A study on the optimal fermentation process of producing fluid fertility containing biotechnology fulvic acid from jowar straws juice 甜高粱秸秆汁发酵生化黄腐酸液肥工艺条件的研究
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In the demonstration section of the paper , aiming at the main plantation crops and variety in shanxi and each region in shanxi , some research has been done , including determining and analyzing scale advantage , efficiency advantage and aggregated advantage of the main grain crops ( including wheat , corn , millet , soja , jowar and tubers ) and main cash crops ( including oil - bearing crops , cotton , fiber crops , beetroots , tobacco , medicinal materials , vegetables and melon , fruit ) in shanxi , determining and analyzing scale advantage , efficiency advantage , benefit advantage and aggregated advantage of the main plantation variety ( including wheat , corn , millet , soja , jowar , cotton , beetroots , rapeseed , flue - cured tobacco and apple ) in shanxi , determining and analyzing the advantage in each region in shanxi . the research shows that some crops and variety in shanxi own advantage , they are millet , jowar , fruit ( apple ) , beetroots and medicinal materials . meanwhile , the main crops regions owning advantage and combination of advantage crops in each region in shanxi have been gained 在文章的实证研究部分，本文以山西省及各地区的主要种植业作物和品种为研究对象，做了以下几方面的研究：测定和分析了山西省主要的粮食作物(小麦、玉米、谷子、大豆、高粱和薯类)和主要经济作物(油料、棉花、麻类、甜菜、烟叶、药材、蔬菜、瓜类和水果)的规模优势、效率优势和综合优势并与全国主产区进行了比较；对山西省主要的种植业品种(小麦、玉米、谷子、大豆、高梁、棉花、油菜籽、甜菜、烤烟和苹果)的规模优势、效率优势、效益优势和综合优势进行了测定和分析；测定和分析了山西省主要种植业作物在各地区的竞争优势，研究表明山西省具有比较优势的作物主要有谷子、高梁、水果(苹果) 、甜菜和药材，同时得出山西省主要作物优势产区和各地区优势作物组合。
