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Keragaan Bibit Bud Chips Tebu (Saccharum officinarum L.) dengan Perlakuan Lama Perendaman dan Konsentrasi IAA Irda Nila Selvia; Meiriani Meiriani; Yaya Hasanah
Jurnal Agroekoteknologi Vol 3, No 2 (2015)
Publisher : Universitas Sumatera Utara

The objectives of the research was to study performance of sugarcane bud chips with soaking timeand IAA concentration treatment. The research was carried out at PT. Perkebunan Nusantara IITanjung Jati, Langkat (± 40 m slr) on May – August 2014. The research used factorial RandomizedBlock Design (RBD) with two factors and three replications. The first factor was soaking time with3 levels (10; 20; and 30 minutes) and the second factor was IAA concentration with 4 levels (0;100; 200; and 300 ppm). Data were analized with Analysis of Variance and continued withDuncan’s Multiple Range Test (DMRT). The variables observed were plant height, number ofleaves, and total leaf area. The result of research showed that the best performance of sugarcane budchips was at 20 minutes of soaking time and 200 ppm of IAA concentration that was showed by theheighest plant height 10 week after transplanting (WAT), in great quantities number of leaves 10WAT and the widest total leaf area 10 WAT was 20 minutes of soaking time and 200 ppm of IAAconcentration.Key words: sugarcane, bud chips, soaking time, IAA concentration

Respons Pertumbuhan dan Serapan N Tanaman Kedelai (Glycine max L. Merrill) dengan Pemberian Bradyrhizobium sp. dan Kapur di Tanah Mineral Masam Irda Nila Selvia
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 6, No 1 (2022): KLOROFIL : JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v6i1.11749

People's purchasing power for animal protein has decreased and has shifted to processed soy foods as one of the foods containing vegetable protein during the Covid-19 pandemic due to the economic recession. Soybeans are a source of high vegetable protein so they require a lot of Nitrogen (N). To fulfill the demand for soybeans, soybean cultivation can be carried out in acidic mineral soils with a low pH. Acidic mineral soil with a low pH causes it difficult for N nutrients to be available and the bacteria Bradyrhizobium sp. difficult to symbiosis with soybean plants. The aim of this study was to increase the growth and N uptake of soybean plants on acid mineral soils by inoculating Bradyrhizobium sp. and lime. The research was conducted in Jati Kesuma Village, Namorambe, Deli Serdang on a plot size 200 x 200 cm using a factorial randomized block design (RAK) with 2 factors. The first factor was the inoculating of Bradyrhizobium sp inoculants consisting of without inoculant; BGR 3 inoculant; and LP 3 inoculant. The second factor was liming consisting of without liming and liming with a dose of 1.06 kg/plot (pH 4.9 to 5.5). The results showed that Bradyrhizobium sp. BGR 3 inoculant tended to increase soybean plant height on acid mineral soil, but LP 3 inoculant was able to increase shoot root ratio and tended to increase N uptake 62.86% on acid mineral soil. The addition of lime was able to increase the growth of soybean plants on acidic mineral soil and increased N uptake 4.08%. The combination of LP 3 inoculant and without liming was able to increase shoot root ratio of soybean 133,33% on acid mineral soils.

Respons Pertumbuhan dan Serapan N Tanaman Kedelai (Glycine max L. Merrill) dengan Pemberian Bradyrhizobium sp. dan Kapur di Tanah Mineral Masam Irda Nila Selvia
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 6, No 1 (2022): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v6i1.11749

People's purchasing power for animal protein has decreased and has shifted to processed soy foods as one of the foods containing vegetable protein during the Covid-19 pandemic due to the economic recession. Soybeans are a source of high vegetable protein so they require a lot of Nitrogen (N). To fulfill the demand for soybeans, soybean cultivation can be carried out in acidic mineral soils with a low pH. Acidic mineral soil with a low pH causes it difficult for N nutrients to be available and the bacteria Bradyrhizobium sp. difficult to symbiosis with soybean plants. The aim of this study was to increase the growth and N uptake of soybean plants on acid mineral soils by inoculating Bradyrhizobium sp. and lime. The research was conducted in Jati Kesuma Village, Namorambe, Deli Serdang on a plot size 200 x 200 cm using a factorial randomized block design (RAK) with 2 factors. The first factor was the inoculating of Bradyrhizobium sp inoculants consisting of without inoculant; BGR 3 inoculant; and LP 3 inoculant. The second factor was liming consisting of without liming and liming with a dose of 1.06 kg/plot (pH 4.9 to 5.5). The results showed that Bradyrhizobium sp. BGR 3 inoculant tended to increase soybean plant height on acid mineral soil, but LP 3 inoculant was able to increase shoot root ratio and tended to increase N uptake 62.86% on acid mineral soil. The addition of lime was able to increase the growth of soybean plants on acidic mineral soil and increased N uptake 4.08%. The combination of LP 3 inoculant and without liming was able to increase shoot root ratio of soybean 133,33% on acid mineral soils.

