Garuda - Garba Rujukan Digital

Evaluasi Aplikasi Fungi Mikoriza Arbuskula (FMA) dan Respon Pertumbuhannya Terhadap Jati (Tectona grandis Linn. F.) di Persemaian Jenny Rumondang; Yadi Setiadi
Jurnal Silvikultur Tropika Vol. 2 No. 3 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.3.%p

Evaluation of Arbuscula Mycorrizhae Fungi (AMF) Application to Teak (Tectona grandis Linn. F.) Seedling and Its Growth Responses in NurseryTeak (Tectona grandis Linn. F.) was one of Verbenaceae family that categorized into luxurious goods commodity. One of difficulties in meeting of teak woods demands was the growth of teak in the nursery that takes long enough time, thus need efforts to accelerate the growth and improve the quality of teak in the nursery. Arbuskula Mycorrizhae Fungi (AMF) was one of endomycorrizhae that could associate with teak. Mycorrizhae could provide phospor that has important role for (Adenosin Triphospate) ATP creation in the plant. The objective of this research was to collect and provide information from many performed research for evaluating and analyzing the effect of endomycorrizhae inoculation to teak seedling growth. Result of this evaluation about application AMF of teak seddling that G. aggregatum dan G.manihotis-3 could improve the growth of teak seddling. G. manihotis-3 was effective AMF that improve the growth of teak seedling. The addition of M-Dext on 10 cc/l and 30 cc/l doses, and 3 gr of NPK could support the improvement of teak seedling growth that inoculated with AMF. Used utilization of growing media from sterilized mixture of sand and soil could support the growth of teak seedling that inoculated with AMF in nursery. Inoculation technique with hole-system or layering system could used to application teak seedling with AMF in nursery.

Adaptability Trial of Paspalum conjugatum Berg, Setaria splendida Stapf and Vetiveria zizanoides (L.) Nash on Aluminum Toxicity UJI ADAPTABILITAS Paspalum conjugatum Berg, Setaria splendida Stapf, DAN Vetiveria zizanoides (L.) Nash PADA TOKSISITAS .... Jenny Rumondang; Yadi Setiadi; Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.3.211-216

Quartz sand mining operated by PT Holcim creates the soil minerals such as aluminum (Al). Setiadi (2012) explained that Al > 3 me/100 g soil is a toxic. Problem safter mining operational PT Holcim Tbk are: 1) Al toxicity. 2) soil compaction; 3) Ca < Mg which lead to stagnant growth. The presence of Al affected root growth, signed by swelling and browning root. Reducing Al concentration needs expensive cost. Thus, other biological alternatives which more effective and cost less are needed.This research objective was to observe plant growth at media which consist of Al toxicity. Using of Paspalum conjugatum, Setaria splendida, and Vetiveria zizanoides where use as plant indicator. The treatment were concentration of micro lime and humic substances complex. The experiment conducted at factorial design.. The resulted shows performances of three grass species planted in tailing soil gave varied result. P. conjugatum was more sensitive to Al than two others, where as S. splendida and V. zizanoides were more adaptive to Al. S. splendida can reduced Al until 61.23% and combination V. zizanoides with lolime 3g/L + HSC 2.5% can reduced Al 60.03%. V. zizanoidesis and S. splendida were potential for phytoremediation (plant which can reduce toxicity in soil).Key words: Alumunium, P. conjugatum, S. splendida, V. zizanoides

KEANEKARAGAMAN FLORA DI AREA PASCA TAMBANG BERAU, KALIMANTAN TIMUR, INDONESIA Ida Rosita; Sri Wilarso Budi; Imam Gozali; Jenny Rumondang; Saridi
JURNAL AGRIMENT Vol 8 No 1 (2023): Juni 2023
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v8i1.2480

