Respon Pertumbuhan Bibit Jeruk Manis (Citrus sinensis L.) terhadap Pemberian Limbah Solid Industri Kelapa Sawit

Limbah solid merupakan limbah yang dihasilkan dari pembuatan CPO (Crude Plam Oil) minyak kelapa sawit di PKS (Pabrik kelapa sawit) yang menggunakan sistem decanter. Pada penelitian ini limbah solid dimanfaatkan sebagai media tanam jeruk manis. Tujuan dari penelitian ini adalah mengetahui cara pembuatan media tanam dengan penambahan limbah solid kelapa sawit dan mengetahui respon pertumbuhan bibit tanaman jeruk pada fase vegetatif pada media tanam yang ditambahkan limbah solid kelapa sawit. Pada penelitian ini, menggunakan 5 perlakuan yaitu F0 (Tanpa Pemberian solid kelapa sawit (Kontrol)), F1 (Pemberian solid 120 g/polibag), F2 (Pemberian solid 160 g/polibag), F3 (Pemberian solid 200 g/polibag), F4 (Pemberian solid 240 g/polibag). Parameter yang diamati adalah tinggi tanaman, jumlah helai daun, dimeter lingkar batang, dan panjang akar. Berdasarkan hasil penelitian limbah solid kelapa sawit memberikan hasil lebih baik dibanding kontrol pada semua parameter, namun tidak berbeda signifikan secara statistik. Perlakuan F1 memberikan rata-rata tinggi tanaman lebih baik, yaitu 9,3 cm dan rata-rata helai daun sebesar 6,15 helai.

Inventory of Weeds In Oil Palm Plants (Elaeis guineensis Jacq.) In Balai Pengawasan dan Sertifikasi Benih Perkebunan

Weeds have a direct influence on the growth and yield of oil palm production, resulting in various losses. Weed control aims to suppress growth or destroy weeds in plantations. In order to reduce the risk of failure in weed control, weed inventory activities need to be carried out first. Weed inventory is an activity to collect data on the types of weeds, and is expected to reveal potential and information about weeds. The purpose of this study was to identify and recognize the diversity of weed species that can be used as the basis for weed control in the productive phase of oil palm plantations at the Plantation Seed Monitoring and Certification Center. The method used in this study was a descriptive qualitative approach. The results of the study found 2 divisions, 4 classes, 13 orders, 18 families, 22 genera and 22 plant species on oil palm plantations with narrow, broad, and ferns. In general, based on the results of the inventory, broadleaf weeds were more common than narrow leaf weeds and fern weeds.

Analysis Of Oil Losses at Press Station In PT. Palmina Utama

The press station is the main station for quoting oil from the pulp of palm oil (CPO). In the screw press, there are several things that need to be considered in order to determine the success of the extraction process, namely the percentage level of oil losses which is one of the benchmarks for the success of extraction at the press station. Some things that can affect the percentage level of oil losses at the press station are the amount of pressure on the press machine and the level of chopping blades in the digester. This observation is carried out by direct observation method at PT. Palmina Utama, using a purposive sampling method.samples taken for the analysis of oil losses at this press station are in the form of fiber, the persentage value of oil losses is determined by exstraction using soxhlet with n-hexane solvent. Samples for analysis were taken from five press machines at the press station in the form of fiber and taken three times each at three points, namely the left side, the middle side and the right side with an interval of two hours, then the samples were mixed and weighed as much as nine to ten gram. The highest oil losses in February were 4.48% and the lowest losses during February were 4.105%. Based on statistical analysis, that F-Count is smaller than F-table 5% and 1%. Thus, pressure does not affect at the percentage of oil losses.

