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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.

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.

Analisis Kelayakan Usaha Tahu Mandiri Desa Kotangan Kecamatan Galang Kabupaten Deli Serdang Muhammad Deaprama Aydra; Retna Astuti Kuswardani; Mitra Musika Lubis
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 2, No 1 (2020): JIPERTA MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v2i1.237

The purpose of this study is to analyze the feasibility of the financial and non-financial aspects of Mandiri tofu business. Data analysis methods used are qualitative (legal, environmental, market and marketing, technical and management and human resource aspects) and quantitative to analyze financial aspects through four investment criteria, namely NPV, IRR, Net B / C, payback period. Non-financial aspects of the legal aspect are unfeasible because the Business Ownership Permit only has a Letter of Submission of Land Tenure by Compensation. The management aspect isn’t feasible because this business doesn’t yet have a good financial record and doesn’t have an organizational structure. Environmental aspects aren’t feasible because it discharges its wastewater directly to the nearest river without special treatment. The financial analysis used NPV value obtained at Rp 109,897,985, Net B / C at 2.02, IRR at 49.26%, and payback period for three years and ten months eleven days on the first investment and NPV value obtained at Rp 66,127,532, Net B / C is 1.25, IRR is 34.06%, and the payback period is two years ten months and thirteen days on the second investment. Financial and non-financial aspects state Mandiri tofu business is feasible to except in legal, management, and environmental aspects.

KAJIAN STRATEGI INTEGRASI NILAI-NILAI KEBERLANJUTAN KEDALAM PROSES PEMBANGUNAN KELAPA SAWIT RAKYAT DI TAPANULI SELATAN Zahari Zen; Retna Astuti Kuswardani; Yusniar Lubis
JURNAL AGRICA Vol 14, No 1 (2021): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v14i1.4131

Perkembangan luas areal kelapa sawit sangat mengkhawatirkan karena sudah merangsek ke areal dengan kemiringan lebih dari 40%. Masalahnya bukan hanya karena nilai produktivitas sawit yang rendah, tetapi juga karena laju deforestasi semakin meningkat. Kajian bertujuan untuk mengidentifikasi nilai keberlanjutan kelapa sawit di Tapanuli Selatan, dalam rangka memberikan pilihan strategi penerapan Rencana Aksi Sawit Berkelanjutan (RAD-SB). Metode yang digunakan dalam penelitian ini adalah eksploratif dan survei lapangan dengan Interview terstruktur dan tidak terstruktur dengan petani independen, agen TBS dan pengelola PKS. Hasil penelitian dikelompokkan dua strategi yaitu strategi pada tingkat kelembagaan di Kabupaten dan strategi pada tingkat lapangan di Desa. Pada tingkat kelembagaan di Kabupaten terlihat bahwa peranan lembaga pendukung yang tergabung dalam FOKSBI masih belum solid, meskipun sudah memiliki komitmen yang sama untuk menerapkan aksi pembangunan sawit berkelanjutan.Elaborasi aspek-aspek keberlanjutan yang diperlukan untuk menerapkan RAD-SB masih dimengerti dalam dimensi yang berbeda-beda. Strategi tingkat lapangan bertujuan untuk mencari cara-cara atau sistem budidaya sederhana untuk meningkatkan pendapatan petani, tanpa merusak sumberdaya hutan dan lahan. Terdapat potensi yang besar untuk meningkatkan produktivitas TBS tanpa merusak sumberdaya alam, meningkatkan kualitas buah dan melepas jerat monopoli pasar TBS yang terjadi. Praktik budidaya ekspansif dapat diubah menjadi budidaya hemat lahan dengan sistem perkebunan yang lebih intensif dan teknologi yang sederhana, murah, mudah dan memenuhi persyaratan konservasi. Penguatan lembaga penyuluhan dan pendanaan berkelanjutan merupakan keniscayaan penerapan RAD-SB agar meeningkatkan output dan outcome yang nyata, yaitu terwujudnya kesejahteraan petani secara luas dan terwujunya sustainable-landscape di Tapanuli Selatan.

KAJIAN STRATEGI INTEGRASI NILAI-NILAI KEBERLANJUTAN KEDALAM PROSES PEMBANGUNAN KELAPA SAWIT RAKYAT DI TAPANULI SELATAN Zahari Zen; Retna Astuti Kuswardani; Yusniar Lubis
JURNAL AGRICA Vol. 14 No. 1 (2021): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v14i1.4131