Coal mining activities in Indonesia have a negative impact on the environment. Some vegetations are disturbed even be lost especially in mining with open mine operation. Revegetation is one of activities that can improve the quality of post mining land, which are also included in post mining land reclamation activities. The purpose of this study is to analyze the biodiversity of flora in post-coal mining revegetation area and to compare the condition of vegetation in various revegetation age classes with the condition of vegetation in natural forest. Vegetation data were collected using the plotted line method in natural forest and plot method with the systematic sampling method with random start (revegetation area). The analysis found that overall conditions of revegetation area have more diverse number of species, namely 52 species woody plant species, and 23 herbaceous plant species, compared to the natural forest, which only has 46 woody plant species and 2 herbaceous plant species. Generally, diversity index and species increment in vegetation area at age more than 4 years is higher and approaching the state of natural forest than revegetation area age 0 - 2 years.

Studi Karakteristik Kimia Tanah Pada Berbagai Kelerengan di Lahan Agroforestri Berbasis Gaharu (Aquilaria malaccensis) : Study of Soil Chemical Characteristics at Various Slopes in Agarwood-Based Agroforestry Land (Aquilaria malaccensis) Hamzah, Hamzah; Rumondang, Jenny; Dinanty, Fawwaz; Safira, Doani Anggi; Puri, Suci Ratna; Farikhah, Anisatul; Nisya, Dian; Siregar, Helmalia Vareira
Jurnal Silva Tropika Vol. 8 No. 2 (2024): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v8i2.38373

ABSTRACT The research was conducted on agarwood agroforestry land (Aquilaria malaccensis) in Muaro Pijoan Village, Muaro Jambi Regency, which has an ultisol soil type with a land slope of 3,33% and 7,27%. Agarwood was planted at a distance of 2 x 3 meters on an area of 2 hectares since 2007. Analysis was conducted on various soil chemical properties such as pH, C-Organic, N, P, and K and Cation Exchange Capacity (CEC) in three locations with different slopes. Results showed that soil pH at the study sites ranged from 4-4,05, indicating very high acidity, while C-Organic and CEC contents were low. Nitrogen and phosphorus contents also varied based on slope, potentially affecting agarwood growth. The highest increments in diameter (0,945 cm/year) and height (0,552 m/year) were observed on land with a 7,27% slope. These findings indicate the importance of soil chemistry and slope in supporting agarwood productivity in ultisol agroforestry. Keywords: agarwood, nutrient elements, organic carbon, pH ABSTRAK. Penelitian dilakukan pada lahan agroforestry berbasis gaharu (Aquilaria malaccensis) di Desa Muaro Pijoan, Kabupaten Muaro Jambi, yang memiliki jenis tanah ultisol dengan kemiringan lahan 3,33% dan 7,27%. Gaharu ditanam pada jarak 2 x 3 meter di lahan seluas 2 hektar sejak tahun 2007. Analisis dilakukan terhadap berbagai sifat kimia tanah seperti pH, C-Organik, N, P, dan K serta Kapasitas Tukar Kation KTK) di tiga lokasi dengan kemiringan berbeda. Hasil penelitian menunjukkan bahwa pH tanah di lokasi penelitian berkisar pada 4-4,05, menunjukkan tingkat keasaman yang sangat tinggi, sementara kandungan C-Organik dan KTK tergolong rendah. Kandungan nitrogen dan fosfor juga bervariasi berdasarkan kemiringan lahan, yang berpotensi mempengaruhi pertumbuhan gaharu. Riap diameter dan tinggi tanaman gaharu tertinggi ditemukan pada lahan dengan kemiringan 7,27%, dengan riap diameter tahunan rata-rata sebesar 0,945 cm/tanaman/tahun dan riap tinggi sebesar 0,552 m/tanaman/tahun. Temuan ini menunjukkan pentingnya sifat kimia tanah dan kemiringan lahan dalam mendukung produktivitas tanaman gaharu di agroforestri ultisol. Kata kunci: gaharu, unsur hara, karbon organic, pH

