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Nutrient enrichment from increased anthropogenic activities has been associated with algal blooms and the proliferation of aquatic weeds such as water hyacinth. It is a recent phenomenon in developing nations in the tropical monsoon regions where the link between water quality parameters and water hyacinth infestation is unclear. This study investigates the relationship between phosphorus, nitrogen and chlorophyll-a on the distribution of water hyacinths in Lake Tana located in the tropical highlands of Ethiopia. In this 3,000 km2 lake, water hyacinths have expanded from almost none to 25 km2 ...

金秋九月，沃野千里稻花香。第四个“中国农民丰收节”刚过去不久，留给我们的是喜迎丰收的热闹景象，更是对农业农村现代化的深刻思考。

”　　在浙江大学中国农村发展研究院院长钱文荣看来，近年来我国涉农院校人才培养改革取得了一定成绩，较好地适应了时代变化。据中国农业大学教授、国家乡村振兴研究院副秘书长唐丽霞观察，农林大学原先的学科设置更加偏重于科技型人才和技术性人才培养，对于综合性人才和管理性人才的培养总体较弱。

　　近期，中粮工程科技股份有限公司(以下简称“中粮工科”)正式登陆A股，成为中国资本市场的“粮油装备第一股”，也是中粮集团旗下的又一个子公司成功上市。 　　中粮工科上市首日，股价大涨283.1%，9月16日截至午间休盘，报13.2元/股，涨幅4.35%。二级市场的表现与其连续几年的业绩增长不无关系。但从其招股书来看，...

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