ande

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Everything posted by ande

  1. Hi vkn cheers
  2. Hi BD cheers
  3. Hi Strider Took me a while to grasp your point I do now cheers
  4. Hello AtomsDad Welcome to APN/HQ cheers
  5. Hi vkn Nice capture, the seedling looks so strong and yet vulnerable at the same time cheers
  6. Hi BM76 Well done thanks for posting , and good luck ahead cheers
  7. Hi Wills C Thanks for your update Would be nice to see a few pics of the new heating system you described in the heating green house thread cheers
  8. Hi I found this article on urban farming interesting from here https://progrss.com/sustainability/20160410/urban-farming-panacea-foodie-fad/ enjoy Urban Farming: Panacea or Foodie Fad? Yasmine Nazmy April 10, 2016 Driven partially by concerns about food security and food safety, the rise of urban farming has gone hand-in-hand with the growth of local food movements, which have encouraged more people to consider where and how their food is produced. Urban and peri-urban agriculture (UPA) spans a number of agricultural practices, including hydroponics and aquaponics, aquafarming, horticulture, beekeeping, and, to a lesser extent, animal husbandry. Contemporary urban farming is lauded for lowering the ecological footprint of food production, decreasing food miles, creating jobs, adding greenery to cities, and promoting environmental justice and community empowerment as well as reducing the heat island effect. Many urban farmers capitalize on unused property like abandoned parking lots and empty spaces between buildings, or on vertical growing technologies (think: wall gardens and two-story farms), with an emphasis on soil-free solutions like hydroponics and aquaponics. Aquaponics – perhaps the most popular trend in sustainable agriculture today, and which entails growing plants in water enriched by fish – allows growers to run sustainable seafood operations hand-in-hand. But for all its popularity, many question the accessibility of urban farming produce to communities who cannot afford to pay a premium for locally grown organic goods, essentially asking whether urban farming is more of a hobby for white, middle class hipsters than an answer to food security. Agricultural economist Maurice Hladik, author of Demystifying Food from Farm to Fork, argues that urban farming as a solution to food scarcity is a myth, and that large-scale food production is both more efficient and more sustainable on the long run. Hladik notes that counting food miles might be misleading, since rarely do urban farming proponents talk about “soil miles,” or the cost of transporting soil to urban farms. Hladik argues that rooftop gardening is one of the least water-efficient farming practices, pointing to its high consumption of water and high soil temperatures as flaws that make it environmentally unsustainable. Finally, he notes that the usage of potable water for irrigation is another indicator of just how misleading it is to assume that urban farming is a more environmentally sustainable solution to urbanites (UrbanAgLaw, a collaborative that supports urban agriculture in the United States, also points to the problems associated with using potable water for agriculture). Urban policy and environment writer Will Boisvert points out some of the other fallacies associated with urban farming. Using the example of New York, Boisvert argues that, rather than transform vacant lots into seasonal urban gardens which often remain unused for much of the year, affordable housing and year-round jobs could be created for people in these spaces, decreasing the need for them to commute long distances from the city’s fringes and reducing urban sprawl. Boisvert also notes that, while transporting something within a city may consume fewer miles, it often entails transporting smaller loads through denser traffic, effectively making it less fuel-efficient. In many ways, Hladik and Boisvert are right; our cities just aren’t built for farming. They are hot, densely populated, and often-polluted places that are built to put people, services and businesses in one place. A recent study by Carolyn Dimitri, Lydia Oberholtzer and Andy Pressman published in the British Food Journal notes that urban farming in many cities in the United States may not have the business model built into it to be sustainable. The authors note that urban farming poses challenges like “high land costs, water prices, and regulatory barriers,” all of which raise production costs. The study also found that urban farms often had nonmarket goals, and that many of their targets included: “educating consumers about food and agriculture, local food systems, supporting local communities, building community, and/or reducing food insecurity in underserved neighborhoods.” In other words, many of these farms are more effective at engaging communities than they are at feeding them or making profit themselves. Notably, the study demonstrates the shift that urban farming has undergone from an activity for poor communities in the cities of developing countries to a common practice in large cities of wealthy