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Agrifor : Jurnal Ilmu Pertanian dan Kehutanan
Published by Universitas 17 Agustus 1945 Samarinda
ISSN : 14126885     EISSN : 25034960     DOI : https://doi.org/10.31293/af.v18i2
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agrifor Journal is a scientific journal that contains writings in the form of research results, book review, conceptual studies, and scientific works in the field of Agriculture and Forestry concerning relevant cultivation.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 11 Documents
 1   2 
Search results for , issue "Vol 11, No 2 (2012): Oktober" : 11 Documents clear
ANALISIS PERUBAHAN TUTUPAN LAHAN AREAL KONSESSI TAMBANG PT KALTIM PRIMA COAL Benteng H Sihombing
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.106

Abstract

One way of knowing the land coverage change is through Landsat TM imagery analysis from two periods of running time.  It takes at least 2 coverage of the image data to get land cover changes.  Mine concession area of PT Kaltim Prima Coal is a product of the area functional transfer of formely the Forest Cultivation Areas (KBK) ex IUPHHK PT Porodisa Ltd. into Other Areas Use (APL) of PT Kaltim Prima Coal mine concession.  In the span of two concession, it was necessary to know whether there are changes in land cover during the transition period (the period of 10 years).  It can only be known through the analysis of land use change using Landsat TM in 2002 and 1012.  The tendency of quality of land cover change that is known through the analysis of these land cover changes and the significance of cover change, are based on information of how the historical of land cover change occurred.
PENGARUH PENGGUNAAN PUPUK NPK PELANGI DAN PUPUK HUMEGA CRUMBLERS TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis gueneensis Jacq ) Gusti Nyoman Semarabawa, Abdul Fatah
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.110

Abstract

Objective of the research was to study the effect of NPK Pelangi and Humega Crumblers fertilizers, as well as their interaction on the growth of oil palm seedling.  The research was carried out in Sabintulung Village, Muarakaman Sub Disctrict of Kutai Kartanegara, East Kalimantan Province.  It took about 4 months from January to April 2012.  The Completely Randomised Design was employed for this research with factorial 4 x 4 and 3 replications.  The first factor was NPK Pelangi fertilizer application (p), consisted of 4 sub factors: No NPK Pelangi fertilizer application (p0), 30 g NPK Pelangi (p1), 60 g NPK Pelangi (p2), 90 g NPK Pelangi (p3).  And the second factor was application of Humega Crumblers fertilizer (h), consisted of 4 factors : No Humega Crumblers (h0), 20 g Humega Crumblers (h1), 40 g Humega Crumblers (h2), and 60 g Humega Crumblers (h3).  Results of the research revealed that the application of NPK Pelangi affect significantly on the increment of stem diameter at 10 weeks old after planting,  increment of petiole number at 14 weeks old, and number of fully open leaves (pinnate) at 14 weeks old.  But it did not affect significantly on the increment of seedling height at 6 and 10 weeks old after planting, and increment of stem diameter at 6 and 14 weeks old, and increment of petiole number at 6 and 10 weeks old.  The application of Humega Crumbles gave significant effect on the increment of stem diameter at 10 weeks old after planting, and the increment of petiole number at 14 weeks old, but it did not affect significantly on the increment of seedling height at 6, 10 and 14 weeks old after planting, increment of stem diameter at 6 and 14 weeks old, the increment of petiole number at 6 and 10 weeks old, and number of fully open leaves at 14 weeks old.  Meanwhile, the interactions between NPK Pelangi and Humega Crumbles fertilizers did not affect significantly on all parameters observed.
PRODUKSI PERTANAMAN CAMPURAN ANTARA Brachiaria decumbens DAN Pueraria phaseoloides BERMIKORIZA DENGAN PEMBERIAN KOMPOS CAIR Taufan Purwokusumaning Daru, Soedarmadi Hardjosoewignjo, Luki Abdullah, Yadi Setiadi, Riyanto
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.115

