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All Journal JURNAL AGRILAND Jurnal Penelitian Karet Kultivasi MEDIAN Jurnal Penelitian Kelapa Sawit Best Journal (Biology Education, Sains and Technology) International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) PERTANIAN TROPIK Contributions of Central Research Institute for Agriculture International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT)
Yayuk Purwaningrum
Universitas Islam Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Health Professions Immunology & microbiology Public Health Other

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Perbaikan Sifat Kimia Tanah dan Pertumbuhan Kelapa Sawit Rakyat TM-1 Dengan Pemberian Kombinasi Pupuk Anorganik-Organik dan Asystasia gangetica (L.) T. Anderson Sebagai Tanaman Penutup Tanah Yenni Asbur; Rizkon Jadida Pulungan; Yayuk Purwaningrum; Murni Sari Rahayu; Chairani Siregar; Dedi Kusbiantoro; Khairunnisyah Khairunnisyah
Jurnal Penelitian Kelapa Sawit Vol 31 No 1 (2023): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v31i1.198

Abstract

Currently, the area of ​​smallholder oil palm plantations in Indonesia reaches 41.44% and is wider than state-owned oil palm plantations which are only 3.87%. However, the role of smallholder oil palm plantations is still not optimal due to low land productivity and yields, so technical culture management is needed that can maintain land productivity and oil palm yields in a sustainable manner through the provision of a combination of inorganic-organic fertilizers and TPT planting. The purpose of this study was to determine the effect of inorganic-organic fertilizers and A. gangetica as TPT in improving soil chemical properties and growth of oil palm TM-1. The study used a factorial randomized design with three replications with two treatment factors, namely a combination of inorganic-organic fertilizers and TPT. The results showed that the interaction of P4T1 (100% inorganic 100%-organic fertilizer combination + TPT) and P3T1 (100% inorganic 100%-organic fertilizer combination + TPT) was able to improve soil chemical properties and growth of oil palm TM-1. Meanwhile, independently the combination treatment of 100% organic 100% inorganic fertilizer and TPT A. gangetica produced the most female flowers and the lowest male flowers.
UTILIZATION OF IN-Situ WASTE FROM COFFEE PLANT (Coffea sp.) AS MULCH AGAINST DROUGHT RESISTANCE OF SIGARARUTANG VARIETY ARABIC COFFEE SEEDLINGS Rusmindo Leny Natalina Hutagalung; Nurhayati; Yayuk Purwaningrum
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 4 No. 2 (2024): April
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v4i2.1569

Abstract

This research was carried out at the experimental field of the Faculty of Agriculture, Islamic University of North Sumatra, Jln. Karya Wisata, Medan Johor District, Medan City, North Sumatra Province. The altitude is ± 25 meters above sea level, with flat topography with soil types of the inceptisol order. This research aims to determine the in situ waste of coffee plants (coffea sp.) as mulch on the drought resistance of Arabica coffee seedlings of the Sigararutang variety. This research consisted of II research stages, namely stage I using a Factorial Split Plot Design (RPT) which consisted of 2 treatment factors, namely: various types of coffee roots (A) and watering intervals (P). The first factor A1 = Fishing roots, A2 = Needle roots and the second factor P1 = Every day watered, P2 = Once every two days watered. The parameters observed were plant height (cm), number of leaves (strands), root length (cm), Wet weight (g) and dry weight (g) and for the second phase of research using a factorial completely randomized design (RAK) consisting of 2 treatment factors, namely: P1=watered every day, P2=watered every two days, P3=three days once watered, the parameters observed were plant height (cm), number of leaves (strands), root length (cm), root volume (ml), root dry weight (g), shoot dry weight (g) and shoot root ratio (NTA). ). The results of phase I research showed that providing watering intervals had a significant effect on drought resistance in coffee seedlings for all observed variables, namely fresh weight, wet weight and coffee stomata. The results of the research showed that providing various types of roots had a significant effect on drought resistance in coffee seedlings for all observed variables, namely coffee stomata. There was no interaction between providing watering intervals and various types of coffee roots. The results of phase II research showed that providing watering intervals had a significant effect on drought resistance in coffee seedlings for all observed variables, namely root dry weight 2 and 3 WST, shoot dry weight 1 and 2 WST, shoot root ratio 1 WST and coffee stomata. The results of the research showed that The provision of various types of roots has a significant effect on the drought resistance of coffee seedlings, all observation variables, namely root dry weight 1 and 2 BST and coffee stomata. There is an interaction between the provision of watering intervals and various types of coffee roots, all observation variables, namely root dry weight 2 WST.
Analisis Pertumbuhan Gulma Asystasia gangetica (L.) T. Anderson Untuk Pemanfaatan Sebagai Tanaman Penutup Tanah Yenni Asbur; Yayuk Purwaningrum; Fiqi Alfisar Lubis; Ajang Maruapey
Median : Jurnal Ilmu Ilmu Eksakta Vol. 16 No. 2 (2024): Jurnal Median
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/md.v16i2.3520

