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Agroland : Jurnal Ilmu-Ilmu Pertanian
Published by Universitas Tadulako
ISSN : 0854641X     EISSN : 24077607     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agroland : jurnal Ilmu-ilmu pertanian diterbitkan 3 kali dalam satu tahun. Jurnal ini diterbitkan oleh Fakultas pertanian Universitas Tadulako dengan tujuan untuk meningkatkan kapasitas Dosen diLingkup Fakultas Pertanian dalam Bidang Penelitian dan sebagai penunjang dalam Tri Dharma Perguruan tinggi.
Arjuna Subject : -
Articles 399 Documents
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INFLUENCE OF OVERBURDEN ON SOIL COALESCENCE Uswah Hasanah
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 2 (2008)
Publisher : Universitas Tadulako

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Abstract

Pengamatan  di  lapangan  menunjukkan  bahwa  agregat  koalesen  terlihat  jelas  berkembang  dilapisan  bawah  zona penanaman selama musim tanam.  Hal ini menunjukkan bahwa tekanan overburden meningkatkan tingkat kontak antar agregat tanah.  Tanah  dengan  kandungan  partikel  bahan  organik  tinggi  relatif  resisten  terhadap  berkembangnya  agregat  koalesen.  Penelitian  ini  dilaksanakan  untuk  mengevaluasi  pengaruh  bahan  organik  dan  overburden,  dengan  cara  meletakkan  silinder logam yang memiliki berat berbeda (setara dengan tekanan static 0; 0,49; 1,47; dan 2,47 kPa) pada bagian atas agregat tanah kering (diameter 0,5-2 mm) dengan kandungan bahan organic yang berbeda.  Agregat tanah kemudian dibasahi pada kondisi hamper jenuh selama 24 jam kemudian didrainase dengan menggunakan lempeng keramik pada hisapan 100 kPa selama 1 minggu.  Kerapatan  isi,  tahanan  penetrometer  dan  kekuatan  tarik  diukur  ketika  sampel  tanah  dikeluarkan  dari  lempeng keramik.  Semua  parameter  yang  diamati  meningkat  dengan  bertambahnya  tekanan  overburden  pada  tanah  dengan  bahan organik rendah, tetapi tidak pada tanah dengan bahan organik tinggi.
INDEKS KEANEKARAGAMAN DAN KEMIRIPAN VEGETASI DI HUTAN SEKUNDER KAWASAN SUB DAS POWELUA KABUPATEN DONGGALA Naharuddin Naharuddin
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 13, No 3 (2006)
Publisher : Universitas Tadulako

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Abstract

The research was carried at Powelua river basin in District of Donggala Sub  with an aim of studying the diversity and similarity index of vegetation in the region. The research employed a line plot sampling method of a square form. This was done tracing a straight line crossing the contour lines. Results indicated that the diversity index in both young and old secondary forests were high, with an index value (H’) of 2.9 and 3.0, respectively. The two secondary forests had no similarity at all stand levels which included tree, pole, seedling and ground cover levels.
PENGARUH PEMBERIAN BOKASHI DAUN GAMAL (Gliricidia sepium) DAN DIAMETER AGREGAT TANAH TERHADAP PERUBAHAN SIFAT FISIKA TANAH DAN PERTUMBUHAN AWAL TANAMAN TOMAT (Lycopersicum esculentum Mill.) PADA ENTISOLS SIDERA Zaitun Zaitun; Uswah Hasanah; Abd. Rahman
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