Potential of Wetlands Plants as Organic Fertilizer

Some plants in swamps are a problem because the growth rate is relatively fast, such as water chestnut (Eleocharis dulcis), kalakai (Stenochlaena palustris), and water hyacint (Eichornia crassipe)s. Therefore, various technologies are always traced to increase the use value of these swamp plants. One of the uses is by making organic fertilizer to support the availability of nutrients for plants. The purpose of this study is to utilize swamp plants and compare the pH, C-organic, N-total and C / N ratio values ??of each swamp plant. The study was conducted at the Soil Laboratory of the Faculty of Agriculture, University of Lambung Mangkurat in October - November 2014. The study used a single, completely randomized design (CRD). The factors studied were swamp plant organic material consisting of 3 treatments, namely: B1 (rat purun); B2 (kalakai); and B3 (water hyacinth). Each treatment was repeated 6 times, so that 18 experimental units were obtained. The results showed that water water hyacint had the highest N-total and the lowest C / N ratio compared to kalakai and water chestnut.

Utilization of White Glutinous Rice Fermentation as A Coagulant of Natural Rubber Latex

Clumping is one of the important stages in the processing of latex. This stage is the first step to produce a coagulum. The purpose of this study was to determine the potential of white sticky water tape as a latex coagulant and determine the effect of white sticky water tape on the speed of clumping, color, pH, texture, levels of latex dry rubber. Tests were carried out in 4 treatments, namely R0: 1 ml of 10% formic acid solution added to 100 ml of latex; R1: 1 ml of water tape is added in 100 ml of latex; R2: 5 ml of water tape is added in 100 ml of latex; R3: Water tape as much as 10 ml was added to 100 ml of latex Then the latex parameters were observed including clumping speed, pH, texture, color and levels of dry rubber (KKK). The results of this study indicate that the administration of white sticky tape water does not reduce the pH of the latex to the isoelectric point 4.7. Nevertheless latex clumping still occurs. This is thought to be due to the alcohol content in the white sticky water tape. Based on observations, the R2 treatment is the best treatment that produces a slippery and hard coagulant texture similar to the R0 (formic acid) treatment. Whereas the latex texture in R1 and R3 treatments is softer. The addition of white sticky tape water coagulant produces latex color to milky white while formic acid produces white-yellowish color. The R2 treatment had an average KKK 41.63% lower than using formic acid, which was R0 45.96%. Although the white sticky tape water coagulant has not been able to meet the KKK quality standards of 20%.

The Inventory of Weed in Rubber Plant (Hevea Brasiliensis) at Balai Pengawasan dan Sertifikasi Benih Perkebunan

The purpose of this research is to know the botanical and morphology of any weeds that attack the rubber plant and weed control doneAt Balai Pengawasan And Sertifikasi Benih Perkebunan. The method used is descriptive method with data collection techniques through observation, interview and documentation. Based on the observation it can be seen that the weeds that attack the rubber plant in the Plantation Monitoring and Certification Seed in morphology are weeds, including the broad-leaved plant species and the puzzles such as jukut pahit (Axonopus compressus), Ara Sungsang (Asystasia ganggetica L), Senduduk (Melastoma malabratichum), Babadotan (Ageratum conyzoides), Imperata cylindrica, Putri Malu (Mimosa pudica), Meniran (Phyllanthus niruri), Jukut Pendul (Kyllinga brevifolia). By way of control is done spraying using Gramoxone contact herbicide with a dose of ± 28 ml per 1 tank hands sprayer solo contents of 14 liters of water for to the field of weeds attacked rubber plantation. At the Plantation Regulatory Monitoring and Certification Center for 0.5 hectares of land required 252 ml herbicide. Anddoneint spraying when the weather is sunny.

Soil Conservation on Oil Palm Plantations Of Mature in Pt. Citra Putra Kebun Asri Jorong Tanah Laut

Observations of soil conservation are carried out using qualitative method with descriptive, wwhere field activities include observations of vegetatif method, mechanic method and chemical method. Oil Palm plantation of PT. Citra Putra Kebun Asri uses 2 soil conservation methods, that is vegetative and mechanical methods. Vegetative method is carried out by utilizing litter (mulching), namely by arranging the oil palm fronds of prunning result in dead gawns with the aim of supressing growth of weeds and prevent erosion. Mechanical method is done by applying trenches and rorak. Trenches just made in low areas with the aim of being a drainage channel for block are not inundated and making rorak as a shelter for crop residues in the dry season to keep it moist.

