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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Indonesian Journal of Agricultural Research Jurnal Pertanian Agros Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Agroplasma Biofarm : Jurnal Ilmiah Pertanian International Journal Of Science, Technology & Management (IJSTM) International Journal of Community Service Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan International Journal of Science and Environment Agrotech Journal Jurnal Agro Estate
Walida, Hilwa
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Isolation And Characterization Of Nitrogen Fixing Fungi From Fruit And Vegetable Waste Compost Dimas Prasetya, Rizki; Walida, Hilwa; Ainy Dalimunthe, Badrul; Rizal, Khairul
International Journal of Science, Technology & Management Vol. 4 No. 4 (2023): July 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i4.875

Abstract

Nitrogen fixing fungi are fungi capable of fixing free nitrogen into ammonium or nitrate, so that it can be absorbed by plants. Many species of microbes/fungi have the ability to fix nitrogen, but very few are able to excrete nitrogen in the form of ammonia so that their contribution in providing nitrogen for plants is also still low. This study aims to determine the characteristics and type of nitrogen fixing fungi in fruit and vegetable waste compost. The method used in this research was descriptive method. Identification of nitrogen-fixing fungi was carried out macroscopically by looking at the color of the colonies, the shape of the colonies, and the diameter of the fungal colonies, an then identified by molecularly. There were 4 isolates of nitrogen-fixing fungi capable of forming clear zones on Jensen's media with different morphological characteristics and nitrogen-fixing abilities. The largest diameter of the clear zone was shown in isolate A3 of 3.2 cm which is the fungus Aspergillus niger strain SG1.
Comparison Of Jakaba Growth With The Addition Of Organic Matter In Rice Washing Water Yusminan, Yusminan; Walida, Hilwa; Syawal Harahap, Fitra; Elizabeth Mustamu, Novilda
International Journal of Science and Environment (IJSE) Vol. 2 No. 3 (2022): August 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.833 KB) | DOI: 10.51601/ijse.v2i3.16

Abstract

Jakaba (perennial luck mushroom) is a fungus derived from the fermentation of rice laundry water (leri). This fungus has the same physical shape as coral but has a fragile texture. This study aims to find out the growth of jakaba with the addition of organic matter in rice laundry water. The research was conducted in Padang Halaban village, Aek Kuo District, Labuhan Batu Utara Regency, North Sumatra. The research was conducted by mixing 1 liter of leri water with 400 grams of organic ingredients such as bran, banana peel and catfish feed Research was carried out by repeating each treatment as much as 6 repetitions with the parameters of salting, namely aroma, color, growth and diameter of jakaba. Based on observations, it is known that the growth of jakaba fungus occurs on the 12th day to the 15th day with the largest jakaba diameter which is 52.9 mm (P2) and the smallest is 40.25 mm (P1). The addition of other organic matter to leri water gives a different aroma and color of jakaba to each treatment.
Temporal Distribution Of Arthropoda Types On Purchase (Portulaca oleracea L.) In Red Chillia Agricultural Land, Afdeling Ii Village Rantau Prapat, Bilah Barat District, Labuhanbatu Regency Harahap, Syukur; Sepriani, Yusmaidar; Walida, Hilwa; Rizal, Khairul
International Journal of Science and Environment (IJSE) Vol. 2 No. 2 (2022): May 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.449 KB) | DOI: 10.51601/ijse.v2i2.23

Abstract

The purpose of this study was to analyze and describe the temporal distribution of arthropods on purslane (Portulaca oleracea L.) on red chili farms, Afdeling II Village, West Bilah Subdistrict, Labuhanbatu Regency. This research method is descriptive exploratory research with a quantitative approach. This is to describe and analyze the temporal distribution of arthropods in purslane (Portulaca oleracea L.). Data was observed from the arrival of arthropods at a predetermined time, namely three 3 observation times, including: time I (07.00-08.00), time II (12.00-13.00), and time III (16.00-17.00) for 10 minutes. Each time the observation was repeated 4 times. The results of this study showed that the daily visits of arthropods at 12.00-13.00 were higher than the daily visits at 07.00-08.00 and 16.00-17.00. Each family of arthropods has a different level of daily visits at each time of arrival which is caused by internal factors (physiological, reproductive ability, life cycle, age) and external factors (physical factors, food, temperature and humidity). The daily visit frequency of this arthropod indicates that purslane (Portulaca oleracea L.) is a habitat for arthropods and can be used as a refugia plant.
Estimation Of Soil Erodibility On Different Land Covers In Urung Kompas Village, South Rantau District, Labuhanbatu Regency Yuli Ferdiansyah, Wan; Syawal Harahap, Fitra; Walida, Hilwa; Ayu Putri Septiyani, Ika
International Journal of Science and Environment (IJSE) Vol. 3 No. 3 (2023): August 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i3.73

