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Potential Analysis of Forest Stand Inventory in Production Forest Management Unit (KPHP) Nunukan IV, Nunukan Regency-North Kalimantan
Get PDFThis research aims at (1) to determined the potential, the structure and speciescomposition of forest stands in KPHP Nunukan IV for the basis of forest governance andmanagement of the plan.This research uses data from forest inventories KPHP that implementedin July 2017. Tally sheet data from the field was classified by the growth rate, diameter class and species group and then was calculated for number of stems and volume. The results of this research are 1) from 50 plots retrieved 79 species. 2) Species compotition is dominated by Shorea with average volume 175,31 m3/ha. 3) Stand structure, the total number of trees 137 stems/ha and volume 245,01 m3/ha. Shorea dominate 90 stems/ha and volume175,31 m3/ha.4) for seedlings obtained INP At the highest level is meranti by 45,93%, Kapur by 14,14 % and Keruing by 14,14%. The highest INP of saplings on the type of Meranti at 66,79%, Guava 30,18 % and 19,84 % Medang. At the highest level of pole INP obtained on the type of Meranti at 94,7 % , Mendarahan 24,01% and Jambu-Jambu 21,09%. At the level of the tree has the largest INP Meranti 88,51%, Medang 30,64% dan Keruing 24,49%
Habitat preference based on herpetofauna spatial distribution in Coal Mining Area of PT Singlurus Pratama, East Kalimantan
Get PDFHerpetofauna communities are formed due to the suitability of the habitat or adaptation process that forces a species to survive. The opening of the land mines result in missing or changing the habitat of herpetofauna. This research was conducted to know the preferences of the herpetofauna of habitat based on spatial distribution of herpetofauna in the vicinity of mining area of PT Singlurus Pratama. The survey was conducted in the area of revegetasi, forest fragmentation, the district adjacent to the mining area, rivers and water spots or natural and man-made on two mining blocks i.e. block Pearl and block independence. The method of election of purposive sampling location with direct search survey methods (Visual Encounter Surveys). The main species found 4 that its spread most widely with populations high. The most frequent species of herpetofauna and many found among others: Eutropis multifasciata, Enhydris enhydris, Fejervarya cancrivora, Polypedates leucomystax and Duttaphrynus melanostictus. Based on the value of the index indicates that the diversity of herpetofauna communities distress with low. Types of herpetofauna more land cover found in the undergrowth, secondary forest and agricultural areas that there are sources of water in it.
Giving Effect Trichoderma sp. In Tomato Plant To Production Factors
Get PDFResearch on the effect of Trichoderma sp. In tomato plants on the factors of production is a study carried out for 4 months starting from June to October 2017. The research was carried out at the Green House of the Faculty of Agriculture, Mulawarman University, Samarinda.This research was conducted using a completely randomized design (CRD) with each treatment repeated 3 times. The treatment is Po: Without Trichoderma sp. / Control treatment; P1: 25 g culture of Trichoderma sp. per polybag; P2: 30 g of mushroom culture Trichoderma sp. per polybag; P3: 35 g of mushroom culture Trichoderma sp. Per polybag; and P4: 40 g culture of Trichoderma sp. per polybag As the second factor, tomato varieties include V1: Lentana; V2: Permata and V3: Ratna. The data observed included the number of planting fruit (calculated from the first harvest to the last harvest for each crop); Average diameter of planting fruit and. The average weight of fresh fruit plantations.The results showed that the dose of 40g Trichoderma sp. most effective in controlling F. oxysporum wilt disease on tomato plants, which can increase tomato crop production by 293.48 g. Variety treatment was not significantly different from all treatments. So that there is no interaction between Trichoderma sp. and tomato varieties
Effect of Vegetation Diversity on Erosion Rate
Get PDFThe climate in Indonesia is a tropical climate with high rainfall, making Indonesia vulnerable to erosion. In addition to high rainfall, vegetation, slope and soil types also affect erosion. This study aims to determine the Important Value of Species (NPJ), the relationship between rainfall and surface runoff and the mass of eroded soil and the level of erosion hazard at different vegetation densities. Important Value The highest types of the three dominating types in plot I were Schima wallichii 115.12%, Macaranga gigantea 69.38% and Cratoxylum sumatranum 44.69%. Whereas in plot II the highest NPJ value of three types dominates, namely Macaranga gigantea 59.13%, Litsea angulata 39.52% and Aquilaria mallacensis 35.37%. The amount of eroded soil mass that occurred in PUE I was 0.13 tons / ha / year and PUE II was 0.19 tons / ha / year. Simple linear analysis of the relationship between rainfall and eroded soil mass at PUE I has a correlation value (r) = 0.79 with the equation Y = -8.34 + 0.39X, whereas in PUE II the correlation value (r) = 0.90 with the equation Y = -12.96 + 0.56X. The danger level of erosion (TBE) in PUE I and PUE II was very mild (erosion rate 90 cm)
The Effect of Compost and Phonska Fertilizer on the Growth and Yield of Sweet Corn (Zea mays saccharata) Varieties of Bonanza.
