检索结果-南通市图书馆

Occurrence of Diaphorina citri in Guangxi and Integrated control technique

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Plant Diseases and Pests 2023年第1期14卷 27-30页

作者： Jimin LIU Guoguo LI Nina WANG Tiejun DENG Maofu LI Zenggui LUO Qingping HE Huihong LIAO Shaolong WEI Zhikang ZENG Qichun HUANG Guangxi Academy of Agricultural Sciences Nanning 530007China Huazhong Agricultural University Wuhan 430070China Key Laboratory of Green Prevention and control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests Nanning 530007China Guangxi Nanning Chenshun Pest control Co.Ltd. Nanning 530001China Guangxi Qifeng Juzhou Ecological Agriculture Co. Ltd.Nanning 530199China Qinbei District Agricultural Technology Extension Station Qinzhou 535000China

In order to promote the healthy and sustainable development of citrus industry in Guangxi and reduce the harm of Diaphorina citri and citrus Huanglongbing on citrus industry,the paper summarizes the occurrence of *** in Guangxi,and put forward comprehensive control technique,so as to provide the reference for guiding prevention and control of major pests in citrus industry.

关键词： Diaphorina citri Citrus Huanglongbing Occurrence control technique

Occurrence Regularity and Integrated control technique of Grubs in Peanut Producing Areas of Linyi City

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Diseases and Pests 2022年第6期13卷 6-7页

作者： Hongjie TANG Jiejie ZHANG Qingfu DU Linyi Academy of Agricultural Sciences Linyi 276012China

In order to effectively control the harm of grubs in peanut field, Linyi Comprehensive Experimental Station of Shandong Peanut Industry Research System conducted an investigation and study on the occurrence regularity and control techniques of peanut grubs, and summarized the occurrence regularity and causes of the outbreak of grubs in peanut field. Moreover, effective and sustainable control measures are proposed.

关键词： Linyi Peanut Grubs Occurrence regularity control technique

control techniqueS FOR DIGESTION IN BAYER PROCESS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2000年第6期13卷 1174-1178页

作者： G.Y.Gan L.Z.Wang Pingguo Aluminum Company Pingguo 531400China

The control techniques for indirect heating digestion in Bayer process of alumina production were researched and developed. They include controlling chemical composition of slurry to be digested and controlling digestion status and energy consumption. Very good performances and technical and technical and economical figures for digestion process have been obtained by carefully applying these comprehensive control techniques in Pingguo alumina refinery.

关键词： control technique digestion Bayer process

A review: Panax ginseng diseases and the control techniques

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Traditional Medicines 2022年第4期17卷 186-191页

作者： Mo Yao Liwen Chen Luming Pan Haonan Yu Yuhang Liu Miao Wang Yu Chen School of Life Science and Biopharmaceutics Shenyang Pharmaceutical UniversityShenyang 110016China

Panax ginseng(***)is a famous traditional medical plant,with both the medical and economic *** China,the cultivation of *** is a major agricultural ***,the yield and quality have declined in recent years due to various *** review summarized the common diseases of *** and the controlling techniques,aiming to enhance the cultivation of *** and ensure the sustainable development of *** industry.

关键词： Panax ginseng disease control technique

Study on control techniques of Virus Diseases in Facility Cherry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2023年第1期12卷 19-20,30页

作者： Jing SHU Suhui LIU Aihua ZHANG Jinquan WANG Xinyu LIAN Shandong Agriculture and Engineering University Jinan 250100China Gaotang Forestry Comprehensive Service Center Gaotang 252800China Shandong Agricultural University Tai an 271000China

The diseases of sweet cherry caused by viruses and viroids have occurred in the main cherry producing areas of China and are increasing year by year, which has become an important factor affecting the yield and quality of sweet cherry. For this reason, this paper elaborated the prevention and countermeasures of virus diseases from six aspects, including soil treatment, cultivation of disease-free seedlings, prevention of disease and pest damage, reasonable pruning, water management, and treatment of virus diseases, in order to provide technical guidance for the disease resistance, high quality and high yield of facility cherry, as well as information reference for the further improvement of the technical system of virus disease prevention and cultivation of facility cherry.

