scholarly journals Rancang Bangun Akuaponik untuk Masyarakat Kelapa Dua Tangerang

2021 ◽  
Vol 1 (1) ◽  
pp. 33-40
Author(s):  
Arka Soewono ◽  
Isdaryanto Iskandar ◽  
Rory Anthony Hutagalung ◽  
Anthon De Fretes ◽  
Canisius Ivan Darmawan
Keyword(s):  
Community Outreach ◽  
Small Scale ◽  
Water Spinach ◽  
Sustainable Food ◽  
Main Partner ◽  
Cultivation System ◽  
Leafy Greens ◽  
Hydroponic Cultivation ◽  
Further Development ◽  
Joint Evaluation

Aquaponic is a combination hydroponic (cultivation of plants without soil) and aquaculture (fish growing) that promotes sustainable food production. In order to be adopted by general population, the design of aquaponics needs to be practical and economical. The main purpose of this community outreach is to design and introduce small-scale aquaponics system that can be used by homeowners with limited backyard. For this purpose, the community located at Kelapa Dua Tangerang was chosen as the main partner. The prototype of the small-scale aquaponics was then used as education and demonstration tool to encourage the community of Kelapa Dua Tangerang to adopt eco-friendly aquaponics cultivation system. The prototype of the aquaponics worked flawlessly with the water circulation inside the system was set at 0.046 litre/second. The water was used to supply adequate nutriens for water spinach, lettuce and pak choy which can be harvested in two months. In addition, this leafy greens can enhance the overall yard aesthetics. For the aquaculture, the catfish in the tank showed steady grow rate and healthy condition. In general, the education process can be considered successful as indicated by positive responses from the community (feedback score of 2.93 out of 4). From joint evaluation, the community excited with further development of the small-scale aquaponics.

scholarly journals ANALISIS USAHA HIDROPONIK DI KOTA MAKASSAR (STUDI KASUS DELTA FARM)

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Citra Ayni Kamaruddin ◽  
Muhammad Imam Ma'ruf ◽  
Marhawati . ◽  
Amar Basra ◽  
Dewi Rahmawati
Keyword(s):  
Primary Data ◽  
Small Scale ◽  
Cultivation System ◽  
Location Selection ◽  
Purposive Sampling ◽  
South Sulawesi ◽  
Nutrient Film Technique ◽  
Hydroponic Cultivation ◽  
Vegetable Farming ◽  
Break Even Point

AbstrakAlih fungsi lahan menyebabkan semakin berkurangnya luas areal tanam sehingga dibutuhkan solusi mengenai hal ini. Salah satu solusi permasalahan tersebut adalah sistem budidaya dengan hidroponik, namun diperlukan analisis terkait keuntungan yang diperoleh dengan menggunakan sistem ini. Penelitian ini bertujuan untuk mengetahui kelayakan usaha hidroponik Delta Farm dengan pendekatan titik impas atau Break Even Point (BEP). Populasi dalam penelitian ini adalah pengusaha pertanian yang menggunakan sistem hidroponik dalam membudidayakan tanaman, yakni Delta Farm. Pemilihan lokasi ini didasarkan secara purposive sampling dilihat lama usaha yang dijalankan karena Delta Farm merupakan perintis usahatani sayuran secara hidroponik di Kota Makassar. Penelitian ini dilaksanakan pada bulan Oktober 2020 di Makassar, Sulawesi Selatan. Teknik pengumpulan data yang dilakukan adalah penelusuran pustaka, observasi dan wawancara. Data yang digunakan merupakan data primer hasil wawancara dengan Ibu Fenny, S.T., S.Pd. selaku pemilik Delta Farm. Hasil temuan dalam penelitian ini menunjukkan bahwa usaha Delta Farm dalam budidaya sayuran hidroponik Nutrient Film Technique (NFT) skala kecil menguntungkan. Hal ini dapat terlihat dari jumlah produksi yang melebihi BEP produksi sebanyak 7,75 kg, tingkat harga yang melebihi BEP harga sebesar Rp 6.039,02/kg, dan penerimaan yang melebihi BEP penerimaan senilai Rp 542.680,09.Kata kunci: hidroponik, titik impasAbstractThe conversion of land functions causes a reduction in the planted area, so a solution is needed. One solution to this problem is a hydroponic cultivation system, but an analysis is needed regarding the benefits obtained by using this system. This study aims to determine Delta Farm's hydroponic business's feasibility using the break-even point (BEP) approach. This study's population was agricultural entrepreneurs who use hydroponic systems in cultivating plants, namely Delta Farm. The location selection is based on purposive sampling based on the length of time the business has been running because Delta Farm is a hydroponic vegetable farming pioneer in Makassar City. This research was conducted in October 2020 in Makassar, South Sulawesi. This study used a literature search, observation, and interviews for data collection. Primary data from interviews with Ms. Fenny, S.T., S.Pd. as the Delta Farm owner are used in this study. This study's findings indicate that Delta Farm's efforts in small-scale Nutrient Film Technique (NFT) hydroponic vegetable cultivation are profitable. It can be seen from the production amount that exceeds the production BEP of 7.75 kg, the price level that exceeds the BEP price of IDR 6,039.02 / kg, and the revenue that exceeds the BEP of IDR 542,680.09.Keywords: hydroponic, break-even point  