Respon Pertumbuhan Semai Tanjung (Mimusops elengi Linn) Terhadap Pemberian Pupuk Kandang Ayam: Response of Seedling Growth of Tanjung (Mimusops elengi Linn.) to Doses of Chicken Manure Fertilizer Puri, Suci Ratna; Hamzah, Hamzah; Handayani, Rajjitha; Rif'atunidaudina, Ria; Rumondang, Jenny; Armada, Galang
Jurnal Silva Tropika Vol. 8 No. 2 (2024): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v8i2.38480

ABSTRACT The sufficiency of nutrients in the soil greatly affected the growth and development of plants. The type of plant largely determines its nutritional requirement. Tanjung (Mimusops elengi Linn.) is one of type the forestry plant that has the ability of adapt to air pollution, so that it making it potential to be developed as a protective tree in urban forest development programs. The objective of this research was to determine how the Tanjung seedling growth responds to the dose of chicken manure in the nursery of the Agriculture Faculty, Jambi University. The study used a completely randomized design with a dose of chicken manure as the treatment. The treatments consisted of 5 levels, namely without chicken manure, 500 g/polybag, 750 g/polybag, 1000 g/polybag, and 1250 g/polybag. The research results showed that the dose of chicken manure affected on growth of Tanjung seedlings. The application of 1250 g of chicken manure per polybag had best effect on diameter, number of leaves, shoot dry weight, total dry weight, and root shoot ratio. Keywords: chicken manure, doses, growth, seedling of Mimusops elengi, ultisol soil ABSTRAK Kecukupan unsur hara dalam tanah sangat mempengaruhi pertumbuhan dan perkembangan suatu tanaman. Kebutuhan akan nutrisi sangat ditentukan oleh jenis tanaman itu sendiri. Tanjung (Mimusops elengi Linn.) merupakan salah satu tanaman kehutanan yang yang memiliki kemampuan adaptasi terhadap polusi udara sehingga berpotensi untuk dikembangkan sebagai pohon pelindung pada program pengembangan hutan kota. Tujuan penelitian ini adalah untuk menentukan dosis pupuk kandang yang optimal untuk pertumbuhan bibit tanjung. Penelitian ini menggunakan rancangan acak lengkap dengan dosis pupuk kandang ayam sebagai perlakuan yang terdiri atas 5 taraf yaitu tanpa pemberian, 500 g/polibag, 750 g/polybag, 1000 g/polybag, and 1250 g/polybag. Hasil penelitian menunjukkan dosis pemberian pupuk kandang ayam berpengaruh terhadap pertumbuhan bibit tanjung. Perlakuan pupuk kandang dengan dosis 1250 g/polybag memberikan respon pertumbuhan terbaik terhadap diameter, jumlah daun, berat berat kering tajuk, berat kering total dan nisbah tajuk akar pada bibit tanjung. Kata kunci: dosis, pertumbuhan, pupuk kandang ayam, semai tanjung, tanah ultisol

Keanekaragaman Serangga Yang Berpotensi Hama Di Hutan Pendidikan Universitas Jambi: Diverstity Of Potential Pest Insect In Jambi University Education Forest Rumondang, Jenny; Asniwita, Asniwita; Saputra RB, Wahyu; Lestari, Eni
Jurnal Silva Tropika Vol. 7 No. 2 (2023): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v7i2.34671