Abstract

Asystasia gangetica merupakan gulma invasif dengan daya adaptasi yang tinggi sehingga sangat berpotensi untuk dimanfaatkan sebagai penutup tanah. Namun pengembangan penggunaan A. gangetica sebagai penutup tanah belum dapat dilakukan secara luas karena keterbatasan data ilmiah terutama mengenai pertumbuhan dan perkembangannya serta sifat interaksinya dengan tanaman pangan di lahan kering. Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Islam Sumatera Utara (UISU), Gedung Johor, Medan. Pengamatan dilakukan secara destruktif pada 10 tanaman setiap minggunya. Dari hasil amatan setiap minggunya terlihat bahwa A. gangetica mudah diperbanyak menggunakan stek batang karena pertumbuhan akar relatif cepat. Pertumbuhan dan perkembangan A. gangetica juga relatif cepat yang terlihat dari pertambahan tinggi tanaman, jumlah cabang, jumlah daun, ILD, laju asimilasi bersih, dan laju tumbuh relatif. Laju penutupan lahan juga cepat, yaitu menutup lahan 100% pada 9 MST, sehingga memenuhi kriteria sebagai penutup tanah. 
THE EFFECT OF HYDROGEL AND WATER ON THE GROWTH OF SHALLOT PLANTS (Allium ascolanicum L) Ginting, Sulaiman; Nasution, Usman; Purwaningrum, Yayuk; Pradip Dalimunthe , Muhammad
International Conference on Health Science, Green Economics, Educational Review and Technology Vol. 4 (2022): International Conference on Health Science, Green Economics, Educational Review and T
Publisher : Universitas Efarina

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.761 KB) | DOI: 10.54443/ihert.v4i.137

Abstract

AbstractThe research was carried out in the greenhouse of the Faculty of Agriculture, Islamic University of North Sumatra. Gedung Johor Village, Medan Johor District, Medan City, North Sumatra Province with an altitude of ± 25 m above sea level. This research will be conducted from December 2018 to February 2019. The aim of this study was to determine the effect of hydrogel and water on the growth of shallots (Allium ascolanicum L ). The design used was a factorial Completely Randomized Design (CRD) which consisted of two factors, namely: the hydrogel administration factor consisted of 4 levels, namely: Control, 1 g/pot, 2 g/pot, 3 g/pot and the volume of water sprinkling consisted of 3 levels, namely: 125 ml/pot (0.25 soil water content field capacity), 250 ml/pot (0.5 soil water content field capacity), 500 ml/pot (soil water content field capacity). The results showed that water spray affected growth, namely on plant height and plant wet weight. The hydrogel did not affect growth, but the combination of water spray and hydrogel affected the growth of plant height, plant wet weight and efficiency of watering as much as 250 ml where plant height and plant wet weight of the 250 ml watering treatment and the 3 g hydrogel were not significantly different from the 500 ml watering treatment and 3 g hydrogel.
Effect of Length and Up Ward Tapping on Physiology and Latex Yield on Rubber Plants RRIM 921 Purwaningrum, Yayuk; Asbur, Yenni; Kusbiantoro, Dedi; Khairunisyah
Jurnal Pertanian Tropik Vol. 8 No. 1 (2021): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.549 KB) | DOI: 10.32734/jopt.v8i1.6311

