PEMANFAATAN LIMBAH CAIR PABRIK KELAPA SAWIT UNTUK MEMENUHI KEBUTUHAN UNSUR HARA DALAM BUDIDAYA TANAMAN JAGUNG (Zea mays L.)
The purpose of this research was to see the opportunity of palm oil waste water utilization for replacing anorganic fertilizer in growing crops. This research was using complete random design in factorial design experiment using 12 kilograms of Podsolik that is mixed and filled in 40 x 40 centimeters plastic bags. Treatment that is used in this research was using waste water Biological Oxygen Demand (BOD5) concentration (1000, 3000, 5000 and 7000) milligram per liter and urea fertilizer with dosage (0, 1, 2 and 3) gram and each treatment was three times replicated. The research was starting from February 28, 2010 to May 9, 2010.Palm oil waste water that was used in this research gave significant difference result. Test result gave different result at all levels of waste water concentration except at concentration of 3000 mg/l with 1000 mg/l. Interaction between treatment given was tested with Duncan method and indicated that optimum dosage that can be used was 0 gram of Urea fertilizer combained with waste water with BOD5 concentration 7000 mg/l.Utilization of palm oil mill’s waste water with dosage 375 ml for 8 weeks after planting period or equivalent with 3 liters was not able to give crop result as good as comparison plant that is planted, but waste water utilization to grow crop give good growth responses especially in maize (Zea mays L.) that is tested. Utilization of palm oil’s waste water was suitable for biomass production purposes but not for crop results. Utilization of palm oil mill’s waste water especially in palm oil mill that has no plantation become one of solutions and efforts in reducing potential environmental damage caused by palm oil mill’s waste water, especially water and waterworks pollutions . It could be happen since waste water was not thrown away to river but utilized to grow crops.
Pengarang : Hendryx Wahyudi, Adnan Kasry, Is Sulistyati Purwaningsih,
APLIKASI PUPUK BOKASHI DAN NPK ORGANIK PADA TANAH ULTISOL UNTUK TANAMAN PADI SAWAH DENGAN SISTEM SRI (System of Rice Intensification)
This research was conducted in the Experimental Field, Faculty of Agriculture, Riau Islamic University and Soil Laboratory, BPTP Riau Province from October 2008 to February 2009. The research aim to study the effect of bokashi and NPK organic fertilizer to N, P, K uptake and rice yield in Ultisol with SRI (System of Rice Intensification). The experimental with Completely Randomized Design for Factorial 4 x 4 were used. The first factor was bokashi fertilizer addition, consisting of four levels (0, 10, 20, 30 ton ha-1) and second factor was organic NPK fertilizer addition, consisting of four levels (0, 200, 400, 600 ha-1). The result of research indicates that: (1) Interactian effect of treatment was significant to N, P, K uptake, productive stem, length of stalk, grain/stalk, weight of dried seed, and weight of 1000 seeds. (2) The best treatment was addition of bokashi (30 ton ha-1) and organic NPK fertilizer (600 kg ha-1) with productive stem (19,0 stems/plant), grain/stalk (210,7 grain), filled out seed (97,63%), weight of dried seed (94,35 g/plant) and weight of 1000 seeds (29,6 g)
Pengarang : Siti Zahrah
ANALISIS SOSIAL EKONOMI MASYARAKAT DESA HUTAN PASCA KEGIATAN HPH PT. SIAK RAYA TIMBER DI KABUPATEN PELALAWAN, PROVINSI RIAU
This study aims to assess the socio-economic development of a rural community, especially guided village (the village nonbinaan ratio), aspects considered include income, education, length of stay at the study site, distance to the socio-economic infrastructure (markets, health centers, etc.. ), ownership of land. Identifying the factors that influence community development programs and analyze around HPH PT. Siak Raya Timber.Prospects expected future community development programs around the forest should always pay attention to those aspects of internal and external of a community forest itself. Some programs must be developed and given priority are: strengthening and enabling/empowering institutional formal/informal, improving infrastructure, improving participatory programs through cooperation among relevant agencies or government policy.
Pengarang : Ruslan Hamid, Zulkarnaini, Zulfan Saam
DISTRIBUSI PENCEMARAN DI PERAIRAN MUARA SUNGAI RIAU, KOTA TANJUNGPINANG, KEPULAUAN RIAU
Tanjungpinang city has developed so rapidly. This development is feared will give bad impact to the quality of the waters of Riau River Estuary because it deals directly with the various activities which taking place in the Tanjungpinang city. This research was carried out by the method of survey in August 2011; aims to determine the potential and the distribution of environmental pollution in the waters of Riau River Estuary. Identification of pollution potential is sourced from marine (marine based) such as fisheries, ship traffic and mooring boats; and from land (land based) mainly urban waste, residential, hotel and restaurant, tourism, agriculture, industry and mining. The majority of water quality is measured has exceeded the quality standard limit of waters Kepmen LH RI. 51/2004 in Appendix III (for marine biota life).
