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Ferry Ezra Sitepu
University of Sumatera Utara
Agriculture, Biological Sciences & Forestry

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Respon Pertumbuhan Bibit Kakao (Theobroma cacao L.) terhadap Pemberian Kompos Kulit Buah Kakao dan Pupuk Majemuk Npk BRIAN PRATAMA DEPARI; Ferry Ezra Sitepu; Jonatan Ginting
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.556 KB) | DOI: 10.32734/jaet.v6i2, April.17318

Abstract

Penelitian dilaksanakan di lahan balai UPT. Balai Benih Induk Palawija Tanjung Selamat, Sumatera Utara pada Oktober 2016 – Januari 2017, menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu pemberian dosis kompos kulit buah kakao (0, 113, 225, 338 g/polibag) dan dosis pupuk NPK (0, 4, 8, 12 g/polibag). Parameter yang diamati adalah tinggi bibit kakao, diameter batang bibit kakao, jumlah daun bibit kakao, total luas daun bibit kakao, bobot basah tajuk bibit kakao, bobot kering tajuk bibit kakao, bobot basah akar bibit kakao, bobot kering akar bibit kakao, rasio bobot kering tajuk – akar bibit kakao.Hasil penelitian menunjukkan bahwa perlakuan pemberian kompos kulit buah kakao berpengaruh nyata terhadap parameter tinggi tanaman, jumlah daun, diameter batang dan bobot kering tajuk. Pada perlakuan pemberian pupuk NPK berpengaruh nyata terhadap parameter bobot basah tajuk dan bobot kering tajuk. Interaksi antara kedua perlakuan berpengaruh nyata terhadap parameter diameter batang, bobot kering tajuk, dan total luas daun. Kata Kunci : bibit kakao,  kompos kulit buah kakao, pupuk npk
Peran Berbagai Sumber N Terhadap Pertumbuhan dan Produksi Tiga Varietas Kedelai (Glycine Max (L.) Merril) di Lahan Kering Adjie Putra Susetyo; Yaya Hasanah; Ferry Ezra Sitepu
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.86 KB) | DOI: 10.32734/jaet.v7i1,Jan.19318

Abstract

Soybeans are a long-cultivated food commodity in Indonesia, which is currently not only positioned as a raw material for the food industry, but also a raw material for non-food industries. This study aims to determine the role of various sources of N on the growth and production of three varieties of soybean in dry land. This research was conducted at community land of Tanjung Anom Village Pancur Batu Subdistrict, Sumatera Utara which is at + 25 meters above sea level, on August to November 2016 using a Factorial Randomized Block Design with 2 factors. The first factor is the source of N consisted without nitrogen, N – Inorganic source (Urea), N – Biological source (Illetrisoy), and N – Organic Source (Biochar rice straw. The second factor is varieties with 3 types of varieties Cikurai, Grobogan, and Dering – 1. The observed variables were plant height, shoot dry weight, number of filed pods, seed dry weight per plant, , seed dry weight per plot and weight of 100 seeds. The result showed that varieties had significant effect on plant height at 2, 3, 5, and 6 week after plant (WAP), weight of 100 seeds and seed weight per plot and N source had significant effect on dry weight of canopy and number of pods. The interaction of varieties and N sources has no significant effect on all observed variables. Keywords: dry land, soybean, source N, varieties
Co-Authors Adjie Putra Susetyo BRIAN PRATAMA DEPARI Jonatan Ginting Rijalul Afkar Yaya Hasanah