Articles

Found 13 Documents
Search

ANALISIS VEGETASI JENIS POHON DI KAWASAN HUTAN KAMPUNG WASUR PADA TAMAN NASIONAL WASUR DISTRIK MERAUKE KABUPATEN MERAUKE Mangera, Yosefina
AGRICOLA Vol 1, No 1 (2008)
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study is aimed to find out the composition, structure, and the ecological value of the types of trees in the exploitation zone of the National Wasur Park. The method used was square method, documentation, and literary study. Type variety index of Shannon-Wiener was employed to determine the variety types of the trees. The result of the research and data analysis showed that at the big tree category there were 16 types, 8 families, and 76 individuals. Meanwhile, at the small tree category, there were 12 types, 8 families, and 71 individuals. Analyzing the height structure, it was found out that Lophostemon lactifluus (F. Muell) Peter G. Wilson & J.T. Waterh (INP 54.74%) was the highest INP at the big tree category. Meanwhile, at the small tree category, the highest INP was Planchonia careya (F. Muell) R. Knuth (INP 68.82%). Therefore, the vegetation in the exploitation zone was considered as the Lophostemon lactifluus (F. Muell) Peter G. Wilson & J.T. Waterh and Planchonia careya (F. Muell) R. Knuth. The type variety index (H’) at the big tree and the small tree category were 2.43 and 2.9 respectively. These indexes were considered low. The ecological values of the forest were as the water diffusion area, system prop of life, and habitat of some animals such as various insect types, mammals and birds. Key words: analisis vegetasi, tipe tumbuhan, desa Wasur.
ANALISIS VEGETASI JENIS POHON DI KAWASAN HUTAN KAMPUNG WASUR PADA TAMAN NASIONAL WASUR DISTRIK MERAUKE KABUPATEN MERAUKE Mangera, Yosefina
AGRICOLA Vol 1 No 1 (2011): Volume 1, Nomor 1, Maret 2011
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study is aimed to find out the composition, structure, and the ecological value of the types of trees in the exploitation zone of the National Wasur Park. The method used was square method, documentation, and literary study. Type variety index of Shannon-Wiener was employed to determine the variety types of the trees. The result of the research and data analysis showed that at the big tree category there were 16 types, 8 families, and 76 individuals. Meanwhile, at the small tree category, there were 12 types, 8 families, and 71 individuals. Analyzing the height structure, it was found out that Lophostemon lactifluus (F. Muell) Peter G. Wilson & J.T. Waterh (INP 54.74%) was the highest INP at the big tree category. Meanwhile, at the small tree category, the highest INP was Planchonia careya (F. Muell) R. Knuth (INP 68.82%). Therefore, the vegetation in the exploitation zone was considered as the Lophostemon lactifluus (F. Muell) Peter G. Wilson & J.T. Waterh and Planchonia careya (F. Muell) R. Knuth. The type variety index (H’) at the big tree and the small tree category were 2.43 and 2.9 respectively. These indexes were considered low. The ecological values of the forest were as the water diffusion area, system prop of life, and habitat of some animals such as various insect types, mammals and birds.
PENGARUH KERAPATAN TANAMAN DAN KOMBINASI PUPUK NITROGEN ANORGANIK DAN NITROGEN KOMPOS TERHADAP PRODUKSI GANDUM Mangera, Yosefina
AGRICOLA Vol 4 No 1 (2014): Volume 4, nomor 1, Maret 2014
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Research objective is  to evaluate wheat growth by  several plants density and   combination of inorganic nitrogen and compost nitrogen. The research was conducted in Sirapu Village, SemanggaDistrict, at Merauke Regency and used Randomized Complete Block Design with 3 blocks replication. The first factor was plant density of three level, i.e., 25 cm x 10 cm, 25 cm x 15 cm, 25 cm x 20 cm.The second factor was combinationof inorganic nitrogen and compost nitrogenconsists of six levels, i.e., compost 0% + urea 0%, 0% compost + 100% urea, 25% compost +75% urea, 50% compost + 50% urea, 75% compost + 25% urea, 100%compost + 0%. This experiment resultshowedthatthere was nosignificant interactionbetweenthe densityandthe combination ofinorganicnitrogenand nitrogencompostforallcomponents of production ofthe wheat. In plant densityof  25 cmx 15cmora combinationof nitrogen inorganic and compost nitrogen of75% urea +25% compost, respectivelygivethe besteffectto support the productiongadum
KANDUNGAN KIMIA BIOMASA DAN KOMPOS DARI TUMBUHAN AIR KIAPU (Pistisia statiotes L.) YANG TUMBUH DI KAMPUNG WASUR, KABUPATEN MERAUKE Wahida, Wahida; Mangera, Yosefina; Latuperisa, Irianis Luky
AGRICOLA Vol 3 No 1 (2013): Volume 3, Nomor 1, Maret 2013
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the chemical content of biomass and compost of the aquatic plants (Pistia stratiotes L.) at the Wasur village, Merauke. Benefits to be gained by the study is obtaining information about the content of the proximate and organic matter of Pistia plants at the Wasur village, so the function can be optimized. The results of chemical content of biomass and compost Pistia showed that plants have the potential to be used as feed additives for monogastric livestock, especially cattle as well as additional materials for composting.
ANALISIS PERTUMBUHAN TANAMAN GANDUM PADA BEBERAPA KERAPATAN TANAMAN DAN IMBANGAN PUPUK NITROGEN ANORGANIK DAN NITROGEN KOMPOS Mangera, Yosefina
AGRICOLA Vol 3 No 2 (2013): Volume 3, Nomor 2, September 2013
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Objective of the experiment to evaluate wheat growth of some plant density and the proportionof inorganic nitrogen and compost nitrogen.The research was conducted in the Sirapu Village, Semangga District, Merauke Regency using Randomized Complete Block Design with 3 blocks as replication. The first factor was plant density of three level, i.e., 25 cm x 10 cm, 25 cm x 15 cm, 25 cm x 20 cm.The second factor was proportion of inorganic nitrogen and compost nitrogen consists of six levels, i.e., compost 0% + urea 0%, 0% compost + 100% urea, 25% compost +75% urea, 50% compost + 50% urea, 75% compost + 25% urea, 100%compost + 0%.The experiment results showed that there was interaction between plant density and the proportion of inorganic nitrogen and compost nitrogen for plant dry weigh and crop growth rate parameters.Plant density in 25 cm x 15 cm and proportion of inorganic nitrogen and compost nitrogen in 25% compost +75% urea showed the best effect in plant dry weight and crop growth rate at 42 to 63 DAP.
POTENSI BERBAGAI JENIS VEGETASI SEBAGAI HIJAUAN PAKAN TERNAK DI PADANG PENGGEMBALAAN KAMPUNG SOTA, KABUPATEN MERAUKE Praptiwi, Irine Ike; Susanti, Diana Sri; Damayanti, Aloysia Tenny; Mangera, Yosefina; Umami, Nafiatul
AGRICOLA Vol 7 No 1 (2017): Volume 7 Nomor 1, Maret 2017
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Forage availability become a major issue in the provision of feed, especially during the dry season. The purpose of this study is to identify the type of vegetation in the grazing fields that have been used by people in the village of Sota. The data were taken from the area around the used rice field in the village of Sota. The forage classified as grass, legume and forbs. The method applied in the research by observing the botanical composition there at several observation points. The forage was taken as the sample, then calculated the production and analyzed the content of dry material. The results showed that the vegetation found in the used rice fields in the village of Sota, there are 33 vegetation, consisting of legume, grass and forbs 3, 61 and 36%. Vegetation types most commonly found are Fimbristylis genus, Paspalum and species of Calopogonium mucunoides the SDR value of 9.88; 9.3 and 9.74%. Composite dry matter production of 757.62 kg /ha with measuring capacity 1,68 AU
Conservation of Soil Moisture Using Mulch of Green Bean Plants (Vigna Radiata) Suburika, Frederikus; Mangera, Yosefina; Wahida, Wahida
Musamus AE Featuring Journal Vol 1 No 1 (2018): MAEF Oktober
Publisher : Faculty of Agriculture, Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/maef-j.v1i1.1609