countries. According to the study, however, any similarity between urban farming in the North and South ends there: urban farming in poor countries often benefits women the most and is usually practiced by rural migrants who farm to produce food that they would go hungry without; in the North, it is used to combat obesity, whereas in the South, it is to combat malnutrition. Some Urban Farms Are More Equal Than Others But while urban farming may be “trendy” in the North because of the rise of local food movements –better known as locavorism – the one thing that critics of urban farming agree on is that not all urban farms are created equal. Organic urban farming in Cuba, which was introduced after the fall of the Soviet Union in 1989 as a solution to the food crisis that followed, has since made Havana a model for self-sustainable farming. More recently, food shortages in Venezuela have pushed the government to encourage citizens to turn to urban farming and the country has even formed a Ministry of Urban Farming. And then there is the United Nations’ Food and Agriculture Organization’s (FAO) shocking estimate that 800 million people around the world – roughly 40% of the world’s urban population – practice urban agriculture. In an interview with progrss, the FAO’s Growing Greener Cities Programme’s Agricultural Officer Bruno Telemans and Senior Agronomist / Horticulture Specialist Wilfried Baudoin explain that urban and peri-urban agriculture have always gone hand-in-hand with the development of cities in the North. The difference today, they explain, is the attention given to urban agriculture and – to a certain extent, its formalization – which is proving to be useful because of its role in creating and maintaining open public spaces that are used for recreation, education and food production. Rather than a luxury, the duo perceive urban agriculture as a reality that “…offers a pathway out of poverty and malnutrition for poor urban dwellers…” The one caveat, of course, is that it be legal – which it is still not in most places where it is practiced. According to Telemans and Baudoin, urban farming has “increased civic participation and spurred neighborhood revitalization, transforming vacant and unattractive plots of public land into appealing green zones with environmental and health benefits.” They explain that the benefits are especially tangible in cities facing rapid urbanization, where large segments of the often-young population are socially excluded or unemployed, and that it is in cities like Kinshasa, Lagos, Dhaka, Delhi, Bogota and Rio de Janeiro that urban farming can and does radically affect people’s lives. The FAO itself has a variety of programs and projects designed to combat food insecurity in urban areas, and the organization emphasizes the importance of governments providing institutional, political and technical support and monitoring. The FAO’s five-point approach, which includes getting political and institutional support, securing land and water, ensuring product quality and environmental protection, securing the participation of stakeholders in the sector, and securing new markets for fruits and vegetables, attempts to create a framework for urban and peri-urban farmers to operate. What does this mean for the future of urban agriculture? Perhaps that it is, above all, a reality that we must accept, and that it is time for city administrations to create legislation and regulations to ensure it is practiced sustainably and legally. Perhaps that our cities need to be re-wired to allow greywater to be used for agriculture and for community gardens to become regular fixtures in every neighborhood. Perhaps that, as Maya Shetreat-Klein recommends, children and adults do need to understand how their food is grown and to get their hands dirty – even if only once in a while. Whether or not it is a solution to world hunger is questionable – and perhaps we are pinning too much on it in positioning it as a panacea for all nutrition-related ills in the world. For now, it certainly provides many less privileged communities with access to healthy, nutritious food and a source of income. This article was amended on April 11. An earlier version of this article stated that the FAO Growing Greener Cities Programme Researcher Diana Gutierrez was interviewed for this piece rather than Agricultural Officer Bruno Telemans and Senior Agronomist/Horticulture Specialist Wilfried Baudoin. cheers
  9. Hi again superstewie I have no knowledge on zebrafish nor corycats, but no mater specie of choice "less is more" never overload is a good rule. It takes me forever to go back/forth with metric vs US gallon/feet etc. so as an alternative to try answer your Q's May I suggest you use these calculators/factsheets here https://www.aquaponic.com.au/calculators.htm by Wilson Lennard, they should all be right and tested. They come in both metric and US measures cheers
  10. I think the experience expressed in this 1. post on the permies forum also is a fairly common, contributing factor ? https://permies.com/t/29457/Lost-love-aquaponics cheers
