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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration
Eko Suprijono
University Of Bengkulu
Agriculture, Biological Sciences & Forestry

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PENGARUH SUBTITUSI PUPUK N SINTETIK DENGAN LIMBAH LUMPUR SAWIT TERHADAP PERTUMBUHAN DAN HASIL JAGUNG MANIS Johannes Simbolon; Bilman Wilman Simanihuruk; Bambang Gonggo Murcitro; Herry Gusmara; Eko Suprijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.51-59

Abstract

[EFFECTS OF PALM OIL SLUDGE SUBTITUTION FOR SYNTHETIC N FERTILIZER ON GROWTH AND YIELD OF SWEET CORN]. Palm oil sludge (POS) contains high concentrations of organic nitrogen dan its can serve as an alternative for synthetic nitrogen fertilizer. Objective of this study was to compare the growth and yield of sweet corn as amended with different compositions of synthetic N fertilizer and palm oil sludge. Six compositions, each containing 138 kg N/ha were assigned as the treatment and arranged in a randomized complete block design with three replications. These were 100% synthetic fertilizer, 80% synthetic fertilizer + 20% POS, 60% synthetic fertilizer + 40% POS, 40% synthetic fertilizer + 60% POS, 20% synthetic fertilizer + 80% POS, and 100% POS. The results of this study indicated that the plot amended with 60% synthetic fertilizer + 40% POS produced the highest plant stature (176.4 cm), stem diameter (2.40 cm), leaf area (8712.82 cm2 ), plant fresh weight (375.19 g), plant dry weight (136.68 g), and husked ear length (17.93 cm). However, the highest observed husked ear yield was only about 61.6 % the yield potential of the sweet corn variety.
Vermicompost of Cow Dung and Goat Manure to Increase N Absorption, Mustard (Brassica rapa L) Growth and Yield in Ultisols Tulus Roy Rasdian Purba; R. Teguh Adi Prasetyo; Bambang Gonggo Murcitro; Abimanyu Dipo Nusantara; Eko Suprijono
TERRA : Journal of Land Restoration Vol 4, No 1 (2021)
Publisher : Department of Soil Science, Faculty of Agriculture, University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.4.1.23-28

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This study aims to obtain N levels and N absorption as well as the growth and yield of mustard plants in ultisol soilapplied vermicompost cattle or goats. This research has been conducted from April 2020 – May 2020. Implementation of research on UNIB garden and Soil Science Laboratory of Faculty of Agriculture, University of Bengkulu. This study used a Complete Randomized Design (CRD) with a single factor consisting of 7 treatments, namely control, vermicompost cow dung with a dose of 10 tons ha-1 , 20 tons ha-1 , and 30 tons ha-1 , and vermicompost goat manure with a dose of 10 tons ha-1 , 20 tons ha-1 , and 30 tons ha-1 . The results showed that the administration of vermicompost cow dung at a dose of 30 tons ha-1 gave the best results for N tissue levels, N absorption, and mustard results in Ultisol. The same result was obtained from the administration of vermicompost goat manure at a dose of 20 tons ha-1 .
RESPON PERTUMBUHAN DAN HASIL LIMA GENOTIP PADI HIBRIDA TERHADAP PUPUK ORGANIK TANDAN KOSONG KELAPA SAWIT (TKKS) PADA TANAH ULTISOL David Khairullah Hadi; Reny Herawati; Widodo Widodo; Mukhtasar Mukhtasar; Helfi Eka Saputra; Eko Suprijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22 No 2 (2020)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.2.106-113

Abstract

[RESPONSE OF GROWTH AND YIELD OF FIVE RICE HYBRID GENOTYPE ON THE ORGANIC FERTILIZER OF PALM OIL BUNCHES ON ULTISOL]. Oil Palm Bunches (OPB) are solid waste potential as organic fertilizer to improve soil physical, biological and chemical properties, especially on ultisol soils for rice development. This research was conducted in August - November 2019 in Padang Harapan, Bengkulu City. The materials used were F1 rice seeds, OPB organic fertilizer. The experimental design was a factorial Randomized Completely  Block Design (RCBD) with 2 factors. The first factor was 5 hybrid genotypes (F1), namely, Kuning x Inpago5, Kuning x Inpago9, Kuning x Inpago6, Arang x Inpago8, and Kuning x Salumpikit. The second factor was the dosage of OPB, namely 0 (control), 10 tonnes/ha, 15 tonnes/ha, and 20 tonnes/ha, the experiment was repeated 3 times. The variables observed were plant height, number of productive tillers, flowering age, harvest age, the total number of fill grains, number of filled grains, number of empty grains, 1000 grain weight, and grain weight/hill. The results showed that there was an interaction between genotype and OPB on the number of tillers. The interaction between the Kuning x Salumpikit genotypes and 10 tonnes/ha of organic fertilizer produced the largest number of tillers. Genotype G3(Kuning x Inpago6) produced the best rice growth and yield. In this study, the optimum point for OPB fertilization on growth and yield of the five genotypes tested had not been obtained.
Co-Authors Abimanyu Dipo Nusantara Bambang Gonggo Murcitro Bilman Wilman Simanihuruk David Khairullah Hadi Helfi Eka Saputra Herry Gusmara Johannes Simbolon Mukhtasar Mukhtasar R. Teguh Adi Prasetyo Reny Herawati Tulus Roy Rasdian Purba Widodo Widodo