scholarly journals KARAKTERISTIK SIFAT FISIKA TANAH ULTISOL AKIBAT PEMBERIAN BIOCHAR BERBAHAN BAKU SISA TANAMAN KELAPA SAWIT

Jurnal Solum ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 21
Author(s):  
Abdul Rauf ◽  
Supriadi Supriadi ◽  
Fitra Sawal Harahap ◽  
Makruf Wicaksono

The physical characteristics of ultisols due to the provision of biochar made from palm oil plant residue aims to determine the effect of giving various biochar made from oil palm plant residues on the physical properties of Ultisols. The research design used completely randomized design, consisting of 5 treatments, namely K = without giving biochar, BB = oil palm stem biochar, BP = oil palm frond biochar, BT = oil palm empty bunches biochar and BK = combination of biochar ingredients. Each treatment was repeated 4 times, so that the number of experimental units became 20 units. The parameters observed included soil density, soil porosity, soil texture, soil permeability and available water. The results showed that giving biochar significantly decreased the bulk weight and significantly increased the soil porosity of Ultisols.Key words : biochar, oil palm wastes, physical properties of soil and ultisol

2020 ◽  
Vol 2 (2) ◽  
pp. 93-97
Author(s):  
Irfan Rusdi ◽  
Abdul Rauf ◽  
Supriadi Supriadi ◽  
Benny Hidayat

Ultisol is one type of soil that has several problems for plant growth. The main problems are poor physical properties such as high bulk density, low soil permeability, and low water retention ability. This research aim was to determine the effects of various application of biochar made of oil palm plants residue on bulk density and soil porosity of Ultisol soil. The research design used a non-factorial completely randomized design, consisting of 5 treatments, namely without biochar application (control), oil palm stem biochar, oil palm frond biochar, oil palm empty fruit bunches biochar and combination of biochar ingredients. Each treatment was repeated 4 times hence the number of experimental units became 20 units. The parameters observed included bulk density and soil porosity. The research results showed that biochar application significantly reduced the bulk density and significantly increased the soil porosity of Ultisol soil.


2015 ◽  
Vol 4 (1) ◽  
pp. 8-13
Author(s):  
Priscillia Picauly ◽  
Josefina Talahatu ◽  
Meitycorfrida Mailoa

Soybean (Glycine max (L) Merr) is needed as an alternative diversification in order to increase protein consumption. Soybean can be processed into variety of foods and drinks. The most popular drink from soybean is soya milk which is made from soybean extract yielded from the addition of water. The amount of water added determine the quality of soya milk due to its effect on the chemical and physical properties of soya milk. This research was intended to find out the proper ratio of soybean and water in the processing of soya milk to yield the best quality. A completely randomized design was used with eight treatments of soybean and water ratio as follows, ratio of 1 : 6, ratio of 1 : 8, ratio of 1 : 10, ratio of 1 : 12, ratio of 1 : 14, ratio of 1 : 16, ratio of 1 : 18 and ratio of 1 : 20. Result showed the soybean and water ratio 1 : 10 in the processing of soya milk yielded milk having good quality according to its chemical with protein content of 2.53%, fat of 1.20%, sugar total of 1.60%, pH of 7.1, and organoleptic characteristies of both somewhat sweet taste and viscous texture.


2021 ◽  
Vol 894 (1) ◽  
pp. 012030
Author(s):  
A T Maryani ◽  
N Mirna ◽  
F F Bahar

Abstract The use of chemical fertilizers in agriculture has caused soil degradation and is harmful to human health. Organic fertilizers made from animal waste have received worldwide attention because they are not detrimental to health or the environment. This paper describes the effect of using organic fertilizers from chicken manure on the growth of papaya plants. A completely randomized design was used in this study using two factors and three repetitions; the variations of the fertilizers given were 0, 50, 100, 150, and 200 g. This study informed that organic chicken manure had a significant effect on the growth of oil palm and papaya plants. The best growth is oil palm and papaya plants given 200 g of organic fertilizer from chicken manure.


