class S3 (nr,eh) while thepotential land suitability class is S2 (tc,eh).Key words : land suitability (onion)

EVALUASI KESESUAIAN LAHAN UNTUK PADI SAWAH TADAH HUJAN (Oryza sativa L.) DI KECAMATAN MUARA KABUPATEN TAPANULI UTARA Yopie Priest Aulia Sinaga; Razali Razali; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

This study aimed to evaluate the suitability of land in Muara North Tapanuli for rainfed paddyfields. Based on a map of soil type and slope maps generated from topographic maps with a scaleof 1: 50,000, then be overlaid. Raised 3 LMU(Land Map Unit) are eligible to be assessed for rainfedpaddy crop. The assessment of land suitability classes with appropriateness rainfed paddy fieldscriteria is based on Djaenuddin, et al., 2011. The results showed that the potential land suitabilityclass LMU 1 isN (rc), potential land suitability class LMU 2 is S3 (tc), potential land suitabilityclass LMU 3 is S3 (tc, rc). Potential land area for rainfed paddy fields in the district of Muara is of1844 hectares.

PENGEMBANGAN UJI VISUAL SEDERHANA DARI KUALITAS BERBAGAI KOMPOS DAN PERBANDINGANNYA DENGAN UJI LABORATORIUM DAN UJI PERCOBAAN LAPANGAN Syafitra Ibadillah; T. Sabrina; Razali Razali
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

At the market, composts are sold varied in their quality. Some of them are originated fromforest floor and other are collected from burnt and half- decomposed municipal waste. Thereis no control for commercial compost by government, thus many of composts sell at marketare not registered. Buyers should able to detect the good and bad compost quality in thesimple ways. This present experiment was conduct to develop a new simple visual test todetect the good and bad compost quality and comparing test result with the test result oflaboratory analysis and field experiment. The composts used in this experiment were:vermicompost (made by researcher), 2 burnt municipal waste (burned by researcher) and 8commercial composts. Simple test consist of several parameters viz color, odor, react ofcompost when put into water, The compost laboratory analysis were: pH, carbon organic,total nitrogen, ratio, C/N, total microorganism number, water holding capacity, compostparticle size composition. The field experiment test was conducted in the screen house usingmustard as an indicator plant. The experiment design was randomized block with 12treatments (vermicompost as a control for good compost, 2 burnt municipal waste compostsas a control for bad compost, 8 commercial composts and without adding compost) and 3replications. The result showed that the color of burnt municipal waste composts weregrayish, while the color of vermicompost was dark brown. No Odor of burnt municipalwaste compost was founds, while the odor of vermicompost was humid odor. All of theburnt municipal waste composts were sinking into the bottom of glass when it puted intowater, and not for vermicompost. Almost all of compost solid from forest floor was floatingwhen puted into water. The laboratory analysis test showed the burnt municipal compostshad the lowest C organic, N total content, C/N, and total microorganism number, and had thehighest pH value compare to other composts. The tests showed that some of commercialcomposts quality were bad. Meanwhile, the result of field experiment test did not gave thesignificant effect on the growth and production of mustard (Brassica juncea) using good orbad compost quality compare to control (without adding compost). As conclusion, the badquality of compost especially the burnt municipal waste compost, and the forest floorcompost were able detect using simple test by putting it into water.Keywords : vermicompost, burnt municipal waste, commercial compost, simple test,laboratory test, field experiment test

Klasifikasi Tanah Di Lereng Selatan Gunung Burni Telong Kecamatan Bukit Kabupaten Bener Meriah Provinsi Aceh Thasniema Putri; Purba Marpaung; Razali Razali
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The research at south slope of mount Burni Telong is aimed to soil classification with theclassification system of Soil Taxonomy, 2014 into sub grup category which was conducted inFebruary – September 2014. Two selected pedons were observed at middle slop (Va.1.6.1t) andbottom slope (Va.1.4.1t). Soil samples were taken from each horizon for analysis bulk density, pH(H2O), pH (KCl), pH (NaF), Al, cation exchange capacity, base saturation, qrganic carbon,phosfat retention in Research and Technology Laboratory, Agricultural Faculty of North SumateraUniversity, Medan and analysis of soil texture, Al-oxalate extracted (Alo), Si-oxalate extracted(Sio), and Fe-oxalate extracted (Feo) in Soil Laboratory, Soil Research Institute, Bogor.The resultof this research is the classification in the middle slop soil (Va.1.6.1t) is Humic PsammenticDystrudepts, and on the bottom slope soil (Va.1.4.1t) is Typic Hapludands.Keywords: Mount Burni Telong, Soil Classification, Soil Taxonomy dd

Co-Authors Abdul Rauf Ade Ine Imansari Adven Bangun Simanungkalit alida alida Asmarlaili Sahar Hanafiah Azis Syahed Benny Hidayat Bernart Jhensen Arihta Barus Eko Moriye Simangunsong Ewin Syahputra Fauzi Fauzi Fauzi Fauzi Fitra Rizki Aghita Purba Gantar Sitanggang Hamidah Hanum Hardy Guchi Irma Elia Ispan Ardi Jamil Muhammad jupita rahmadani Kemala Sari Lubis Kemala Sari Lubis Koko Tampubolon Lubis Sari Kemala Mariani sembiring Muhammad Afwan Hadi Muhammad Ridho Catur Prasetya Mukhlis Mukhlis Mukhlis, Mukhlis Nahrir Auza'ie Nikson Sitinjak Nurhalimah Rajagukguk*, Zulkifli Nasutio Rajagukguk Posma Marbun Purba Marpaung Rio Andreas Tambunan RORIA RENTA SILALAHI rose friska hutapea Rosmenda Ginting Rosmenda Ginting Sahala M Manurung Sarifuddin Sarifuddin Supriadi Supriadi SUPRIADI SUPRIADI SUPRIADI Syafitra Ibadillah T Sabrina Thasniema Putri Wanaartha Nathalia Pardede Yopie Priest Aulia Sinaga Yuli Sagala zulkifli nasution Zulkifli Nasution Zulkifli Nasution Zulkifli Zulkifli

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