Controlled burn "Back-burn" redirects here. For the village in Scotland, see Backburn. An experimental burn in Canada; note the measuring equipment in front. Firing the woods in a South Carolina forest with a custom made driptorch mounted on an ATV. A prescribed burn in a Pinus nigra stand in Portugal Controlled burning of a field outside of Statesboro, Georgia, United States in preparation for spring planting Controlled or prescribed burning, also known as hazard reduction burning (HRB), backfire, or swailing, is a technique sometimes used in forest management, farming, prairie restoration or greenhouse gas abatement. In industrialized countries, controlled burning is usually overseen by fire control authorities for regulations and permits. History[edit] Controlled burns have a long history in wildland management. Fires, both naturally caused and prescribed, were once part of natural landscapes in many areas. Back burning[edit] Forest use[edit] Another consideration is the issue of fire prevention.
Grow box Plants can be grown indoors year round using a grow box A grow box is a partially or completely enclosed system for raising plants indoors or in small areas. Grow boxes are used for a number of reasons, including lack of available outdoor space or the desire to grow vegetables, herbs or flowers during cold weather months. They can also help protect plants against pests or disease. Grow boxes may be soil-based or hydroponic. The most sophisticated examples are totally enclosed, and contain a built-in grow light, intake and exhaust fan system for ventilation, hydroponics system that waters the plants with nutrient-rich solution, and an odor control filter. Key growlight options include fluorescent bulbs, which offer relatively limited light output; high-intensity discharge lamps such as sodium-vapor lamps and metal-halide lamps; and light-emitting diodes bulbs, which are becoming more energy-efficient. Important basic parts of grow cabinet[edit] See also[edit] References[edit]
Land Manager You can use this site to search for information about a specific area or topic by selecting your 1: Region, 2: Topic, 3: Item Type and/or 4: enter a Keyword. Clicking on further topics or regions will produce new lists of information. Information produced from your search is shown both on the map and in the results list next to the map. This website was created by the NT InfoAccess program supported by Territory NRM, Charles Darwin University and the Northern Territory Government. It aims to meet the information needs of north Australian land managers including pastoralists, Landcare groups Indigenous groups and government agencies. It enables people to make better land management decisions by providing information on the soils, pasture and plants and animals that need to be looked after, and on the problems land managers face, such as wildfire, weeds and pest animals.
Microbial Fuel Cells: Generating Power from Waste Microbial Fuel Cells (MFCs) use bacteria to convert organic waste material into electrical energy. This environmentally-friendly process produces electricity without the combustion of fossil fuels. MFCs have various practical applications such as in breweries, domestic wastewater treatment, desalination plants, hydrogen production, remote sensing, and pollution remediation, and they can be used as a remote power source. Introduction Washing one’s hands with soap is usually accompanied with the satisfaction of killing harmful germs. MFCs are especially valuable in that there are many applications of their use help to reduce pollution and cut water treatment costs in a sustainable and environmentally-friendly way. What is a microbial fuel cell? Microbial fuel cells harness the power of bacteria and convert energy released in metabolic reactions into electrical energy. Fig. 1 depicts a typical MFC set-up in a research laboratory. How Does a Microbial Fuel Cell Work? Sewage Treatment
The Future of Food - Landline - ABC ANNE KRUGER, PRESENTER: After promising a national food plan during last year's election, this week the Federal Government gave a glimpse of what might be in it with the release of an issues paper. And there are a lot of issues to consider when trying to work out how to double food production by 2050 to meet global demands while protecting fragile resources. International and local experts say Australia could be a leader in securing global food supplies by exporting its farming and agricultural science smarts, as well as its produce. Kerry Staight filed this special report. PETER CARBERRY, CSIRO: In the next 40 years, we have to produce as much food as the world has produced in the last 500 years. JOHN CRAWFORD, UNI. JULIAN CRIBB, AUTHOR, 'THE COMING FAMINE': We're running out of water, we're running out of oil, we're running out of agricultural science and technology. KERRY STAIGHT: It's a challenge that hasn't confronted food producers before. MICHAEL D'OCCHIO, UNI. MARK TESTER, AUST.
24 Watt LED Grow Light with Brightness Control Greenhouse Aluminum foil Large box Plastic board Grow lamp 2 x 3W royal blue LED (445nm) 6 x 3W deep red LED (660 nm) Heatsink with fan Thermal paste Epoxy Solder (lead free when growing edibles) Note: You can get LEDs at e-Bay for as little as $2 each when you purchase them whole sale. LED Driver 1A fuse with clips Resistors (0.33, 0.56, 1, and 100k ohm) N-channel MOSFET (eg. Finding the right voltage adapter You can find adapters at a low price at used computer stores, second hand stores, electronic stores, and ebay. Note: Fuses and wires may cause a small drop of voltage so you may want an overhead voltage of at least 1V. Tools: Multimeter capable of measuring several amps Light meter (optional) Electric timer (optional)
Savanna Explorer - Northern Australia - North East Queensland - Fire - Trafalgar Station by Roger Landsberg, Trafalgar Station From Savanna Burning — Understanding and Using Fire in Northern Australia , Tropical Savannas CRC, Darwin 2001 Trafalgar Station near Charters Towers is a 32,000 hectare property with a carrying capacity of about 3200 adult equivalents. Pasture management and fire I aim to "spell" 15–20% of the property each year to allow the grass to strengthen and drop seed; the build-up of pasture gives us an option to burn. If the season is poor, I may keep the grass for drought feed or burn later. Fire management The pasture is usually burned in October–November when the weather is hot, slightly humid and the winds are fairly light, preferably from the north. The conditions must be right before I burn. After the fire, stock should be excluded until ground cover is well established, preferably after good rain. Fire for woody control Fire is very effective against some weeds. Dense and light infestations of rubber vine in the paddock are effectively controlled.
The Internet Of Things Is People, Innovating For an object that has come to symbolize great ideas, there sure hasn't been that much innovation surrounding lightbulbs. But that's going to change very soon. And not in the relatively humdrum manner of eco-friendly fluorescent units. We mean radically, in a as-smart-as-science-fiction kind of way. And there is much more domestic alchemy where that comes from. Tomorrow In Lights Picture a lightbulb. Now picture a totally different kind of bulb. It's smart enough that if you put it in a bedside lamp it could detect that you've woken and are heading for that midnight leak--and it knows the time, so it automatically turns on dimly to not hurt your eyes. A group of smart lamps could be intelligent enough to chatter to one another over Wi-Fi, allowing you to create amazing lighting "scenes" for your home, just like a lighting engineer in a theater. By being made smart, the simple lightbulb is transformed. What will happen to home decor? Smart Chips With An Internet Sauce A Smart Start
The coming famine: risks and solutions for global food security Growing scarcities of water, land, oil and nutrients will combine with climate change to create a serious threat to global food security in coming decades. These could result in major regional famines, wares and refugee crises, Julian Cribb warns. Image: richardmasoner, Flickr CC-licensed. Please click on the images to enlarge. Most of us have by now heard the forecast there will be 9.2 billion people in the world of 2050. Equally, the world economy will continue to grow – and China, India and other advancing economies will require more protein food. Thus, global demand for food will more than double over the coming half-century, as we add another 4.7 billion people. The central issue in the human destiny in the coming half century is not climate change or the global financial crisis. It is whether humanity can achieve and sustain such an enormous harvest. The world food production system today faces critical constraints. It is a wicked problem. Then there’s waste. We must reinvent them. 1.