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and pesticide
相关语句
  农药
     (2)Rates of smoking,drinking and pesticide poisoning are all higher than those in 1993(20.43%,21.89%,P=0. 016;12.25%,18.49%,P<0. 001;1. 94%,4.94%,P<0. 001) .
     (2)2001年15岁以上农村居民的吸烟率、饮酒率和急性生产性农药中毒发生率均高于1993年水平(20.43%,21.89%,P=0.016;12.25%,18.49%,P<0.001;1.94%,4.94%,P<0.001);
短句来源
     In 1996, the application rates of chemical fertilizer (nutrients), N and pesticide (commodity) were 851.74 kg·hm-2, 618.99 kg·hm-2 and 7.59 kg·hm-2 respectively, while in 2003, they were 1 233.93 kg·hm-2, 718.96 kg·hm-2 and 12.39 kg·hm-2 respectively.
     其中2003年的化肥单位耕地面积施用量1233.93kg·hm-2,纯N施用量718.96kg·hm-2,农药(商品量)12.39kg·hm-2,粮食产量14690.40kg·hm-2,分别比1996年增长了44.87%、16.15%、63.24%、3.89%。
短句来源
     The application of chemical fertilizer was 342kg/ha and pesticide was 14.3kg/ha that far above the average in developed country;
     杭州市的单位面积化肥施用量为342kg/ha,农药施用量为14.3kg/ha,都远高于发达国家平均水平。
短句来源
     Analysis on the contents of harmful components and pesticide residues of vegetables in Lanzhou city
     兰州市蔬菜有害成分和农药残留含量分析
短句来源
     Genetic engineering and pesticide
     基因工程与农药
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  “and pesticide”译为未确定词的双语例句
     (3) Weed and pest can be significantly controlled in the system so that it could reduce or limit the application of herbicide and pesticide which resulted in 60.19 kg N/hm~2 and 8.0 kg P/hm~2 of non-point source pollution load.
     同时能有效控制田间杂草,减少梨园病虫害的发生,且可消减非点源N污染负荷60.19kg/hm2,非点源P污染负荷8.0kg/hm2。
短句来源
     Based on findings of the investigation of these problems, a new technical scheme named integrated management of water and fertilizer, was recommended and tested. Results of the experiment indicated that the new technology saved water by 3482 ~ 4737 m3/hm2, fertilizer by 19.4% ~ 39.0%, and pesticide by 48.3%, thus increasing the benefit by 18000 ~ 25000 yuan/hm2. Besides, it had also created remarkable ecological and societal benefits.
     本文通过对问题的调查,提出了水肥一体化技术设计方案,并进行了试验,节水量3482~4737m3/hm2,节肥率19.4%~39.0%,节药率48.3%,增加效益18000~25000元/hm2,并有显著生态、社会效益。
短句来源
     Studies on the Biology and Pesticide Resistance Mechanism of Tyrophagus Putrescentiae(Schrank)
     腐食酷螨Tyrophagus putrescentiae(Schrank)生物学及抗药性机理研究
短句来源
     Using single pesticide is 56 13% and pesticide mixtures 43 8%.
     单一用药占5 6 13% ,混配用药占 43 8%。
短句来源
     The result shows that the efficiency of frame support automatic micro-sprinkler irrigation in use of water,fertilizer and pesticide increased 33%,19% and 22.9%,which are better than treatment 1 in the comparison experiment.
     通过高架式自动化微喷灌(包括施药和施肥)和传统灌溉(传统施药和施肥)方式比较试验表明,高架式自动化微喷灌在水、肥、药有效利用方面均优于传统灌溉,分别提高33%、19%和22.9%;
短句来源
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  相似匹配句对
     Microbial Pesticide
     微生物源农药
短句来源
     Pesticide and Environment
     农药与环境
短句来源
     in pesticide wastewater.
     可见该工艺路线能有效的解决山梨酸废水的达标排放问题。
短句来源
     Pesticide and Pesticide Chemistry
     农药与农药化学
短句来源
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  and pesticide
Print media coverage of risk-risk tradeoffs associated with West Nile encephalitis and pesticide spraying
      
Balancing the risks: Vector control and pesticide use in response to emerging illness
      
Synthesis and pesticide activity of the organophosphorus derivatives of antimycin A
      
Research report: Susto and pesticide poisoning among Florida farmworkers
      
Food and water quality and pesticide and solvent usage are increasingly topics raised by women and men contemplating pregnancy.
      