ABSTRACT This research is to identify the types of insect pests with four trapping methods, there are Sweep Net Trap, Pit Fall Trap, Yellow Paper Trap, and Light Trap. This research aims to identify the types of insect pests that can be used as recommendations in pest control. This research was conducted in the educational forest of Jambi University, Mendalo campus, from July to October 2023. The methods used for insect identification were swept net trap, pitfall trap, yellow paper trap, and light trap. The sweep net trap method found 25.31% of wood locusts (Valanga nigricornis), 56.52% of pharaoh ants (Monomorium pharaonis) were found in the pitfall trap method, the yellow paper trap method found 97.58% of fruit flies (Bactrocera spp), and the light trap method found 92.58% of subterranean termite (Macrotermes gilvus). The method used for forest disease identification is by looking at the forest disease book for the identification process. The identification results stated that 13.46% found sooty dew disease, and 11.54% found stem cancer and wilt disease. For this exploration ventures into the different orders of these forest pest insect, revealing the beauty in ther diversity. Like the various species of trees in a forest, eac\h order contributes its unique essence to the overall harmony of the ecosystem. From defoliation to shift in biodiversity, the impact of forest pest insects touches both the heart of nature and the economics that rely on this forest. Keywords: Education Forest of Jambi University, Insect, Trapping methods ABSTRAK Penelitian ini mengidentifikasi jenis-jenis serangga hama dengan empat metode perangkap, yaitu Sweep Net Trap, Pit Fall Trap, Yellow Paper Trap, dan Light Trap. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis serangga hama yang dapat digunakan sebagai rekomendasi dalam pengendalian hama. Penelitian ini dilaksanakan di hutan pendidikan Universitas Jambi, kampus Mendalo, pada bulan Juli hingga Oktober 2023. Metode yang digunakan untuk identifikasi serangga adalah swept net trap, pitfall trap, yellow paper trap, dan light trap. Metode sweep net trap menemukan 25,31% belalang kayu (Valanga nigricornis), 56,52% semut firaun (Monomorium pharaonis) ditemukan pada metode pitfall trap, metode yellow paper trap menemukan 97,58% lalat buah (Bactrocera spp), dan metode light trap menemukan 92,58% rayap tanah (Macrotermes gilvus). Metode yang digunakan untuk identifikasi penyakit hutan adalah dengan melihat buku penyakit hutan untuk proses identifikasi. Hasil identifikasi menyatakan bahwa 13,46% ditemukan penyakit embun jelaga, dan 11,54% ditemukan penyakit kanker batang dan layu. Eksplorasi ini menjelajahi berbagai ordo serangga hama hutan ini, mengungkapkan keindahan dalam keanekaragaman. Seperti halnya berbagai spesies pohon di hutan, setiap ordo menyumbangkan esensi uniknya bagi keselarasan ekosistem secara keseluruhan. Dari defoliasi hingga pergeseran keanekaragaman hayati, dampak serangga hama hutan menyentuh jantung alam dan ekonomi yang bergantung pada hutan. Katakunci: Hutan Pendidikan Universitas Jambi, Metode Perangkap, Serangga

Pengaruh Penambahan Berbagai Bahan Organik pada Media Tanam Sub Soil Terhadap Pertumbuhan Bibit Petai (Parkia speciosa): Effect of Adding Various Organic Ingredients to The Media Planting Sub Soil for Growth Petai Seeds (Parkia speciosa Hamzah, Hamzah; Hardiyanti, Rizky Ayu; Handayani, Rajjitha; Rumondang, Jenny; Utari, Indah Tri
Jurnal Silva Tropika Vol. 8 No. 1 (2024): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v8i1.35826