Pro Food ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 304-310
Author(s):  
Siska Cicilia ◽  
Eko Basuki ◽  
Agustono Prarudiyanto ◽  
Ahmad Alamsyah ◽  
Dody Handito

Cookies is one type of populer biscuits. The basic ingredients of cookies are generally wheat flour. The availability of wheat flour in Indonesia is dependent on imports. To overcome this, the substitute of wheat flour is needed. Alternative materials can from tubers one of them is a black potato. The objective of this research were to substitute wheat flour with black potato starch for cookie manufacture and to analyze chemical composition and physical properties of cookies. The design used was Completely Randomized Design (CRD) with flour flour treatment: black potatoes are 100%, 90%: 10%, 80%: 20%, 70%: 30%, 60%: 40%, and 50%: 50%. The addition of black potato starch cause a decrease in water content, protein content, fat content and increased ash content of cookies. The addition of potato starch up to 30% produces the preferred cookies that accepted by panelists.Key words: Coleus tuberosus, cookies, wheat flourABSTRAKCookies (kue kering) merupakan salah satu jenis biskuit yang banyak disukai oleh masyarakat dari berbagai kalangan. Bahan dasar pembuatan cookies umumnya adalah tepung terigu. Ketersediaan tepung terigu di Indonesia masih tergantung pada impor. Untuk mengatasi hal tersebut maka diperlukan bahan alternatif pengganti terigu. Bahan alternatif bisa berasal dari umbi-umbian salah satunya adalah kentang hitam. Penelitian ini bertujuan untuk mensubstitusi tepung terigu dengan tepung kentang hitam pada pembuatan cookies serta menganalisa komposisi kimia dan sifat fisik cookies tersebut. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan perlakuan tepung terigu tepung : kentang hitam yaitu 100%, 90% : 10%, 80% : 20%, 70% : 30%, 60% : 40%, dan 50% : 50%. Penelitian ini dilakukan di laboratorium pengolahan pangan dan laboratorium kimia dan biokimia pangan Fatepa Universitas Mataram. Penambahan tepung kentang hitam menyebabkan penurunan kadar air, kadar protein, kadar lemak dan peningkatan kadar abu cookies.Penambahan tepung kentang sampai 30% menghasilkan cookies yang disukai panelis.Kata kunci: cookies, kentang hitam, tepung terigu


2020 ◽  
Vol 55 (4) ◽  
pp. 487-498
Author(s):  
Rosa Cecilia Aldana-De La Torre ◽  
Luis Guillermo Montes-Bazurto ◽  
Alex Enrique Bustillo-Pardey

Abstract Rhynchophorus palmarum (L.) (Coleoptera: Dryophthoridae) is an important pest in oil palm plantations, and its populations are monitored through rhynchophorol pheromone-baited traps. To optimize the release of rhynchophorol in high-density polyethylene diffusers, five calibers (2, 3, 4, 5, and 6) were evaluated. The experiment was conducted under a completely randomized design with 15 repetitions, recording daily weight loss of pheromones. Release rate of pheromone under laboratory conditions (30.2 ± 0.1°C; 70.8 ± 0.8% relative humidity [RH]) varied between 2.2 and 10.4 mg/day. Three diffusers with 2.4 ± 0.4, 3.6 ± 0.9, and 8.5 ± 1.3 mg/day of release rates, were selected for testing in three palm-growing zones. Adults of R. palmarum captured in traps with different diffusers were counted as well as pheromone weight loss. In two of three plantations, statistical differences were found in the capture of R. palmarum adults among the diffusers that presented different pheromone release rates (Eastern: F = 8.27; df = 2, 9; P = 0.0028; Central: F = 10.79; df = 2, 9; P = 0.0008; Southwestern F= 2.20; df = 2, 9; P= 0.1402). The diffuser with the release rate of 2.4 mg/day was selected because, after remaining 4 mo in the field, the traps with this diffuser registered catches statistically equal to those that had traps with newly installed diffusers. We concluded that the release rate of the pheromone of 2.4 mg/day is optimal for the capture of adults of R. palmarum during a period of 4 mo.