Abstract

There will be widespread damage to the land as a result of land degradation, particularly to forest land. Changes in land use from extremely durable vegetation to escalated agrarian land make the dirt all the more handily disintegrated. One of the deciding variables of disintegration is soil disintegration and soil cover vegetation. Soil erodiability is the typical measure of soil lost every year per unit of the file, while the land cover is helpful for safeguarding the dirt from the danger of harm by disintegration and further developing soil conditions. The exploration was done from October 2022 to June 2023. In January 2013, field sampling was carried out. The technique utilized in this study was the review strategy and the purposive examining technique. Choose three points of observation. Then, in the laboratory, data analysis and field observation. Assessment of soil erodibility is completed by taking soil tests, deciding soil structure, soil porousness in the field, and deciding soil surface and natural matter for examination in the research center. Distinguishing proof of disintegration by taking documentation of kinds of disintegration that alludes to references and realities tracked down in the field. To decide the worth of erodibility (soil aversion to disintegration) utilizing a nomograph (soil erosibility). Results of the Study Soil erodibility on oil palm land in the Urung Kompas Village was low to medium, ranging from 0.17 to 0.26. The research site on oil palm land in the Urung Kompas subdistrict has five types of erosion: trench erosion, splash erosion, sheet erosion, furrow erosion, and landslides.
Differences In Nutrient Content In Peat Land And Permanent Production Forest Area In Sei Paham Village, Sei Kepayang District, Asahan District Agus Suryandi, Fauzi; Walida, Hilwa; Rizal, Khairul; Ainy Dalimunte, Badrul
International Journal of Science and Environment (IJSE) Vol. 3 No. 3 (2023): August 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i3.74

Abstract

Peat soils are classified as marginal soils and are prone to disturbance, so efforts to increase land productivity must be followed by efforts to prevent ecosystem damage. This study aims to analyze differences in nutrient content in peat land and permanent production forest areas in Sei Paham Village, Sei Kepayang District, Asahan District . Taking 5 soil sample points was carried out using a proposive random sampling method . The soil sample is then placed in a sterile plastic bag and immediately taken to the laboratory for analysis. The parameters of the soil analysis carried out included pH , C-total, N, P, K, Ca, Na, Mg, CEC and C/N. The results showed that in permanent production forest, the nutrient content was higher than peatland in all parameters of soil chemical analysis.
Mangrove Planting as an Effort to Prevent Abrasion on The Coast of The Pulau Ketam Kuala Perlis Forest Reserve Syawal Harahap, Fitra; Walida, Hilwa; Harahap, Arman; Pane , Rahmadani; Bangun, Budianto; Nasution, Agustina; Rauf, Abdul; Sarifuddin, Sarifuddin; Panjaitan, Bernat
International Journal Of Community Service Vol. 6 No. 1 (2026): February 2026 (Indonesia - Timor Leste)
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v6i1.905

Abstract

Abrasion can cause environmental damage, damage coastal infrastructure, and threaten the lives of communities living around the coast. One effort that can be made to prevent abrasion is planting mangroves along the coastal area. Mangrove forests are important habitats for marine organisms and act as coastal guards against abrasion. One area that has mangrove forests and is quite vulnerable to abrasion is Pulau Ketam Kuala Perlis. This activity aims to increase community awareness about the importance of mangroves in preventing abrasion, specifically in Pulau Ketam Kuala Perlis. The methods used include observation, interviews, and planting. The results of the Community Service Activity show that the community of understands and greatly benefits from mangrove planting efforts and abrasion prevention.  
Co-Authors Abdul Rauf Adlin, Ari Agung Arya, Dimas Agus Suryandi, Fauzi Ainy Dalimunte, Badrul Ainy Dalimunthe, Badrul Ananto, Ananto Andriawan, Febri Arie Hapsani Hasan Basri Arman, Iman Ayu Putri Septiyani, Ika Badrul Ainy Dalimunthe Bangun, Budianto Barus, Wan Afriani Cemda, Abdul Rahman Dalimunthe, Badrul Ainy Dalimunthe, Reza Nazaruddin Dimas Prasetya, Rizki Dini Hariyati Adam Fakhrur Roji Ritonga, Muhammad Fitra Syawal Harahap Fitria Fitria Fitria Harahap, Arman Harahap, Fitra Syawal Harahap, Sulaiman Harahap, Syukur Hilda Julia Mariana, Merlyn Migusnawati, Migusnawati Mochammad Imron Awalludin Muzafri, Al Nasution, Agustina Nini Rahmawati Novilda, Mustamu Elizabeth Pane , Rahmadani Panjaitan, Bernat Pratomo, Bayu Prayoga, Pani Prayuda, Dedek Pristikawati, Devi Putri Septyani, Ika Ayu Reynaldi, Bayu Riko Hardiansyah Rini Susanti Rizal, Khairul Rizwan, Muhammad Ryan Agfandri, Dwi Sarifuddin Sarifuddin Sepriani, Yusmaidar Sidabuke, Simon Sidabukke, Simon Haholongan Silvia Nora, Silvia Siregar, Erdiansyah Sitanggang, Kamsia Dorliana Siti Hartati Yusida Saragih Sudarija, Sudarija Sulistiowati, Rini Syawal Harahap, Fitra Utandi Harahap, Sabribal Yuli Ferdiansyah, Wan Yusminan, Yusminan