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KAJIAN BEBERAPA UNSUR HARA PADA LAHAN REPLANTING TANAMAN KELAPA SAWIT ( Elaeis guineensis Jacq.) DI KELURAHAN BAKARAN BATU KECAMATAN RANTAU SELATAN Qishty, Muhammad Yasar; Harahap, Fitra Syawal; Sepriani , Yusmaidar; Adam, Dini Haryati
Agro Estate Vol 7 No 1 (2023): Juni 2023
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v7i1.156

Abstract

Penanaman kembali perkebunan kelapa sawit merupakan salah satu cara alternatif untuk menjaga kelangsungan perkebunan kelapa sawit di masa yang akan datang namun penggunaan lahan untuk penanaman kelapa sawit yang ditanam kembali dengan bibit baru memiliki kelemahan, seperti tingkat produktivitas lahan dan kemungkinan perubahan struktur tanah akibat penanaman kelapa sawit di masa lalu. Produktivitas lahan dipengaruhi oleh status hara dan kesuburan tanah. Sebelum dilakukan penanaman kembali pada lahan yang akan ditanami kembali perlu diketahui kandungan unsur hara yaitu pH tanah, Nitrogen, Fosfor, Kalium, C Organik, Kapasitas Tukar Kation dan Berdasarkan Tingkat Kejenuhan sehingga dapat diketahui status kesuburan tanah pada lahan tersebut. Penelitian dilakukan dengan metode survei Penelitian dilaksanakan di lahan tanaman kelapa sawit masyarakat Kelurahan Bakaran Batu Kecamatan Rantau Selatan Kabupaten Labuhanbatu dengan ketinggan 28 meter diatas permukaan laut pengambilan sampel dilakukan pada dua kedalaman yaitu kedalaman 0-30 cm dan kedalaman 30-60 cm. Pengambilan sampel juga dilakukan pada dua perbandingan lahan yaitu lahan milik masyarakat dan hutan tanaman masing-masing sebanyak 10 titik pada dua kedalaman yang sama. Sampel tanah dari setiap lokasi dikomposisikan dan kemudian dianalisis. Analisis tanah dilakukan di laboratorium kimia dan ditentukan statusnya berdasarkan Badan Penelitian dan Pengembangan Pertanian Kementan (2012). Hasil kajian menunjukkan status hara dan tingkat kesuburan tanah di lokasi tersebut rendah sehingga telah dilakukan upaya untuk memperbaiki status hara dan kesuburan tanah pada lahan yang akan dibangun. digunakan secara optimal untuk penanaman kelapa sawit.
PENGARUH PEMBERIAN ABU SEKAM PADI DAN KOTORAN KAMBING TERHADAP PERTUMBUHAN BAYAM MERAH (Amaranthus Gangeticus) Harahap, Fitra Syawal; Arman, Iman; Assauwab, Muhammad Husaini
Jurnal Al Ulum LPPM Universitas Al Washliyah Medan Vol. 12 No. 1 (2024): Jurnal Al Ulum
Publisher : UNIVERSITAS AL WASHLIYAH (UNIVA) MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/alulum.v12i1.632

Abstract

Penelitian ini bertujuan untuk menentukan dosis abu sekam padi dan dosis pupuk kandang serta interaksi dosis yang optimal untuk pertumbuhan dan hasil bayam. Penelitian ini dilakukan di Mas Graha Village, Kabupaten Labuhanbatu yang berada pada ketinggian 26 meter diatas permukaan laut pada bulan agustus sampai bulan desember 2020. Penelitian menggunakan rancangan kelompok faktorial yang terdiri dari dua faktor. Faktor pertama abu sekam padi (A) terdiri dari 4 taraf, yaitu : A0 = 0 ton/ha (kontrol), A1 = 1 ton/ha setara dengan 50 g/m2 (dosis anjuran), A2 = 1,5 ton/ha setara dengan 75 g/m2. Faktor kedua yakni pemberian kotoran kambing (K) dengan tiga taraf yaitu : K0 = 0 ton/ha (kontrol) K1 = 2 ton/ha setara dengan 200 g/m2 (dosis anjuran), K2 = 4 ton/ha setara dengan 400 g/m2, K3 = 6 ton/ha setara dengan 600 g/m2. Adapun Parameter yang diukur adalah tinggi tanaman (cm), jumlah daun (helai) , berat per Tanaman Sampel (g). Hasil penelitian menunjukkan bahwa pemberian kotoran kambing 4 ton/ha setara dengan 400 g/m2 mampu meningkatkan tinggi tanaman, jumlah daun dan berat per tanaman bayam sedangkan aplikasi 1,5 ton/ha abu sekam padi setara dengan 75 g/m2 mampu meningkatkan tinggi tanaman, jumlah daun tanaman bayam Merah.
Pemberian Pupuk Urea dan Pupuk Kandang Lembu Terhadap Pertumbuhan dan Produksi Tanaman Sawi Hijau (Brassica Juncea L.) Harahap, Fitra Syawal; Sagala, Febri Khoiri
JURNAL AGROPLASMA Vol 9, No 1 (2022): AGROPLASMA VOL 9 NO 1
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v9i1.2696

