Jhon Hardy Purba

• Lecturer at Universitas Panji Sakti

Unsur hara esensial adalah unsur hara yang sangat dibutuhkan oleh tanaman, dan fungsinya dalam tanaman tidak tergantikan oleh unsur lain, sehingga jika jumlahnya tidak cukup di dalam tanah, maka tanaman tidak bisa tumbuh dengan normal. Unsur-unsur hara esensial ini bisa bersumber dari udara, air atau tanah. Jumlah unsur hara esesial adalah 17. Berd...

Agroekologi merupakan pergeseran paradigma dalam praktik pertanian, yang menekankan integrasi prinsip-prinsip ekologi ke dalam sistem pertanian untuk mendorong keberlanjutan, ketahanan, dan konservasi keanekaragaman hayati. Tulisan ini mengeksplorasi konsep-konsep dasar dan aplikasi praktis agroekologi, yang menyoroti potensinya untuk mengatasi tan...

The development of village roads increases the accessibility of villages and community mobility. Increasing regional accessibility and community mobility will impact the welfare of village communities. However, the construction of village roads is still limited and uneven due to the limitations of the development budget and the lack of comprehensiv...

Tumbuhan dan segala bentuk organisme hidup tidak dapat hidup tanpa air, karena air adalah unsur terpenting dari sekitar 80-90% sel tumbuhan. Air sangat penting tidak hanya untuk memenuhi kebutuhan pertanian, tetapi juga untuk keperluan industri, pembangkit listrik, pemeliharaan ternak, kebutuhan pedesaan dan rumah tangga, dll. Namun sumber daya ini...

Government policies that carry out large-scale social restrictions during the Covid- 19 period have had an impact on reducing air traffic both for landings and takeoffs, which will have an impact on the life of runway services. Service life is the strength of road pavement in standing the repetition of permit loads before experiencing failure, by k...

Bali Province is one of the local mango producers, namely Wani fruit. Wani fruit (Mangifera caesia) is a local Balinese fruit that has the potential to be developed. Wani fruit production in Bali has decreased due to fewer trees in community gardens. This study aims to determine the suitability of land for wani fruit plants on the slopes of Mount B...

Produk guseta kelompok tani mutiara adalah produk unggulan di Jorong Talaweh Nagari Labuah Gunuang Kecamatan Lareh Sago Halaban Kabupaten Lima Puluh Kota. Produk guseta terdiri dari nira fresh, gula aren cetak bulat, gula aren cetak balok, gula aren cair, dan gula semut. Permasalahan yang dihadapi pelaku usaha khususnya Kelompok Tani Mutiara ad...

This study was proposed to analyze farmers’ varietal perception of bread wheat. From Meket district, four kebeles were randomly selected to achieve the above objective. The study uses cross-sectional data collected from randomly selected 214 farming households through an interview schedule. Fourteen Likert items were included in two categories as a...

In the current era of globalization, there are many similar products on the market and most of them have same prices and functions. Thus, the only factor that can be used as a differentiator from similar products is the quality of the products. This research was conducted at PT Candi Loka, which is engaged in agribusiness, namely tea processing. Th...

Sweet orange (Citrus sinensis L.) is an important fruit produced and consumed worldwide and it's an excellent source of vitamin C. However, citrus industry in Ethiopia is at an infant stage; which is particularly due to shortage of improved and adapted cultivars and their distribution. Considering these, six sweet orange cultivars were evaluated to...

The study was conducted in 2019/2020 for two years in Habru, Kobo, and Dawa Chefa districts of the Eastern Amhara with the main objectives of evaluating and validating the productivity, evaluating economic feasibility and selecting the best performing sowing method and seed rate of tef technologies under farmers condition. The districts were select...

Batur Forest is a volcanic area that was an ex-volcanic eruption. Efforts to rehabilitate forests with critical land were by planting Eucalyptus urophylla. The aim of the study was to examine the adaptation of Eucalyptus urophylla species in critical areas of former volcanic eruptions that were dominated by hard rocks. The research was done for a y...

In Ethiopia, a great variety of diseases affects faba bean production. However, gall forming faba bean new disease has become a very serious disease that seriously affected faba beans producing areas of Wollo. This prescalling up of integrated faba bean gall technology has been conducted at Meket and Wadla woredas of north Wollo in 2017/18 to creat...

Stripe (Yellow) rust caused by Puccinia striiformis f.sp. tritici (Pst) is a crucial wheat disease causing severe damage to cultivated susceptible wheat varieties. The wheat yellow rust assessment was conducted during the primary rainy season of 2018/19 at Ada'a, Lume, and Gimbichu using the zigzag disease assessment method. Disease data, agro-ecol...

Desa Baktiseraga yang merupakan daerah urban serta padat permukiman sehingga pemanfaatan lahan pekarangan untuk budidaya tanaman sangatlah terbatas. Tim Penggerak PKK Desa Baktiseraga dan KWT Lingga Setyawati berkeinginan untuk mengembangkan tanaman buah sebagai usaha untuk memenuhi kebutuhan buah keluarga serta untuk usaha sampingan. Sebagai solus...

