杭州楼凤

Prevent “Wet Feet”

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first_img Most root disorders can be prevented by providing good soil drainage. Follow these simple tips to keep your plants healthy and beautiful well beyond those first six months. C. Ness, UGA CAES If the crown or major roots are affected by root rots, the entire plant can wilt and die rapidly. If only the small “feeder” roots are affected, the plant may decline slowly and just look sickly and unproductive. Sick or damaged roots may be present only on part of a plant’s root system, resulting in a one-sided appearance of yellow, stunted leaves. An ounce of prevention PREVENTING “WET FEET” IS EASIER THAN TREATING IT Yellowing plants may not need nitrogen, but less water. Provide good drainage for your plants by building raised beds that allow water to drain quickly. center_img ÿGood planning in the design of beds and lawn areas can prevent surface drainage problems. Slope beds and lawns so water runs away from the house. ÿLow areas sometimes cause problems because they can’t easily be graded to provide for adequate surface drainage. In such cases, you may need to construct drainage channels or French drains. ÿRemember to take into account water coming off of roofs as well. Take care that gutter downspouts drain away from plants and don’t pool water. ÿProvide internal drainage by using raised beds (particularly for annuals and tender perennials). ÿAmending planting beds with 3 to 5 inches of a good topsoil or compost will help improve drainage. Using less organic matter than this won’t provide enough soil structure change to make a difference. ÿDon’t place soil amendments directly in the planting hole. When you use potted plants, till or spade the amendments into the entire bed. Dig single planting holes at least twice the width of the root ball. Make the sides of the hole rough and jagged. Check drainage conditions first by filling the hole with water. If water drains in 24 hours, you can assume there is enough drainage. If water stands in the hole, take corrective measures or use only plants tolerant of poorly drained sites. ÿWhen planting, never place a plant deeper than the top of the root ball. Remember that the soilÿ may settle some if you dig too deep and have to backfill. ÿFinally, avoid overwatering. Most plants need about 1 inch of water per week. Any more than this may cause root problems. Water plants near the drip line of their foliage. Many times we get excited about planting new shrubs and flowers in the landscape. Webuyÿ the plants, dig the hole, drop them in and sit back and admire their beauty. Butsix months later they sometimes turn a disappointing shade of yellow.Problem may not be what you think Many folks then throw out some fertilizer, thinking the plants need nitrogen. In reality, these plants may very well be suffering from a problem common in Georgia soils, called “wet feet.” ÿWet feet is the name given to a list of diseases and problems associated with poor drainage. Our heavy clay soils tend to hold moisture well, and this often causes the roots of a plant to rot. ÿlast_img read more