Get PDFEffect of Compost AndPhonskaTerhadap Fertilizer Plant Growth and Results Sweet Corn (Zea mays saccharata) Varieties Bonanza.The research aims to; determine the effect of compost and fertilizer PhonskaTerhadap Growth And Crop Sweet Corn (Zea mays saccharata) Varieties Bonanza. This study was conducted from April to June 2015, starting from site preparation to harvest. Place the District Education Research Road Teluk Lingga North Sangatta East Kutai. The method used in this study using a randomized block design (RAK) with 2 Factorial and each treatment was repeated 3 times. The treatment is factor 1: compost (K) with 4 levels of treatment are: k0 = no application of compost fertilizer (control), k1 = compost 10 tons / ha, equivalent to 2.53 kg / plot, k2 = compost 20 tons / ha equivalent with 5.06 kg / plot, k3 = compost 30 tons / ha, equivalent to 7.59 kg / plot. Factor 2: NPK fertilizer phonska (P) with 4 levels of treatment are: p0 = without fertilizer phonska (control), p1 = fertilizer phonska 400 kg / ha equivalent to 6,325 g / plant, p2 = fertilizer phonska 450 kg / ha equivalent to 7.906 gram / plant, p3 = fertilizer phonska 500 kg / ha equivalent to 9.487 g / plantAnalysis of data using tables of analysis of variance (ANOVA) with further testing Least Significant Difference (LSD) level of 5%. Parameters used; Plant height (cm) 20 DAT, DAT 30, 40 HST and 50 HST, 2. Age exit male flowers (day), age exit female flowers (days) Total cob crop (fruit), cob diameter (cm), Weight ear cropping (g), fruit Productivity (ton / ha).Results of analysis of variance showed that the interaction effect between compost and fertilizer npkPhonska not differ significantly affected the plant height 30 days after planting, 40 days after planting, 50 days after planting, the male flowers, female flowers, the number of cob, cob productivity. This is because the compost and fertilizer npkPhonska not influence
Effect of Yara Mila Pearl NPK Fertilizer and Nasa Liquid Organic Fertilizer on Growth and Yield of Beans (Phaseolus vulgaris L.)
Get PDFThe objective the research was to study the effect of NPK Mutiara YaraMila fertilizer and Nasa foliar fertilizeras well as their interaction on the growth and yield of stringbean, and to find proper dosage of NPK Mutiara YaraMila fertilizer and concentration of Nasa foliar fertilizer for optimal yield of stringbean.The research was conducted in the village of Rantau Panjang, sub district of Telen of East Kutai Regency. It carried out from March until June 2016. It applied Completely Randomized Block Design with factorial experiment 4 x 4 and three replications. The first factor was the dose of NPK Mutiara YaraMilafertilizer (P) consists of 4 levels, namely: no NPK Mutiara YaraMilafertilizer (p0), 100 kg ha⁻¹ equals to 25,6 g plot-1 (p1), 200 kg ha⁻¹ equals to 51,20 g plot-1(p2), and 300 kg ha⁻¹ equals to 76,80 g plot-1 (p3). The second factor was the concentration of Nasa foliar fertilizer (B) consists of 4 levels, namely: no Nasa foliar fertilizer (b0), 2 ml l-1 water (b1), 4 ml l-1 water (b2), and ), 6 ml l-1 water (b3).Result of the research revealed that : (1) the NPK Mutiara YaraMila fertilizer treatment affected very significantly on the plant lenght at 10, 20, and 30 days after planting, days of plant flowered, days of plant harvest, number of pods, weight of pods, and production of pods; (2) the Nasa foliar fertilizer was affected significantly to very significantly on thethe plant lenght at 10, 20, and 30 days after planting, days of plant flowered, days of plant harvest, number of pods, weight of pods, and production of pods; (3) interaction between NPK Mutiara YaraMila fertilizer and Nasa foliar fertilizer was affected significantly to very significantly on the plant lenght at 10 and 20 days after planting, days of plant flowered, but no significantly on the plant lenght at 30 days after planting, days of plant harvest, number of pods, weight of pods, and production of pods; (4) the highest pods production is attained by the 300 kg ha-1 NPK Mutiara YaraMila fertilizer (p3), namely 38,38 Mg ha-1 or by the 6 ml l-1 water Nasa foliar fertilizer (b3), namely 38,55 Mg ha ̵ ¹
ANALISIS KEBIJAKAN PENGEMBANGAN BUDIDAYA RUMPUT LAUT GRACILARIA SP DALAM TAMBAK DI KECAMATAN MUARA BADAK
Get PDFAquaculture at Muara Badak Subdistrict has been cultivating shrimp and fish. The phenomenon that occurred at recent years ago low productivity of pond due to natural and diseases factors, so farmers switch a policy at cultivation seaweed species Gracilaria sp at ponds.. The aim research to development analysis for cultivation condition of species Gracilaria sp at ponds and reviewing of development policy of seaweed cultivation Gracilaria sp. method combination analysis SWOT and Analytical Hierarchy Process (AHP) used to be set development strategy. The result of alternative strategi earn value of strategy I (SO) 7,044, the strategy II (WO) 6,109, the strategy III (ST) 5,522 and the strategy IV (WT) 4,587. the AHP's strategy of main priority 1 (A2) 0.309, priority alternative 2 (A3) 0.208, priority alternative 3 (A1) 0.168, priority alternative 4 (A5) 0.121, priority alternative 5 (A6) 0.080, priority alternative 6 (A8) 0.054, priority alternative 7 (A7) 0.037 and priority alternative 8 (A4) 0.025
Utilization of Household Wasteas Liquid Organic Fertilizer on Shallot (Allium cepavar. ascalonicum (L.) Back).
