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TAS Country : August 19th 2010
Friday, August 20, 2010 Tasmanian Country 9 Incitec Pivot Fertilisers is a business of Incitec Pivot Limited, ABN 42 004 080 264. As we move out of winter and into spring, it is time for us to turn our attention to hay and silage production. If dry matter production is in excess of grazing requirements, there is an opportunity to conserve that fodder and extend the quality and quantity of feed out to the drier months. Nitrogen is a key investment for increasing total dry matter production. However, the return on this investment can vary, depending on pasture species, base fertility and most importantly, moisture. If there is good potential for growth, nitrogen should be applied immediately after grazing once paddocks are locked up at rates of 30-50 kg/ha of nitrogen. Another key nutrient in silage production is potassium, as large amounts of the nutrient can be removed with silage and hay production. The critical Colwell K levels for potassium are dependent on soil texture. For a sandy soil, the critical value is 126 mg/kg, whereas for a clay loam soil the critical value is 161 mg/kg*. Applying excess potassium is not only an unnecessary expense, it could also lead to animal health problems such as hypomagnesia (grass tetany), which is due to the imbalance between the luxury plant consumption of potassium at the expense of magnesium uptake. This metabolic disorder can occur in animals close to calving that are consuming high potassium pasture or fodder. High potassium soils and pastures will generally be those close to the dairy, or where large amounts of fodder have been fed out. Paddocks with a long history of hay and silage production and soils where potassium levels are below critical values should respond best to potassium fertilisers. Where potassium levels are close to critical values, maintenance applications can be made. At the end of the day, understanding your soil fertility through soil testing, choosing the right paddocks and applying fertilisers at the right rate and right time should set you up well for silage production. Darryl Johnson Area Sales Manager Incitec Pivot Fertilisers Darryl Johnson Setting up for silage production * Making Better Fertiliser Decisions for Grazed Pastures, DPI VIC, 2007. News Midwinter Gathering The AJF provides rewards of up to $30,000 for information that leads to a successful prosecution or signi cant animal welfare outcome as judged by the AJF. ADVERTISEMENT Have you witnessed animal cruelty in your workplace? The Animal Justice Fund would like to hear from you. e-mail: firstname.lastname@example.org TO PROVIDE INFORMATION: or call: 0457 448 419 www.AnimalJusticeFund.org has to be cultivated The rest of the world seems to have accepted that the energy sources we rely on now are a limited resource and they're steaming ahead with renewables, but here we just seem to be standing still.' soil type. In rural area, it was important to integrate the garden into the surround- ing landscape. Often clients wanted the garden to provide shelter from prevailing weather, but also to maintain views from the property. Setting manageable garden boundaries and choosing the right plants to suit the amount of water available was also essen- tial for a successful garden. Mr Barbour said now- adays there were many products, such as lighting, that could make gardens spectacular. If using a landscaping contractor, Mr Barbour said it was important that they understood the importance of how the garden design and how it works. TASSIE EXAMPLE: International Renewable Energy Alliance chairman Peter Rae Energy alliance chief puts call for renewal AUSTRALIA is being left behind in the renewable energy race and a lack of political will at the Federal Government level is being blamed. International Renewable Energy Alliance chairman Peter Rae told participants at the Midwinter Gath- ering at Quamby Estate, that com- pared to many other countries, Australia's development of renew- able energy was almost at a stand- still. During his presentation, Mr Rae said it was well known that de- veloping nations such as China and India were investing heavily in renewable energy, but many other developed countries were doing the same. ''There's this perception here in Australia that countries like the US aren't doing very much on renew- ables, but that's completely un- true,'' he said. ''There seems to be an attitude here that we shouldn't jump ahead, but the longer we leave it, the more it's going to costs us to catch up.'' In the US wind generation had increased from 2500 megawatts in 2000 up to 35,000 megawatts in 2009, he said. Investment in the US into renew- able energy had jumped from $US20 billion in 2004 up to $US150 billion in 2009. ''Whenever renewable energy is discussed here in Australia, we're told there are programs that are happening, but the simple fact is other countries have got more programs,'' he said. ''The rest of the world seems to have accepted that the energy sources we rely on now are a limited resource and they're steam- ing ahead with renewables, but here we just seem to be standing still.'' About 160,000MW of wind gener- ation is enough to power about one million households or the equivalent to the US population. Between 2005 and 2008 China, India and South Korea increased their wind generation capacity alone by 250 per cent. While the investment so far into renewable energy across the globe has been huge, Mr Rae said the planned targets for some countries was even more impressive and now looked highly achievable. By 2010, China plans to increase it's hydro power generation from 190,000MW to 350,000MW and wind from 26,000MW to 150,000MW. Mr Rae said even oil based economies in the middle east region were investing heavily in renew- able energy as supplies of oil continue to decrease. Mr Rae said for agriculture, the development of renewable energy could be a huge advantage. ''In the future I can see groups of farmers getting together in their area and setting up small winds farms and becoming self sufficient for energy... that's what we're see- ing happening in a lot of different countries already.'' Mr Rae said a campaign of disinformation in Australia had caused important facts about re- newable energy to be overlooked. The perception that renewables could not provide base load power needs was completely false and the fact Tasmania had supplied base load power from hydro for about 100 years, was a good example. Solar power alone could supply 17 times the current world energy demand, he said. Tasmania could play a leading role in Australia when is came to renewable energy development. ''There just seems to be a lack of political will in Canberra and a lack of leadership when it comes to renewables, which is very frustrat- ing,'' he said. ''When you compare what we're doing here to what's happening around the world, we are really being left so far behind, but it's never too late to try''
August 12th 2010
August 26th 2010