Methane (CH4) and nitrous oxide (N2O) emissions could be controlled by nitrification inhibitors (NI). Potensi Bahan Alami dalam Menekan Produksi CH4 dan N2O dari Tanah SawahĪuthors: Helena Lina Susilawati, Anicetus Wihardjaka, Nurhasan Nurhasan, Prihasto SetyantoĪbstract: Low nitrogen efficiency is one of the sources of greenhouse gas (GHG) emissions from rice fields.Keywords: albizia, defoliator insect, Fabaceae, important pests, invasive alien species (Lepidoptera: Tortricidae) identified as important pests that have not been reported in the other research. (Lepidoptera: Tortricidae), and Adoxophyes sp. (Hemiptera: Margarodidae), Choristoneura sp. Furthermore, Hulodes caranea (Lepidoptera: Noctuidae), Margarodes sp. Larvae of Eurema blanda (Lepidoptera: Pieridae) became an important pest causes leaf defoliation. There was no difference in abundance and diversity of phytophagous insects on albizia from Java and Hawaii. A total of 67 phytophagous insects were collected, 57 species in albizia from Java and 54 species in albizia from Hawaii. Identification of insects was conducted in the Laboratory of Insect Biosystematics, IPB. Observations were conducted every 2 weeks until 32 weeks after planting. Total number of tree sample was 160 trees. The experiment was arranged in a completely randomized block design using seed origin as a treatment (albizia Java and Hawaii) with 4 replicates. The experiment was conducted in Carangpulang, Dramaga, Bogor. The purpose of this study was to determine the phytophagous insects on albizia from Java and Hawaii in seedling in Bogor. The controlling of invasive species using biological control is an effective method. Grimes dari Jawa dan Hawaii di Persemaian di BogorĪuthors: Yendra Pratama Setyawan, Purnama Hidayat, Hermanu Triwidodo, Kenneth PuliaficoĪbstract: Albizia (Falcataria moluccana) cultivated in Indonesia for timber plantations can increase the farmer’s income, even though albizia became an invasive alien species that can cause the economic and ecological losses. Keanekaragaman Serangga Fitofag pada Sengon Falcataria moluccana (Miq.)īarneby & J.W.Keywords: authentication, LDA, PCA, PLS regression, UV-vis spectroscopy These results showed that UV-vis spectroscopy and chemometrics are suitable for authentication of Codot specialty coffee with RMSEP = 2,68% and RPD in prediction of 6,49. Using PLS regression, a PLS model was developed to quantify the percentages of Codot coffee adulteration and resulted in high of coefficient of determination both in calibration and validation (R2kal = 0,99 and R2val = 0,98). The LDA model was used to classify the new samples and resulted in a sensitivity (SEN) of 100%, specificity (SPEC) of 76,67%, precision (PREC) of 78,13%, and accuracy (ACC) of 87,27% could be obtained. The classification model was developed using LDA with 90,91% of accuracy could be obtained. The result showed that the pure and adulterated samples could be discriminated along PC1 and PC2 axis. The spectral data of coffee samples were acquired using a benchtop UV-visible spectrometer in the range of 190-1100 nm using a transmittance mode. The extraction procedure was performed with hot distilled water (98☌). All samples were 0,29 mm in particle size. The adulterated Codot coffee samples were intentionally created by adding a regular coffee (non-Codot coffee) into pure Codot coffee samples with three levels of adulterations: low (10-20%), medium (30-40%), and high level (50-60%). A total of 330 samples of pure and adulterated Codot coffee was prepared. In this research, an authentication study for the Codot ground roasted coffee was conducted using UV-vis spectroscopy and chemometrics. Penggunaan UV-Vis Spektroskopi dan Kemometrika untuk Uji Keaslian KopiĪuthors: Meinilwita Yulia, Kurnia Rimadhanti Ningtyas, Diding SuhandyĪbstract: Codot coffee from Tanggamus, Lampung is one of Indonesian specialty coffee with a very limited production.Published by Bogor Agricultural University of Marine Fisheries Technology and Management ( Followers: 2)
Jurnal Pengolahan Hasil Perikanan Indonesia
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Manajemen Hutan Tropika ( Followers: 1) Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan
Jurnal Ilmu Pertanian Indonesia ( Followers: 1) Jurnal Ilmu dan Teknologi Kelautan Tropis of Regional and Rural Development Planning of Biosciences ( SJR: 0.196, CiteScore: 1) Publisher: Bogor Agricultural University (Total: 24 journals) Showing 1 - 24 of 24 Journals sorted alphabeticallyĪgrokreatif Jurnal Ilmiah Pengabdian kepada MasyarakatĪlbacore : Jurnal Penelitian Perikanan Laut