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All Journal International Journal of Biosciences and Biotechnology Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Proceeding International Conference on Global Resource Conservation Biology, Medicine, & Natural Product Chemistry BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Penelitian Pendidikan IPA (JPPIPA) JMM (Jurnal Masyarakat Mandiri) Ganaya: Jurnal Ilmu Sosial dan Humaniora Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL AGRICA Jurnal Entomologi Indonesia Jurnal Pembelajaran dan Biologi Nukleus Dinasti International Journal of Education Management and Social Science Community Development Journal: Jurnal Pengabdian Masyarakat AGRISAINS: Jurnal Ilmiah Magister Agribisnis Pelita Masyarakat Jurnal Ilmiah Pertanian ( JIPERTA) Jurnal Ilmiah Agribios Journal of Natural Sciences International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Mediagro International Journal of Science and Environment Jurnal Multidisiplin West Science

Retna Astuti Kuswardani

Universitas Medan Area

Author-ID : 303616

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Analisis Implementasi Regulasi Penetapan Status Perlindungan Terbatas Ikan Terubuk (Tenualosa ilisha) Siregar, Awaluddin M; Kuswardani, Retna Astuti; Hasibuan, Syahbuddin
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 2, No 1 (2020): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JANUARI
Publisher : Universitas Medan Area

This study aims to determine the form of implementation, find out from the implementation and find out the obstacles and constraints in implementing the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: 43 / KEPMEN-KP / 2016 on the availability of terubuk fish resources and fishermen income in Labuhanbatu Regency. In scientific research that uses qualitative approaches with interpretative normative paradigms, existing theories used in research are constructed as imperfect buildings, this research is descriptive in nature. It can be illustrated that the Implementation of the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: 43 / KEPMEN-KP / 2016 concerning Limited Protection of Terubuk Fish (Tenualosa ilisha) has been carried out in the form of socialization, sea patrol and monitoring activities carried out by the Government, the Indonesian National Army, Police and community watch groups. The effectiveness of the implementation of the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia on the availability of fish resources legally and seen from the catches of fishermen has increased and is quite effective, but not yet significant because the enforcement of sanctions for violations has not yet materialized and the obstacles and constraints of the implementation of the Decree are the implementation of regulations which is not widely socialized, is not accompanied by the assistance of facilities and infrastructure for fishermen is very minimal and not in accordance with the socio-cultural community that is more bound to local wisdom

Analisis Usahatani Jagung (Zea Mays L.) dan Efisiensi Pemasaran di Kecamatan Pangkatan Kabupaten Labuhanbatu terhadap Peningkatan Pendapatan Masyarakat Setya, Rezki Tri; Kuswardani, Retna Astuti; Pane, Erwin
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 1, No 2 (2019): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JULI
Publisher : Universitas Medan Area

Penelitian ini berjudul Analisis usahatani jagung dan efisiensi pemasaran terhadap peningkatan pendapatan masyarakat di Kecamatan Pangkatan Kabupaten Labuhanbatu. Menganalisis tentang pengaruh faktor-faktor produksi yang digunakan dalam usahatani jagung antara lain luas lahan, benih, pupuk, pestisida dan tenaga kerja terhadap produksi jagung, analisis efisiensi pemasaran yang dilakukan masyarakat, analisis pendapatan serta kelayakan usahatani jagung. Bentuk penelitian ini analisa deskriftif dengan metode pendekatan kuantitatif dengan membentuk sebuah model fungsi produksi Cobb-Douglas menggunakan hasil regresi berganda yang diperoleh dari pengolahan data statistik menggunakan program Eviews seri 7. Hasil penelitian menunjukkan bahwa faktor produksi yang dimasukkan sebagai variabel bebas antara lain luas lahan, benih dan pupuk berpengaruh positif dan signifikan terhadap produksi jagung. Variabel pestisida berpengaruh negatif serta tidak signifikan dan tenaga kerja berpengaruh positif namun tidak signifikan terhadap hasil produksi jagung. Untuk analisis efisiensi pemasaran diperoleh hasil bahwa efisiensi pemasaran yang dilakukan sudah efisien. Analisis pendapatan diperoleh hasil bahwa pendapatan yang diterima petani cukup besar dan menguntungkan, serta usahatani jagung tersebut sudah efisien dan layak untuk dikembangkan.Kata Kunci: Usahatani, Jagung, Pemasaran, Pendapatan, Kelayakan Usaha.