Abstract

The objective of the experiment was to find out the forage production from mix culture of mycorrhizal signal grass (B. decumbens) and puero (P. phaseoloides) which amended with liquid compost.  Experiment was done in wood box 1.5 m x 1.5 m x 30 cm that filled with soil from location of experiment that was at Sangatta at PT Kaltim Prima Coal (KPC) site of East Kutai Regency. Experiment was arranged by Randomized Block Design with factorial.  The first factor was mix culture of signal-puero with ratio 40% signal + 60% puero (c1), 50% signal + 50% puero (c2), and 60% signal + 40% puero, and the second factor was combination of AMF-liquid compost, those were non AMF + non liquid compost (d1), AMF + non liquid compost (d2), non AMF + liquid compost (d3), and AMF + liquid compost (d4).  AMF was inoculated by seed coating technique.   Result of this experiment showed that mix culture of signal-puero affect significantly different on forage dry matter production, forage P production, spore density of signal rhizosphere (P < 0.01), CP of forage production, and spore density of puero rhizosphere (P < 0.05), but not significantly different (P > 0.05) on signal and puero CP content, signal and puero CF content, signal and puero P content, forage CF production, signal and puero AMF colonization.  Whereas, combination of AMF-liquid compost gave effect to forage dry matter production, signal CP content, puero CF content, puero P content, forage CP production (P < 0.05), and signal and puero AMF colonization (P < 0.01).  There was not interaction between mix culture of signal-puero and combination of AMF-liquid compost.  Generally, highest quantity and quality of forage production was achieved on mix culture of 40 % signal and 60 % puero, meanwhile combination of AMF-liquid compost was obtained on treatment AMF+liquid compost.  Mix culture of 40 % signal and 60 % puero may be accepted as pasture on grazing land.
APLIKASI ZPT NOVELGRO ALPHA DAN POC BIO SUGIH TERHADAP PERTUMBUHAN BIBIT ADENIUM (Adenium obesum var. Fadia) Bambang Supriyanto
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.111

Abstract

The propose of research was to know interaction between the Novelgro Alpha plant growth regulator and the Bio Sugih liquid organic fertiliser application on the growth of Adenium (Adenium obesum var. Fadia), and to find the best concentration of both Novelgro Alpha and Bio Sugih that effect the best growth of Adenium seedling.  The research conducted from July until October 2008 in the greenhouse (OECF Integrated Laboratory) of Agricultural Faculty, Mulawarman University, Samarinda.  The research was arranges in randomized completely design (RCD) in factorial which consist two factors with five replications.  The first factor was consentration of Novelgro Alpha that consist three levels, namely n0 (control), n1 (1.0  mL L-1 solution), and n2 (2.0  mL L-1 solution).  The second factor was Bio Sugih that consist three levels, namely p0 (control), p1 (1.0  mL L-1 solution) and p2 (2.0 mL L-1 solution).  Result of this research showed that interaction between Novelgro Alpha and Bio Sugih is significantly different on the plant height increment at the third, the fourth, the fifth, and the sixth two-week after treatment, the increment of leave number at the first, the fourth two-week, the fifth two-week, and the sixth two-week after treatment, the increment of stem diameter at the second, the fourth, the fifth, and the sixth two-week after treatment; the increment of leaf area and leaf thickness.  Novelgro Alpha is also significantly different on the plant height at the third, the fourth, the fifth, and the sixth two-week after treatment; the increment of stem diameter at the fourth, the fifth, and the sixth two-week after treatment; the increment of leave number, leaf area and leaf thickness.  Meanwhile, the Bio Sugih liquid organic fertilizer was significantly different on the increment of leave number at fourth and the sixth two-week after treatment.
Kesesuaian Media Tumbuh Stek Akar Sukun Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.1

Abstract

The results showed that the average growth of roots at the age of 4 months was very real different between treatments and the best growth was in medium roasted husk fuel (SB), husk fuel humus (SBH) and then burn the chaff sand (SBP) with the following average husk fuel the growth of root length 4.33 cm, 3.33 cm and 2.00 cm.Shoot growth showed that the average growth of shoots at the age of 4 months was very real different between treatments and the best growth medium roasted husks (SB), husk fuel humus (SBH) and husk sand burns (SBP) with the following average husk fuel shoot growth was 3.67 cm, 3.00 cm and 2 cm. Best growth in medium roasted husks due to aeration and water absorption media quite well when too wet and dries quickly when the watering less easily monitored and medium roasted husks too sterile of fungus and nest for easy root growth and subsequent shoot will also grow.  
EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN PADI DAN PADI LADANG DI DESA BILA TALANG KECAMATAN TABANG KABUPATEN KUTAI KARTANEGARA Ince Raden, Thamrin, S. Syarif
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.112

