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All Journal Agrosains: Jurnal Penelitian Agronomi
Dwi Hardjoko
Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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Pengaruh Campuran Pasir dan Serat Aren pada Kailan (Brassica oleraceae) dengan Hidroponik Substrat Samanhudi Samanhudi; Dwi Hardjoko; Riandy Adhitya
Agrosains : Jurnal Penelitian Agronomi Vol 16, No 1 (2014): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (461.134 KB) | DOI: 10.20961/agsjpa.v16i1.18908

Abstract

Wood fiber waste of arenga produced from starch palm industry. It is not handled properly so that could be potentially cause problems for the surrounding community. Wood fiber waste of arenga is potentially used as a medium for hydroponics. The waste can be utilized to get a new composition of hydroponic media. This study aims to determine the effect of a mixture of sand with arenga fiber waste. This research was carried out by using a mixture of sand and arenga wood fiber waste as a medium. This is an experimental study using a completely randomized design. This study aims to determine the effect of a mixture of sand and arenga fiber waste for kailan growth. The results showed that the mixture of sand and arenga wood fiber waste has no effect on kailan growth. The combination of mixtures of sand and arenga fiber waste showed no interaction. Observations on plants such as plant height, number of leaves, leaf greenness levels, the fresh weight of crop stover and stover dry weight of the plant, showed a row of the highest results in the media mix washed sand, washed sand and rice husk
Kombinasi Jenis Pasir dengan Serat Batang Aren serta Pengaruhnya terhadap Pertumbuhan dan Hasil Tomat secara Hidroponik Substrat Shufiyati Muniroh; Dwi Hardjoko; Sumiyati Sumiyati
Agrosains : Jurnal Penelitian Agronomi Vol 17, No 1 (2015): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.631 KB) | DOI: 10.20961/agsjpa.v17i1.18660

Abstract

This study aims to measure the effect of volcanic sand, native sea sand and sea sand washing substrate on the growth and yield of tomatoes, measuring the effect of arengan wood fiber substrate on growth and yield of tomatoes, measuring the effect of the combination of volcanic sand, native sea sand and sea sand washing with arenga wood fiber substrate compared to the growth and yield of tomato. The research was conducted from August to December 2014 in the screen house Faculty of Agriculture, Sebelas Maret University. This study uses a completely randomized design with 1 factors with 14 treatment. The analysis of the data was tested using the F test level of 5%. After that, if the result F tests 5% significant, the analysis continued with DMRT (Duncan Multiple Range Test) level of 5%. The results showed treatment volcanic sand, native sea sand and sea sand washing substrate produce growth and good results in tomatoes when watering is often done so that the plants do not wilt. Arenga wood fiber substrate treatment resulted in poor growth of the roots and results of tomatoes. Treatment volcanic sand, native sea sand sea sand washing genuine with arenga wood fiber (1: 1) to produce growth and good results on tomato plants.
Kombinasi Serat Batang Aren dan Pasir Merapi pada Hidroponik Substrat Kailan Anik Fitri Astuti; Dwi Hardjoko; Muji Rahayu
Agrosains : Jurnal Penelitian Agronomi Vol 18, No 2 (2016): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.135 KB) | DOI: 10.20961/agsjpa.v18i2.18692

Abstract

Kailan is a horticultural commodity that interest but productivity of kailan reduce caused by the cultivation of agricultural land which is getting slightly. Need effort to increase productivity of kailan by applying hydroponic substrate. This study uses merapi sand and arenga wood fiber as a hydroponic substrate medium. Merapi sand is easily porous. Arenga wood fiber is waste produced by palm industry which not used maximum. This study purpose to assess whether the treatment of a mixture of merapi sand and arenga wood fiber with hydroponic substrate systems affect kailan’s growth and product. The method used completely randomized design with one factor consists of 1 control and 13 treatments. The results showed that mixture of merapi sand and arenga wood fiber give different effect on variable. Mixture of 25% arenga wood fiber and 75% Merapi sand (1: 3) have inclined more great value in the roots fresh weight and plant fresh weight. Merapi sand 100% give inclined more great value in the variable plant height and amount of leaves.
Perbandingan Komposisi Ukuran Serat Batang Aren dengan Pasir Sebagai Substrat Hidroponik Seladaarenga wood fiber composition; sand; fiber size; lettuce; hydroponic substrate Dwi Hardjoko; Sumiyati Sumiyati
Agrosains : Jurnal Penelitian Agronomi Vol 18, No 1 (2016): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.901 KB) | DOI: 10.20961/agsjpa.v18i1.18682

Abstract

Lettuce (Lactuca sativa L.) is vegetables with high nutrient content and interest more people, meanwhile producing optimum, yet, therefore, need hydroponic substrate to increase productivity. The orange wood fiber is a waste produced by palm industry manufacturer. The waste of Arenga wood fibers has not used maximum yet, so if it’s piled up will be affects the ecosystem in around. We need to utilize the waste of Arenga wood fiber to be a substrate hydroponic. The aim of this research is to know the maximum of Arenga wood fiber composition in several sizes which is combined with the sands. It’s for increasing the growth and lettuce yield. The method of this research is completely randomized design with two factorials. They are the Arenga wood fiber composition with sand and size of Arenga wood fiber. The main variable of observation is root length, wide of leaves, and fresh weight of lettuce. The result of observation showed that the Arenga wood fiber composition and the sand composition for cultivation lettuce consist of 25% of Arenga wood fiber and 75% (1:3) of various size of sand. The highest root was 12.6 cm and it produced wide of leaves was 1602.3 cm2 and increased the fresh plants until 53.7 g.
Co-Authors Anik Fitri Astuti Muji Rahayu Riandy Adhitya Samanhudi Samanhudi Shufiyati Muniroh Sumiyati Sumiyati