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Isolasi Mikroorganisme Penambat Nitrogen Simbiotik dari Tanaman Pelindung Sementara pada Perkebunan Teh Dataran Tinggi Eko Pranoto
Jurnal Agro Vol 2, No 2 (2015)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/440

Abstract

Pemupukan merupakan salah satu input faktor pada perkebunan teh yang terus mengalami pening­katan harga. Penurunan biaya pokok dapat diupayakan melalui peningkatan efisiensi dan efektivitas pemupukan. Tanaman teh dapat tumbuh dan berproduksi dengan baik pada ketinggian minimal 700 meter di atas permukaan laut. Seiring pertumbuhannya, tanaman teh juga mem­butuhkan ta­naman pelindung untuk membantu dalam pengurangan evaporasi, mengurangi froze, sebagai wind brea­ker, dan juga sebagai sumber bahan organik. Pada masa Tanaman Belum Menghasilkan (TBM), tanaman pelindung yang dipakai adalah tanaman pelindung sementara yang merupa­kan tanaman Legu­minosa dan bersimbiosis dengan Rhizobium sp. yang dapat memfiksasi nitrogen dari udara dan menghasilkan fitohormon IAA sebagai biokatalisator yang dapat memper­cepat pertumbuhan tanaman. Setiap tanaman Leguminosa bersimbiosis dengan Rhizo­bium sp. yang spesifik dan berbeda-beda pada satu jenis tanaman dan ketinggian tempatnya. Oleh karena itu, perlu dilakukan penggalian potensi alam lokal yang terdapat pada daerah tanaman teh dataran tinggi, khususnya Rhizobium sp. dari tanaman Leguminosa yang merupakan pohon pelindung tanaman teh. Tujuannya adalah agar diperoleh karakter spesies Rhizobium sp. dataran tinggi yang pada tahap penelitian selanjutnya dapat dimanfaatkan untuk meningkatkan kesuburan tanah, meningkatkan produktivitas tanaman, dan akhirnya dapat mengop­timalkan biaya pemupukan pada perkebunan teh. Dari penelitian diperoleh enam spesies Rhizobium sp. dari perkebunan teh dataran tinggi yang diberi kode YA, YB, YC, YD, YE, dan YF. Secara makroskopis terdapat perbedaan pertumbuhan Rhizobium sp. tersebut dengan pertumbuhan tercepat adalah Rhizobium sp. dari tanaman pelindung sementara Tephrosia sp. dan Seisbania sp. pada perkebunan teh. Fertilization is one of input factors on tea plantation that is increasing on the price. The decreasing of the main cost can be done by increasing the efficiency and effectiveness of fertilizing. Tea plant can be grown with high productivity at least at 700 m above sea level. Along with the growth, tea plant need shade tree to eliminate evaporation and froze, and act as a wind breaker and organic material source. Leguminose plants used on young tea is a symbiotic plant with Rhizo­bium sp. This microorganism can fix Nitrogen from the air, and produce fitohormone such IAA functioning as bio-catalist to accelerate the plant growth. Every Leguminose plant has specific symbiosis with Rhizo­bium sp. depending on plant species and elevation. Furthermore, there is a need of exploration of the indigenous Rhizobium sp. from Leguminose shade tree at highland tea plantation. The aim was to get species characteristic of Rhizobium sp. that can be used for the next research to increase soil fertility, plant productivity, and opti­mize the fertilizer cost on tea plantation. The result found six species of Rhizobium sp. with code YA, YB, YC, YD, YE, and YF. Macroscopically, there were differences on the characteristic among them. The highest rate of growth were found for Rhizobium sp. from Tephrosia sp. and Seisbania sp. temporary shade trees on tea plantation.
MARKET STUDY OF COMPOUND FERTILIZER-BASED MINERAL AT TEA PLANTATION IN BANDUNG REGENCY Ridwan Saleh; Eko Pranoto; Jafril Jafril
Indonesian Mining Journal Vol 18, No 3 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 3 October 2015
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (393.066 KB) | DOI: 10.30556/imj.Vol18.No3.2015.263

Abstract

The study of this research is to identify the market possibility of compound mineral fertilizer in Bandung Regency. The methodology used is survey method by using analysis model of market measurements. From the analysis and discussion, it can be identified the estimate of substantial potential of fertilizer market on tea plantation in Bandung Regency of IDR 111,070,309,152 with minimum market is IDR 74,742,993,050 or 67.29% from the total potential of fertilizer market as market penetration index. Meanwhile, the remains of 32.71% is market sen- sitivity area towards fertilizer demand. The estimate of the fertilizer demand is IDR 50,391,725,914 or 67.42% to a minimum market or 45.37% to potential market, and the remains of 54.63% is the market development opportunities in the future. Meanwhile its fertilizer competitor’s are Urea, SP 36, KCL, Kieserite, NPK (sodium, phosphate and potassium), MOP (muriate of potash) and ZK (zheng and potassium). Based on the questionnaire results to 97 respondents about the characteristics and perceptions of fertilizer consumers, it is formulated mix marketing of product aspects such as the physical form of mineral fertilizers is granulees. There are 2 types of packaging, 25 kgs and 50 kgs, and its long shelf life is between 3-6 months. The selling price of end consumers is under IDR 5,000 with payment system can be used in credit. Meanwhile, promotion is carried out directly at the experimental garden, by conducting distribution through two channels, namely cooperatives and agents/ distributors. According to overall analysis results, it can be concluded that by reviewing market and competition aspects, research and development of manufacture technology of compound fertilizer-based mineral is reason- able to be continued to the next stage in the commercialization process of technology.
MARKET STUDY OF COMPOUND FERTILIZER-BASED MINERAL AT TEA PLANTATION IN BANDUNG REGENCY Ridwan Saleh; Eko Pranoto; Jafril Jafril
Indonesian Mining Journal Vol 18 No 3 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 3 October 2015
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol18.No3.2015.263

Abstract

The study of this research is to identify the market possibility of compound mineral fertilizer in Bandung Regency. The methodology used is survey method by using analysis model of market measurements. From the analysis and discussion, it can be identified the estimate of substantial potential of fertilizer market on tea plantation in Bandung Regency of IDR 111,070,309,152 with minimum market is IDR 74,742,993,050 or 67.29% from the total potential of fertilizer market as market penetration index. Meanwhile, the remains of 32.71% is market sen- sitivity area towards fertilizer demand. The estimate of the fertilizer demand is IDR 50,391,725,914 or 67.42% to a minimum market or 45.37% to potential market, and the remains of 54.63% is the market development opportunities in the future. Meanwhile its fertilizer competitor’s are Urea, SP 36, KCL, Kieserite, NPK (sodium, phosphate and potassium), MOP (muriate of potash) and ZK (zheng and potassium). Based on the questionnaire results to 97 respondents about the characteristics and perceptions of fertilizer consumers, it is formulated mix marketing of product aspects such as the physical form of mineral fertilizers is granulees. There are 2 types of packaging, 25 kgs and 50 kgs, and its long shelf life is between 3-6 months. The selling price of end consumers is under IDR 5,000 with payment system can be used in credit. Meanwhile, promotion is carried out directly at the experimental garden, by conducting distribution through two channels, namely cooperatives and agents/ distributors. According to overall analysis results, it can be concluded that by reviewing market and competition aspects, research and development of manufacture technology of compound fertilizer-based mineral is reason- able to be continued to the next stage in the commercialization process of technology.
Co-Authors Jafril Jafril Ridwan Saleh