Abstract

The application of urea and cow manure on ultisol soil for mustard greens (Brassica Juncea L) aims to determine the treatment of cattle fertilizer on increasing leaf area, root volume and plant fresh weight. as well as the interaction of giving oxen fertilizer (t/ha) and urea fertilizer to mustard greens. This research was conducted in N4 Village with a height of 18 meters above sea level in Labuhanbatu Regency from December 2020 to March 2021. The study will be conducted with a factorial group design. The first factor is the provision of factorial Randomized Block Design (RAK) which consists of 2 factors, the first factor is Ox manure (K) which consists of 3 levels and the second factor is the provision of Urea fertilizer which consists of 2 dose levels, so that 6 treatment combinations are obtained. - 4 replicates each, resulting in 24 plots. Each plot consisted of 25 plants and 5 plants were taken as samples. Parameters observed were plant height (cm), number of leaves (strands), leaf area (cm2), root volume (ml) and plant fresh weight (g). The data obtained from the results of the study were statistically analyzed by means of variance and continued with the Duncan's New Multiple Range Test (DNMRT) at a level of 5%. The results of the study. urea dose of 100 kg/ha was able to produce an increase in leaf area, root volume and plant fresh weight. As well as the interaction of the application of ox-fertilizer (t/ha) and urea fertilizer gave a significant effect on the parameters of leaf area, root volume and plant fresh weight.
Level of Land Adjustment Durian (Durio zibethinus Murr.) in District Sigumpar District Toba Sidabukke, Simon Haholongan; Harahap, Fitra Syawal; Kurniawan, Dedi
JURNAL AGROPLASMA Vol 11, No 1 (2024): JURNAL AGROPLASMA VOLUME 11 NO 1 TAHUN 2024
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v11i1.5636

Abstract

Utilization of land for other uses in Sigumpar District needs to be supported by information regarding land suitability. Therefore, an evaluation of the characteristics of the level of land suitability in the area was carried out, to analyze improvement efforts aimed at increasing productivity, as well as to create a map of actual land suitability and potential land suitability for durian plants in the district. The method used is the survey method. Land units are based on soil maps, slope maps, altitude maps, land cover maps, consisting of 6 land units and 18 points. The analysis method is the comparing (matching) method. The results of the research show that the level of land suitability for durian plants (Durio zibethinus Murr.) The actual land conditions suitable for durian cultivation in Sigumpar District are 1,856.22 ha. (2) Potential land conditions suitable for durian cultivation in Sigumpar District are 1,726.22 ha. Where limiting factors that cannot be remedied are temperature and soil texture, while limiting factors such as nutrient retention, nutrient availability, water availability and erosion hazards can be remedied in the form of: (1). Liming and fertilization adjusted to the results of soil tests on the land. Making drainage channels, planting parallel to contours, and making terraces. Keywords: land suitability evaluation, durian plant, utilizzation of other area, subdistrict of Sigumpar
The Effect of Gibberelin in Salin Soil on Growth of Vetiver (Vetiveria zizanioides L.) Novita, Aisar; Rahmawati, Nini; Cemda, Abdul Rahman; Nora, Silvia; Harahap, Fitra Syawal
Jurnal Online 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 (620.804 KB) | DOI: 10.32734/jopt.v8i1.6359

Abstract

Salinity is one of the problems in agricultural land in the world, including in Indonesia. Vetiver is quite tolerant of planting in saline soils at a certain level of salinity, but vetiver growth is inhibited at high salinity levels. The purpose of this study was to evaluate the effect of gibberellin in saline soils on the growth and production of vetiver (Vetiveria Zizanioides L.). This research was conducted in the greenhouse of the Faculty of Agriculture, Universitas Sumatra Utara, Medan. This study used a non-factorial completely randomized design, It was salinity stress (S) which consisted of 3 factors: Gibberellin concentrations of 0 (without treatment), 50 ppm, and 100 ppm. The results of this study indicate that giving Gibberellins in salinity stress conditions has a significant effect on the observed variables of plant height, specific leaf area, and cuticle thickness.
Response on Growth and Production of Vetiver (Vetiveria zizanioides L.) on Gibberelin Under Salinity Stress Conditions Novita, Aisar; Rahmawati, Nini; Harahap, Fitra Syawal; Walida, Hilwa; Cemda, Abdul Rahman; Fitria; Julia, Hilda; Susanti, Rini; Pratomo, Bayu; Nora, Silvia; Mariana, Merlyn; Basri, Arie Hapsani Hasan
Indonesian Journal of Agricultural Research Vol. 4 No. 1 (2021): InJAR, Vol. 4, No. 1, March 2021
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v4i1.5514

