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Kainde, R. P.
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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
ANALISIS KANDUNGAN TIMBAL (Pb) DALAM DAUN TANAMAN DI RUANG TERBUKA HIJAU Nurmawan, W.; Ogie, Tommy B.; Kainde, R. P.
EUGENIA Vol 25, No 3 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.3.2019.31403

Abstract

Lead (Pb) is a highly toxic heavy metal that can have a negative influence on chlorophyll because most of it is accumulated by plant organs, namely leaves, stems, and roots, as well as soil around plants. This study aims to examine the Pb content in the leaves of Angsana (P1), Trembesi (P2), and Mahoni plants in the urban green spaces around UNSRAT (T1), KONI (T2) and Sparta Tikala Sport Field (T3) in Manado. Pb content testing uses the AAS (Atomic Absorption Spectrophotometery) method in the laboratory of Manado Industrial Standards Agency. This research was compiled using a Randomized Block Design (RCBD) with 2 treatment factors, namely tree species (P) and sampling locations (T). Each treatment was repeated 3 times to obtain 27 experimental units. The results showed that the treatment of tree species and sampling locations had a significant influence on lead sorption by leaves. Interaction of P3T3 treatment produced the highest lead sorption at 1.14 ppm, which was not significantly different from P3T1 (1.12 ppm), P3T2 (1.07 ppm), P2T2 (1.01 ppm), P2T3 (0.97 ppm), P2T1 (0.97 ppm), P1T3 (0.92 ppm) but significantly different from P1T2 (0.89 ppm) and P1T1 (0.87 ppm).  Overall, the results of Pb sorption are within the normal limits of Pb content in plants ranging from 0.5 to 3.0 ppm.