ABSTRACT Petai is a plant that belongs to the MPTS (Multi Purpose Tree Species) plant type which can be used multiple times for both wood and non-wood. Petai also has benefits from an economic perspective (fruit and wood) and ecology (legume plants fertilize the soil) so it needs to be cultivated well. There are several factors that influence the quality of cultivation results, one of which is the planting media. The planting medium used is soil in the sub-soil layer as an alternative to top soil. However, this layer is not as fertile as the top soil layer, so it is necessary to add soil improving materials (Ameliorants), for example organic materials. This research aims to analyze the effect of adding various organic materials to sub-soil planting media on the growth of Petai seedlings and to obtain the best organic material composition to add to sub-soil planting media which can have a real influence on the growth of Petai seedlings. This research was carried out for 3 months using a completely randomized design (CRD) method with 1 factor, namely planting media (M) consisting of 5 treatments, namely m1 (Sub soil + compost 3:1), m2 (Sub soil + husk charcoal 2:1), m3 (Sub soil + Cocopeat 2:1), m4 (Sub soil + Boiler ash 4:1) and m5 (Sub soil + Laying chicken manure + Sand 1:2:1). The best organic material composition to add to the sub soil planting medium is cocopeat (2:1). Keywords: petai, planting media, organic materials. ABSTRAK Petai merupakan tumbuhan yang tergolong dalam jenis tanaman MPTS (Multi Purpose Tree Species) yang dapat dimanfaatkan secara ganda baik kayu maupun non kayunya. Petai juga memiliki manfaat dari segi ekonomi (buah dan kayunya) maupun ekologi (tumbuhan legum menyuburkan tanah) sehingga perlu dibudidayakan dengan baik. Ada beberapa faktor yang mempengaruhi kualitas hasil budidaya salah satunya media tanam. Media tanam yang digunakan adalah tanah pada lapisan sub soil sebagai alternatif pengganti tanah top soil. Namun, lapisan ini tidak sesubur lapisan top soil sehingga diperlukan penambahan bahan pembenah tanah (Amelioran) contohnya bahan organik. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan berbagai bahan organik pada media tanam sub soil terhadap pertumbuhan bibit petai serta untuk mendapatkan komposisi bahan organik terbaik untuk ditambahkan ke media tanam sub soil yang dapat memberikan pegaruh nyata dalam pertumbuhan bibit Petai. Penelitian ini dilaksanakan selama 3 bulan dengan menggunakan metode rancangan acak lengkap (RAL) 1 faktor yaitu media tanam (M) yang terdiri dari 5 perlakuan yaitu m1 (Sub soil + kompos 3:1), m2 (Sub soil + arang sekam 2:1), m3 (Sub soil + Cocopeat 2:1 ), m4 (Sub soil + Abu boiler 4:1 ) dan m5 (Sub soil + Pupuk kandang ayam petelur + Pasir 1:2:1). Komposisi bahan organik terbaik untuk ditambahkan ke dalam media tanam sub soil adalah cocopeat (2:1). Katakunci: petai, media tanam, bahan organik.

Perbandingan Laju Fotosintesis pada Tanaman Tanjung (Mimusops elengi Linn.) dan Tanaman Merbau Darat (Intsia palembanica) pada Berbagai Media Tanam: Comparison of Photosynthesis Rates in Tanjung (Mimusops elengi Linn.) and Merbau Darat (Intsia palembanica) on Various Gowing Media Hardiyanti, Rizky Ayu; Puri, Suci Ratna; Handayani, Rajjitha; Rif’atunidaudina, Ria; Rumondang, Jenny; Yandi, Wahyu Nazri; Muryunika, Rince
Jurnal Silva Tropika Vol. 9 No. 1 (2025): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v9i1.44376