Analisis Ketersediaan dan Kebutuhan Kedelai di Provinsi Sumatera Utara Situmorang, Sudiwan; Kuswardani, Retna Astuti; Effendi, Ihsan
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 2, No 2 (2020): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JULI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrisains.v2i2.300

Soybean availability in North Sumatra Province have to be considered, this is caused by soybean being the third most important food after rice and corn. This study aims to analyze the factors that influence the availability and needs of soybeans in North Sumatra. This study uses secondary data on the availability and needs of soybeans in North Sumatra from 2008-2017. Secondary data collected in this study came from related agencies such as the Central Statistics Agency, the North Sumatra Province Food Security Agency, the North Sumatra Province Agriculture Office and the Belawan Agricultural Quarantine Center. From this study it was found that the availability of soybeans in North Sumatra was influenced by harvested area, soybean production and soybean imports. Soybean needs in North Sumatra are influenced by population, consumption / per capita and soybean availability. Analysis of soybean availability and needs in North Sumatra experienced fluctuations in 2008-2017.Â Â

Analisis Konversi Lahan Perkebunan Karet Rakyat Menjadi Pertanian Ubi Kayu Terhadap Pendapatan Petani Desa Cempedak Lobang Kecamatan Sei Rampah Kabupaten Serdang Bedagai Siregar, Agus Saputra; Kuswardani, Retna Astuti; Rahmanta, Rahmanta
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 3, No 2 (2021): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JULI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrisains.v3i2.814

This study aims to determine the difference in income between rubber farmers and cassava farmers. To determine the difference in farming efficiency between rubber farmers and cassava farmers, to determine whether there are marketing prospects for cassava versus rubber. This study uses primary data data obtained by using a list of questions that have been prepared. The results showed that the income in rubber farming was Rp. 33,907,379.20 per hectare, while the income from cassava farming is Rp. 39,725,568.13 per hectare. Income from rubber farming is lower than that of cassava farming, with a difference of Rp. 5,818,188.93. The average difference test shows that there is a significant difference between the income of rubber farming and the income of cassava farming, where the income of cassava farming is greater. The R / C value for rubber farming was 5.16, while the R / C value for cassava farming was 8.47, with a difference in feasibility of 3.31. The results of the average difference test on the R / C value show that there is a significant difference between the feasibility of rubber farming and the feasibility of cassava farming, where cassava farming is more efficient. Cassava marketing in the future has a pretty good prospect, because the demand for cassava and its processed products tends to increase, there are many companies that can accommodate cassava products, and the price level of cassava tends to increase every year.

Strategi Pemasaran Pakan Ikan Di Sumatera Utara Harahap, Abdul Anas; Kuswardani, Retna Astuti; Wahyono, Teguh
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 3, No 2 (2021): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JULI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrisains.v3i2.820

This study aims to (1) determine the feed marketing channel system carried out by the company to consumers (2) to determine the development of feed marketing during the last five years obtained by the company PT. Suri Tani Perdana (3) To determine the factors that affect feed in the company PT. Suri Tani Perdana. The form of this research is descriptive quantitative research using secondary data. Namely time series data (time series) with the method of observation (survey) directly to the company PT. Suri Tani Perdana. The analysis used is analysis using verbalistic and graphic methods, time series trend analysis using the ordinary least square (OLS) method. The quantitative analysis used is by observing the secondary data of the company PT STP (Persero), using simple linear regression analysis. The reason is to see the relationship between feed prices and marketing of feed products.

UJI RESIDU BEBERAPA BAHAN AKTIF PEPTISIDA TERHADAP PARASITOID TELUR Trichogramma sp. (Hymnoptera : Trichogramatidae) DI LABORATORIUM Maya Novita Sari Irawan; Retna Astuti Kuswardani; Sartini sartini
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 3, No 2 (2017): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v3i2.846

This research aims to study was to determine the effect of various types of active ingredient on mortality Trichogramma sp. In the imago stadia and look for a safe pepticide for Trichogramma sp. In the imago and praimago stadia. Research method using experimental method. Test of pepticide effect on pre-epochal mortality and imago Trichogramma sp. Using the fress method of contact residue. The study was prepared based on Completely Randomized Design with 2 factors and 2 replications. The first factor was the active ingredient of pepticide consisting of 10 treatments namely Lamda Silahotrin 25 gr /L (P1), Dimehipo 400 gr/L (P2), Isoprophilamine Glifosat 480 g/L (P3), Brodifakum 0.005% (P4) , Methyl metsulfuron 20.05% (P5), Triadimefon 200 gr/L (P6), Sipermetrin 50 gr/L (P7), Propiconazole 125 g / L and Tricyclazole 400 gr / L (P8), Cypermethrin 113 g / L ( P9), Annonain (P10). The second factor was the concentration of pesticide (K) consisting of 3 treatments, namely 0.5 ml/L (K1), 1ml / L (K2), 1.5ml/L (K3). The results showed that the provision of various active ingredients of pesticide had a significant effect on egg parasitoid morality Trichogramma sp. On imigo stadia at 12 hours After application, 24 hours After application and 36 hours After application. In praimigo stadia provide a safe pesticide active ingredient on the 12 hours imagion stage After application. The best treatment on P3k3 with an emerge of 79.3%.