2017 ◽  
Vol 4 (1) ◽  
pp. 54
Author(s):  
Noor Mirad Sari ◽  
Trisnu Satriadi ◽  
Muhammad Safi’i

This research aims to utilize cinnamon (Cinnamomum burmanii) and wood durian (Durio zibethinus) which is an unused wood or waste, a product that has economic value. The purpose of this study was to determine the physical properties (moisture content, density) and mechanical (MoE, MoR , and the efficiency of the connection) continued boards cinnamon (Cinnamomum burmanii) and wood durian (Durio zibethinus). Connecting board manufacturing is done with menjari method (finger joint), as well as testing done of testing physical properties (moisture content, density)on the mechanical properties of wood intact and (MoE, MoR, the efficiency of the connection) to connect the board. Board continued to use Poly vinyl acetate (PVAC) as adhesive. This study uses a completely randomized design (CRD) with 2 types of wood, 3 treatments and 3 repetitions. Results of this indicate that the use of a waste can produce a quality produst and has economic value.  The results of all these studies show that connecting boards made from cinnamom cinnamom + MM has elasticity (MoE) is high but less well on the test and also the level of efficiency MoR connection. While on board grafting wood + wood durian durian (DD) has a current MoE and MoR efficiency is low but good connection. Boards cinnamon +connection durian wood (MD) has an elasticity (MoE) is low but has a high MoR and efficiency is very good connection. From the results obtained that the board continued the MD who has good quality MM and DD. Further research based on other types, concentrations and types of adhesive connection method.Penelitian ini bertujuan untuk dapat memanfaatkan kayu manis (Cinnamomum burmanii) dan kayu durian (Durio zibethinus) yang merupakan kayu yang tidak terpakai atau limbah, menjadi produk yang memiliki nilai ekonomis. Tujuan dari penelitian ini adalah mengetahui sifat fisis (kaar air, berat jenis) dan mekanis (MoE, MoR, dan efisiensi sambungan) papan sambung kayu manis dan kayu durian. Pembuatan papan sambung dilakukan dengan metode menjari (finger joint), serta pengujian yang dilakukan yaitu pengujian sifat fisis (kadar air, berat jenis) pada kayu utuh dan sifat mekanis (MoE, MoR, efisiensi sambungan) pada papan sambung. Papan sambung dengan menggunakan Poly vinyl acetate (PVAc) sebagai perekatnya. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 2 jenis kayu, 3 perlakuan dan 3 pengulangan. Hasil penelitian ini menunjukkan bahwa pemanfaatan suatu limbah bisa menghasilkan suatu produk yang berkualitas dan memiliki nilai ekonomis. Hasil dari semua penelitian ini menunjukkan papan sambung yang terbuat dari kayu manis + kayu manis MM memiliki elastisitas (MoE) yang tinggi tapi kurang baik pada uji MoR dan juga tingkat efisiensi sambungannya. Sedangkan pada papan sambung kayu durian + kayu durian (DD) memiliki MoE yang sedang dan MoR yang rendah tapi efisiensi sambungan baik. Papan sambung kayu manis + kayu durian (MD) memiliki elastisitas (MoE) yang rendah tapi memiliki MoR yang tinggi serta efisiensi sambungan sangat baik. Dari hasil yang diperoleh bahwa papan sambung MD yang memiliki kualitas yang baik dibandingkan MM dan DD. Penelitian lebih lanjut berdasarkan dari jenis lainnya, konsentrasi jenis perekat dan metode sambungan.


2019 ◽  
Vol 33 (2) ◽  
pp. 169-178
Author(s):  
T. Rosmawaty ◽  
Samsul Kurniawan

This research aims to examine the effect of compost bunches of oil palm and plant hormone superior on growt of anthurium plant. The research was conducted at the experiment farm of faculty of agriculture Riau Islamic university during 4 months, starting from April to July 2015. The completely randomized design was used by using 2 factors, the first factor was compost bunches of oil palm, consisting of 0, 15, 30, 45 g/polybag, the second factor was plant hormone superior consisting of 0, 2, 4, 6 milli/liter. The parameters observed the number of leaves per plant, total leaf area, relative growth rate, net assimilation rate, root volume. The results showed that interactinally has effect on number of leaves per plant and root volume the best treatment of compost bunches of oil palm 30 g/ploybag and plant hormone superior 4 milli/liter. Application of compost bunches of oil palm affects all observation parameter, the best treatment 30 g/polybag. Application of plant hormone superior affects all observation parameter, the best treatment 4 mili/liter.