Abstract

RRIM 921 is a slow starter clone where the metabolic rate is low to moderate which has specific characteristics such as responsiveness to stimulants, relatively more resistance to exploitation pressure and generally thick recovered skin so that it is potential to be exploited. The aim of the study was to determine the effect of the length and direction of the top tapping on the physiology and production of rubber plant clones RRIM 921. This research was conducted at PT. Perkebunan Nusantara III (Persero) Kebun Sei Putih, Afd I is located in Galang District, Deli Serdang Regency, North Sumatra Province with an altitude of 25 meters above sea level with Ultisol soil type. Using a non-factorial Randomized Block Design (RAK) with three replications, as the treatment of groove length and upward tapping direction (S) consisted of 3 levels, namely S/2U d3 ETG/27d; S/4U d3 ETG/27d and S/8U d3 ETG/27d. The results showed that the S/8 U d3 ETG/27d treatment had the highest sucrose content of 3.97 mM, the highest latex Pi level was found in the S/4U d3 ETG/27d treatment of 26.01 mM and the highest Thiol content was found in the S/8U d3 ETG/ treatment. 27d by 1.03 mM. The highest latex production was in January on the S/4U d3 ETG/27d treatment of 13.98 g/p/s and the lowest in April on the S/8U d3 ETG/27d treatment of 0.85 g/p/s.
Analysis Study of Soil Phosphorus Availability on the Growth of Oil Palm Seedlings (Elaeis guineensis Jacq.) with the Application of Liquid Fertilizer and Guano Fertilizer (Bat Manure) in Main-Nursary Lubis, Fiqi Alfisar; Kusbiantoro, Dedi; Asbur, Yenni; Purwaningrum, Yayuk; Kurniawan, Indra Saputra
Contributions of Central Research Institute for Agriculture Vol. 18 No. 2 (2024): April: Agriculture
Publisher : Central Research Institute For Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59651/cceria.v18i2.138

Abstract

Guano fertilizer is a fertilizer derived from bat dung which is organic fertilizer, and contains a lot of P elements that can increase plant growth both vegetatively and generatively. The purpose of this study was to determine the effect of the application of Banana Stem POC and Guano fertilizer (Bat Manure) on soil P availability and growth of oil palm seedlings in the Main-Nursery. The experimental design used was a factorial Randomized Group Design with three replications. The treatments were arranged in four levels each of Banana Stem POC (C0 = Control, C1 = 1.5 ml/l water/Polybeg, C2 = 3 ml/l water/Polybeg, C3 = 4.5 ml/l water/Polybeg) and Guano Fertilizer (K0 = Control, K1 = 200 g/Polybeg, K2 = 400 g/Polybeg, K3 = 600 g/Polybeg). Banana stem is an agricultural waste that can be used as a useful product because it contains potential compounds, while Bat guano fertilizer has several advantages, namely it can stay longer in soil tissue, increase soil productivity and provide food for plants. These results show that the application of Banana Stem POC and Guano Fertilizer can increase the growth of plant height, stem diameter, leaf area and P available.
PRODUKSI KARET DAN KONDISI FISIOLOGIS LATEKS KLON GT 1 PADA BERBAGAI UMUR DAUN DAN CURAH HUJAN Purwaningrum, Yayuk; ASBUR, Yenni
Jurnal Penelitian Karet JPK : Volume 41, Nomor 2, Tahun 2023
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.jpk.v41i2.833