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Based on the results of our experiments, this paper discussed and analized the theory, technics and effects of plant infusion which can be widely applied in agricultural and forest practices, especially useful in promoting the growth of trees and protecting against some diseases and insects. Most practices demonstrate that the improved technics of plant infusion greatly increase the effectively utilizing rate of chemical fertilizers and pesticides, up to almost 100%.

根据我们实验结果,本文讨论和分析了植物输液的理论、技术和效果,植物输液在农林生产实践上广泛应用,特别是在促进树木生长和病虫害防治上非常有用。实践证明,经改进后的植物输液技术大大地提高了化肥和农药的有效利用率,可高达100%。

Since 1976 we have been involved in the investigation of the barren or almost barren litchi fruit trees at proper ages. There are many reasons more than those enumerated below Firstly the vegetative and reproductive growth do not work in a synchronized way, with too many flushes or untimely flushes appear in the same year, thas destroying the amount of nutrition level and making the reproduction not favorable Secondly when the trees are at bearing ages the racemes are long with large amounts of male flowers...

Since 1976 we have been involved in the investigation of the barren or almost barren litchi fruit trees at proper ages. There are many reasons more than those enumerated below Firstly the vegetative and reproductive growth do not work in a synchronized way, with too many flushes or untimely flushes appear in the same year, thas destroying the amount of nutrition level and making the reproduction not favorable Secondly when the trees are at bearing ages the racemes are long with large amounts of male flowers and fow female flowers. The blooming time of female flowers, does not last long and blooming appears often in cloudy, rainy, and cold weather As a result, pollination and fertilization are poor. Thirdly the low nutrition level as well as pests and diseases also cause serious abscission of flowers and fruits. Measures should be taken so as to insure fruit bearing and steady good yields. First, manage the orchard soils well in order to promote tree growth and development. Second, train the ideal short or fruit branches, cheek the winter flushes and develop the autumn branches. For cvs early red and lantek, the good bearing fruit branches should appear n he seasons of Half Autumn to Cold dews, while cv dark leaf should appea in Half Autumn. Chemical plant growth substances such as 0 3-0 5% sodium pentachlorophenol can be employed before Winter Set season and ethrel a 800-1000 ppm+MH 750-1000 ppm before Slight cold season to check the winter flushes. Hand picking or growth retarding chemicals such as PCPna, ethrel, and MH used to check the racemes give good results n changing the flowering habits, increasing the number of female flowers, as well as flowers of both sexes coming in time for pollination. Such measures often delay flowering. In a word, we must restrain or regulate the flowering time of litchi just to meet the fine weather with plenty of sunshine. Good environmental conditions are very important for the poll ination and fertilization. Aside from manuring, chemicals such as 2 4 D NAA, triacontanol etc. together with fungicides and pesticides are very useful in improving fruit set.

1976年以来,我们从调查观察入手,探讨出适龄荔枝树不结果或少结果的主要原因是:树体营养生长与生殖生长不协调,一年多次抽梢,梢期混乱,造成营养水平低,不利于生殖生长,适龄荔枝树花期长,雌花期短,花穗长,花量多,雄花和雄能花花量多,而雌花比例少,雌雄花相接时间短,相遇次数少、时间短,加上雌花蛊开期常遇低温阴雨天气,授粉受精不良;由于授粉条件差,营养水平低及病虫害等影响,落花落果严重。经过几年来的试验研究,认为要促进适龄荔枝树稳产高产,主要应采取以下措施:加强果园土壤管理,增强树势。促秋梢、控冬梢,培养理想的结果母枝。早虹、兰竹品种理想的结果母枝是秋分—寒露梢,乌叶品种是秋分梢。采用人工或于立冬前后用0.3~0.5%五氯酚钠,小寒前后用800~1000ppm乙烯利+750~1000ppm青鲜素喷杀控冬梢,使在冬梢葫芦节上抽晚短花穗。手工摘长花穗、截短长花穗、早长花穗打顶和五氯酚钠、乙烯利、青鲜素等化学药剂控穗,改变其不利开花习性。增加雌花比例和雌雄花相遇时间。喷药浓度和时间应因不同地区、品种、树势和物候期而异。在再抽侧穗临界期前期杀穗,可大幅度推迟花期,在中、后期应改用疏穗或疏蕾,可小幅度推迟花期或提前花期。根据...