Soil is a growing media for plant and living environment for soil micro dan macro organisms. Low soil fertility can become a limiting factor for plant growth and productivity. Soil fertility can be improved by adding organic materials such as bokashi.Another factor than can affect plant growth is soil aggregate diameter through its influence on various soil physical characteristics. The research objective was to determine the effect of gamal leaf bokashi (Gliricidia sepium)        and soil aggregate diameteron soil physical characteristics and early growth of tomato plant (Lycopersicum esculentum Mill.) in Entisols Sidera. The research was conducted from November to Desember 2013. Composite soil samples from 0-20 cm were taken from Sidera village Biromaru Sub District of Sigi District. The soil was sieved to obtain various aggregate diameter including       < 2 mm, 2-4 mm and 4-6 mm.The bokashi of gamal leaf was applied to the different soil aggregate diameter at a rate of 0, 30 t ha-1, 60 t ha-1. The research results showed no interaction effect of bokashi and soil aggregate diameter. The bokashi significantly reduced the bulk density to only 1,06 g cm-3 in 60 t ha-1 bokashi treatment. In contrast, the soil permeability significantly increased up to 26,18 cm h-1 and the water content at field capacity up to 22,02%. Shoot dry weight under 30 t ha-1 bokashi application was significantly higher than that under no bokashi added and that under 60 t ha-1 bokashi. Similar trend was also showed by dry root weight and total root length. Soil bulk density and water content at field capacity significantly and consistently reduced with larger soil aggregate diameter while soil permeability increased. Highest plant dry weight and total root length was found in 2-4 mm soil aggregate diameter treatment.                                                                                                                               Key Words : Aggregate diameter, bokashi, soil physical characteristics, and tomato growth.
PENGARUH LUAS POLA PENGGUNAAN LAHAN DAN KONDISI FISIK LINGKUNGAN TERHADAP DEBIT AIR DAN SEDIMENTASI PADA BEBERAPA DAERAH TANGKAPAN AIR (Catchment area) DI SUB DAS CIMANUK HULU JAWA BARAT Abdul Rahman
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 16, No 3 (2009)
Publisher : Universitas Tadulako

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Abstract

The research objective was to study the influence of the area of land use pattern and physical environment condition on land and water resource degradation through river water debit identification including its intensity and fluctuation, and sedimentation. The research object covered 12 water catchment areas which area spread at Upper Cimanuk watershed, West Java. Analysis model applied in this research was a multiple regression for determining a correlation between independent variable (X) and dependent variable (Y) on water catchment area unit as in Draper and Smith (1992). Research results indicated that mixed farming system, rice field area and stream form coefficient increased sedimentation. Increasing settlement area and average rainfall per year augmented annual water debit average. Upland farming increased debit fluctuation, annual debit average and sedimentation.  The larger the stream form coefficient and community forest the smaller the annual debit average.  Whereas the larger the water catchment area the smaller the stream debit fluctuation.
ANALISIS MANAJEMEN PERSEDIAAN BAHAN BAKU TORTILA RUMPUT LAUT DI INDUSTRI RISQA MULIA DI DESA OLAYA KABUPATEN PARIGI MOUTONG Ramdania Zafitri; Alimudin Laapo; Sulaiman Sulaiman
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 22, No 1 (2015)
Publisher : Universitas Tadulako

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Abstract

This study aimed to ascertaining the amount of the purchase of raw materials economical seaweed, to find out the total cost of supplies economical raw materials seaweed, the number of safety supplies the raw material of seaweed, and for knowing when done reserving back the raw material of seaweed on industrial risqa mulia in Olaya Village Parigi Moutong Regency. An instrument of the data analysis used in this research is economic order quantity ( eoq ), the total cost of the supply, supplies safety and the point of reserving back. The result showed that the number of economical the purchase of raw materials seaweeds that should be done by industry risqa noble in may-august 2014 each as many as 10.69 kg, 8,63 kg, 8 kg, 5,88 kg.The total cost of supplies economical issued in may-august 2014, each of the Rp.142.291 Rp.141.681 Rp.140.452 and Rp.140.804. Supplies security must always be available in a warehouse on industrial risqa noble as many as 0,5 kg.  Reserving back the point that needs to be done in may-august 2014 when raw materials at the rate of each as many as 0,89 kg, 0,83 kg, 0,79 kg, and 0,71 kg. Key words : The product tortila seaweed, inventory management.
ANALISIS KINERJA AGROINDUSTRI CRUDE COCONUT OIL (CCO) PADA IKRT “SUMBER REZEKI” DI DESA TINABOGAN KECAMATAN DONDO KABUPATEN TOLITOLI Mulkiah Amal Basri; Asriani Hasanuddin; Lien Damayanti
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 25, No 1 (2018)
Publisher : Universitas Tadulako