  11. Hi I think it's multiple reasons, weather/season, being a factor but minor such. Various reasons have been discussed in these threads and are still valid IMO When it comes to starting new IAVS systems the "new comers", but also some of the old member systems, seems to be discontinued here on APN. Some new/old iavs systems, (re)appear on Garys new forum, HaveMoreForLess, and that seems natural to me, given Marks exit from APN and participation on there. I notice that a lot of old members visit on a regular basis, but hardly ever posts (this includes the mods) cheers
  12. Your achievements speaks for it self Best of luck to you and your team It's a pleasure watching, how you are bringing iavs up to a commercial level, in many ways shaming the "nay sayers" in earlier discussion. Keep up the good work, and please continue to update us on the progress cheers
  13. Hi superstewie Welcome to APN/HQ If you look in the downloads section, you will find some white-papers, in particular on IAVS you'll find detailed figures where you can use the math approach . cheers
  14. Hi again Moses Maybe you should list some more info ? Like naming the cultivar, does it happen in both beds (Led/sunlight) and to all plants ? do the different, beds receive the same water/nutrition/light-hours/temperatures etc. The more details you provide, the bigger likelihood someone will pinpoint your problem. cheers
  15. Hi pappabear Welcome to APN/HQ cheers
  16. Hi all Today is the first "Global Recycling Day" INTRODUCING GLOBAL RECYCLING DAY 2018 An initiative of the Bureau of International Recycling https://www.globalrecyclingday.com cheers
  17. I doubt he knows what comes out of Norway as well ? Trump need to be careful wishing for more Norwegians to emigrate to America. More social democrats means America would be likely to have national health care and tuition-free public college in a decade or two. http://www.latimes.com/opinion/opinion-la/la-ol-norway-trump-immigration-20180111-story.html cheers
  18. Hi PNWuA I think you'll get more responses by posting a build thread in the member system section, with as many details possible, to get the "best" advice. That will also be of more help to other members, looking for the same. To your Q I would say the smallest pump from, our site sponsor (Allied Aqua) would do. https://alliedaqua.com/equipment-and-supplies/water-pumps-and-filtration/water-pumps/elemental-h2o-water-pump-171-gph-clone/ I would recommend plowing thru some of the earlier threads on the topic, like this cheers
  19. Hi all cheers note: you can change/set subtitles
  20. Hi again BD You forgot to include Mexico in that list Anyhow, if The D. chooses to put a general tariff on steel & aluminum, the EU (and other) will retaliate, and we will all as consumers loose with a trade war. EU have the US targets ready to roll. Quote from here : http://www.dw.com/en/eu-prepares-response-to-possible-us-tariffs/a-42652436 The focus would most likely be on agricultural produce including tomatoes and potatoes. Giving Harley-Davidson a rough ride? But according to the report, tariffs might also be slapped on motorcycle imports. The Frankfurter Allgemeine Zeitung said EU officials had mentioned the possibility of imposing a tariff on Harley-Davidson imports from Wisconsin, the home of House Speaker Paul Ryan. They also mentioned a possible tariff on bourbon from Tennessee and Kentucky, the home of longtime Kentucky Senator and Senate Majority Leader Mitch McConnell. Some items on the list of possible EU tariffs were put there during the last big trade dispute between the EU and the United States under former President George W. Bush. But many parts of the list have been altered since to reflect changing realities. Quote end. We will see, according to the D. trade war is "good" and are "easy to win" And keep in mind the president called himself a “very stable genius” and called being “really smart” one of his greatest assets. cheers
  21. Hi BD http://www.scmp.com/week-asia/opinion/article/2135330/someone-tell-trump-trade-war-over-china-won cheers
  22. Hi vkn I agree, I was thought how to like/enjoy fish in the same manner, and I'w passed that on to my kids as well. I do include participation in cleaning/dressing & cooking the catch. I remember how exciting it was to fry the fish on a bonfire, with my father & grandpa. Eating the fish with our fingers (learning the anatomy) to clean out all/any bones. Pretending we where living in the wilderness having to do this to survive. Grate childhood adventure memories I'w done that with all my kids, and they are all fond of fish (eating/catching). This fall(August) I'm gonna be a grandfather my self, and I really look forward to copy my grandpa on this, and a load of other matters. My own father died before any of my kids came along so they never had the grandpa experience. cheers
  23. Very vise move, you wouldn't want the situation to develope, like that of Mogadishu, Somalia. They now carry sharks in the inner City streets. Women is advised to avoid certain downtown areas, or to carry brooms for protection Better be proactive on the potential of shark carry problems There is even the evil shark car bomb cheers