Perkembangan luas areal kelapa sawit sangat mengkhawatirkan karena sudah merangsek ke areal dengan kemiringan lebih dari 40%. Masalahnya bukan hanya karena nilai produktivitas sawitÂ yang rendah, tetapi juga karena laju deforestasi semakin meningkat. Kajian bertujuan untuk mengidentifikasi nilai keberlanjutan kelapa sawit di Tapanuli Selatan, dalam rangka memberikan pilihan strategi penerapan Rencana Aksi Sawit Berkelanjutan (RAD-SB). Metode yang digunakan dalam penelitian ini adalah eksploratif dan survei lapangan dengan Interview terstruktur dan tidak terstruktur dengan petani independen, agen TBSÂ dan pengelola PKS. Hasil penelitian dikelompokkan dua strategi yaitu strategi pada tingkat kelembagaan di Kabupaten dan strategi pada tingkat lapangan di Desa. Pada tingkat kelembagaan di Kabupaten terlihat bahwa peranan lembaga pendukung yang tergabung dalam FOKSBI masih belum solid, meskipun sudah memiliki komitmen yang sama untuk menerapkan aksi pembangunan sawit berkelanjutan.Elaborasi aspek-aspek keberlanjutan yang diperlukan untuk menerapkan RAD-SB masih dimengerti dalam dimensi yang berbeda-beda. Strategi tingkat lapangan bertujuan untuk mencari cara-cara atau sistem budidaya sederhana untuk meningkatkan pendapatan petani, tanpa merusak sumberdaya hutan dan lahan. Terdapat potensi yang besar untuk meningkatkan produktivitas TBS tanpa merusak sumberdaya alam, meningkatkan kualitas buah dan melepas jerat monopoli pasar TBS yang terjadi. Praktik budidaya ekspansif dapat diubah menjadi budidaya hemat lahan dengan sistem perkebunan yang lebih intensif dan teknologi yang sederhana, murah, mudah dan memenuhi persyaratan konservasi. Penguatan lembaga penyuluhan dan pendanaan berkelanjutan merupakan keniscayaan penerapan RAD-SB agar meeningkatkan outputÂ dan outcome yang nyata, yaitu terwujudnya kesejahteraan petani secara luas dan terwujunya sustainable-landscape di Tapanuli Selatan.

EDUKASI DAN PENYULUHAN HIDUP BERSIH DAN SEHAT PADA GURU-GURU LPIT NURUL ILMI PASCA COVID 19 Saipul Sihotang; Ellen Lumisar Panggabean; Sartini Sartini; Retna Astuti Kuswardani
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023): Volume 4 Nomor 2 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i2.12939

Perilaku hidup bersih dan sehat harus dilaksanakan oleh setiap warga masyarakat. Namun, tidak semua anggota masyarakat terutama anak-anak di Sekolah Nurul Ilmi mempunyai pengetahuan dan kesadaran untuk melakukan hidup bersih dan sehat pasca Covid-19. Tujuan dari pengabdian ini adalah untuk meningkatkan pengetahuan dan kesadaran kepada Guru-guru NURUL ILMI tentang pentingnya menjaga hidup bersih dan sehat selama pasca Covid-19. Metode yang digunakan dalam kegiatan ini adalah metode ceramah, dan praktek. Peserta dari pengabdian ini berjumlah 40 peserta yang terdiri dari guru-guru, dan petugas kebersihan di NURUL ILMI. Hasil pengabdian menyatakan bahwa terjadi peningkatan pengetahuan dan kesadaran pada guru-guru dan petugas kebersihan mengenai hidup bersih dan sehat pasca Covid-19. Dengan adanya kegitan pengabdian masyarakat ini diharapkan mneumbuhkan rasa kepedulian terhadap sesame dan perlunya menjaga kesehatan pasca covid-19

Analisis Kelayakan Usaha Tahu Mandiri Desa Kotangan Kecamatan Galang Kabupaten Deli Serdang Muhammad Deaprama Aydra; Retna Astuti Kuswardani; Mitra Musika Lubis
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 2, No 1 (2020): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v2i1.237

The purpose of this study is to analyze the feasibility of the financial and non-financial aspects of Mandiri tofu business. Data analysis methods used are qualitative (legal, environmental, market and marketing, technical and management and human resource aspects) and quantitative to analyze financial aspects through four investment criteria, namely NPV, IRR, Net B / C, payback period. Non-financial aspects of the legal aspect are unfeasible because the Business Ownership Permit only has a Letter of Submission of Land Tenure by Compensation. The management aspect isnâ€™t feasible because this business doesnâ€™t yet have a good financial record and doesnâ€™t have an organizational structure. Environmental aspects arenâ€™t feasible because it discharges its wastewater directly to the nearest river without special treatment. The financial analysis used NPV value obtained at Rp 109,897,985, Net B / C at 2.02, IRR at 49.26%, and payback period for three years and ten months eleven days on the first investment and NPV value obtained at Rp 66,127,532, Net B / C is 1.25, IRR is 34.06%, and the payback period is two years ten months and thirteen days on the second investment. Financial and non-financial aspects state Mandiri tofu business is feasible to except in legal, management, and environmental aspects.

BUSINESS ANALYSIS OF CERTIFIED COCOA (THEOBROMA CACAO) SEED NURSERIES IN NORTH SUMATRA PROVINCE (CERTIFIED COCOA (THEOBROMA CACAO) SEED BUSINESS ANALYSIS IN NORTH SUMATRA PROVINCE) Eva Sriana; Retna Astuti Kuswardani; Erwin Nyak Akoeb
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 3 No. 4 (2023): August
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v3i4.1080

This study aims 1) to find out and analyze how to determine the criteria for certified seeds and 2) to find outand analyze the difference in income levels of certified cocoa seed nursery farms in North Sumatra Province. This research was conducted at seed breeders located in Deli Serdang Regency and Pematang Siantar City. This area was chosen because in these two areas there are certified cocoa seed breeders in the province of North Sumatra. The number of respondents is 5 certified seed breeders who have met several predetermined criteria. The research method used in this study was a survey method, data collection was carried out onJanuary to March 2023.The objectives of this research are answered quantitatively by using the analysis of Total Revenue, Nett Revenue, R/C Ratio and B/C Ratio. The results of the study showed that the cocoa nursery farming carried out provided benefits to all cocoa seed breeders. In the feasibility analysis it is known that the cocoa nursery farming business shows that the cocoa nursery business has received an appropriate assessment of PT. Sahabat Sejati, CV. Prince Agung, CV. Putera perkasa and CV. Dharma Nusantara but the nursery business carried out by CV. Wana Bhakti received an unworthy rating.

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