Abstract

The aim to this study was to determine the effect of plastic silver mulch and rice straw mulch on soil moisture conservation of green bean so that the plant can grow in dry season with enough water. The method used in this study was a randomized block design with three treatments: no mulch (T0), plastic silver mulch (T1) and rice straw mulch (T2). The parameters observed were physical soil of initial and final research, soil moisture measurements every 3 days, as well as growth and crop production parameters including plant height, number of seeds in pods, 100 seeds weight, sample plant production and total production. The results showed that the physical of soil analyzed were clay textured soil, preliminary porosity 60.77 and at the end of the study increased to 77.50%, organic matter 1.52%, initial bulk density 1.04 g/cm3 at the end of the study decreased to 0.60 g/cm3, soil permeability of 7.77 cm / hour and available water is 13.95%. The use of rice straw mulch from the beginning to the end of the study showed the best water content while the use of plastic silver mulch and no mulch showed water content not much different. The use of palstic silver mulch gives the highest yield of the best crops on 14 HST measurements where the plastic silver mulch differs markedly by the rice straw mulch and no mulch. The yield of green beans produced in the treatment of plastic silver mulch using the best results with a total production of 2.00 tons/ha, this result is significantly different from no mulch but not significantly different of rice straw mulch. Rice straw mulch is better used for soil conservation because it can improve soil aeration, retain water, prevent soil erosion, and increase organic matter on the soil.
KEMAMPUAN TANAMAN KAYU APU (Pistia stratiotes) SEBAGAI MEDIA FITOREMEDIASI AIR BELERANG DENGAN PERLAKUAN AERASI UNTUK KUALITAS AIR PERTANIAN Mangera, Yosefina; Yusuf, Mega Ayu
AGRICOLA Vol 7 No 1 (2017): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v7i1.585