Pengarang : Aras Mulyadi, Sofyan Husein Siregar, Irvina Nurachmi
KOMPOSISI DAN STRUKTUR PERMUDAAN POHON PIONIR BERDASARKAN JENIS TANAH DI KABUPATEN SIAK
The results showed that the soil type Latosol consist of 49 species, dominance of the highest type for Forest Seedlings were Manggis Hutan (Garcinia parvifolia), saplings of Ludai (Sapium beccatum), poles of Mahang (Macaranga gigantea), tree of Sendok-Sendok (Endospermum javanicum). Soil type of Brown Forest Soil consist of 28 species, The highest dominance Seedlings type of Pulai Sudu (Kibatalia boornensis), saplings of Tempinis (Sloetia elongata), pole of Terap (Artocarpus elasticus), tree of Mahang (Macaranga gigantea). Soil types of Organosol consist of 21 species, the highest level of dominance type seedlings Kelat Merah (Sizygium cuminii), Kelat Putih (Sizygium subglauca), Kopi-Kopi (Randia anisophylla), the saplings of Tenggek Burung (Evodia aromatica), the pole of Tenggek Burung (Evodia aromatica), The tree of Mahang (Macaranga hypoleuca). The highest species dominance values index (1) at the level of tree on the soil type of Organosol and Latosol, while the lowest (0.0426) at the level of sapling on the soil type of Latosol. The highest of diversity value index (3.4837) at the level of saplings on the soil type of Latosol, while the lowest (0.0000) at the level of trees on the soil type of Organosol and Latosol. The
highest of Similarity index (23.33) at the similarity between Brown Forest Soil and Latosol at the level of saplings, while the lowest of similarity index (0.00) at the similarity between Latosol and Brown Forest Soil at the level of tree, Organosol and Latosol at the level of poles and tree, Brown Forest Soil and Organosol at the level of seedling, pole and tree.
Pengarang : Edmond Edwar, Rasoel Hamidy, Sofyan Husein Siregar
KANDUNGAN LOGAM BERAT TIMBAL (Pb ) PADA SEDIMEN DAN SIPUT Strombus canarium DI PERAIRAN PANTAI PULAU BINTAN
The investigation was conducted early 2008 at North Bintan island waters, Riau Islands Province. The sample of sediment and snail S. canarium has been taken from four locations those were Busung, Lobam, Sebung, and Tanjung Bakau coastal waters. Metal content analysis conducted by use Atomic Absorption Spectrophotometer (AAS) type Solar 969 AA, both in sediment and snail. The average content of heavy metal Pb in sediment over satation was 2,99 ppm. While the average metal concentration in the sanil was 3.80 ppm. The highest content of heavy metal in sediment and snail was obtained at Lobam coastal waters, which was an area that close to the town, industries, and shipping activities. The was a strong positif relationship between concentration of heavy metal Pb in sediment and in the sail (sig < 0.05).
Pengarang : Syafruddin Nasution, Monika Siska
DAMPAK PENAMBANGAN EMAS TERHADAP KUALITAS AIR SUNGAI SINGINGI DI KABUPATEN KUANTAN SINGINGI PROVINSI RIAU
This study was conducted in March until August 2008. The research site is the Singingi river waters Petai rural areas (upstream) to the village of Tanjung pauh (downstream) sub Singingi Downstream, Kuantan Singingi District, Riau Province. Metode used in this study is a survey method. The analysis in this study is done by using descriptive analysis. Implementation of the analysis performed on Singingi river waters that includes physical and chemical parameters such as temperature, brightness, turbidity, current speed, water depth, TSS, O2, pH, CO2, BOD5, COD, Nitrate and Phosphate. The results showed that gold mining can make Singingi river waters are at a fairly alarming rate in a state that has been contaminated between the categories of mild contaminated with heavy contamination. It can be seen from the results of laboratory analysis of physical and chemical parameters of the level of pollution has passed the threshold value (MAB) in accordance with the PP. 82 In 2001, about Managing water quality and water pollution control such as brightness parameter (9.0 to 19.0 cm.), Turbidity (139.40 to 199.27 NTU), TSS (86.33 to 115.96 mg / l)., BOD5 (14 to 16.6 mg / l) and COD (138.91 - 143.31 mg / l) has exceeded the quality standards of water quality.
Pengarang : T. Iskandar Johan, Ediwarman,