Get PDFUtilization of household waste as organic fertilizeris an easy solution, cheap and effective because ithasvery largerole and benefits in terms of environment, sustainable agriculture/food security and socio-culture. The research consisted of two stages: the first was makingorganic liquid fertilizer (OLF) of household waste, followed by laboratory analysis to know OLF quality with reference tominimum technicalrequirements of OLF and compound biochemical fertilizer based on Minister of AgricultureRegulation No. 70/Permentan/SR.140/2011 and the second was OLFapplicationon shallot Tuk Tuk variety. The factorial experiment 2 x 3 was arranged in Randomized Complete Block Design with six times replication. The first factor wasthe OLF dose, consisted of two levels:500 and 1 000 mL polybag-1, while the second was OLFconcentration, consisted of three levels: 0, 50 and 100 mL L-1. Data were analized by Analysis of Variance.The results showed that the OLF contained nutrients quite complete (total N and micro nutrients), negative pathogenE. coli and Salmonella sp., very low metalscontent and higher number of fungi than minimum technical requiremnts ofOLF, although some parameters (total N, micro nutrients and number of bacteria) were lower. The effect of dose, consentration of OLF and the interaction were not significantly difference on variables observed.The quality of organic liquid fertilizerof household waste was sufficient to meet therequirements of Minister of Agriculture Regulation. A dose of 500 mL polybag-1witha concentration100 mL L-1tended to give abetter effect on the growth and yield of shallot bulb
Trend Analysis of Rainfall Data in Magelang District Using Mann-Kendall Test and Modification Mann-Kendall Variation
Get PDFThe objective of the research was to analyzed rainfall trends from 6 rainfall stations Kajoran, Mendut, Muntilan, Ngablak, Salaman and Tempuran rainfall station in different time scales (monthly, 3-months periodicityand annual). Identification homogenity of the rainfall data period 1986-2016 for Magelang district using Rescaled Adjusted Partial Sums (RAPS) methode. The three non-parametric tests, Mann-Kendall (MK), modified Mann-Kendall (MMK), trend free prewhitening Mann-Kendall (TFPW-MK) and Sen’s slope wereemployed to assess significance of trends and detecting magnitude of trends.The results shows that monthly rainfall have no significant trend using MK, MMK, and TFPW-MK test at 0.05 level significance. Rainfall 3-month based January-February-March (JFM) period Kajoran station have negative significant trend with magnitude 19.4 mm/3-month. Mendut station have positive trend for April-May-June (AMJ) period with magnitude 6.75 mm/3-month. No significant trends at 0.05 level significance using MK trend test were detected in annual rainfall for 6 rainfall stations
Keanekaragaman Jenis Pohon Pada Daerah Karst Sangkulirang Mangkalihat Kalimantan Timur
Get PDFKeanekaragaman Jenis Pohon Pada Daerah Karst Sangkulirang Mangkalihat Kalimantan Timur. Kawasan Karst Sangkulirang Mangkalihat merupakan pegunungan karst terbesar di Kalimantan Timur, terletak di Kabupaten Kutai Timur dan Kabupaten Berau dengan total luas keseluruhan 1.867.676 hektar. Penelitian ini dilakukan untuk menganalisis keanekaragaman jenis vegetasi tingkat pohon di beberapa komunitas karst. Areal penelitian ditentukan secara purposive dan sistematik sampling. Berdasarkan hasil penelitian ini, spesies tanaman yang ditemukan sebanyak 162 jenis . Potensi vegetasi terbesar terdapat di Gunung Gergaji dengan nilai individu 740/ha, Indeks keragaman jenis tergolong tinggi dengan nilai 3.17-3.51. Kata kunci : Karst, Keanekaragaman, Sangkulirang Mangkalihat, Vegetas