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#1 14-09-2018 06:36:08

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Date d'inscription: 14-12-2016
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HEFEI Cheap Minnesota Vikings Hats , Sept. 12 (Xinhua) -- Chinese scientists have developed a smart pesticide that, once in the soil, is controllable and recyclable.


A team led by Wu Zhengyan, professor with the Technical Biology Institute, under Hefei Institute of Physical Science, Chinese Academy of Sciences, used diatomite Cheap Minnesota Vikings T-Shirts , iron magnesium oxide and chitosan to make a compound that can be activated by changes to pH levels in the soil.


"The release of the pesticide mixed with the additive can be easily adjusted by pH changes. The additive wraps up the drug and acts like a gatekeeper. It opens the gate and dissolves in acidic conditions," Wu said.


He said the research showed that a single-season crop only needed the pesticide spray once. During the growth of the plant, growers simply spray a weak-acid agent to activate and control the pesticide's effect. Conventional farming needs several rounds of pesticide spray.


The report on the research was published in the latest issue of the Chemical Engineering Journal, an international research journal.


Wu said China's agriculture relied heavily on the use of pesticide, which was estimated at over 1 million tonnes a year. However, less than 40 percent of such pesticide actually had an effect on crops and the rest simply washed off, contaminating soil and water.


He said the additive had magnetism Cheap Minnesota Vikings Hoodie , which made it feasible to recover the pesticide from soil and water.


"The recycling effect during our tests shows 30 percent of pesticide residue can be recovered," Wu said.


According to the research, sponsored by the National Natural Science Foundation and the Chinese Academy of Sciences, the nano-pesticide showed a high adhesion ability on weak surfaces and pest epidermis.


Wu said that it was still too early to put the results into commercial use as the cost of nano-material and recycling was too high for farmers.


"We take it as a stage one success and will continue to upgrade to make it more efficient and economical," he said.


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DHAKA Customized Minnesota Vikings Jersey , Sept. 12 (Xinhua) -- Bangladeshis living and working abroad remitted back 2.53 billion U.S. dollars in the first two months of the current 2017-18 fiscal year, central bank data showed Tuesday.


According to Bangladesh Bank (BB) data, the flow of inward remittances surged about 20 percent year on year to 1,418.58 million U. S. dollars in the last month.


Remittances, one of the key sources of foreign exchange for the impoverished nation, was 1,115.57 million U.S. dollars in July Cheap Minnesota Vikings Jerseys , it showed.


BB officials say the inflow of remittances rose sharply last month as non-resident Bangladeshis sent home more money for their relatives to celebrate Eid al-Adha, one of the largest Muslim festivals, held on Sept. 2.


The amount of remittance from about 10 million Bangladeshis in the last fiscal year spanning from July 2016 to June 2017, stood at about 13 billion U.S. dollars.


Most of the remittances come from Saudi Arabia, the United Arab Emirates, the United States, Kuwait Mackensie Alexander Black Jersey , Britain, Malaysia, Oman, Qatar, Singapore, Bahrain, Italy and Australia Daniel Carlson Black Jersey , according to the bank.


Aftermath of powerful hurricane Irma in Florida


New freight train links E China's Rizhao, Central Asia


Photo exhibition on human rights progress in China held in Geneva


16th anniv. of Sept. 11 terror attacks marked in Washington D.C.


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Pic story: Chinese grape and wine expert


Farmers busy with farm work around Bailu across China


Rural children take free lunch in SW China's Guizhou





Ways to Approach Feeding Your Reef Tank

Author: Richard Gilliland




However, today we know much more about corals. For starters, corals are animals and not plants, as people used to believe earlier. As they are animals, they can follow animalistic eating patterns Jalyn Holmes Black Jersey , which mean selecting their own food and ingesting what they can eat. They are quite capable of following eating trends as most animals do, and hence feeding corals in the right way becomes just a matter of trying and testing out different foods with them.

If you are direct feeding your corals, this is what you must do. You can feed your corals directly if they have visible tentacles and an oral orifice. In that case, they will probably ingest big sized food. Common foods for corals are plankton in frozen form, phytoplankton and even pieces of fish, krill, shrimp Danielle Hunter Black Jersey , squid and clams. If you can spare the time and effort, you can make some food on your own for your corals by referring to coral feeding manuals that are available online.

Of course, it is beneficial to know what species your coral belongs to because different coral species have different eating habits. Corals belonging to families such as Faviidae, Mussidae, Fungidae and Trachyphyllidae can be fed large foods that are available around the house. The popular home aquarium coral, Lobophyllia is of such type. It does not become a problem even if you feed the wrong food to such corals, because foods they cannot eat will be regurgitated from their oral aperture Eric Kendricks Black Jersey , or their tentacles would not reach out at the food at all.

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