Desa Baktiseraga yang merupakan daerah urban serta padat permukiman sehingga pemanfaatan lahan pekarangan untuk budidaya tanaman sangatlah terbatas. Tim Penggerak PKK Desa Baktiseraga dan KWT Lingga Setyawati berkeinginan untuk mengembangkan tanaman buah sebagai usaha untuk memenuhi kebutuhan buah keluarga serta untuk usaha sampingan. Sebagai solus...

Forests, traditional gardens and green spaces play an important role in regulating the water flow of an area. Along with the high demand for land in Bali for agriculture and tourism, many forest areas have been converted into hotels and settlements. Forest conversion has caused many problems such as erosion, soil fertility decreased, flora fauna ex...

Tanaman ingu (Boenninghausenia albiflora (Hook.) Rchb. ex Meisn) termasuk dalam keluarga jeruk-jerukan (Rutaceae), memiliki bau menyengat mengandung minyak atsiri. Tanaman ini memiliki potensi obat yang belum tergali secara optimal. Keberadaan ingu di habitat aslinya semakin berkurang karena dalam pertumbuhan bijinya mengalami kompetensi yang ketat...

Agroforestry is an activity that supports sustainable agriculture, contributes to increasing the benefits of agricultural productivity in the long term, improving the guality of the environment, and improving the guality of rural community life. Soil fauna abundance is one of the factor that increases soil fertility, its necessary to increase agrof...

Papaya propagation from seeds has a major problem, namely seeds germination take a relatively long time. Experiment to determine the effect of gibberellin and cow biourine concentrations on the growth of papaya seedlings were carried out at the Main Horticultural Seed Center of the Agriculture and Livestock Service Office of Buleleng Regency with a...

Agro Bali: Agricultural Journal, accredited SINTA-3, Indexed by DOAJ, Google Scholar, ICI Copernicus, etc. Publish articles in Indonesian or English. Focus and scope: agronomy, soil sciences, agricultural engineering and mechanization, plants breeding, plant biotechnology, food science and technology, land and water management, agroecology, plant p...

The purpose of this study was to determine the effect of media types, varieties and their combinations on the growth and yield of lettuce with hydroponic wick system cultivation. This research was carried out in the agronet house of the Agrotechnology Study Program, Faculty of Agriculture, Panji Sakti University, Singaraja with an altitude of 39 me...

Production of mungbean has been increasing in Ethiopia because of its high importance as a source of protein and foreign exchange earnings. Determination of appropriate plant density for the varieties of mungbean can increase its productivity. Therefore, an experiment was conducted to determine the effect of inter and intra row spacing on growth, y...

Rice straw is a resource that can be used as organic fertilizer. The fact in the field was still found that rice straw was wasted, one of which was burned. A study was conducted through a method of observation and survey involving rice paddy farmer groups in 3 sub-districts in the district of Klungkung, namely Banjarangkan, Klungkung and Dawan. The...

Desa Wanagiri adalah salah satu desa yang terdapat di kecamatan Sukasada, kabupaten Buleleng. Posisi yang berada di bagian hulu dari kabupaten Buleleng menempatkan desa Wanagiri sebagai kawasan perlidungan alam dan Kawasan suci di Bali. Sekitar 70,95% penduduknya bekerja di sektor pertanian, sekitar 4,23% bekerja di sektor pariwisata, dan selebihny...

Purba JH, Wahyuni PS, Zulkarnaen, Sasmita N, Yuniti IGD, Pandawani NP. 2020. Growth and yield response of shallot (Allium ascalonicum L. var. Tuktuk) from different source materials applied with liquid biofertilizers. Biodiversitas 21: 127-133. This research was to examine growth and yield of shallots using different sources of propagation material...

ABSTRAK Penelitian bertujuan untuk mengetahui potensi produksi jagung dan hijauan pakan ternak dari beberapa kultivar yang telah beredar dipasaran, dan beberapa galur yang masih dalam tahap uji adaptasi dari Balai Penelitian Serealia di Maros. Bahan benih jagung yang digunakan adalah benih jagung Sukmaraga, Maros Sintetik-2, Gumarang, TLWD QH Oil C...

Seedling performance is a prerequisite for successful palm oil cultivation. Determining the growth of seedlings in addition to genetic factors can also be influenced by the provision of nutrients at the beginning of growth. This research was conducted with the aim to get the best combination of cow manure with urea and NPK on the growth of oil palm...

Seedling performance is a prerequisite for successful palm oil cultivation. Determining the growth of seedlings in addition to genetic factors can also be influenced by the provision of nutrients at the beginning of growth. This research was conducted with the aim to get the best combination of cow manure with urea and NPK on the growth of oil palm...

WHO established Covid-19 as the Public Health Emergency of International Concern (PHEIC). On 12 February 2020, WHO declared a novel coronavirus in humans as Coronavirus Disease 2019 (COVID-19). The Covid-19 pandemic had a severe impact on Bali's economic and tourism sectors. The government said the Bali region was suffering from Covid-19 where all...