Evaluating the capacity of small farmers to adopt aquaponics systems: empirical evidence from Brazil

2021 ◽  
pp. 1-9
Author(s):  
Alexandria Brewer ◽  
Jose F. Alfaro ◽  
Tadeu Fabricio Malheiros
Keyword(s):  
Empirical Evidence ◽  
Food Systems ◽  
Product Placement ◽  
Organic Production ◽  
Limiting Factors ◽  
Small Scale ◽  
Small Farmers ◽  
Sustainable Food Systems ◽  
Sustainable Food ◽  
Small Scale Farmers

Abstract Aquaponics technology has recently been offered as a good option for sustainable food systems among small-scale farmers, particularly those seeking an organic production or dealing with land quality constraints, such as urban farmers. However, there is a lack of empirical evidence for the capacity of small farmers to adopt the technology. The unique requirements of aquaponics may create technical, economic and even cultural constraints and opportunities. This paper uses empirical evidence gathered with small-scale farmers in São Carlos, State of São Paulo, Brazil, to present the capacity of adoption for the technology, including possible limiting factors and incentives for farmers. The study conducted interviews with owners of ‘agriculturas familiares’ (Portuguese for small family owned farms) within 30 km of São Carlos. The interviews revealed that there is widespread interest in the potential profitability of aquaponics systems, significant interest in environmentally friendly practices, familiarity with organic production and hydroponics and a large base of agricultural knowledge in the community that can drive adoption. However, lack of initial financing, limited human power and concerns about product placement were significant barriers to adoption. For settlement farmers (those working on land formerly abandoned) poor soil quality and water scarcity are key issues that could be alleviated by the technology. The city of Sao Carlos present program for purchasing specific types of products from these farms could be used as a model for increasing aquaponics adoption and relieving success concerns.

Comparing the Microbiological Status of Pre- and Postharvest Produce from Small Organic Production

2015 ◽  
Vol 78 (6) ◽  
pp. 1072-1080 ◽  
Author(s):  
AIXIA XU ◽  
DONNA M. PAHL ◽  
ROBERT L. BUCHANAN ◽  
SHIRLEY A. MICALLEF
Keyword(s):  
Food Safety ◽  
Organic Production ◽  
Wash Water ◽  
Small Scale ◽  
Organic Farms ◽  
Production Scale ◽  
Safety Risk ◽  
Leafy Greens ◽  
Postharvest Handling ◽  
Food Safety Risk

Consumption of locally, organically grown produce is increasing in popularity. Organic farms typically produce on a small scale, have limited resources, and adopt low technology harvest and postharvest handling practices. Data on the food safety risk associated with hand harvesting, field packing, and packing-house handling with minimal treatment, at this production scale, are lacking. We followed produce from small organic farms from the field through postharvest handling and packing. Pre- and postharvest produce (177 samples) and water (29 samples) were collected and analyzed quantitatively for Escherichia coli, total coliforms (TC), aerobic bacteria (APC), yeasts, molds (M), and enteric pathogens. No pathogens were recovered. E. coli was detected in 3 (3.6%) of 83 preharvest produce samples, 2 (6.3%) of 32 unwashed and 0 of 42 washed postharvest produce samples, and 10 (34.5%) of 29 water samples. No correlation was found between bacterial levels in irrigation water and those on produce. Postharvest handling without washing was a factor for APC and M counts on tomatoes, with lower frequencies postharvest. Postharvest handling with washing was a factor for leafy greens for TC counts, with higher frequencies postharvest. APC (P = 0.03) and yeast (P = 0.05) counts were higher in preharvest than in unwashed postharvest tomatoes. Washed postharvest leafy greens had higher M counts (P = 0.03) and other washed produce had higher TC counts (P = 0.01) than did their preharvest counterparts. Barriers were found to the use of sanitizer in wash water for leafy greens among small farms using organic practices. Hand harvesting and dry handling did not appear to be associated with a significant food safety risk, but washed leafy greens carried higher levels of some microbial indicators, possibly because of the lack of sanitizer in the wash water. The development of resources and materials customized for this sector of growers could enhance dissemination of information on best practices for handling of leafy greens.