Abstract

This study aimed to determine the suitability classes of land and improvement efforts in order to develop lowland and upland rice in the Bila Tabang village of Tabang Sub District.  Survey fieldwork was conducted with making mini profile (1.2 x 1.2 x 1 m) for morphological properties of the samples that were carried out at a depth of 0-30 cm and 30-60 cm, while drilling carried around a mini profile with composite method (8 points) for the analysis of the nature of soil physic/chemical.  The data obtained were analyzed using standard criteria of the Soil Research Institute, Centre for Research and Development of Land and Agro-climate, Agricultural Research Agency, the Department of Agriculture in 2003 that use of land quality criteria which include temperature, availability of water, availability of oxygen, rooting media, nutrient retention, sodisitas, erosion and land preparation.  Each area was divided into several quality characteristics of land used as a reference to assess the characteristics of the land so that this land can be determined several factors limiting the growth of rice crops to be developed.  The survey showed that the actual land suitability classes are marginally suitable (S3) for lowland paddy as well as upland rice, but compliance can be improved through efforts to improve by adding the organic matter, fertilizing, liming, drainage, terracing and guludan so that potential land suitability class to be quite suitable (S2).
PEMBUKAAN WILAYAH HUTAN DAN KERUSAKAN TEGAKAN AKIBAT PRODUKSI JENIS MERBAU (INTSIA SPP.) DI IUPHHK PT MEGAPURA MAMBRAMO BANGUN PAPUA BARAT Rusdy Anggriyanto, Yosep Ruslim
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.108

Abstract

The research purpose was to determine the process or production activities, the log stock damage level and the log stock conditions as the Intsia spp. production impacts in IUPHHK PT Megapura Mambramo Bangun West Papua.  The forestry activities carried out by IUPHHK PT Megapura Mambramo Bangun refers to Indonesian planting selective cutting system (TPTI) and limited to Intsia spp. with production in RKT 2011 (total area 1300 ha) was 2538 trees and 68477.30m³ volume, but based research results obtained with 210 rods by 2497.55m³ volume (sampling area 120 ha in wide).  The forest damage occurred in IUPHHK PT Megapura Mambramo Bangun as the Intsia spp. production included the trees felling area covering to 7.79 ha, the liana cleaning area covering to 11.40 ha, the skidding trails making area to 7.39 ha and the branch or main road construction area along with 10.081 km by 22.16% damage intensity.  The greatest log stock damage level caused by skidding activity compared with the cutting which included seedlings level after cutting was to 50.04% and skidding was to 77.76%, the stake level after cutting was to 49.62% and the skidding was to 72.35%, the pole after logging was to 22.66% and skidding was to 87.75% and the trees level after logging of 13.38% and skidding of 77.82%.
PEMANFAATAN LAHAN BEKAS TAMBANG SEBAGAI MEDIA TUMBUH TANAMAN BUDIDAYA DENGAN APLIKASI DOLOMIT DAN SERESAH TANAMAN DENGAN TANAMAN UJI KAILAN Nurul Puspita Palupi
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.113

