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All Journal Jurnal Agro Industri Perkebunan
Muhammad Rofiq
Staf Pengajar Jurusan Budidaya Tanaman Perkebunan Politeknik Negeri Lampung
Agriculture, Biological Sciences & Forestry

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Pengaruh Konsentrasi Stimulan dan Intensitas Sadap pada Produksi Lateks Tanaman Karet Seedling (Hevea brasiliensis Muell. Arg.) Charles Muhtaria; Dedi Supriyatdi; Muhammad Rofiq
Jurnal Agro Industri Perkebunan Volume 3 No. 1, Mei 2015
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v3i1.19

Abstract

The lacks of national latex productivity caused by most of rubber trees (85%)managed by folks plantations which have low productivities. Good management and performance of cultivation needs for increase latex productivity, mainly in tapping process. The purpose of this research was to study about effects of ethepon stimulant application on seedling rubber trees,determine the proper tapping intensity, and to find out interaction between stimulant applications with tapping intensitytowards seedling rubber trees.The study have been done during 3 months from September to November 2014 using Randomized Complete Block Design (RCBD) factorial with 2 factor. The first factor wasstimulant concentration (C) with 2 stage, C0 = without stimulant application and C1 = stimulant application as recommended rate. The second factor wastapping intensity (I) with 3 stage. I1= once every two days, I2= once every 3 days, and I3= once every 4 days.Thus obtained 6 treatment combinationwith 4 repeats. The study result shows that the latex and dry rubber production towards seedling rubber trees could be increased by stimulant application, tapping intensity did not give effect on increasing latex volume and dry rubber production, and there is no interaction between stimulant applications with tapping intensity.Keywords: latex production, seedling rubber trees,stimulant, tapping intensityPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/19
Pengaruh Asap Cair Berbahan Baku Pelepah Kelapa Sawit Sebagai Koagulan pada Kualitas Karet Krep Saputra Saputra; Ersan Ersan; Muhammad Rofiq
Jurnal Agro Industri Perkebunan Volume 4 No. 1, Mei 2016
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v4i1.35

Abstract

Public rubber platation Indonesia reached 80% from the vast number of rubber Indonesia. But people rubber low quality, because the use of coagulant is not advice. The researc aims to use liquid smoke from midrib plam oil as an alternative coagulants formic acid to maintain the quality of crepe rubber. Dose of liquid smoke from midrib plam oil 4, 6, 8, 10, 12, and 14% given in each treatment 250 ml latex and will be tested pH, long clotting time, dry rubber content, plasticity retention index (PRI), leves of substance evaporates, until ash, and levels of dirt in acordance with the SNI 1903 : 2000. Tests conducted in te laboratory PTPN VII business Wwy Unit Berulu, Pesawara, Lampung. The results showed a dose of liquid smoke 4 – 12% crepe rubber produce with quality SIR 10, long clottng time dose treadment liquid smoke 14% but quality is only reached SIR 20 and dose treadment liquid smoke from midrib plam oil is best dosage 8% v/v.Keywords: crepe rubber, latex coagulant, liquid smoke, oil palm frondPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/35
Co-Authors Charles Muhtaria Dedi Supriyatdi Ersan Ersan Saputra Saputra