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A. Thomas
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Agriculture, Biological Sciences & Forestry

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PEMUPUKAN NPK MAJEMUK PADA BIBIT JABON MERAH (Anthocephalus macrophyllus (Roxb.) Havil) Luhulima, F. S.; Lasut, M. T.; Kainde, R. P.; Thomas, A.
EUGENIA Vol 23, No 3 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.3.2017.18967

Abstract

ABSTRACT Various doses of NPK fertilization  could increase plant growth. This research studied  the effect of NPK compound fertilizer with some kind of dose on the growth of seedlings of red jabon. This research was conducted at the Laboratory of Silviculture Faculty of Agriculture, University of Sam  Rarulangi which lasted from May until June 2012, The objectives of this study were to determine the effect of compound NPK fertilizers on the growth of seedlings of red jabon. The research used experimental design of Randomized Block Design (RBD), Each treatment was replicated 5 times and each replication consisted of 5 red jabon seedlings. The treatments being given were: (1) without fertilizer (control), (2) 1 g of NPK/ plant, (3) 2 g of NPK/plant, (4)  3 g of NPK/plant and (5) 4 g of NPK/plant.  The results of this research showed that compound fertilizer NPK influence to high growth, diameter,  number of leaves, root volume and dry weight of seedlings red jabon canopy. NPK fertilizer with a dose of 3 g/plant  (D) can increase height growth,  diameter and number of leaves. While the parameters of the root volume and dry weight of the canopy, NPK treatment media with 4 g/plant (E) gives better results.Keywords : NPK fertilization, growth seedling, red jabon ABSTRAK Pemupukan NPK dengan berbagai dosis dapat meningkatkan pertumbuhan tanaman. Dalam penelitian ini dipelajari pengaruh pemupukan majemuk NPK dengan beberapa macam dosis terhadap pertumbuhan bibit jabon merah. Penelitian ini dilaksanakan di Laboratorium Silvikultur Fakultas Pertanian Universitas Sam Rarulangi yang berlangsung mulai Mei s/d Juni 2012. Tujuan dari penelitian ini ialah untuk mengetahui pengaruh pemupukan majemuk NPK terhadap pertumbuhan bibit jabon merah. Penelitian ini menggunakan metode eksperimen Rancangan Acak Kelompok (RAK), setiap perlakuan diulang sebanyak 5 kali dan setiap ulangan terdiri atas 6 bibit jabon. Perlakuan yang diberikan adalah : (1) tanpa pupuk (kontrol), (2) pupuk NPK 1 gram/tanaman, (3) pupuk NPK 2 gram/tanaman, (4) pupuk NPK 3 gram/tanaman dan (5) pupuk NPK 4 gram/tanaman. Hasil penelitian menunjukkan bahwa terdapat pengaruh dosis pupuk majemuk NPK terhadap pertumbuhan tinggi, diameter, jumlah daun, volume akar dan berat kering tajuk bibit jabon merah. Pemupukan NPK dengan dosis 3 gram/tanaman (D)  dapat meningkatkan pertumbuhan tinggi, diameter dan jumlah daun. Sedangkan pada parameter volume akar dan berat kering tajuk, media dengan perlakuan NPK 4 gram/tanaman (E) memberikan hasil yang lebih baik.Kata kunci :  pemupukan NPK, pertumbuhan bibit, jabon merah
PERTUMBUHAN BIBIT SENGON (Paraserianthes falcataria) PADA BERBAGAI MEDIA TUMBUH Sukarman, Sukarman; Kainde, R.; Rombang, J.; Thomas, A.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4104