Abstract

The post mining soil has generally known for its high acid, poisonous compound and low macro nutrient concentration. (N, P, K, Ca, and Mg).  At this particular soil condition, many of the cultivation plants cannot grow well.  Therefore, a research needs to be conducted in order to repair the post mining soil condition by means of increasing the pH and macro nutrient concentration through calcification and litter addition.   This research had been done in November until December 2012 at the Agronomy Laboratory, Agriculture Faculty of The Mulawarman University used the Complete Random Design of Factorial (RAL) 2 x 5, with 3 times repetition.  The first factor was the Dolomite (D) with 2 levels (d0 = 0 g dolomite/kg soil, and d1 = 6,06 g dolomite/kg soil.  The second factor was the litter (T) with 5 levels (t0 = 0 g/kg soil, t1 = acacia litter (Acacia Mangium Will) 100 g/kg soil, t2 = Arachis pintoi litter Krapov. & W.C. Greg 100 g/kg soil, t3= seashore flower (Wedelia trilobata (L.) Hitchc) litter 100 g/kg soil and T4 = sengon litter (Albizzia Falcataria) 100 g/kg soil.  This research used the Kailan plant (Brassica oleraceae L. var acephala DC).   On the soil which had no dolomite, litter treatment A. Pintoi Krapov.&.K.C.Greg and sengon had positive impact on the pH increase, also for C-organic, N-total, and decreased the C/N value ratio, and Al3+content, followed by the seashore flower litter also influenced positively to the pH, C-organic, N-total increase, and decreased Al3+content.  Acacia influenced positively to the C-organic and N-total also, but negatively influenced the C/N ratio and Fe solubility.  The dolomite treatment with sengon litter gave additional height to the plants, leaves quantity and wide better than other treatment. 
PERTUMBUHAN TANAMAN GAHARU (Aquilaria sp.) DI DESA GIRI AGUNG KECAMATAN SEBULU KABUPATEN KUTAI KARTANEGARA PROVINSI KALIMANTAN TIMUR Datu Bandar Pramana; Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.109

Abstract

The experiment was conducted at the Community Forestry area in the Giri Agung Village of Sebulu Sub District, Kutai Regency.  Planting implementation was in 2006.  Research carried out for about 2 effective months (from May to June 2012).  The object was Gaharu crop of 6 years old in the Giri Agung Village with the total samples 30 crops planted at the top of hill, and 30 crops planted at the slope.  The data was analysed with SPSS 12 t-test to determine the differences in growth at the top and on the slopes at the significant level 95%. The results showed that the Gaharu crop growth at top and at slope hill were not significantly different on both crop diameter and height growth by the t test.  The results of the statistical test using t-test showed that t-count is less than t-table which means there is no significant difference in the average of crop height at the top and slope.  There were several limiting factors for optimum growth of Gaharu.  They were soil factors, especially pH and limitation availability of some macro and micro nutrients, because almost all the nutrients required by the Gaharu is generally lacking.  Therefore, it needed an improvement or increase in the availability of nutrients by fertilizing with both organic and inorganic fertilizers that are required by the Gaharu.
RESPONS ASAL BAHAN STEK SIRIH MERAH (Piper crocatum Ruiz and Pav.) TERHADAP KONSENTRASI ROOTONE F Rismawati , Syakhril
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.114

Abstract

The objectives of the experiment was determine the suitable concentration of  Rootone F and response of cuttings material origin of Red Betel, as well as the interaction between them.  The experiment was carried out for three months from April to July 2012.  It was conducted at the Faculty of Agriculture, University of Mulawarman Samarinda.  The method used a factorial Randomized Complete Block Design (RCBD) with five replications.  The first factor was the concentration of Rootone F, consists of four levels, namely: k0 (0 mg L-1 water), k1 (0.50 mg L-1 water), k2 (1.00 mg L-1 water), k3 (1.50 mg L-1 water).  The second factor was the origin of cutting material of Red Betel, consists of two levels, namely: s1 (the base of the runner) and s2 (the center of the runner).  The data was analysed using analysis of variance, and comparison the average of each treatment will be compared used the Least Significant Difference Test (LSD Test).  Resulst of the experiment showed that: (1) there were interaction at k1 level and s1 level for parameter of shoot length at 30 days after planting (DAP), 60 DAP, 90 DAP, leaf number at 60 DAP, 90 DAP, root length in the first node after receiving treatment, the number of root in the first node after receiving treatment, and the number of root in the second node after planting;  (2) the Rootone F concentration treatment influenced significantly on all parameters except the parameter of emerging shoots, leaves number at 30 DAP, 90 DAP, and root length at the second node after receiving treatment;  (3) The origin cutting of Red Betel influenced significantly on the number of roots at the second node after receiving treatment.  The S1 (the base of the runner) treatment gave the best result for parameters: emerging shoots, shoot length at 30 DAP, 60 DAP, 90 DAP, number of leaves at 30 DAP, 60 DAP, 90 DAP, root length at the first node after receiving treatment, root length at the second node before getting treatment, roots length at the second node after receiving treatment, number of roots at the second node before getting treatment, number of roots at the first node after receiving treatment, number of roots at second node before getting treatment, and number of roots at the second node after planting.

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