ABSTRACT Sunlight plays a crucial role in the process of photosynthesis because it provides the energy source that plants need. The intensity of light received by plants greatly affects their growth and the efficiency of photosynthesis. The rate of photosynthesis in plants is also greatly influenced by the intensity of sunlight, where if there is sufficient light intensity, adequate amounts of water and carbon dioxide, and appropriate temperatures, photosynthesis will usually reach its peak. The purpose of this research is to observe the rate of photosynthesis in Tanjung (Mimusops elengi Linn.) and Merbau darat (Intsia palembanica) plants with various treatments such as the addition of topsoil, subsoil, rice husk charcoal, cocopeat, sand, cow dung fertilizer, and NPK fertilizer using a plant photosynthesis meter. The research was conducted at the Educational Forest and Nursery Laboratory of the Forestry Department, Faculty of Agiculture, Jambi University. The results of this study indicate that Tanjung with the treatment of topsoil, rice husk charcoal, and 5 g of NPK is the best fertilizer application, as evidenced by the highest photosynthesis rate of 31.7 µmolCO2 m-2s-1. Meanwhile, for the merbau darat seedlings, the treatment with topsoil, sand, and 2 g of NPK fertilizer yielded the highest results for the photosynthesis rate. Keywords: photosynthesis rate, NPK fertilizer, merbau darat, tanjung, subsoil ABSTRACT Cahaya matahari sangat berperan dalam proses fotosintesis karena dapat memberikan sumber energi yang sangat dibutuhkan oleh tanaman. Intensitas cahaya yang diterima tanaman sangat mempengaruhi pertumbuhan dan efisiensi fotosintesis. Laju fotosintesis pada tanaman juga sangat di pengaruhi oleh intensitas cahaya matahari, dimana jika intensitas cahaya yang cukup, jumlah air dan karbon dioksida yang cukup serta suhu yang sesuai, fotosintesis biasanya akan mencapai puncaknya. Tujuan dari penelitian ini adalah untuk melihat seberapa tinggi laju fotosintesis pada tanaman Tanjung (Mimusops elengi Linn.) dan Merbau darat (Intsia palembanica) dengan berbagai perlakuan seperti penambahan media topsoil, subsoil, arang sekam, cocopeat, pasir, pupuk kotoran sapi dan pupuk NPK dengan alat plant photosyntesis meter. Penelitian dilakukan di Laboratorium Hutan Pendidikan dan Pembibitan Jurusan Kehutanan, Fakultas Pertanian Universitas Jambi. Hasil penelitian ini menunjukan bahwa tanaman Tanjung dengan pemberian perlakuan topsoil, arang sekam dan NPK 5 g merupakan pemberian pupuk terbaik dengan hasil laju fotosintesis tertinggi yaitu 31,7 µmolCO2m-2s-1. Sedangkan pada bibit merbau darat dengan pemberian perlakuan topsoil, pasir dan pupuk NPK 2 g mendapatlan hasil tertinggi untuk laju fotosintesisnya. Kata kunci: laju fotosintesis, merbau darat, pupuk NPK, tanjung, subsoil

Pengaruh Pemberian Pupuk NPK Terhadap Pertumbuhan Bibit Kaliandra Merah (Calliandra Calothyrsus Meissn) Pada Media Ultisol: The Effect of NPK Fertilizer Application on The Growth of Red Calliandra Seedlings (Calliandra calothyrsus Meissn) on Ultisol Media Puri, Suci Ratna; Hamzah, Hamzah; Handayani, Rajjitha; Rumondang, Jenny; Desthaniah, Mayhesti
Jurnal Silva Tropika Vol. 9 No. 1 (2025): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v9i1.44417

