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Yosefina Mangera
Jurusan Teknik Pertanian FAPERTA UNMUS
Agriculture, Biological Sciences & Forestry Veterinary

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POTENSI BERBAGAI JENIS VEGETASI SEBAGAI HIJAUAN PAKAN TERNAK DI PADANG PENGGEMBALAAN KAMPUNG SOTA, KABUPATEN MERAUKE Irine Ike Praptiwi; Diana Sri Susanti; Aloysia Tenny Damayanti; Yosefina Mangera; Nafiatul Umami
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.v7i1.584

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
KEMAMPUAN TANAMAN KAYU APU (Pistia stratiotes) SEBAGAI MEDIA FITOREMEDIASI AIR BELERANG DENGAN PERLAKUAN AERASI UNTUK KUALITAS AIR PERTANIAN Yosefina Mangera; Mega Ayu Yusuf
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.
Co-Authors Aloysia Tenny Damayanti Diana Sri Susanti Irine Ike Praptiwi, Irine Ike Mega Ayu Yusuf Nafiatul Umami