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粪金龟
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  “粪金龟”译为未确定词的双语例句
     ECONOMIC EVALUATION FOR THE STUDY ON A NEW PEST IN DESERT STEPPE——LETHRUS APTERUS
     荒漠草原新害虫——无翅大头粪金龟研究的经济评价
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     Dung Bettle Ecology
     《粪金龟生态学》
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     Using of the theory and methods of economic evalution for agriculture science developed by Agricultural Economic Institute of Chinese Academy of Agricultural Science, evaluated a project on a new pest in desert steppe: Lethrus apterus in 6667 ha heavily affected grassland.
     本文利用中国农科院农业经济研究所研究的农业科学研究经济评价的理论和方法,对荒漠草原新害虫——无翅大头粪金龟(Lethrus anterus)研究成果在6667公顷严重为害的草地上进行防治示范推广的经济效益做了评价。
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     CHEMICAL CONTROL OF LETHRUS APTERUS IN DESERT STEPPE
     荒漠草原新害虫——无翅大头粪金龟药剂防治试验研究
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     A STUDY ON ECOLOGICAL CHARACTERISTICS OF LETHRUS APTERRUS-A PEST ON THE EREMO STEPPE
     荒漠草原区害虫——无翅大头粪金龟的生态特征研究
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  相似匹配句对
     Dung Bettle Ecology
     《金龟生态学》
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     Study on the Biological Properties of Lethrus apterus
     无翅大头金龟生物学特性研究
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     (3) fecal pellet.
     ( 3)鱼
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     Design of a Centrifugal Machine for the Separation of Solid from Liquid in Dung
     水离心分离机的研制
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     STUDIES ON SOPHROPS LATA FREY
     宽索鳃金龟的研究
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  dung beetles
Intra- and interspecific competition were greater for flies in summer dung than in spring dung, and intra-and interspecific competition were greater for dung beetles in spring dung than in summer dung.
      
These data support field observations that dung beetles cause higher fly mortality in summer dung than spring dung.
      
The results confirm that the fluid component of dung is the major source of nutrition for adult dung beetles.
      
The amount of cattle dung buried in the field by afrotropical dung beetles, mainlyDiastellopalpus quinquedens Bates, was not affected by previous subcutaneous injection of the cattle with 0.2 mg kg-1 ivermectin.
      
Adult dung beetles (Onthophagus acuminatus) exhibit continuous variation in body size resulting from differential nutritional conditions experienced during larval development.
      
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Using of the theory and methods of economic evalution for agriculture science developed by Agricultural Economic Institute of Chinese Academy of Agricultural Science, evaluated a project on a new pest in desert steppe: Lethrus apterus in 6667 ha heavily affected grassland. By analysing the economic indexes, it is showed that the annual loss is reduced by 15730000 kg fresh grass which is valued 1150000 yuan. The increased profit rate of scientific and technological expenses is 10.85 yuan/yuan. The increased profit...

Using of the theory and methods of economic evalution for agriculture science developed by Agricultural Economic Institute of Chinese Academy of Agricultural Science, evaluated a project on a new pest in desert steppe: Lethrus apterus in 6667 ha heavily affected grassland. By analysing the economic indexes, it is showed that the annual loss is reduced by 15730000 kg fresh grass which is valued 1150000 yuan. The increased profit rate of scientific and technological expenses is 10.85 yuan/yuan. The increased profit rate of scientific research expenses is 86.25 yuan/yuan.

本文利用中国农科院农业经济研究所研究的农业科学研究经济评价的理论和方法,对荒漠草原新害虫——无翅大头粪金龟(Lethrus anterus)研究成果在6667公顷严重为害的草地上进行防治示范推广的经济效益做了评价。根据各项经济指标分析,该成果的年牧草损失减少总量为15730吨鲜草;年经济损失减少总额为1150000元;科技费用新增收益率为10.85元/元;科研费用新增收益率为86.25元/元。

On the basis of the research of biological and ecological characteristics,the current paper reported the chemical control of Lethrus apterus.Chemicals with various type and different concentrations have been test- ed.The results showed that the one with the best control effect and lower cost was Roger dilution which is diluted by 40% Roger emulsion in the ratio of 1 to 1500 or 2000.It was necessary to apply the chemical from early May to early July before the serious attack of the pest(in Shandan the corresponding...

On the basis of the research of biological and ecological characteristics,the current paper reported the chemical control of Lethrus apterus.Chemicals with various type and different concentrations have been test- ed.The results showed that the one with the best control effect and lower cost was Roger dilution which is diluted by 40% Roger emulsion in the ratio of 1 to 1500 or 2000.It was necessary to apply the chemical from early May to early July before the serious attack of the pest(in Shandan the corresponding time is from 5 to 10 of June).It was 0.4 head/m pests that had been set as the application index whilst the accepta- bale forage loss was 8.08%.The research achivement has been extended to 6667 ha of grassland.It has been estimated that the controlling effect reaches 92.4%.The annual loss was reduced by 15730000 kg fresh grass which is valued 1150000 yuan.The increased profit rate of scientific and technological expenses was 10.85 yuan/yuan.

本文是在对荒漠草原新害虫——无翅大头粪金龟(Lethrus apterus)生物学特性和生态特征研究的基础上,进行的药剂防治试验研究报告。在不同浓度的对比试验中,筛选出1:1500—2000倍稀释的40%乐果乳油防虫效果好、费用低;提出防治时期为5月底到7月初,而最适防治时间是为害盛期前夕,即山丹地区为6月5日~10日;确定防治指标为0.4头/米~2,而经济允许损失水平为8.08%。此研究成果经6667公顷草地上示范推广,防虫效果达92.4%,年减少牧草损失为15730吨鲜草,取得了良好的经济效益。

Lethrus apterus is a phytophagous insect which distributes on the eremo steppe and steppeeremo grasslands. Its distribution on typicai grassland — type is always aggregated, and the threshold of distribution is narrow and small, its eating — patterns tend to be specificity. The weightier the soil texture (or soil unit)and the lower the soil moisture content,the higher the insect density and the more serious damage will be.

无翅大头粪金龟(Lethrus apterus)是分布在荒漠草原和草原化荒漠上的植食性害虫,在典型草地上呈聚集分布,阈限狭窄,食性趋向专化,在土壤质地越重,水分含量越低的地方,虫口密度越高,因而危害越重。

 
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