Telajakan and mixed gardens are land management systems in Bali. The existing plants are a combination of tree plants, shrubs, palms, bamboo and others by combining agricultural crops and or livestock. This practice is found in one land management unit to the landscape of rural agroecosystems. In the agroforestry system, this system is more of a fa...

Environment quality decrease is one of the impact of coal mining activities in East Kalimantan. The land becomes barren and critical, making it difficult for plants to grow and adapt, therefore post-mining area needs to be rehabilitated to restore the soil of the land as an important factor in crop cultivation. Before being planted with local trees...

Orchid is an ornamental plant that has a high aesthetic value because of its beautiful flowering with its attractive unique colours. The orchids taxonomy is included in the Ochidaceae family. Mostly found in tropical wet regions. In 1914 Schlecter estimated that there were 15.000 species. While Hawkes in 1965 estimated that in this world there were...

Orchid is an ornamental plant that has a high aesthetic value because of its beautiful flowering with its attractive unique colors. The orchids taxonomy is included in the Ochidaceae family. Mostly found in tropical wet regions. In 1914 Schlecter estimated that there were 15.000 species. While Hawkes in 1965 estimated that in this world there were...

This research aims to determine the effect of broiler manure doses and BiotamaxTM biofertilizers on growth and yield of Chinese cabbage in the Selat Village, Buleleng Regency, Bali from November - December 2018. The randomized block design (RBD) factorial, consisting of two factors was the experimental design used in this research. The first factor...

This research aims to determine the effect of broiler manure doses and BiotamaxTM biofertilizers on growth and yield of Chinese cabbage in the Selat Village, Buleleng Regency, Bali from November - December 2018. The randomized block design (RBD) factorial, consisting of two factors was the experimental design used in this research. The first factor...

Forests, traditional gardens and green spaces play an important role in regulating the water flow of an area. Along with the high demand for land in Bali for agriculture and tourism, many forest areas have been converted into hotels and settlements. Forest conversion has caused many problems such as erosion, soil fertility decreased, flora fauna ex...

Existing farmers used shallot bulbs as propagation material. This research tries to use true shallot seeds (TSS) as plant propagation material. If the growth and yield of shallots propagated by seeds are the same as bulbs, then bulbs that were previously used as propagation materials can be sold to increase income. Soil biological fertility, which...

Purba JH, Sasmita N, Komara LL, Nesimnasi N. 2019. Comparison of seed dormancy breaking of Eusideroxylon zwageri from Bali and Kalimantan soaked with sodium nitrophenolate growth regulator. Nusantara Bioscience 11: 146-152. Eusideroxylon zwageri is a very strong and durable wood, which can be used as building materials. This wood plant needs 6-12 m...

Telajakan and mixed gardens are land management systems in Bali. The existing plants are a combination of tree plants, shrubs, palms, bamboo-bamboo and others by combining agricultural crops and or livestock. This practice is found in one land management unit to the landscape of rural agroecosystems. In the agroforestry system, this system is more...

Species Test of Mulberry Plants on Agroforestry Land for Silk Yarn Quality Improvement in Bali Nanang Sasmita1, Jhon Hardy Purba2, Liris Lis Komara1 . IGA Diah Yuniti3 1East Kutai School of Agriculture 2Faculty of Agriculture, Panji Sakti University 3Faculty of Agriculture, Mahasaraswati University E-mail: sasmita_na@yahoo.com Abstract Mulberry...

Coal mining activities change the environment physically, chemically and biologically that affect post-mining vegetation. Reclamation and revegetation of post-coal mining land to restore the potential Kalimantan land as important production factor for crop cultivation. The pioneer plant function was to helps micro and macro ecosystems of post-coal...

Sasmita N, Purba JH, Yuniti IGAD. 2019. Adaptation of Morus alba and Morus cathayana plants in a different climate and environment conditions in Indonesia. Biodiversitas 20: 544-554. Mulberry (Morus alba L. and Morus cathayana Hemsl.) cultivation business as silkworm feed in Indonesia is increasing, considering the benefits of mulberry economically...

Adaptation of Morus alba and Morus cathayana plants in a different climate and environment conditions in Indonesia Abstract Mulberry (Morus alba L. and Morus cathayana Hemsl.) cultivation business as silkworm feed in Indonesia is increasing. Considering the benefits of mulberry economically, ecologically and pharmaceutically.This study objective...

Genetically Modified Organism (GMO) or genetically modified organism is a term whose meaning is the same as GMO, which means an organism that has some genetic material (DNA) originating from another organism. GMO plants are plants that have genes inserted by genes from other organisms. The insertion of this gene is usually directed towards food pla...

The Annual Planting Plan contains a pattern and schedule of planting in one year for each type of plant with each planting area. The Planting Plan is important to maximize the use of irrigation water in an irrigation area (DI), and prevent competition between water users at both the irrigation area and river level. RTTs are prepared by the relevant...

Water requirement for lowland rice crops include calculation of water flowing in and out of the wetland. The water in paddy field could be increased due to rain, deliberately irrigated from canal irrigation, and seepage from the higher level of rice fields. The water in the field will be reduced due to the transpiration, evaporation, infiltration,...