Pendugaan Populasi Penyu Hijau (Chelonia Mydas) di Pulau Jemur Kabupaten Rokan Hilir Riau Bidasari bidasari; Retna Astuti Kuswardani; Jamilah Nasution
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 2, No 2 (2016): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v2i2.804

Research on the estimation of green turtle population (Chelonia mydas) was conducted in Jemur Island of Rokan Hilir Regency of Riau Province in May-June 2012. The purpose of this research is to estimate the green turtle population in Jemur Island Rokan Hilir regency, Riau Province. The research method used is the absolute method of absolute sampling that results in the number of population estimates in the form of the number of individuals per unit of sand surface units or habitats observed. The results showed that the number of different individuals as many as 229 nests. The condition of Jemur Island indicates the suitability of location for green turtle habitat to lay and incubate eggs. Physical factors corresponding to the distribution of saraang are said to be productive, ie the average number of nests per day of 8 (eight) nests or 8 (eight) different individuals. Of the 229 nests observed, the depth of the hive ranged from 60cm - 80cm and did not significantly affect the number of eggs placed with the results of correlation (r = 0.43).

KEANEKARAGAMAN JENIS MANGROVE DI PANTAI MUTIARA DESA KOTA PARI KECAMATAN PANTAI CERMIN KABUPATEN SERDANG BEDAGAI PROVINSI SUMATERA UTARA Sina sina; Retna Astuti Kuswardani; Jamilah Nasution
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 2, No 1 (2015): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v2i1.774

This Research on the diversity of Mangrove species in Pantai Mutiara Pari Village, Pantai Cermin Subdistrict, Serdang Bedagai Regency, North Sumatera Province was conducted in October s.d November 2012. The objective of this research is to know the diversity of species and mangrove vegetation based on growth level. The research method is explorative survey technique method. The sample collection for the research vegetation data consisted of observation plots with a total of 12 plots derived from 3 transects. The results of the study were 6 species of mangroves: Avicennia marina, Bruguiera sexangula, Rhizophora apiculata, Rhizophora stylosa, Rhizophora mucronata, and Nypa fruticans, belonging to 3 families namely Avicenniaceae, Rhizophoraceae, and Arecaceae. From the analysis, it is known that Avicennia marina, Rhizophora apiculata and Rhizophora stylosa species dominate the coastal area of Pantai Mutiara Desa Kota Pari Pantai Pantai Cermin. Based on the analysis of data obtained, the index of diversity (H ') of mangroves on the beach is low, ie the seedlings H' = 0.87, the H1 = 1,34 and the H '= 1.20. This indicates that the type of mangrove contained in the beach is small.

Population dynamics of Myzuspersicae (Sulzer) on intercropping potatoes with other plants on Karo Highland Lamria Sidauruk; Darma Bakti; B. Sengli J. Damanik; Retna Astuti Kuswardani
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.207 KB)

Green peach aphid (MyzuspersicaeSulze) represents one of the major pest affecting decreased production which found in different potato fields in Karo highland. Decreasing incurredin two ways: the direct damages that are caused by the insectfeeding on the plants and the indirect damages caused to potato planting materials as a virus vector. There are different methods for controlling green peach aphids, all of them relying inthe use of chemicals and this method makes food production contaminated by pesticide residu. So, using non-chemical methods of cultivation contribute to “ecological” food production.Intercropping is one way of reducing pest insect populations in such vegetable crops.This study was conducted to determine the population dynamics of Myzuspersicae (Sulzer) on Intercropping system of potato plant with other vegetables plant on Karo Highland. The host plant was cultivar Granola of potato and the intercropping plant respectively were cabbage, mustard, celery, onions, carrot and bean. The results showed that M. persicae was consistently at different densities in different intercropping plant on potato. The aphid was first recorded at three week until planting. The kind of inter cropping culture plants significantly reduced the number of aphid. The lowest number of aphid found respectively inintercroppingpotatoesandmustard, potatoesandonions, andpotatoesandcelery. There was 0.80 aphids /leaf, 1,12aphids/leaf, 1,48 aphids/leaf. At the 2nd observation found the number of aphid was lowest atpolyculture potatoes and mustards were 1,68 aphid/leaf, at popatoes and onions were 3,28 aphid/leaf, at popatoes and celery 3,00 aphid/leaf. The number of aphids steadily increased with significant at differencesintercroppingplant till the 3rd observation (9 weeks until planting) respectively where 2,80aphid/leaf, 3,42 aphid / leaf and 4,20 aphid/leafwere recorded. Observation for natural enemies of M. persicaeshowed that fewnatural enemiesfound in theagro-ecosystem. There are Episyrphusbalteatus, Chrysoperlacarnea, phidiusmatricarieae and Coccinellaseptempunctata. The population density of all of the natural enemies was highest at polyculture than monoculture of potato. After that, as the population of M. persicae started decline, the same trend was followed by all of its natural enemies.

