秧好半年粮

现代育苗移栽法获得秧好半年粮在于：1．充分利用耕地时空；2．节省水肥和劳力投入；3．防除风雨袭击和生物灾害的侵犯；4．苗期抗逆锻炼与生理调节使得终身受益；5．秧苗培育与机具配合简化移栽人工操作。     

干旱胁迫对3种狼尾草种子萌发和幼苗生长的影响

采用聚乙二醇(PEG-6000)模拟干旱胁迫和盆栽控水方法,研究了干旱胁迫对3种狼尾草种子萌发及苗期生长的影响.结果表明:低浓度的PEG(5%)胁迫会提高狼尾草种子的发芽率和发芽指数,当PEG体积分数大于10%时,3种狼尾草的种子发芽率随PEG浓度的增加显著下降(P<0.05),但根冠比增加;在高浓度PEG胁迫下,小穗狼尾草种子相对发芽指数大于羽绒狼尾草和巨人狼尾草,其抗旱半致死浓度和极限浓度高于巨人狼尾草;苗期盆栽控水8 d后,巨人狼尾草叶片的旱害级别高于羽绒狼尾草和小穗狼尾草,小穗狼尾草的叶片相对含水量、脯氨酸含量均高于巨人狼尾草,丙二醛含量低于巨人狼尾草.研究发现,提高苗期狼尾草叶片含水量和脯氨酸积累量有利于增强其抗旱性;小穗狼尾草的苗期抗旱性结果和种子的抗渗透胁迫表现一致,并证实其抗旱性最强.     

广东省农业害虫综合治理重点实验室

<正>广东省农业害虫综合治理重点实验室(简称重点实验室)由广东省政府于1992年立项组建,依托于广东省昆虫研究所。重点实验室面向广东省现代农林产业和生态文明建设的发展需求,开展农、林、卫生和花卉重要害虫的综合治理研究,研制环境友好型病虫害防控制剂,攻克绿色食品生产和环境护理过程中的关键技术问题,为广东省经济社会的可持续发展服务;成为具有华南地区特色和学科优     

秸秆还田的效果、问题与对策

农作物秸秆还田是改善土壤理化性质、增加微生物和酶活性、促进作物增产的有效措施,也是农作物秸秆资源化利用的一种重要方式,但秸秆还田也可能会导致作物出苗率降低、加重作物病虫害发生、引起土壤重金属等有毒有害物质积累等负面影响。目前秸秆以直接还田为主,亦有少量通过堆沤、垫圈等方式间接还田。秸秆在土壤中的腐解速度及还田效果主要取决于秸秆的化学组成特别是C/N、土壤微生物状况、土壤温度及水分含量等。下一步,必须强化秸秆还田方法、快速腐解条件及制剂、对下季作物病害影响及防控、农机农艺配套、缓解全球变化能力等研究,完善相关技术与方法,促进秸秆还田快速推广应用。     

Brief Biography of Dr. Yong-yue LU

1. Contact Information Department of Entomology, South China Agricultural University, No. 483 Wushan Road, Tianhe, Guangzhou, Guangdong 510642, China Phone ＆ Fax：＋86-20-8528 3568 E-mail： luyongyue@scau.edu.cn 2. Present Rank Professor/Deputy Director, Red Imported Fire Ant Research Center South China Agricultural University 3. Academic Qualification Ph.D. （Entomology）, South China Agricultural University, 20014. Research Interests Dr. Lu＇s main interest lies in the insect population ecology, integrated pest management, and invasion biology. He is committed to researching the biological and ecological basis for insect pest control, developing the correspongding management strategy and technology, and implementing those strategy and technology in pest management practice. Significant progress has been achieved in the biology, ecology, monitoring, prevention and control theory and technology for red imported fire ant （So/eno, osis/nvicta）, oriental fruit fly （Bactrocera dorsal/s）, invasive cotton mealybug （Phenacoccus solenopsis）, invasive palm pests, banana pests, etc. He has been one of the undertaker of more than 30 projects from the state, provinces and ministries, and also finished the other about 50 projects. He participated in and gained the 11 science and technology achievements, 7 patents, 12 country/industry/local standards. More than 310 papers （section, chapter） including 34 SCI papers were published. He has received 1 National Science and Technology Progress Prize, 4 Science and Technology Prize of Guangdong Province （2 first class, 1 second class, and 1 third class）, 1 Agricultural Science and Technology Prize of China （third class）, and 3 Agricultural Technology Promotion Prize of Guangdong （2 first class and 1 second class）. In September 28, 2004, Professor Ling Zeng, Wei-qiu Zhang and he discovered the invasion and infestation of the important alien pest--red imported fire ant in mainland China. And from then on, a series works on the fire ant invasion bio     

美国SECURE规则评析及其对中国的启示

美国农业部动植物卫生检疫局在最近一次生物技术法规的修订中,将原有的关于监管利用基因工程开发的生物体的进口、州际移动和环境释放一章的规定进行了较大幅度的修改,并将之命名为SECURE规则。这一规则采用了新的安全评价方法,将评价的重心从原来的生产方法转移到了产品的特性上。此外,新的规则还通过豁免程序和监管状态审查等程序的设立,进一步简化了监管方式。但SECURE规则也存在着部门立法之间的协调不足、配套机制建设不完善等问题,可能给新规则的实施带来一定的挑战。我国作为转基因技术大国,在农业生物技术及其产品监管的立法上可以批判性地借鉴美国最新的立法实践,为我国生物技术产业的发展提供法治保障。