Abstract

Vetiver (Vetiveria zizanioides L.) plants are able to protect the soil from erosion and are tolerant of salinity stress. However, at high salinity levels, vetiver plants show a decreasing growth. The application of gibberelin is expected to increase the growth of vetiver in salinity stress conditions. The purpose of this study was to evaluate the growth responsiveness and production of vetiver the application of gibberelin under salinity stress conditions. This research was conducted in the green house of the Faculty of Agiculture, Universitas Sumatera Utara, Medan. This study used a non-factorial completely randomized design, namely the salinity stress (S) which consisted of 3 levels, each treatment was repeated 3 times, so that 9 treatment combinations were obtained: the concentration of gibberelin was 0 (no treatment), 50 ppm and 100 ppm.
RESPON PEMBERIAN AIR KELAPA DAN KOMPOS KULIT PISANG TERHADAP PERTUMBUHAN BAYAM HIJAU (Amaranthus tricolor L.) Syah Yudi, Syah Yudi; Lestari, Widya; Putri Septyani, Ika Ayu; Harahap, Fitra Syawal
Agros Journal of Agriculture Science Vol 26, No 1 (2024): Edisi APRIL
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i1.4259

Abstract

Green spinach (Amaranthus tricolor L.) has high nutritional value so efforts are needed to increase its production, one of which is providing good nutrition and growth regulators (ZPT) for plants. The aim of this research was to determine the effect of banana peel compost, the effect of coconut water ZPT, and the combination of banana peel and coconut water factors in increasing the growth of green spinach. This research was carried out from January 25 2024 to February 18 2024 located on Jln. Tapian Nauli No. 67, Bale Lake, Rantau Selatan District, Labuhanbatu Regency, North Sumatra. This research used a factorial randomized block design (RAK) consisting of 2 factors. Factor A (banana peel compost) includes P0: control, P1: 250g/plant, P2: 500g/plant and Factor B (coconut water zpt) includes A0: control, A1: 150ml/liter of water, A2: 300ml/liter of water, Each treatment was repeated 3 times to obtain 27 experimental units and analyzed using the ANOVA test at 5% and 1% levels followed by the Duncan 5% test. With research parameters, namely plant height, number of leaves, root length, and plant fresh weight. It is known from the research results that the provision of compost from banana peel waste and coconut water zpt has a significant effect on the height of plants in 1 week after planting (WAP), 2 WAP, and 3 WAP, the number of leaves in 1 WAP, 2 WAP, 3 WAP. Root length and wet weight of spinach with banana peel compost treatment 500g/plant and coconut water zpt 300ml/ liter of water showed the highest response. Key words : green spinach, banana peel compost, coconut water olc. INTISARIBayam hijau (Amaranthus tricolor L.) memiliki nilai gizi yang tinggi sehingga diperlukan upaya untuk meningkatkan produksinya, salah satunya adalah memberikan nutrisi dan zat pengatur tumbuh (zpt) yang baik bagi tanaman. Tujuan penelitian ini adalah untuk mengetahui pengaruh kompos kulit pisang, pengaruh zpt air kelapa, dan kombinasi faktor kulit pisang dan air kelapa dalam meningkatkan pertumbuhan bayam hijau. Penelitian ini dilaksanakan pada 25 Januari 2024 sampai dengan 18 Februari 2024 berlokasi di Jln. Tapian Nauli No. 67, Danau Bale, Kecamatan Rantau Selatan, Kabupaten Labuhanbatu, Sumatera Utara. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktorial terdiri dari 2 faktor. Faktor A (kompos kulit pisang) meliputi P0 : kontrol, P1 : 250g/ tanaman, P2 : 500g/ tanaman dan Faktor B (zpt air kelapa) meliputi A0 : kontrol, A1 : 150ml/ liter air, A2 : 300ml/ liter air, masing-masing perlakuan diulang sebanyak 3 kali sehingga diperoleh 27 satuan percobaan dan dianalisis menggunakan uji anova taraf 5% dan 1% dilanjut dengan uji Duncan 5%. Dengan parameter penelitian, yaitu tinggi tanaman, jumlah daun, panjang akar, dan berat basah tanaman. Diketahui dari hasil penelitian bahwa pemberian kompos dari limbah kulit pisang dan zpt air kelapa berpengaruh nyata terhadap tinggi tanaman 1MST, 2MST, dan 3MST, jumlah daun 1MST, 2MST, 3MST. Panjang akar dan berat basah bayam dengan perlakuan kompos kulist pisang 500g/tanaman dan air kelapa 300ml/ liter air menunjukkan respon tertinggi. Kata kunci : bayam hijau, kompos kulit pisang, zpt air kelapa.
ISOLASI DAN KARAKTERISASI JAMUR DARI PUPUK KOMPOS LIMBAH SAWIT Sa’adah, Saroh Ziatun; Lestari, Widya; Harahap, Fitra Syawal; Yusida Saragih, Siti Hartati
Agros Journal of Agriculture Science Vol 26, No 2 (2024): Edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i2.4621

