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沂南县常年种植马铃薯10000多亩,年需种量约100万kg。近年来,随着脱毒薯种“东农303”、“克新4号”、“荷兰7号”等品种的引种,其优良性逐步被广大菜农所认识,群众自留薯种越来越少,种植脱毒薯种越来越多,脱毒薯种的需用量由几年前的20万kg增加到现在的50万kg。脱毒种薯由于受产种地收获时雨量、温度影响,加之调运路远,装卸次数多,机械损伤严重,以及调回后管理不
Yinan County perennial planting more than 10,000 acres of potatoes, annual demand of about 1 million kg. In recent years, with the introduction of varieties of virus-free potato varieties such as “Dongnong 303”, “Kexin 4” and “Holland 7”, their goodness is gradually recognized by the majority of vegetable growers, With fewer and fewer potato leaves, more and more detoxification potato varieties are growing. The amount of detoxification potato needs increased from 200,000 kg a few years ago to 500,000 kg now. Virus-free seed potato due to the harvest when harvesting rainfall, temperature, coupled with the road transport, loading and unloading frequency, severe mechanical damage, and after the transfer is not managed