South African creates new Zulu terms

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first_img18 February 2013A South African electrical engineer turned author has developed 480 new Zulu words to explain contemporary science and technology.Phiwayinkosi Mbuyazi has combined his love for languages, science and technology to provide children with new Zulu words through which to explore the modern world, encourage a generation of inquiring minds and preserve his mother tongue.Through his work, he wants to keep the Zulu language current by expanding its vocabulary, promoting mother tongue education, and encouraging people to read indigenous language books.“I wanted to write in Zulu about subjects no one else was writing about,” he says. “I knew that in technical fields there is nothing written in indigenous languages.”He wants to change perceptions about indigenous languages, and with the new words give people tools to understand and discuss contemporary science and technology in their home language.Becoming a language activistThe 41-year-old author, who also studied philosophy, politics and economics at Oxford University, decided to leave his day job to write a science and technology book for children.The WIBY Kids – How It All Began, and its subsequent Zulu version, AmaYIPHENDLEYA – IsiQalo Sakho Konke, tells the story about four South African teenagers, Kwethu, Jo, Scott and Bobo, and their journey to learn about mathematics, science, technology, philosophy, history and culture.With the book Mbuyazi wants to show that anyone can cultivate a dream and an innovative mind.While writing the Zulu version he also developed a brand new Zulu numbering system that lends itself to being spoken and translated into other languages with greater ease.“It isn’t heavy science,” the author says. “The WIBY Kids are to science and technology what Harry Potter is to magic and wizardry.”What was 31 000 words in English, translated to 28 000 Zulu words of which 480 are brand new.Once the English version was complete, he started translating the book into Zulu, but he soon realised just how difficult it is to write about science in his mother tongue. It was possible to write extensively about a variety of technologies in English, but this was not the case for Zulu.“This is what is contributing to the demise of the language,” Mbuyazi says. “IsiZulu will eventually become extinct because there are not enough books written in South Africa’s largest official language.”Schools are also increasingly teaching only in English, and there is hardly any literature available in indigenous languages.“What is written for indigenous languages is only for the schools market,” he says. Mbuyazi says this insight led him to create hundreds of new Zulu words to explain popular science-related concepts and words such as planet, Internet, airport, explorer, print, spark plug and even mathematics and technology.He also developed words to explain contemporary phrases such as reduce, reuse, recycle and global warming.Expanding the Zulu vocabularyMbuyazi went about researching the development of indigenous languages, and found that Zulu has anglicised many English and Afrikaans words.But coming up with new words was a difficult process. “I thought long and hard about how to translate English words into Zulu,” he says. “I do wish it was a thumb suck, but that is not how it was.”It took at least five times as long to finalise AmaYIPHENDLEYA than it did to write its English counterpart.He made use of several methods such as learning about a particular word’s origin or creating a word that relates to its function, what it looks like, sounds like, or even based on its movement.This is how he created a new word for ‘planet’.“In Zulu we have the word umhlaba which refers to the earth but there aren’t any other words that refer to Jupiter, Mercury, Pluto and the like,” he says.When he explored the original meaning of ‘planet’, he saw the English word is derived from the Greek planitis which means to hover or wander.“If you observe the movement of the planets, they appear to hover around the sun, which is why I named them umzulane which means going round,” he explains. “This shows the connection between the new word and its English translation.”He created the new Zulu word for ‘print’, gxifa, by drawing on the sound that printers make. The new word for ‘recycle’, buyafuthi, is a combination of the Zulu words for ‘bring back’, buyisa, and ‘again’, futhi.Mbuyazi hopes that through the book he can get more people talking and reading in Zulu.“When I was a child I used to read a lot and this made me passionate about Zulu. I’m afraid of it being lost in time, if you don’t keep on talking it,” he says. “We have to keep our mother tongues alive. People discount the importance of their home language and I want to change this.”First published by MediaClubSouthAfrica.com – get free high-resolution photos and professional features from Brand South Africa’s media service.last_img read more

Nick Saban Responds To Jim Harbaugh After Twitter Shot

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first_imgA closeup of Nick Saban on the Alabama sideline.TUSCALOOSA, AL – NOVEMBER 22: Head coach Nick Saban of the Alabama Crimson Tide looks on during the game against the Western Carolina Catamounts at Bryant-Denny Stadium on November 22, 2014 in Tuscaloosa, Alabama. (Photo by Kevin C. Cox/Getty Images)Tuesday, Alabama head coach Nick Saban went on a bit of a rant about satellite camps, recruiting rules and the need for a college football commissioner. While he specifically mentioned that his words weren’t meant as a shot at Michigan coach Jim Harbaugh, his point didn’t get through. Harbaugh took to Twitter a few hours later, blasting Saban for both his rant and the fact that Alabama’s staff broke recruiting rules.Well, now Saban has responded to Harbaugh. In a quote to ESPN, Saban said that he doesn’t “really care” what Harbaugh thinks or tweets. It’s a strong response.Nick Saban tells @ClowESPN about Harbaugh: “I don’t really care what he thinks or tweets. I say what I think is best for CFB & the players”— Brett McMurphy (@McMurphyESPN) June 1, 2016Harbaugh and Saban are two of the most hard-headed in the profession, so it’s no surprise that neither wants to back down here. We’ll keep you updated.last_img read more