1976年以来,我们从调查观察入手,探讨出适龄荔枝树不结果或少结果的主要原因是:树体营养生长与生殖生长不协调,一年多次抽梢,梢期混乱,造成营养水平低,不利于生殖生长,适龄荔枝树花期长,雌花期短,花穗长,花量多,雄花和雄能花花量多,而雌花比例少,雌雄花相接时间短,相遇次数少、时间短,加上雌花蛊开期常遇低温阴雨天气,授粉受精不良;由于授粉条件差,营养水平低及病虫害等影响,落花落果严重。经过几年来的试验研究,认为要促进适龄荔枝树稳产高产,主要应采取以下措施:加强果园土壤管理,增强树势。促秋梢、控冬梢,培养理想的结果母枝。早虹、兰竹品种理想的结果母枝是秋分—寒露梢,乌叶品种是秋分梢。采用人工或于立冬前后用0.3~0.5%五氯酚钠,小寒前后用800~1000ppm乙烯利+750~1000ppm青鲜素喷杀控冬梢,使在冬梢葫芦节上抽晚短花穗。手工摘长花穗、截短长花穗、早长花穗打顶和五氯酚钠、乙烯利、青鲜素等化学药剂控穗,改变其不利开花习性。增加雌花比例和雌雄花相遇时间。喷药浓度和时间应因不同地区、品种、树势和物候期而异。在再抽侧穗临界期前期杀穗,可大幅度推迟花期,在中、后期应改用疏穗或疏蕾,可小幅度推迟花期或提前花期。根据气象资料测算,调控荔枝花期,趋利避害,把雌花直开期控制在天气晴好、日照充足的最佳时段里,有利于授粉受精。同时应及时合理施肥、采用人工辅助授粉,用2,4-D、萘乙酸、增产灵、防落素、三十烷醇、保果灵等生产调节剂单独或配合肥料、农药喷射,保花保果效果明显,座果率显著提高。

Studies on zoobenthos in the Xiang Jiang River were carried out for five times between July, 1980 and December, 1981. Artificial substrate was used for sampling in all stations in the river, especially the heavily polluted area between Zhuzhou and Xiangtan.Based on the data obtained from the survey, Shannon diversity index was calculatedand used for the biological evaluation of water quality of the river. Relationship between the number of zoobenthos and the chemical content was also calculated in some stations.Results...

Studies on zoobenthos in the Xiang Jiang River were carried out for five times between July, 1980 and December, 1981. Artificial substrate was used for sampling in all stations in the river, especially the heavily polluted area between Zhuzhou and Xiangtan.Based on the data obtained from the survey, Shannon diversity index was calculatedand used for the biological evaluation of water quality of the river. Relationship between the number of zoobenthos and the chemical content was also calculated in some stations.Results show that the mayfly naiads are more sensitive to heavy metals and pesticides.They may be used as monitors for water pollution in the river. The percentage of ephemeropterans and trichopterans as compared with that of the other aquatic insects used for water monitoring is also given in this paper.Nearly in all stations the diversity indices were more than 2.11, except the Xiawan station, where the index was only 0—0.73.

湘江底栖动物种类较丰富,而上游种类尤多,生物多样性明显。中、下游某些江段因污染等因素影响,多样性有差异。shannon多样性指数反映出了这些变化。上游江段属于清洁水体,中、下游多数江段属于轻污染,少数江段为中污染,而霞湾港江段为重污染。进行了水和底泥中化学毒物的含量与生物主要种类的数量变化的相关分析。

 
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