ABSTRACT Red caliandra (Calliandra calothyrsus Meissn) is a plant that belongs to the Fabaceae family. Callindra has a rapid growth rate, reaching a height of 3-5 meters in the first year on suitable land. The planting medium commonly used for seedlings includes ultisol soil, which generally has sensitive aeration pores and low stability index, causing the soil to easily become compacted. The growth of quality calliandra seedlings in the nursery is influenced by soil fertility; therefore, additional treatment in the form of fertilizer is necessary to ensure sufficient nutrient content. One of the fertilizers that can be used is the NPK compound fertilizer. This fertilizer is one of the inorganic fertilizers that is very efficient in increasing the availability of macro nutrients N, P, and K. This research was conducted in the Forest Cultivation Laboratory of the Faculty of Agriculture, Jambi University, using the Completely Randomized Design (CRD) method with one factor, namely the NPK fertilizer 15:15:15. The treatments given were: P0 (without treatment), P1 (NPK 1 grams), P2 (NPK 2 grams), P3 (NPK 3 grams), P4 (NPK 4 grams), and P5 (NPK 5 grams). Observation parameters include height increase, diameter, leaf count, root dry weight, and shoot dry weight. Based on the research results, it can be concluded that the application of NPK fertilizer has no significant effect on the growth of calliandra seedlings in ultisol media, as observed in all parameters. The application of NPK at certain doses does not yield optimal results in the growth of callindra seedlings. Keywords: NPK, red calliandra, ultisol ABSTRAK Kaliandra merah (Calliandra calothyrsus Meissn) merupakan tanaman yang termasuk ke dalam famili fabaceae. Kaliandra merah memiliki pertumbuhan yang cepat, ditahun pertama tingginya dapat mencapai 3-5m pada lahan yang memadai. Media tanam bibit yang banyak digunakan diantaranya adalah tanah ultisol yang umumnya peka memiliki pori aerasi dan indeks stabilitas rendah sehingga menyebabkan tanah mudah menjadi padat. Pertumbuhan bibit kaliandra yang berkualitas di persemaian dipengaruhi oleh kesuburan tanah, dengan demikian perlu perlakuan tambahan berupa pupuk agar unsur hara mencukupi. Salah satu pupuk yang dapat digunakan adalah pupuk majemuk NPK. Pupuk ini merupakan salah satu pupuk anorganik yang sangat efisien dalam meningkatkan ketersediaan unsur hara makro N, P, dan K. Penelitian ini dilaksanakan di Laboratorium Budidaya Hutan Fakultas Pertanian Universitas Jambi dengan menggunakan metode Rancangan Acak Lengkap (RAL) 1 faktor yaitu pupuk NPK 15:15:15. Perlakuan yang diberikan yaitu: P0 (tanpa perlakuan), P1 (NPK 1 gram), P2 (NPK 2 gram), P3 (NPK 3 gram), P4 (NPK 4 gram), dan P5 (NPK 5 gram). Parameter pengamatan berupa pertambahan tinggi, diameter, jumlah daun, berat kering akar, dan berat kering tajuk. Berdasarkan hasil penelitan, dapat disimpulkan bahwa pemberian pupuk NPK berpengaruh tidak nyata terhadap pertumbuhan bibit kaliandra merah pada media ultisol yang terlihat pada semua parameter. Pemberian NPK dengan dosis tertentu tidak memberikan hasil optimal pada pertumbuhan bibit kaliandra merah. Kata kunci: NPK, kaliandra merah, ultisol

OPTIMIZING EUCALYPTUS PELLITA SEEDLING GROWTH THROUGH NPK FERTILIZER AND LIGHT INTENSITY REGULATION Ratna Puri, Suci; Mahub, Itang Ahmad; Rumondang, Jenny; Handayani, Rajjitha; Hardiyanti, Rizky Ayu; Aulia, Ahmad Khoiril
Jurnal Belantara Vol 8 No 2 (2025)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbl.v8i2.1121

Eucalyptus pellita is a type of fast-growing plant (fast-growing species). The advantage of this plant is that it is a short rotation or fast-growing plant, with fewer disease attacks. The benefits of the plant are quite numerous and it has high economic value. Considering that the optimal light intensity for eucalyptus seedling growth is not yet known, it is necessary to test the effects of various light intensities using shade in the form of paranet. This research was conducted using a factorial Completely Randomized Design (CRD) with a split-plot experimental pattern consisting of 4 treatment levels. Each treatment was repeated 3 times, The results of the study on the effect of NPK fertilizer and light intensity on the growth of eucalyptus seedlings indicate that the interaction of 5g NPK fertilizer per seedling and 100% light intensity is a better treatment compared to other treatments. This is suspected because eucalyptus is a plant that requires sufficient light intensity to experience the growth of eucalyptus seedlings. The growth of eucalyptus seedlings is influenced by light intensity, which supports the increase in height, stem diameter, and number of leaves. Based on the results of this study, it can be concluded that the treatment with NPK fertilizer and light intensity has a significant effect on increasing stem diameter. In the treatment P2C0, which is NPK fertilizer 7g/seedling and light intensity 100%, there is no significant difference compared to treatments P1C0 and P3C0, which are NPK fertilizers 5g and 9g/seedling at 100% light intensity.

Title

Found 10 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search