scholarly journals Features and Socio-Economic Sustainability of Traditional Chestnut Forestry Landscape in China: A Case of Kuancheng County, Hebei Province

Land ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 952
Author(s):  
Lulu He ◽  
Qingwen Min ◽  
Chuanchun Hong ◽  
Yongxun Zhang
Keyword(s):  
Economic Status ◽  
Northern China ◽  
Small Scale ◽  
Labor Input ◽  
Cultivation System ◽  
Cultural Sustainability ◽  
Ecological Farming ◽  
Farming Households ◽  
Effective Conservation ◽  
Difficult Issue

Since Important Agricultural Heritage Systems (IAHS) were launched by the FAO to protect the sustainable traditional agricultural systems around the world, their conservation has become a new difficult issue under the context of urbanization. Farmers in IAHS sites giving up small-scale traditional farming due to their low economic benefit and high labor intensity are considered as the main cause hindering effective conservation of these heritages. This study takes the Kuancheng traditional chestnut cultivation system (KTCCS) in northern China as a case to assess its economic and socio-cultural sustainability. Based on questionnaires and interviews, this study found that: the traditional ecological farming methods were still used by local farming households to plant chestnut trees; and most farmers support IAHS conservation. KTCCS performs economic and socio-cultural sustainability. For a household, the labor productivity of chestnut cultivation was 1.33 times that of their non-farm jobs because of the low labor input of chestnut cultivation. Farmers widely consider they live in a harmonious social environment but are lower than other households in economic status. Most farmers still lack an understanding of indigenous traditional knowledge and cultures. In the future, secondary and tertiary industries should be developed to provide farmers with employment opportunities in their hometowns for protecting KTCCS.

scholarly journals Students learning with interactive virtual math: an exploratory study in the classroom

2017 ◽  
Vol 1 (1) ◽  
pp. 80 ◽  
Author(s):  
Sônia Palha
Keyword(s):  
Secondary School ◽  
Secondary School Students ◽  
Tertiary Education ◽  
Learning Experience ◽  
Small Scale ◽  
School Students ◽  
Dynamic Events ◽  
The Subject ◽  
Scale Experiment ◽  
Further Development

Interactive Virtual Math (IVM) is a visualization tool to support secondary school students’ learning of graphs by dynamic events. In the prototype version students construct a graph and try to improve it themselves and with the feedback of the tool. In a small-scale experiment, which involved four classes at secondary and tertiary education and their mathematics teachers we investigated how the students used the tool in the classroom. In this study we focus on the students learning experience and the results are expected to provide knowledge and directions for further development of the tool. The corpus data consists of self-reported questionnaires and lessons observations. One main finding is that students, at different school levels, find the tool useful to construct or improve graphical representations and it can help to get a better understanding of the subject. The tool features that helped students most were the self-construction of the graphs and to get feedback about their own graph at the end. Other findings are that the students can work independently with the tool and we know more about the tool features that are attractive or need to be improved.

Plant factories - closed plant production systems.

2021 ◽  
pp. 229-245
Author(s):  
Lynette Morgan
Keyword(s):  
Production Systems ◽  
Environmental Control ◽  
Plant Production ◽  
Small Scale ◽  
Cultivation System ◽  
Crop Cultivation ◽  
Multilevel Systems ◽  
Crop Nutrition ◽  
Plant Factory ◽  
Growing Environment

Abstract This chapter focuses on plant factories, which is an indoor, enclosed, crop cultivation system where the growing environment is precisely controlled to maximize production. Topics covered are the history and background of plant factories,advantages of plant factories, criticisms of plant factories, costs and returns of plant factories, domestic and other small-scale plant factories, crops produced including pharmaceuticals, vertical or multilevel systems, including moveable systems, crop nutrition in plant factories, plant factory environments, lighting, environmental control and plant quality in plant factories, and automation and robotization.

