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Official said. In recent years, through the defect variety examination has brought heavy losses to the farmers' case is very common, 'validation certificate' has become part of the seed companies to shirk its responsibility shield. Shihuang example, maize seeds in order to pass validation, only use a tall, late-maturing, twigs lush varieties. But now the needs of the market, able to adapt to mechanized production, it is the low stalk, early maturing maize varieties. 'Farmers do not understand, they put a lot of fertilizers, pesticides and manual labor, why not go back to change still a good income.' Farmers are not too high demands on production, their pursuit of security, stability, the product can be sold for a good price. Because there is no new seeds to meet market demand, they can find some way to bypass the validation. 'Black Seed' phenomenon emerged. Wu Yong to the correspondents introduced the ubiquitous 'bypass approach.' The first one is 'perpetrating a fraud.' Some farmers and seed dealers, when checking a change in packaging, the packaging bag of seed into the seed certification through. Because DNA testing needs to take to do a very long period, the general law enforcement agencies do not have the DNA test equipment, it became farmers and traders bypass method. The second measure is Forced. For example, there was a variety, did not pass the validation before been planted on the million mu. 'Finally, there is no official way, farmers Forced approval by department approval.' Wu Yong said. For the registration system adopted by some countries, Wu Yong said: 'It is good for big business, but for small businesses is disaster because if determined by the market, small companies have introduced products, so consumers do not trust. , business is small, limited ability to pay, especially in this part of the dealer, small business products certainly will not sell, 'Lili Qiu said:'.. the world's major countries, the United States is a registration system, companies do their own tests; Germany and France is similar to us, strictly censored. in the long run, we want to transition the registration system, but gradual. the draft has a green channel design, this is the purpose. ' Won over China State Construction Engineering Luban Tianfu Interchange, cracks in the bottom of the deck, the solution is to use glue 'paste