Peningkatan Kualitas Hidup Bekerja pada Masyarakat Desa Sumber Melati Diski Kecamatan Sunggal Kabupaten Deli Serdang Hasanuddin Hasanuddin; Retna Astuti Kuswardani; Sri Milfayetty; Abidah Ayu
Pelita Masyarakat Vol 1, No 2 (2020): Pelita Masyarakat, Maret
Publisher : Universitas Medan Area

Improving the quality of work life in the community, especially in Sumber Melati Diski Village, needs to be done. The purpose of this activity is to provide and strengthen the community to develop themselves and have the ability to cope with stress so that they can achieve a quality work life. The selection of partner locations is based on the needs of the community in Sumber Melati Village to alleviate the stress problem that is carried out through every community activity, both Posyandu, Perwiritan and others. The method is a workshop with creative art techniques. The capacity of the community is strengthened is to know the source of the problem, analyze, create and implement the design of problem alleviation, counseling and play therapy. The results of the mentoring show that people who solve problems with creative techniques can solve their problems personally and make decisions quickly. Furthermore, creative counseling that is carried out in groups can overcome emotional problems and minimize social problems. From this activity it was found that creative techniques in problem solving can minimize stress on the community which can effectively improve the quality of working life in the community of Sumber Melati Diski Village.

Co-Authors Abdul Rahman Abidah Ayu Aisar Novita alqindi, muhammad iqbal Aminuyati Ariani Safitri, Sri Azwana Azwana Azwana Azwana B. Sengli J. Damanik Bidasari bidasari bidasari, Bidasari Butar-Butar, Alfons Dwi Putra Chairani Hanum Chairani Hanum Dalimunthe, Arpan Darma Bakti Darma Bakti Dewi Siregar, Fitri Yanni E. Harso Kardhinata Effendi, Ihsan Ellen Lumisar Panggabean Emmy Harso Kardhinata Endang Sari Simanullang Erwin Hasibuan Erwin Nyak Akoeb Erwin Nyak Akoeb, Erwin Nyak Erwin Pane, Erwin Eryanto, Okto Eva Sriana Ferdiansyah, Yudi Firmansyah, Dimas Ginting, Dian Dominika br Ginting, Natal Haliatur Rahma, Haliatur Hanny Hafiar Harahap, Abdul Anas Harahap, Darmadi Erwin Hasanuddin Hasanuddin Hasibuan, Syahbuddin Hernosa, Siswa Panjang HS Siregar, Tumpal Ida Ayu Putu Sri Widnyani Ida Sari Siregar Ika Listiana Indah Apriliya Indri Yanil Vajri Irawan, Maya Novita Sari Lamria Sidauruk Lubis, Susilawati M. Akbar Siregar Magdalena Saragih Maya Novita Sari Irawan Mitra Musika Lubis Muhammad Darwis Muhammad Deaprama Aydra Muhammad Reza Aulia Napitupulu, Beatrix Sofranes Nasution, Jamilah Nasution, Lita Natal Ginting Nina Salmaniah Siregar Noer, Zulhery Nurhidayana Nurhidayana Nurhidayana, Nurhidayana Puspita, Diah Eka Rahmad Fauzi Rahmad Syah, Rahmad Rahmanta Rahmanta, Rahmanta Ramadhana, Muhammad Bobby Saipul Sihotang Saipul Sihotang Saipul Sihotang, Saipul Salqaura, Siti Sabrina Saragih, Bahdan Saragih, Magdalena Sartini Sartini Sarumaha, Agustinus Seca Gandaseca Seri Sekar Sari Setya, Rezki Tri Silvia Nora, Silvia Sina sina Sina sina, Sina Siregar, Agus Saputra Siregar, Awaluddin M Siregar, M. Akbar Siregar, Nina Salmaniah Siti Mardiana Situmorang, Sudiwan Sri Milfayetty Surip Mawardi Suswati Syahbudin Hasibuan, Syahbudin Taufik Siregar Trizelia . Tumpal H.S. Siregar Vajri, Indri Yanil Wijoyo, Hadi Wiwik Handayani Yabani, Yabani Yusniar Lubis Zahari Zen Zul Fadhly Zul Fadhly

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