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Abstract

This study is a case study on the performance of crude coconut oil (CCO) agroindustry business run by Tinabogan Village community through a small household industrygroup SumberRezeki which is one of the developments of integrated coconut industry byTolitolidistrict government of Central Sulawesi. This study aimed to analyze the two-year performance of the group "SumberRezeki" in Tinabogan village using financial analysis. The research used profitability ratio and liquidity ratio methods. The profitability ratio usedwas the ratio of gross profit margin (GPM), net profit margin (NPM) ratio, return on investment (ROI), and return on equity (ROE) ratio. The liquidity ratio used wascurrent ratio (CR), quick ratio (QR) and cash ratio (CR). The results of the analysis showed that the overall profitability ratio of the business is efficient indicating that it is in a good performance interpretation. Although there is a decrease in ROI and ROE generated in time series of 2015 and 2016, the ratio of industry is still above the average suggesting that the business performance is good. Similarly, the liquidity ratio is liquid meaning that the business is able to pay its short-term debt on time. Keywords:Agroindustry, liquidity ratio, performance and profitability ratio.
KEMAMPUAN MEMANGSA DOLICHODERUS THORACICUS SMITH (HYMENOPTERA : FORMICIDAE) PADA BERBAGAI STADIUM PERKEMBANGAN SERANGGA PENGGEREK BUAH KAKAO, CONOPOMORPHA CRAMERELLA (SNELLEN) Edy Edy; Alam Anshary; Moh. Yunus
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 2 (2008)
Publisher : Universitas Tadulako

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Abstract

This  research  aim  to  know  the  ability  imago  D.  thoracicus  to  prey  C.  cramerella  at  various  growth  stadium.          This research in executing at April, 2007 up to August, 2007 in  Pest Laboratory and Entomological Faculty Of Agriculture of University  Tadulako.  Research  designed  in  Complete  Random  Device  (RAL),  consisted  of  by  four  treatment  and  three replication.  As  for  treatment  is  gift  prey  the  :  P1  (  egg  C.  cramerella),  P2  (final  larva  instars  C.  cramerella),  P3  (Pupa               C. cramerella), P4 (egg mixture, larva, pupa C. cramerella). Result of research indicate that the ability prey D. thoracicus to prey  C.  cramerella  larva  stadium  is  highest  comparing  treatment  of  egg  and  pupa,  same  thing  became  of  by  the  mixture treatment (egg, larva, pupa). Along of amount which is prey by D. thoracicus highest at larva treatment that is 2.33 - 8.33 so that big possibility of larva stadium is appropriate prey for D. thoracicus.
PROPORTION OF CONDENSED TANNIN IN DIGESTIVE PART OF SHEEP GIVEN PROTEIN MEALS AND POLYETHYLENE GLYCOL (PEG) ON LEUCAENA PALLIDA LEAVES BASE DIET Rusdi Rusdi; Kaharuddin Kasim
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 13, No 3 (2006)
Publisher : Universitas Tadulako

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Abstract

Sebuah kajian telah dilakukan untuk melihat potensi sumber protein untuk mengurangi pengaruh negative tannin dibandingkan dengan PEG, melalui evaluasi konsentrasi tannin bebas dan tannin terikat dalam saluran pencernaan ternak. Sebanyak 24 anak domba dilibatkan dan ditempatkan secara acak dalam faktorial 2X2 sebanyak 6 ulangan. Ternak diberikan makanan campuran daun pallida selama empat minggu melalui automatic feeders. Hasil penilitian menunjukkan bahwa tepung ikan kelihatannya mengikat tannin bebas dalam saluran pencernaan melalui pembentukan ikatan protein- atau serat-tannin yang lebih tinggi dibandingkan dengan tepung bulu.  PEG secara konsisten mengikat tannin bebas melalui peningkatan proporsi tannin yang terikat dalam bentuk ikatan serat-tannin. Olehnya itu, tepung ikan dan PEG berpotensu untuk menekan pengaruh negatif tannin.
SIFAT SENSORIS ASAP CAIR TEMPURUNG KELAPA HASIL ADSORPSI PADA ZEOLIT Syahraeni Kadir; Purnama Darmadji; Chusnul Hidayat; Supriyadi Supriyadi
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 21, No 2 (2014)
Publisher : Universitas Tadulako

