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Biochar Bambu Perbaiki Kualitas Tanah dan Hasil Jagung
Get PDFPuji syukur penulis sampaikan kepada Tuhan Yang Maha Esa karena hanya atas berkat dan karunia-Nya, buku dengan judul “Biochar Bambu Perbaiki Kualitas Tanah dan Hasil Jagung” dapat penulis selesaikan dengan baik. Buku ini dapat dipakai sebagai bahan referensi bagi mahasiswa, pelajar, praktisi, stakeholder, dan masyarakat.
Biochar dikenal dengan berbagai sebutan seperti arang hayati, si mutiara hitam, sang pembenah tanah, soil amandement, bioremediator, soil conditioner, dan si penyelamat lingkungan. Biochar adalah arang hitam berpori hasil dari proses pemanasan biomassa pada keadaan oksigen terbatas atau tanpa oksigen. Biochar berpotensi meningkatkan kadar karbon tanah, retensi air dan hara di dalam tanah, memperbaiki kesuburan tanah dan memulihkan kualitas tanah di lahan kering.
Pertanian lahan kering dicirikan dengan tingkat kesuburan rendah, ketersediaan air dan hara yang rendah, kelerengan yang curam, mudah tererosi, dan solum yang dangkal. Perbaikan kualitas tanah di lahan kering dapat dilakukan dengan menggunakan pembenah tanah biochar. Biochar yang diperkaya dengan pupuk organik kompos dan pupuk anorganik phonska dapat memenuhi unsur hara yang cukup dan seimbang serta meningkatkan hasil tanaman jagung di lahan kering. Dalam buku ini penulis mengupas tentang : (1) potensi dan karakteristik biochar bambu dan kompos dalam memperbaiki kualitas tanah di lahan kering, (2) dosis optimum biochar bambu, kompos, dan phonska yang memberikan hasil tanaman jagung tertinggi, dan (3) formulasi biochar bambu dengan kompos dan phonska dalam memperbaiki kualitas tanah dan hasil tanaman jagung.
Pengunaan biochar dari limbah bambu maupun biomasa pertanian lainnya ternyata dapat memberi manfaat untuk perbaikan kualitas lahan-lahan pertanian khususnya lahan kering. Oleh karena itu, peran pemerintah dan stakeholder pertanian sangat diperlukan untuk pengembangan teknologi pembuatan biochar yang efektif dan efisien di masa yang akan datang sehingga layak untuk diaplikasikan di lahan-lahan pertanian yang miskin unsur hara
Physicochemical Characteristics of Fresh-cut Tropical Fruit during Storage
Get PDFFresh-cut tropical fruit is increasingly popular currently, stimulated by public awareness of health and practical lifestylefresh-cut fruit presenting consumers' convenience, safety, and quality. Tropical fruit contains functional components that are quite varied and good for health. Mangosteen, Mango, and Rambutan are three exotic tropical fruits that have high economic value and are liked by foreign people. They have a nonedible relatively high and potentially processed into fresh-cut fruit—the process of stripping cutting and slicer, causing wounds that spur damage. During storage, fresh-cut fruits undergo physical-chemical changes—increased respiration rate, ethylene production, oxidation, and browning processes that can shorten shelf life. The damage will be faster if stored at an improper temperature. Fresh-cut fruit is preferably stored at cold temperatures, to extend the shelf life. The research aims to determine the physicochemical characteristics of fresh-cut tropical fruits during cold storage. The research uses a pattern of random group three replicate. The first factor is fruit type (Mango, Mangosteen, Rambutan); the second factor is storage time in cold temperatures (0, 5, 10 days). The variables observed in the study included physical characteristics color (L*a*b*), weight, and texture. Observations of chemical characteristics include moisture content, pH, total acids, vitamin C levels, and total dissolved solids. Freshcut tropical fruit has different physicochemical characteristics and experiences deterioration during cold temperatures. The characteristics of tropical fruit have changed significantly on day 5. Mango shows more significant changes than others, seen from variable moisture content, vitamin C, color, and texture. Meanwhile, based on the physicochemical analysis, rigidity of fresh-cut Mango higher than Mangosteen and Rambutan
Ecogel incorporated with nano-additives to increase shelf-life of fresh-cut mango
Get PDFFresh-cut mango is a very popular product commonly consumed due to its health and safety benefits to the community. The rise in cutting results, which increases respiration, ethylene production, oxidation, and browning processes, tends to shorten its life. Edible coating of aloe gel (Ecogel) serves as an additive matrix to extend the life of fresh-cut mango with the incorporation of antioxidant, acidulant, and antimicrobial additives. The edible coating ability is strongly influenced by molecular structure, size, and chemical constituents, with the nanoparticle used to determine the edible coating capability. This study, therefore, aims to determine the influence of incorporation nano-additive material and its concentration to extend the shelf life of the mango. The complete random design was used to determine the factorial pattern of citric, ascorbic, and potassium sorbate acid using a concentration of 0.15, 0.3, and 0.45 %. The mixture of nano-additives consists of citric acid, ascorbic acid, and potassium sorbate at a concentration of 0.15 %, which is the best formulation for Ecogel. The characteristics of fresh-cut fruit coated with Ecogel are suitable at a temperature of 7 ± 1 C until day 6. Therefore, Ecogel prolongs the shelf-life of fresh-cut mango
Effect Local Direction on Balinese Traditional Settlement Layout, Case Study: Pengotan Traditional Village in Bali, Indonesia