scholarly journals A Remote Sensing-Based Approach to Management Zone Delineation in Small Scale Farming Systems

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1767
Author(s):  
Davide Cammarano ◽  
Hainie Zha ◽  
Lucy Wilson ◽  
Yue Li ◽  
William D. Batchelor ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Vegetation Index ◽  
Farming Systems ◽  
Small Scale ◽  
Sustainable Food ◽  
Environmentally Sustainable ◽  
Management Zone ◽  
The North ◽  
Landsat Satellite ◽  
The Village

Small-scale farms represent about 80% of the farming area of China, in a context where they need to produce economic and environmentally sustainable food. The objective of this work was to define management zone (MZs) for a village by comparing the use of crop yield proxies derived from historical satellite images with soil information derived from remote sensing, and the integration of these two data sources. The village chosen for the study was Wangzhuang village in Quzhou County in the North China Plain (NCP) (30°51′55″ N; 115°02′06″ E). The village was comprised of 540 fields covering approximately 177 ha. The subdivision of the village into three or four zones was considered to be the most practical for the NCP villages because it is easier to manage many fields within a few zones rather than individually in situations where low mechanization is the norm. Management zones defined using Landsat satellite data for estimation of the Green Normalized Vegetation Index (GNDVI) was a reasonable predictor (up to 45%) of measured variation in soil nitrogen (N) and organic carbon (OC). The approach used in this study works reasonably well with minimum data but, in order to improve crop management (e.g., sowing dates, fertilization), a simple decision support system (DSS) should be developed in order to integrate MZs and agronomic prescriptions.

scholarly journals Sustaining Community-University Collaborations: The Durham University Model

2011 ◽  
Vol 4 ◽  
pp. 218-231 ◽  
Author(s):  
Andrew Russell ◽  
Andy Cattermole ◽  
Ray Hudson ◽  
Sarah Banks ◽  
Andrea Armstrong ◽  
...  
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Public Engagement ◽  
Community Outreach ◽  
Community Partnerships ◽  
The Future ◽  
Corporate Social ◽  
The University ◽  
Future Vision ◽  
Further Development

Durham University has initiated a community outreach and engagement program based on an evolving multifaceted model. This article analyses the components of the model and looks at how our work at Durham has become increasingly embedded in the structures and processes of the university as it has developed. The strengths and weaknesses in what has been achieved are highlighted, as is the future vision for the further development of this innovative community-university program. Keywords Public engagement; community partnerships; employer supported volunteering; corporate social responsibility

The Persona and the Addressee in Juvenal Satire 11

Ramus ◽  
1990 ◽  
Vol 19 (2) ◽  
pp. 160-168
Author(s):  
F.M.A. Jones
Keyword(s):  
Small Scale ◽  
Ad Hominem ◽  
The Third ◽  
The Difference ◽  
Further Development ◽  
The Voice

The approach to the Satires of Juvenal via the persona theory is well-known and has been productive. Somewhat less notice has been given to the fact that a considerable number of the satires have their persona moulded around another character, an addressee or an interlocutor, or sometimes an important narrative figure. Such characters ‘justify’ the persona, which can now be seen as a kind of ad hominem irony. This matter is intricately linked with the role of indignatio. Thus indignation, programmed in the first satire, becomes a little suspect in Laronia's mouth in the second. Laronia is a small scale character, but the techniques used in her regard appear again in the third satire, where the difference between Juvenal and Umbricius reveals the inadequacy of indignatio a little more clearly. The difference between the treatment of Crispinus and of Domitian in the fourth satire carries this process further. In the fifth, Juvenal tries to rouse the abject Trebius, but in his own apostrophe to Virro (Sat. 5.107f.) shows that indignatio is not, perhaps, appropriate at all. The role of indignatio diminishes further in the later satires, noticeably in the ninth, where Juvenal's tone is one of banter and Naevolus reveals his own unpleasantness. Much of this process has been charted by S. Braund in a book on the seventh, eighth, and ninth satires. The argument can be resumed with the eleventh satire where there is a further development. In the earlier satires which use address or dialogue there is an impressive realism in dramatic terms about the confrontation and psychology. In the eleventh (and even more, the twelfth) the development of the techniques of irony begins to intrude on the dramatic plausibility: the voice assumed in the poem becomes more aware of the audience as well as the addressee. As the beginning of a demonstration of this change I now provide an analysis of the use of Persicus in the eleventh satire.

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