Abstract

Oil palm plants are commodities that play an important role in improving the national economy, especially increasing employment opportunities and increasing state income. This research aims to microscopically isolate fungi from palm oil waste compost. This research method is used descriptively using quantitative methods. Research has been carried out by taking samples of palm waste fertilizer, isolation, purification and microscopic observations. The fungal isolation medium used was Potato Dextrose Agar (PDA). Based on the results of fungal isolation from empty oil palm bunches (TKKS), 1 fungal isolate was obtained which had a round shape, had septa and had hyphae whose cells were separated by partitions called septa and were branched. The conodiophores are white, appear straight and branched, characteristic of the purple hyphae with white spots and white spores. Key words: empty palm oil bunches; isolation; fungi
Kajian Beberapa Status Hara Pada Areal Replanting Tanaman Karet (Hevea brasiliensis) di Kebun Aek Nabara Utara Kecamatan Bilah Hulu Harahap, Fitra Syawal; Walida, Hilwa; Arman, Iman; Fitria, Fitria; Sidabukke, Simon Haholongan; Migusnawati, Migusnawati; Ananto, Ananto; Muzafri, Al
JURNAL AGROPLASMA Vol 11, No 2 (2024): JURNAL AGROPLASMA VOLUME 11 NO 2 TAHUN 2024
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v11i2.6264

Abstract

Rubber plants (Hevea brasiliensis) will experience a decrease in production as plants age and the nutrient content in the soil decreases. This study aims to find out the chemical properties of soil on plantations of rubber crops that are converted into palm and coconut crops. The research was conducted from Februari 2023 to Agustus 2024 at the palm coconut plantation of PTPN III Aek Nabara North Garden in Labuhanbatu district and analyzed in the Land Laboratory of the Faculty of Agriculture of the University of Northern Sumatra. The methods used are observation methods, field sampling, and analysis in the laboratory to obtain quantitative data. Observation parameters include soil pH, C-organic, Total Nitrogen, Available P, Cation Interchange Capacity, and Base Fulness. The results of the survey showed that the level of soil fertility at the site of the research was included in the low category. The main limiting factor that causes the low fertility of the soil is the low content of organic material in the soil. In order to improve the fertility status of the ground at the research site for further planting, it is necessary to make efforts such as irrigation and fertilization, as well as the addition of organic materials, to make the availability of nutrients for plants more affordable. Keywords: replanting area, rubber plants, conversion, soil fertility, quantitative data
The Effect of Gamma Ray Irradiation on the Growth of Bendy Variety-Green Okra (Abelmoschus esculentus L.) Ariyanti, Yuti; Sitanggang, Kamsia Dorliana; Sepriani, Yusmaidar; Harahap, Fitra Syawal
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i3.5724

Abstract

Widely cultivated, green okra (Abelmoschus esculentus L.) is a highly profitable horticultural crop. In contrast, okra production has not shown any significant improvement. This study observed the growth of green okra (A. esculentus L.) plants using gamma rays. In this investigation, the nonfactorial Randomised Block Design (RBD) method with three replications was implemented to investigate the effect of gamma radiation on green okra (A. esculentus L.) seeds. The study examined six levels of gamma radiation: 0 Gy (control), 100 Gy, 300 Gy, 500 Gy, 700 Gy, and 900 Gy. The findings indicated that plants demonstrated a survival rate at a dose of 0 Gy. At the same age, the irradiation dose of 700 Gy resulted in the highest number of leaves, whereas the control dose of 0 Gy resulted in the lowest number of leaves. The irradiation treatment dose of 500 Gy exhibited the least flowering time, while the control dose of 0 Gy exhibited the fastest flowering time. The slowest flowering time was observed at 900 Gy. This investigation determined that, compared to other radiation levels, gamma radiation at 2 WAP exhibited substantial radiation levels. This study demonstrates the critical role of gamma radiation at 2 WAP in okra production. The results of this study can be used as a prerequisite for ensuring the highest quality offspring from the effects of gamma radiation