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Abstract

Liquid smoke has a strong and pungent distinctive aroma caused some contributors compounds in these products, among others, phenolic, carbonyl and acid. Adsorption using zeolites in this study aimed to reduce the levels of hard pungent aroma compounds contributors so that liquid smoke can be accepted by consumers. Various pH zeolite ie 2, 3, 4, 5 and 6 are used as adsorbent liquid smoke where the fraction of adsorption results sensory analyzed by 20 panelists selected. Liquid smoke fraction was selected based on the results of sensory testing further analyzed using GC-MS and then analyzes the data using analysis of variance (ANOVA) with SPSS software version 16, followed by Duncan range test level of 1%. The results showed that as many as 14 fractions were tested for sensory worth of 25 fractions of liquid smoke coconut shell results in zeolite adsorption pH 2-6 where 11 other factions have a scent that is "hard and pungent". Contributors to the volatile aroma compounds in the liquid smoke by GC-MS assay include phenolic groups, carbonyl and acid. Adsorption coconut shell liquid smoke using zeolite effectively reduced the smell "hard pungent" of the product. Necessary to evaluate the shelf life of liquid smoke zeolite adsorption results. Key Words :  Adsorption, aroma, coconut shell, liquid smoke, zeolite.
POPULASI JAMUR MIKOTOKSIGENIK DAN KANDUNGAN AFLATOKSIN PADA BEBERAPA CONTOH BIJI KAKAO (Theobroma cacao L) ASAL SULAWESI TENGAH Asrul Asrul
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 16, No 3 (2009)
Publisher : Universitas Tadulako

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Abstract

The WHO and FAO regulation on the maximum level of 30 ppb aflatoxin in foods and feeds has prompted consumer-countries from Europe and USA to put pressure on producer-countries of cacao seeds to fulfill this requirement.  It is reported that aflatoxin contamination produced by fungi Aspergillus flavus in cacao seeds can occur in crops, in the field, at harvest, during postharvest operations and in storage.  This study aims at identifying mycotoxigenic fungi and their population, the content of aflatoxin in cacao seed at farmer, collecting-traders and exporter levels, and correlation between fungi population with aflatoxin content on cacao seed from Central Sulawesi. At a preliminary study, survey was conducted to determine samples of farmers, collecting-traders and exporters, and samples of cacao seeds (purposive sampling) in Donggala, Parigi Moutong, Poso, Morowali, Buol and Toli-toli districts as well as in Palu city.  Six samples of cacao seed were taken from every district and city (1 kg per seed sample).  Fungi from cacao seeds were isolated using a planting method with Potato Dextrosa Agar (PDA) as a media. The examination for other A. flavus and mycotoxigenic population was determined microbiologically, whereas aflatoxin was determined using HPTLC (High Performance Thin Layer Chromatography).  The results of the study showed that the number of fungi species (9 species), the density of fungi population (1.4 x 109) and the aflatoxin content (104.798 ppb) in dried cacao seed trading at the farmer level were higher than that of at the collecting-trader level          (6 species; 6.5 x 107 population density; 61.305 ppb aflatoxin content) and at the exporter level                 (5 species; 6.0 x 105 population density; 47.737 ppb aflatoxin content).  The fungi found at the ecology of cacao seed were Aspergillus flavus, A. fumigatus, A. niger, Peniciliium sp, Fusarium sp, Mucor sp, Rhizopus sp, Geotrichum sp, Verticillium sp, Trichoderma viride dan Trichoderma sp.

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