关键词： Cherry Facility Virus disease control technique

Inclusion control study in high aluminum steel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2018年第8期25卷 796-802页

作者： Bo-wen Peng Fang-jie Li Shao-bo Zheng Hui-gai Li Qi-jie Zhai State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy School of Materials Science and Engineering Shanghai UniversityShanghai 200072 China

In order to reduce the negative effect of gross Al-rich inclusions on high aluminum steel, both thermodynamic calculations and designed deoxidization experiments were performed in condition of different silicon and aluminum deoxidization sequences. Thermodynamic calculations demonstrated that the complex inclusions with low melting point （harmless inclusions） are more favorable to be formed in condition that the melt was deoxidized using ferrosilicon first and then pure aluminum （Si/A1 deoxidization） than that deoxidized using pure aluminum first and then ferrosilicon （AI/Si deoxidization）. Al-rich inclusion decreases 83% from A1/Si deoxidization to Si/A1 deoxidization. The experimental results showed that the total quantity of inclusions decreases by 24% and the proportion of harmless inclusions is doubled when comparing Si/Al deoxidization with Al/Si deoxidization. The morphology of complex inclusion tends to be spherical, and the mean size is less than 5μm in condition of Si/Al deoxidization. The formation mechanism of harmless inclusions was discussed, and it is believed that the inclusions can be controlled reasonably in high aluminum steel using Si/Al deoxidization.

关键词： Harmless inclusion control technique High aluminum steel Deoxidization Thermodynamic calculation

Emission characteristics and control technology of heavy metals during collaborative treatment of municipal solid waste incineration fly ash in iron ore sintering process

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2024年第11期31卷 2655-2663页

作者： Xiao-hui Fan Zhi-an Zhou Bin-bin Huang Zhi-yun Ji Min Gan Zeng-qing Sun Xu-ling Chen Xiao-xian Huang Guo-jing Wang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Hubei Provincial Key Laboratory of Regional Development and Environmental Response Department of Environmental EngineeringHubei UniversityWuhan430062HubeiChina

The municipal solid waste incineration fly ash (MSWI-FA) contains a large amount of heavy metals, and the process of iron ore sintering and treating fly ash needs to pay attention to the migration characteristics of heavy metals. The impact of the application of MSWI-FA in the sintering process on the emission law of heavy metals in the collaborative treatment process was studied, and corresponding control technologies were proposed. The results showed that the direct addition of water washing fly ash (WM-FA) powder resulted in varying degrees of increase in heavy metal elements in the sinter. As the amount of WM-FA added increases, the content of heavy metal elements correspondingly increases, and an appropriate amount of WM-FA added is 0.5%–1.0%. The migration mechanism of heavy metals during the sintering treatment of WM-FA was clarified. Heavy metals are mainly removed through direct and indirect chlorination reactions, and Cu and Cr can react with SiO_(2) and Fe_(2)O_(3) in the sintered material to solidify in the sinter. Corresponding control techniques have been proposed to reduce the heavy metal elements in WM-FA through the pre-treatment of WM-FA. When the WM-FA was fed in the middle and lower layers of the sintered material, the high temperature of the lower layer was utilized to promote the removal of heavy metals. The Ni element content has decreased from 130 to 90 mg kg^(−1), and the Cd removal rate has increased by 23%. The removal rates of Cd and Cr elements increase by 2.4 and 5.5 times, respectively. There is no significant change in sintering indexes.

关键词： control technique Emission characteristics Heavy metal Iron ore sintering Municipal solid waste incineration fly ash

Damage Characteristics and control techniques of Longhorn Beetles in Coffee Garden

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Diseases and Pests 2022年第5期13卷 14-16页

作者： Sitong LI Qiongyin LIANG Chengxiang XU Life Sciences College of Zhaoqing University Zhaoqing 526061China

Coffee longhorn beetles are major trunk-boring pests of coffee trees,which are widely distributed in most areas of *** biological characteristics,damage characteristics,life history and control techniques of two speci... 详细信息

关键词： Coffee garden Coffee longhorn beetles Biological characteristics Damage characteristics control technique

Soil erosion and management on the Loess Plateau

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2001年第1期11卷 53-70页

作者： CAI Qiang-guo (Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China) CAS Institute of Geographic Sciences and Natural Resources Research Beijing China (GRID:grid.9227.e) (ISNI:***)

The Loess Plateau is well known to the world for its intense soil erosion. The root cause for river sedimentation of Yellow River (Huanghe) and its resultant “hanging river” in certain section is soil and water loss on the Loess Plateau. The Loess Plateau has a long cultivation history, hence population growth, vegetation degeneration and plugging constitute the chief reason for serious soil and water loss on Loess Plateau. This paper analyses several successful cases and failures in soil conservation, presents practical soil conservation technique and related benefit analysis, and discusses some effective methods adopted in China in soil erosion control, research directions and future perspectives on Loess Plateau.

关键词： soil erosion control technique management Loess Plateau