Identifikasi Kandungan Pupuk Organik Cair dari Hidrogel Limbah Diapers Terhadap Penambahan Spirulina platensis Rasyidah Rasyidah; Irda Nila Selvia; Devi Siruwahni
BEST Journal (Biology Education, Sains and Technology) Vol 5, No 2 (2022): September 2022
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v5i2.6573

The increase of the number of babies birth will also increase the use of baby diapers. The increase of use diapers is not matched by the act of treating the diaper waste. Whereas diaper waste often becomes an environmental problem. Diaper waste has the potential to be used as organic liquid fertilizer because it contains nitrogen, electrolyte ions, and dissolved hormones from urine. But the decomposition process takes a very long time if the diapers are just left intact without being given certain treatment to separate the gel and plastic parts of the diaper. So it is necessary to carry out a recycling process involving microbes so that the decomposition process of organic matter from diaper waste can take place optimally. One of the microalgae that can be used is Spirulina platensis. Therefore, this study aims to determine the content of liquid organic fertilizer produced from composting diaper waste with the addition of Spirulina platensis. The study was conducted using an experimental method with 3 treatments, namely control (0 ml S. platensis+3 kg hydrogel), D2 (25 ml S. platensis+3 kg hydrogel), D3 (50 ml S. platensis+3 kg hydrogel). Parameters observed were macro nutrients (C-Organic, Total Nitrogen, Phosphorus), and C/N Ratio. Data analysis was carried out by looking at the C-organic, N, P, K and C/N ratio content in liquid organic fertilizer obtained from the addition of Spirulina platensis through laboratory tests at the initial and final stages of composting. From the results of the analysis it was found that the macro nutrient content in the form of elements N, P, K and the C/N ratio at the final stage of composting did not show a value that suitable with technical requirements for liquid organic fertilizer according to Minister of Agriculture No. 70 of 2011. So that in its application, use hydrogel diapers as an organic fertilizer, it can still be combined with other organic materials to meet the required nutrients.

THE EFFECT OF PROVIDING GOAT MANURE AND ADDITIN WATER WITH THE PARTIAL ROOT ZONE (PRD) METHOD IN INCREASING THE GROWTH AND PRODUCTION OF TOMATO PLANTS (LYCOPERSICUM ESCULENTUM MILL) USING A DIGITAL SOIL MOISTURE METER IN NORTH SUMATERA M. Idris; Irda Nila Selvia; Russell Ong; Armansyah Armansyah; Mohd Khairul Amri Kamarudin
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 9 No. 2 (2025): Volume 9, Nomor 2, June 2025
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v9i2.41934

This study aims to investigate the effectiveness of the Partial Rootzone Drying (PRD) irrigation method, the application of goat manure as organic fertilizer, and the interaction of both treatments on the growth and yield of tomato plants (Lycopersicum esculentum Mill) in North Sumatra. The research responds to the urgent need for sustainable agricultural practices that conserve water and enhance soil fertility, especially in tropical regions facing irregular rainfall and declining soil quality. A field experiment was conducted using a factorial randomized block design to test various levels of goat manure combined with the PRD technique. Observations focused on vegetative growth parameters (plant height, number of leaves, dry weight, chlorophyll content, Relative Growth Rate), nutrient uptake (N, P, and K), and production indicators (fruit number and sugar content). Data were analyzed statistically to determine the significance and interaction effects of treatments. The results show that goat manure significantly improves vegetative growth and fruit production, with higher doses correlating positively to increases in biomass and nutrient uptake. The PRD method led to a 25% reduction in water use without compromising plant productivity. Importantly, the combination of PRD and organic manure application produced synergistic effects, enhancing both growth and yield while optimizing water and nutrient efficiency. This study introduces a novel integrated approach to tomato cultivation that combines precision irrigation (PRD) and organic soil enrichment, offering a replicable model for sustainable, water-efficient horticulture in resource-constrained agricultural regions.

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