Abstract

Groundwater wells (sulfuric water) in Merauke is potentially high even in dry season. However, the high element of sulfur (S) in a plant can cause potion even death. The research is to determine the ability of lettuce (Pistia stratiotes) as a media of phytoremediation to decrease sulfur with an aeration treatment to fulfill the agricultural requirement. The treatment methods are closure surface of sulfuric acid with the lettuce. The treatments are namely without a closure, 25% closure, 50% closure, and 100% closure, where each treatment are using an aerator. The study is divided for into two stages. There are the early stage research (acclimatization) and the main research. Analysis of data includes the time and the corelation graph. On acclimatization stage, it was found that the concentration of SO4 was declining at 216 hours. The 50% of closure treatment showed that the lowest concentration of SO4 was at 81 mg /l. All of the treatments showed that the concentrations  of  H2S were declined on 48 hours on the main research.There were caused by the aerator that brings an oxidation process within the aeration. H2S oxidation produces SO4, so that the concentration of SO4 on control and all treatment have increased until the observation in 240 hours. From these results it can be concluded that the Pistia stratiotes is not required as phytoremediation agent in improved the water quality of sulfur. The award of oxygen (aeration) have been effective in reducing the concentration of S in the sulfur water to match the quality of agricultural water.
Analisis Mutu Hasil Gabah dan Beras Padi Gogo Aromatik Varietas Inpago Unsoed 1 Ramadhani, Siti Hasdiyanti; Suryaningsih, Ni Luh Sri; Mangera, Yosefina
AGRICOLA Vol 8 No 1 (2018): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v8i1.2098

Abstract

Tujuan Penelitian adalah untuk mengetahui kualitas mutu gabah dan beras dari padi Varietas InpagoUnsoed 1. Metode penelitan yang digunakan adalah metode pengumpulan data yaitu data primer dandata sekunder. Data primer yaitu hal yang akan diamati dalam penelitian ini seperti kadar air gabah,densitas gabah, benda asing, gabah hampa, gabah retak atau rusak, Setelah gabah digiling pengamatanyang dilakukan adalah presentase beras kepala, beras patah, butir menir, butir kapur, butir kuningrusak dan rendemen beras giling. Hasil penelitian menunjukkan bahwa pengamatan mutu gabahVarietas Inpago Unsoed 1 memiliki kadar air giling 13,33%, densitas gabah 0,57g/ml, dan bobot 1000butir 27,63 g. sedangkan untuk penentuan mutu beras Varietas Inpago Unsoed 1 memiliki presentasebutir kepala 73,49%, butir patahnya sebesar 13,92%,dan butir menir 12,34%. Mutu giling berasvarietas Inpago Unsoed 1 ini termasuk rendah. Rendahnya mutu beras ini disebabkan karenapersentase beras kepala rendah, sedangkan persentase butir patah dan butir menir tinggi. Rendemenberas gilingnya sebesar 51,23%.
Blower Modification to Increase Bran Removal on Rice Polisher Ngumbara, Ganda Guna; Andriyono, Andriyono; Mangera, Yosefina
AGRICOLA Vol 8 No 2 (2018): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan merancang alat bantu untuk mengatasi penyumbatan pada pengeluaran dedakdan mengetahui kecepatan alat tersebut. Metode penelitian ini terdiri dari langkah pertama (studiliteratur, pembuatan proposal, perlengkapan dan pasokan bahan serta desain alat bantu blower), keduaadalah pembuatan alat bantu dedak, ketiga adalah tes (mengukur angin kecepatan blowermenggunakan anemometer, membandingkan tingkat kebersihan beras dari bekatul, dan rekapitulasipembuatan alat). Hasil yang diperoleh dalam kondisi lapangan pulley 3,5 inci 16,6 m / s memilikikecepatan angin sedang sehingga menir tidak banyak terbuang. Persentase beras utuh setelahmenggunakan blower pada pengamatan kedua yaitu menggunakan katrol 2,5 inci sebesar 98,12%,yang ketiga menggunakan katrol 3,5 inci sebesar 97,56%, yang keempat menggunakan katrol 4,5 incisebesar 95,70% dan perlakuan sebelum menggunakan blower 89,59%. Biaya pembuatan alat adalahRp2.505.500.