Abstract

Faktor genotipe, lingkungan, dan interaksi genotipe dengan lingkungan memengaruhi perkembangan dan kemampuan menghasilkan lateks yang tinggi. Salah satu faktor dominan adalah kondisi lingkungan yaitu curah hujan bulanan dan sistem eksploitasi yang memengaruhi hasil lateks klon GT 1. Penelitian ini bertujuan untuk mengetahui hubungan yang erat antara beberapa variable fisiologi lateks, umur daun, dan hasil lateks klon GT 1. Hasil penelitian menyimpulkan bahwa fisiologi lateks berfluktuasi yang dipengaruhi oleh umur daun dan kadar air tanah (curah hujan). Perkembangan daun memengaruhi kondisi fisiologis lateks. Pada kondisi daun masih berwarna coklat-hijau cenderung fisiologis lateks rendah dan diduga distribusi fotosintat lebih banyak dialokasikan untuk perkembangan daun. Aktivitas fisiologi lateks mulai meningkat kembali pada saat daun berwarna hijau muda.
Komposisi Komunitas Tumbuhan di Bawah Tegakan Kelapa Sawit Menghasilkan Asbur, Yenni; Purwaningrum, Yayuk
Jurnal Penelitian Kelapa Sawit Vol 32 No 1 (2024): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v32i1.268

Abstract

The composition of vegetation under a tree stand reflects the impact of environmental features such as spontaneous cover of undergrowth in tree stand aisles and is a soil conservation method that is often used and has several benefits, such as reducing erosion, increasing nutrient retention after rain, increasing carbon content soil and other nutrients. The aim of this research is to identify the composition of plant communities and determine the dominant plant species. The research was carried out in a 15 years old smallholder oil palm plantation in Naga Rejo Village, Galang District, Deli Serdang, North Sumatra. Identification of plant community composition under oil palm stands was carried out using the 1 m x 1 m quadrat method. The dominant plant species under oil palm stands is A. trapeziformis from the fern type, followed by A. gangetica from the broadleaf type, P. ensiformis from the fern type, C. acrescens from the grass type, and N. biserrata from the fern type with index its species diversity is classified as moderate (H' = 2.03).
PENINGKATAN PRODUKTIVITAS TANAMAN KARET KLON GT 1 MELALUI KOMBINASI KOSENTRASI STIMULAN DAN WAKTU PENYADAPAN DI KEBUN KARET RAKYAT DELI SERDANG Purwaningrum, Yayuk; ASBUR, Yenni
Jurnal Penelitian Karet JPK : Volume 42, Nomor 2, Tahun 2024
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.jpk.v42i2.921

Abstract

Produktivitas karet rakyat di Indonesia masih rendah karena mutu penyadapan di lapangan yang belum sesuai dengan anjuran. Penelitian bertujuan untuk meningkatkan produktivitas tanaman karet klon GT 1 melalui kombinasi kosentrasi stimulan cair dan waktu penyadapan. Percobaan dilakukan di Desa Naga Rejo Kecamatan Galang, Kabupaten Deli Serdang Sumatera Utara. Metode penelitian yang diterapkan adalah Rancangan Acak Kelompok (RAK) non faktorial dengan tiga ulangan. Perlakuan yang diujicobakan adalah kombinasi kosentrasi stimulan (0,0, 2,5, dan 3,5%) dan waktu sadap (pagi, siang, dan sore). Hasil penelitian menunjukkan bahwa tanaman yang diberi stimulan 2,5% dan 3,5% dan disadap pada pagi hari memiliki karakteristik fisiologi dan pH lateks yang berada dikisaran optimal. Hasil lateks tertinggi diperoleh pada kombinasi perlakuan kosentrasi stimulan 2,5%15d baik disadap pada pagi, siang dan sore. Penyadapan pada siang dan sore hari dengan kosentrasi stimulan 3,5% tidak disarankan pada klon GT 1 umur 10 tahun. Peningkatkan produktivitas dapat dilakukan dengan perlakuan kosentrasi stimulan 2,5%15d dan disadap pada pagi hari.
PENGARUH PERUBAHAN IKLIM TERHADAP PRODUKTIVITAS TANAMAN PADI GOGO (Oryza sativa L.) Purwaningrum, Yayuk; Asbur, Yenni; Nasution, Surya Atmaja; Nuh, Muhammad
AGRILAND Jurnal Ilmu Pertanian Vol 13, No 1 (2025): Agriland: Jurnal Ilmu Pertanian
Publisher : Universitas Islam sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/agr.v13i1.11659