Get PDFThe pattern of Pengotan Village is extended from the kaja (sacred) to the kelod (profane), which consists of three zones, namely the Utama (zone of sacred) as the space intended for shrines (temple), Madya (transition/between space) as the space for residential housing units, and the Nista zone (zone of profane) intended for the graveyard (setra). This pattern is repeated in clusters of residential housing units. This study aims to spatial analysis of luan (sacred) and teben (profane) orientations in Indigenous Village Pengotan through an approach: (1) history of the Traditional Village Pengotan, (2) conception of the mountain as a sacred direction, (3) conception luan (holy) and teben (profane) on settlements in the mountainous area, (4) general concepts of religious and secular space and (5) conception of signifier and signified spaces in architecture. The method used is naturalistic interpretive in studying the area in a conceptual (intangible) and concreate (tangible) context through empirical studies on sensual (observation), native's viewpoint, logic viewpoint (researcher's perspective), and intangible aspects. The results of this study are (1) spatial patterns based on luan (sacred) and teben (profane) conception; (2) the signifier and signified system in the space of on luan (holy) and teben (profane) orientation and (3) the relationship between Mount Batur and Mount Abang as luan (sacred) orientation in the Pengotan Village
The Local Wisdom Study of Luan And Teben Concept on Balinese Ethnic Houses (Case Study: Balinese Ethnic Houses in Denpasar, Bali)
Get PDFSanga Mandala is a concept that divide the layout of lowland Balinese house into nine zones. The intersection of two main axes, the ritual axis and the natural axis, forms the concept of Sanga Mandala. These axes have two poles called hulu/luan (mountain direction) and teben (sea direction). Along with times, the realization of Sanga Mandala in
the form of buildings and zoning underwent a transformation in response to the increase in household members, modern mindset of the citizen, and tendency to follow contemporary trends. Changes to the zoning system that still follow the rules of traditional Balinese architecture are zones of sacred and ritual functions. With the development of modern mindset of the citizen, we can find those phenomena in Denpasar. This study aimed at examining the meaning of luan and teben on Balinese ethnic house layout in Denpasar. There is an interesting phenomenon that relates to the meaning of luan and teben in contemporary life. This study used
interpretative naturalistic research method by emphasizing the empirical aspects of sensual, ethical, emic, logical, and transcendental. The results showed that there was a pattern of meaning on luan and teben in the conception of zoning, transformation of spaces and buildings, orientation of the building mass, as well as producing a pattern of meaning in zoning and ritual functions as the most important part in the residential space layout of Balinese ethnic houses in the midst of the development of Denpasar
Identification of cardiovascular risk factors among Hajj pilgrims from Bali 2018
Get PDFAlmost 2 million Muslims from more than 183 countries conduct Hajj to Mecca, Saudi Arabia every year. This event carries significant public health challenges not only infectious disease transmission but also exacerbation of non-communicable diseases. Although the prevalence of cardiovascular disease (CVD) was not high, it confers high mortality rate. The aim of this study is to identify major risk factors of cardiovascular event among Hajj pilgrims from Bali in 2018. A cross sectional study was conducted in Western Denpasar Community Health Center, where the Hajj preparations take place. Demographical data, history of preexisting medical illness, physical examination, laboratory, electrocardiogram (ECG) and thorax x-ray results were collected. CVD risk defined as the finding of at least one of the parameters (hypertension, diabetes mellitus, dyslipidemia, hyperuricemia, ECG or x-ray abnormalities). A total of 99 participants were enrolled in the study. Among them, 97 (98%) participants had at least one CVD risk factor. Significant findings of Hajj Pilgrimage with CVD risk implicate that the CVD risk factors identification are profoundly recommended to prevent mortality and morbidity related to cardiovascular event during Hajj-period
[Turnitin] The Exixtence of Natural Lexicons in ‘Awig-Awig’ Tenganan Pegringsingan Bali:An Ecolinguistic Approach
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Spatial Analysis of Safety Factors due to Rain Infiltration in the Buyan-Beratan Ancient Mountains
Get PDFSukasada and Sawan Subdistricts are areas in Buleleng Regency that are often hit by
landslides due to their geological conditions, since they are composed of weathered volcanic
rocks, consisting of intersections with faults and rock joints. A rainfall model analysis is carried
out in order to determine the probability of precipitation, while WindRose is used to analyze the
duration of the dominant rainfall. Furthermore, SoilVision is used to determine the grain size
distribution. Meanwhile, the equations proposed by van Genuchten and Fredlund and Xing are
used to estimate the Soil-Water Characteristic Curve (SWCC). The Green-Ampt model is also used
to calculate infiltration capacity. Slope stability is analyzed using an infinite slope model in order
to produce a spatial-temporal prediction map of slope stability in the form of safety factor (SF).
The results of the hydrology analysis reveal that rain with an intensity of 87.32-92.27 mm/day, a
duration of 6-7 days, and types of soil in each study location in Sukasada and Sawan Subdistricts
affects the amount of infiltration and it, in turn, affects slope stability. Extrapolation results for the
spatial-temporal map of landslide hazard reveal the classification of safety factor as follows, SF >
2.13 (low/stable), 1.40 < SF < 2.12 (moderate/critical) and SF < 1.39 (high/landslide