Abstract

ABSTRACT   This research was carried out in Silviculture Laboratory, Agriculture Faculty, Sam Ratulangi University, from April to June 2012. The aim of this was to examine the influence of growth media combination on height, diameter and number of leaf sengon seedling, using a Randomized Complete Design with one factor. The factor is  top soil, top soil and sekam bakar, and top soil and coco peat. Based on the research, the results of Anaslysis of Variance showed that top soil and combination of top soil and sekam bakar give most number of seedling leaf.  However, growth of height and diameter at all of combination was no significant, but there was trend that top soil give best growth of height and best growth of diameter given by the top soil and combination of top soil and sekam bakar. Keywords : growth media, sengon ABSTRAK Penelitian ini dilaksanakan di Laboratorium Silvikultur, Fakultas Pertanian, Universitas Sam Ratulangi, pada bulan April - Juni 2012. Tujuan dari penelitian ini untuk mengetahui pengaruh kombinasi media tumbuh terhadap pertumbahan tinggi, diameter dan jumlah daun bibit sengon, dengan menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor tersebut adalah tanah lapisan atas, campuran tanah lapisan atas dengan pasir, campuran tanah lapisan atas dengan sekam bakar  dan campuran tanah lapisan atas dengan coco peat. Berdasarkan hasil penelitian, bahwa hasil sidik ragam menunjukkan media tumbuh tanah lapisan atas dan media tumbuh campuran tanah lapisan atas dengan sekam bakar menunjukkan pertumbuhan jumlah daun bibit sengon ang terbanyak. Sedangkan pertumbuhan tinggi dan diameter pada berbagai media yang diuji tidak berbeda nyata, tapi kecendrungan pertumbuhan tinggi tanaman terbaik ditunjukan pada media tumbuh tanah lapisan atas dan pertumbuhan diameter terbaik di tunjukkan pada media tumbuh tanah lapisan atas  dan campuran tanah lapisan atas dengan sekam bakar. Kata kunci : media tumbuh, sengon
PERTUMBUHAN BIBIT SENGON (Paraserianthes falcataria) PADA BERBAGAI MEDIA TUMBUH Sukarman, Sukarman; Kainde, R.; Rombang, J.; Thomas, A.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4103

Abstract

ABSTRACT   This research was carried out in Silviculture Laboratory, Agriculture Faculty, Sam Ratulangi University, from April to June 2012. The aim of this was to examine the influence of growth media combination on height, diameter and number of leaf sengon seedling, using a Randomized Complete Design with one factor. The factor is  top soil, top soil and sekam bakar, and top soil and coco peat. Based on the research, the results of Anaslysis of Variance showed that top soil and combination of top soil and sekam bakar give most number of seedling leaf.  However, growth of height and diameter at all of combination was no significant, but there was trend that top soil give best growth of height and best growth of diameter given by the top soil and combination of top soil and sekam bakar. Keywords : growth media, sengon ABSTRAK Penelitian ini dilaksanakan di Laboratorium Silvikultur, Fakultas Pertanian, Universitas Sam Ratulangi, pada bulan April - Juni 2012. Tujuan dari penelitian ini untuk mengetahui pengaruh kombinasi media tumbuh terhadap pertumbahan tinggi, diameter dan jumlah daun bibit sengon, dengan menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor tersebut adalah tanah lapisan atas, campuran tanah lapisan atas dengan pasir, campuran tanah lapisan atas dengan sekam bakar  dan campuran tanah lapisan atas dengan coco peat. Berdasarkan hasil penelitian, bahwa hasil sidik ragam menunjukkan media tumbuh tanah lapisan atas dan media tumbuh campuran tanah lapisan atas dengan sekam bakar menunjukkan pertumbuhan jumlah daun bibit sengon ang terbanyak. Sedangkan pertumbuhan tinggi dan diameter pada berbagai media yang diuji tidak berbeda nyata, tapi kecendrungan pertumbuhan tinggi tanaman terbaik ditunjukan pada media tumbuh tanah lapisan atas dan pertumbuhan diameter terbaik di tunjukkan pada media tumbuh tanah lapisan atas  dan campuran tanah lapisan atas dengan sekam bakar. Kata kunci : media tumbuh, sengon
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.
Co-Authors JOHAN A. ROMBANG Kainde, R. P. Lasut, M. T. Luhulima, F. S. R. Kainde Sukarman Sukarman Wowor, Andre E.