Hydroponic Installation Nutrient Film Technique (NFT) System in Politeknik Hasnur

The development of aquaculture with a hydroponic system is now more and more chosen by the community because of the increasingly limited land, but also comparable to the increasing demand for water. Hydroponics with the Nutrient Film Technique (NFT) system can be used as a solution to the water needs needed in the cultivation of hydroponics plants. This study aims to design the hydroponic installation of the NFT system and grow plants in the NFT system. The study was conducted with the stages of making the hut, making the installation, seeding, making nutritional solutions and transferring seed to the installation. The research will be conducted for five months. Descriptive research with qualitative data obtained is the way of making the NFT system, plant growth speed and the amount of water needed. Making the installation begin with the construction of the hut and shade then arranges the installation. For lettuce, the harvest time is 38 days dan tomatoes 50 days after the plants are moved to the plant. The need for water in the NFT hydroponic system is 190 liters.

Physical and Chemical Characteristics of Solid Waste from Crumb Rubber Industry with Different Incubation Periode

Demand for crumb rubber and block rubber from abroad to increase thus encouraging crumb rubber agro industry factories in Indonesia to increase of the production, but this is not matched by environmental quality that should be increasingly considered. Pollution that appears to be seen in the form of changes in the color of water and solid material from the washing of latex crumbs as sludge which leaves a damaged latex, mixed with wood and other inorganic materials. In the process of handling liquid waste in Waste Water Treatment Plant (WWTP) ponds, liquid waste can be recycled so that it can be reused to wash lumps and latex crumbs, but solid waste in the form of activated sludge at the bottom of the WWTP ponds containing damaged rubber with inorganic materials has become a polluter in the factor. In this research, the characteristics of the solid waste are analyzed to be used as soil amendment material of determining the appropriate length of incubation different, so that the waste is indeed feasible as soil amendment. This research was conducted at August 2019 to February 2020 with compare the results of the three treatment levels for the incubation period of solid waste with code T1 = 60 days after being removed from the WWTP pond; T2 = 120 days after being removed from the WWTP ponds; T3 = 180 days after being removed from the WWTP ponds, which was four repeated. Method in parametric research as temperature with mercury thermometer, color of waste compare with Munsell's soil, texture of material with skin sensing method, particle size with 1 inch sieve, moisture content with gravimatric method, and bulk density with sample ring method, as well as chemical properties of solid waste with observational variables i.e. pH (H2O) is measured with digital pH meter, Fe-total with the ortho-phenanthroline spectrophotometry method, Lead (Pb) b with the spectrophotometric HNO3 method, C-organic with the Walkley-Black spectrophotometric method, N-total with the Kjeldahl’s method, P2O5 with the Olsen’s spectrophotometric method, C-organic with the Walkley-Black’s spectrophotometric method, K2O with Morgan’s spectrophotometry method, and C / N ratio with dividing the index C of N. The best treatment is based on the approach required by SNI 19-7030-2004 and the Decree of the Minister of Agriculture No. 261 / KPTS / SR.310 / M / 4/2019. From the results of this study it was concluded that the solid waste in the T2 treatment was the best treatment that has physical properties with a temperature character of 28.6 °C, a blackish gray color with an index of 5BG 4/1, a fine textured soft lumpy, with particle size <25 mm, content water (8.7%) and bulk density (0.81 g.cm-3), as well as chemical properties with a pH of 7.02; Fe-total (0.00104 ppm); Lead (Pb) <0.01 ppm; C-organic (11.21%); N-total (1.37%); P2O5 (1.33%); K2O (0.56%) and C / N ratio of 8.18.