Abstract

Perubahan iklim global, khususnya kenaikan suhu dan cuaca ekstrem, mengancam produktivitas padi gogo (Oryza sativa L.) di lahan kering, terutama melalui gangguan fisiologis pada fase reproduksi. Penelitian ini bertujuan menganalisis pengaruh peningkatan suhu, pemberian kompos daun karet, dan kerapatan tanam terhadap produktivitas padi gogo melalui systematic literature review. Data dikumpulkan dari jurnal ilmiah, laporan penelitian, dan publikasi terkait, kemudian disintesis untuk memperoleh temuan komprehensif. Hasil analisis menunjukkan bahwa suhu >35°C selama fase berbunga mengurangi pembentukan malai dan pengisian gabah. Di sisi lain, kompos daun karet meningkatkan ketersediaan hara, retensi air tanah, dan aktivitas mikroba, sehingga memperkuat ketahanan tanaman terhadap stres suhu. Kerapatan tanam optimal (20–30 tanaman/m²) dapat memaksimalkan penyerapan cahaya dan efisiensi penggunaan sumber daya tanpa kompetisi berlebihan. Interaksi ketiga faktor ini menentukan respons fisiologis dan agronomis tanaman. Simpulan studi mengindikasikan bahwa strategi adaptasi terintegrasi meliputi ameliorasi tanah berbahan organik, penyesuaian kerapatan tanam, dan penggunaan varietas toleran panas diperlukan untuk memitigasi dampak perubahan iklim sekaligus mempertahankan produktivitas padi gogo. Penelitian lebih lanjut diperlukan untuk mengevaluasi sinergi antar-faktor pada kondisi lapangan yang spesifik.
Co-Authors Adri Airil Nasution Ajang Maruapey Arif Anwar Ariifin Ashari Ashari, Ariifin Chairani Hanum Chairani Hanum Chairani Siregar Dedi Kusbiantoro Dedi Kusbiantoro Dian Hendrawan Febri Wira Nanta Ginting Fiqi Alfisar Lubis Ginting, Sulaiman Indra Gunawan Indra Kurniawan Saputra JA Napitupulu Khairunisyah Khairunisyah Nasution Khairunnisyah Khairunnisyah Khairunnisyah Khairunnisyah Khairunnisyah Khairunnisyah Kusbiantoro, Dedi Kusbiantoro, Dedi Lubis, Fiqi Alfisar M Rizki Satria Utomo Mahyuddin Mahyuddin Mindalisma Mindalisma Muhammad Nuh Murni Sari Rahayu Murni Sari Rahayu Nasution, Khairunnisyah Nasution, Surya Atmaja Nasution, Usman Nurhayati Nurhayati Nurhayati Pradip Dalimunthe , Muhammad Rahmi Dwi Handayani Rambe Rahmi Dwi Handayani Rambe Rahmi Dwi Handayani Rambe Rizkon Jadida Pulungan Rusmindo Leny Natalina Hutagalung Sitorus, Syafriani Syamsafitri, Syamsafitri THS Siregar Yeni Asbur Yenni Asbur Yogi Lubis Yusfachri Perangin-Angin