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Jurnal Penelitian Hasil Hutan
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Search results for , issue " Vol 19, No 3 (2001): Buletin Penelitian Hasil Hutan" : 4 Documents clear
KUANTIFIKASI BEBERAPA PARAMETER KUALITAS GAHARU Wiyono, Bambang; Sumarliani, Neni; Kulsum, Umi; Kusmiyati, Evi
Jurnal Penelitian Hasil Hutan Vol 19, No 3 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2001.19.3.137-146

Abstract

The draft of Indonesia National Standard for garro wood quality has a limitation where parameters used to determine the quality are still qualitative. This has caused a difficulty in assessing the quality of garro wood with different assessor. One effort to reduce this weakness is to quantify some parameters in this draft. In accordance with this, the objective of this research is to improve the draft of Indonesian National Standard for garro wood quality, so the assessment could be carried out quantitatively. The results indicated that fragrant dammar content could be quantified with resin content; weight could be quantified with specific gravity and color could be measured with chroma meter. Further analysis on the parameters showed that there were positive correlation between the quality and these examined parameters, where the increase in the garro wood quality correlated with the increase in the resin content, specific gravity and color value. This proposed draft which seems to have improvement in assessing the quality of garro wood objectively can therefore be suggested for its implementation in reducing human subjectivity.
ALTERNATIF ARANG AKTIF SEBAGAI SOIL CONDITIONING PADA TANAMAN Gusmailina, Gusmailina; Pari, Gustan; Komarayati, Sri; Rostiwati, Tati
Jurnal Penelitian Hasil Hutan Vol 19, No 3 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10444.618 KB) | DOI: 10.20886/jphh.2001.19.3.185-199

Abstract

This paper deals with experimental results of utilizing activated charcoal of bamboo and candle nut as a plan ts soil conditioning. In this regard the plant species for the experiment was Eucalyptus urophylla with respect to the growth of its seedlings. Further, this experiment was intended to evaluate the effect of activated charcoal to as added to the media of Eucalyptus urophylla seedlings on their growth, and to asses the role of activated charcoal in improving soilfertility.The media for the seedling growth consisted of top soil mixed with activated charcoal of either bamboo or candlenut, compost, and mycorrhiza. The mixture was manipulated into various compo­ sition and further regarded as a treatment. The media consisting of only topsoil was also used as a control.The parameters as observed were number of leaves, increase in height of Eucalyptus urophylla seedlings, weight and dry weight ofplant, weight of root portion infected by mycorrhiza, and weight ratio of the top to root portion of the plant (T/R ratio). Further, the analyses of nutrients in the media consisted of N, P, K, Ca, and Mg contents before and after experiment.Result showed that the media containing activated charcoal of bamboo are more preferable than that of candlenut, this is because the former media could stimulate the increase in the height of plant seedlings by 27 percent, enhance the additional number of leaves by 29, increase the T/R ratio by 28 percent, and provide better mycorrhyzza growth than the latter media (i.e. containing activated charcoal of candlenut). Further, when the media containing top soil and activated charcoal of bamboo were added with compost, it could stimulate the growth in 4.8 times as much as height of E. urophylla plant.
PRODUKTIVITAS DAN BIAYA PENYARADAN KAYU DENGAN KERBAU DI JAMBI Dulsalam, Dulsalam; Sukadaryati, Sukadaryati
Jurnal Penelitian Hasil Hutan Vol 19, No 3 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9089.651 KB) | DOI: 10.20886/jphh.2001.19.3.147-164

Abstract

An investigation on productivity and log­skidding cost using buffalo (Bubalus bubalis) was carried out at the area of lnhutani V in Jambi in 1999. The objective is to get reliable information about such productivity and cost. Connected with this purpose, some related data as collected were i.e. volume of skidded log, skidding distance, skidding­working time, buffalo working time, feeding cost, operator cost, and equipment.Volumes of log which was skidded using buffalo ranged between 0.094 and 0.904 m3/tripwith an avverage of 0.484 m3/trip. Skidding distance using buffalo varied from 10 to 2­12 m with an average of 82 m. The working time varied from 11 to 83 minutes with an average of 30 minutes. The log skidding productivity ranged between 0.035 and 1.211 m3­hm/hour with an average of 0.338 m3­hmlhour. Log skidding costs using buffalo ranged between Rp 681 and Rp23.589 m3­hm with an average of Rp 4.375/m3­hm. It is suggested that volume of skidded log in each round trip and skidding distance be not more than 1 m3 and 250 m, respectively.
PENGARUH KADAR STIMULAN TERHADAP PRODUKTIVITAS GET AH PO HON PINUS (Pin us merkussi Jungh. et de Vriese) PADA BERBAGAI TINGKAT UMUR DI DAERAH SUMEDANG, JAWA BARAT Yusnita, Erra; Sumadiwangsa, S; Setyawan, Dendi; Dahlian, Erik
Jurnal Penelitian Hasil Hutan Vol 19, No 3 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5640.851 KB) | DOI: 10.20886/jphh.2001.19.3.165-174

Abstract

Pine (Pinus merkusii Jungh et.de. Vriese) trees have an important role on related industries endeavoring in forest products, due to the widespread utlilization on their potential wood as well as gum matters.Production of pine gum can be affected by the manner of its tapping, kind and percentage of stimulant agent, age and diameter of trees. and genotype factors. Related as such, this investigation was intended lo evaluate the effect of pine tree diameters and stimulant percentage on productivity of pine tapping. In addition, this investigation was also to evaluate whether the tapping orientations (i.e. north­. east­, south­, and west­directions) affected the gum productivity. The main aim was to find out which tapping manner turned out to be the most efficient, the most economic and the safest either lo the trees or to the tapping worker themselves and end up with the optimum and continuity of pine gum production. The pine trees selected for this investigation were the ones growing in Sumedang region, West Java (Indonesia).Results revealed that age of pine trees significantly affecfed the gum production. Tree age of 16, 26 and 31 year old produced gum at 50.15 gr, 81.94 gr, and 9. l7 gr respectively per tree stand. Meanwhile productivity was also affected by tapping orientation, in which the east direcfion of tapping on 16­ year old pine tree at stimulant level of either 15% or 20% brought about the optimum productivity. Likewise, optimum production was obtained from 26­year old pine tree at 15% stimulant percentage with north­ as well as south­direction of tapping, and frorn the 31 year old pine free stands at 25% stimulant by west­direction tapping.

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