2019 ◽  
Vol 9 (2) ◽  
pp. 13
Author(s):  
Ade Maya Mustika ◽  
Penti Suryani ◽  
Tahrir Aulawi

This research was conducted from August to December 2016 at the PEM Laboratory of the Faculty of Agriculture and Animal Sciences State Islamic University of Sultan Syarif Kasim Riau and Central Plantation Service Laboratory. The study aims to 1). Analyzing the chemical and organoleptic qualites of Oil Palm Empty Bunches organic fertilizer with the addition of different EM-4 doses 2). Determine the best quality on the quality of Oil Palm Empty Bunches organic fertilizer. The experimental design was Completely Randomized Design (CRD) and three replications. The treatment were application of (EM4) consist of 0 ml, 5 ml, 10 ml, 15 ml, 20 ml, and 25 ml. Results analysis using ANOVA variance, simple linear regression and validity and reliability analysis. The results showed that the addition of EM-4 resulted in quality in accordance with SNI 19-7030-2004 with the dose of 5 ml, 10 ml, and 15 ml, respectively, but on the measurement of fertilizer pH organic Oil Palm Empty Bunches does not meet SNI: 19-7030-2004.


2020 ◽  
Vol 22 (2) ◽  
pp. 72
Author(s):  
Eva Aprilia Saesarini Pangaribuan ◽  
Adriani Darmawati ◽  
Susilo Budiyanto

<p>Sandy soil is very difficult to remain the water and nutrients so that leaching often occurs before nutrients absorbed by the roots. It can be happen because sandy soil has many macro pores in the soil. This research was aimed to study the effect of biochar and cow manure fertilizer for growth and products of <em>Brassica rapa</em> L. plants on sandy soil. The method used was factorial completely randomized design with 2 factors. This first factor was type of biochar (paddy husk biochar and corn cobs biochar) and the second factor was dosage of cow manure fertilizer (5 tons/ha, 10 tons/ha, 15 tons/ha, 20 tons/ha, 25 tons/ha). The result showed that the application of cow manure fertilizer had significant effected on bulk density and soil porosity. The interaction between the type of biochar and dosage of cow manure fertilizer had significant effect on ground water content. The application of biochar and high doses of cow manure fertilizer resulted in increased ground water content on sandy soil.  The type of biochar and dosage of cow manure fertilizer had no significant effect on the nitrogen uptake, plant height, number of leaves, and crown fresh weight.</p>


Author(s):  
Dwi Astutik ◽  
Ratih Rahhutami ◽  
Aline Sisi Handini ◽  
Ahmad Sutopo

<em>A planting medium that rich in nutrients is needed for oil palm, especially in the nursery phase. This study aimed to determine the effect of various doses of EM4 and to get the best dose of EM4 on the growth of oil palm seedlings in the pre-nursery. The research method used was a non-factorial completely randomized design with 4 treatments, namely 0 ml EM4 (A1), 4 ml EM4 (A2), 8 ml EM4 (A3), and 12 ml EM4 (A4). Each treatment was repeated 6 times so that there were 24 experimental units. The data obtained were analyzed for variance at the 5% level, if the effect was real, it was followed by the least significant difference (LSD) test. Based on the results of the study, it could be concluded that application of various EM4 doses had a significant effect on plant height (4-12 MST), the number of leaves (4-8 MST), trunk girth (4-12 MST), and shoot wet weight but did not significantly affect the number of leaves (12 MST), the volume of roots, length of roots, root wet weight and shoot dry weight, dry weight root, the best dose was shown at a dose of 12 ml EM4.</em>


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