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Kota manado,
Sulawesi utara
INDONESIA
EUGENIA
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The aims of this journal is to provide a venue for academicians, researchers and practitioners for publishing the original research articles or review articles. The scope of the articles published in this journal deal with a broad range of topics, including: Agronomi, Protection, Soil, Forestry, Agroecotecnology.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 25, No 1 (2019)" : 5 Documents clear
KANDUNGAN UNSUR HARA PADA SERASAH DAUN SEGAR POHON (MAHONI, NANTU DAN MATOA) Wowor, Andre E.; Thomas, A.; Rombang, J. A.
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.31395

Abstract

Plant life cycle requires adequate nutrient content in the planting media environment. Nutrients are naturally influenced by cyclical nutrition itself. Plants in the form of trees play a role in the synthesis of nutrients themselves. Trees play a role in absorbing nutrients in the soil and releasing nutrients through dead or harvested tissue, plant tissues that are most often canceled or killed because the weather is leaves. The nutritional needs of trees are different so the absorption, use and management of nutrients in trees is also different. The purpose of this study is to see the differences in species of Mahogany, Nantu and Matoa trees, which has the potential to contribute to the availability of nutrients. The method used in the study was a completely randomized design (CRD) with three replications. Analysis of nutrient N, P and K was carried out in the laboratory using extraction of perhydrol by wet ingestion of H2SO4+H2O2. The results of the research obtained, that the fresh leaf litter of the nantu tree is the most potential as a nutrient-contributing tree to the surface soil.
PENGENDALIAN CROCIDOLOMIA PAVONANA PADA TANAMAN KUBIS SECARA TERPADU Paat, Frangky J.; Maramis, R.T. D.
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.33743

Abstract

Research on the integrated control of Crocidolomia pavonana on cabbage aims to test various cabbage cultivation techniques, namely the use of organic fertilizers, botanical insecticides, and multiple croping. This research was conducted in Paslaten Sub-District, Tomohon City, from January 2011 to January 2012. The parameters observed included the percentage of attacks, cabbage production, profit analysis of organic and non- organic cultivation, measurement of climate parameters, analysis of total soil N content, total N content of fertilizer organic foliage and chicken manure. This experiment used a randomized block design (RBD) with orthogonal contrast with eleven (11) treatments and four (4) replications. The results showed that the highest attack percentage at 6 mst was found in mitraflora + B. asiatica fertilizer treatment 12.5% chicken manure + B. asiatica 7.14%, farmer habit patterns 5.36%, and campus organic fertilizer treatment + B asiatica 1.79%. The highest percentage of attacks at 8 mst was found in the treatment of mitraflora + B. asiatica fertilizer 37.5%, chicken manure + B. asiatica 26.79%, campus organic fertilizer + B. asiatica 16.07%, farmers' habit patterns 7.14%. The highest attack percentage at 10 mst was found in mitraflora + B. asiatica fertilizer treatment 21.43%, farmer habit pattern treatment 16.07%, chicken manure + B. asiatica 12.5%, campus organic fertilizer + B. asiatica 10, 71%. The highest cabbage production was produced by the treatment of farmers' habit patterns, namely 42.8 kg / plot, followed by the treatment of campus organic fertilizer + B. asiatica with a production rate of 34.6 kg / plot, treatment of chicken manure + B. asiatica 29.5 kg / plot, fertilizer treatment mitraflora + B. asiatica 27.8 kg / plot.
KOMPONEN HASIL JAGUNG MANIS (Zea mays saccharata Sturt) PADA TAILING KECAMATAN TATELU YANG DIBERI PUPUK ORGANIK DAN PUPUK PHONSKA Sondakh, T. D.; Sumampow, D. M. F.; Polii, M. G. M.; Nangoi, Ronny; Mamarimbing, R.; Titah, Tilda
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.31396

Abstract

Tailing is a type of waste produced by mining activities and is characterized by very low physical, chemical, and biological fertility, requiring efforts to amend its quality. The addition of organic materials as a soil ameliorant is one such effort of amendment to enhance success in rehabilitating these degraded areas. The aim of this study is to measure the effects of ameliorant on the growth and yield of sweet corn, determine dosage that will give the best growth and yield, and find out if residual mercury exists in the resultant sweet corn crop. This study used a randomized block design with 6 treatments: A= 40 tons/ha of organic fertilizer; B2= 50 tons/ha of organic fertilizer, C = 60 tons/ha of organic fertilizer, D = 40 tons/ha of organic+ fertilizer, E = 50 tons/ha of organic+ fertilizer, F = 60 ton/ha of organic+ fertilizer. The organic fertilizer used was a mix of 50% water hyacinth + 50% chicken manure, while organic+ fertilizer was a mix of 20% water hyacinth + 20% cow manure + 20% chicken manure + 20% traditional market waste + 20% rice straw. Every treatment was replicated four times, resulting in 24 experimental pots. Variables observed were: 1) cob length, 2) cob diameter, 3) cob weight. Data was analyzed using ANOVA and Tukey’s HSD at a test level of 5%. Results show that organic+ fertilizer increases the yield of sweet corn. A dosage of 60 tons/ha gave the best cobs with a weight of 199,89 grams per cob.
IDENTIFIKASI DAN PENENTUAN KADAR RESIDU INSEKTISIDA PADA KUBIS DAN TOMAT DI MODOINDING DAN RURUKAN Oessoe, Yoakhim Y. E
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.33802

Abstract

This research aims to study 1) Maternal effect on the inheritance of yield components of Manado Yellow Use of Insecticides is one way that is very often made vegetable farmersto cope with pest and plant diseases. However, the use of insecticides may give negative effects for consumers of food containing residues of these poisons.Methodology of research is survey and laboratory. Collecting data in the survey was an interview of 20 vegetable farmers, each 10 from Modoinding and 10 from Rurukan that determined purposively. Laboratory data obtainedwith the ways to identify residues in the cabbage and tomatoes from Modoinding and Rurukan , using Gas Chromatography (GC) according to the analysis method of Pusat Pengujian Obat dan Makanan.Vegetable farmers in Modoinding and Rurukan often apply the insecticide organophospate and pyretroid on cabbage and tomato plants. The residues level in ccabbage and tomato from Modoinding and Rurukan far exceed the value of Acceptable Daily Intake of profonefos allowed.
APLIKASI BEBERAPA PUPUK ORAGANIK PADA TANAH MARJINAL DENGAN INDIKATOR TANAMAN BAYAM DI KOTA MANADO Karamoy, Theffie Lientje; Kumolontang, W. J. N.; Kaunang, Djoni
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.31397

Abstract

The study aims to determine the effect of providing various types of organic fertilizer on the growth of spinach on marginal soils. Held in the Faculty of Agriculture greenhouse for pot experiments. Soil analysis, manure and compost are done in the Laboratory. Research using the RAL method A = Control B = Chicken manure 30 tons / ha, C = Cow Manure 30 tons / ha, D = Pig manure 30 tons / ha, E = Goat Manure 30 tons / ha and F = Compost 30 tons / ha per treatment added with sand. The study was conducted with 3 replications obtained 18 experimental pots. The data obtained were analyzed by analysis of variance and if there was a real influence continued with the LSD test of 5%. The results showed, the provision of various types of organic fertilizer on marginal soils significantly affected the availability of nutrients needed by plants in the growth and production of spinach plants in this case plant height, number of leaves, fresh weight of plants.

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