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   化学防治效果 的翻译结果: 查询用时:0.008秒
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化学防治效果
相关语句
  chemical control effect
     population density fell from 38 to 21 per tree, the chemical control effect of the larva reached 83%.
     虫口密度由38头/株下降为21头/株,幼虫化学防治效果达83%。
短句来源
     The granuloses expanded and accumulated in chlorophyll and the number of Osmiumphile bodies increased, all of which increase the disease-resistant ability. 3) The chemical control effect of 3.95% Bilken virusicide WP to TMV. In-room experiments indicated that it can strongly resist TMV;
     3)3.95%病毒必克可湿性粉剂对TMV的化学防治效果:室内生物学测定表明,在接种前施药的效果优于接种后施药,即3.95%病毒必克可湿性粉剂对TMV有较强的抑制效果。
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  “化学防治效果”译为未确定词的双语例句
     Chemical Control of Ragweed
     豚草化学防治效果的研究
短句来源
     A Study on Control Effect of Field Test on Hemiberlesia pitysophila Takagi
     松突圆蚧林间化学防治效果的研究
短句来源
     Advance in good time that is best time of chemical prevention and elimination. Different pest is eliminated with different method.
     为提高化学防治效果 ,在调查研究害虫种类、生物特性、活动规律基础上 ,选择适当杀虫剂 ,采取科学方法进行防治.
短句来源
     The application time,stage,insecticide and method are important factors in chemical control of Phyllotreta striolata(F).
     黄曲条跳甲化学防治现状调查表明,黄曲条跳甲化学防治过程中存在的虫态选择、防治适期、药剂种类和防治方法等4方面的问题,从而对化学防治效果产生重要影响。
短句来源
  相似匹配句对
     (7)Alternative methods to chemical control;
     化学防治的替代方法;
短句来源
     CHEMICAL CONTROL FOR CHINESB DATE PESTS
     枣树害虫化学防治
短句来源
     Chemical Control of Ragweed
     豚草化学防治效果的研究
短句来源
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Grasses from Echinochloa genus are the worst ones in dry farmland

旱田稗属杂草在黑龙江东部垦区近2000万亩耕地中,出现频率为100%。其大量草籽混杂于耕层各个深度,给大面积机械化生产构成潜在威胁。稗草能与作物剧烈争夺养分、水分、温度、光照,每个生产年度均投入大量机械、人力和化学药剂进行防除,影响生产建设,增高粮食成本,加大经济损失。稗属杂草最适防治期是春季的萌动、幼芽、出苗至二叶期。此时对水分、温度、光照最敏感。在郁闭情况下,生长势极弱。机械、化学防治效果均受耕地土壤水分动态限制。制定防除措施必须应用综合手段,以便因时因地应用。

Phomopses rot was a serious disease threatening eggplant producttion all along. The key of control was finding out the infective law. By aid of experiments of casing fruits in the field and inoculation in the laboratory, authors definited that the infective period of the pathogenetic fungus was from the last tenday of June to the last tenday of July and the calyx. Infective part was the calyx. In accordance with this law fungicides should be applied first in the last tenday of June. This control techique...

Phomopses rot was a serious disease threatening eggplant producttion all along. The key of control was finding out the infective law. By aid of experiments of casing fruits in the field and inoculation in the laboratory, authors definited that the infective period of the pathogenetic fungus was from the last tenday of June to the last tenday of July and the calyx. Infective part was the calyx. In accordance with this law fungicides should be applied first in the last tenday of June. This control techique was popularized and applied at 7 experimental plots of both within and without jilin province in 1995, the output increased by an average of 54.9%.

经田间套袋和室内病菌接种茄子果实试验结果表明,吉林省的茄子褐纹病菌侵染适期在6月下旬至7月下旬,先发病部位在花萼。田间化学防治效果显示,第一次喷药适期为6月下旬(即植株第一次现蕾到初花期)。喷药部位重点是花萼处。后每隔7d喷药一次,共喷6~8次。复配药剂褐纹灵防效达86%,其次是扑海因。1995年该项技术已在省内外7个单位推广,平均增产549%。

According to scale insect management methods and the serious harmfulness of scale insect, the characteristics of scale insect, the natural enemy resources and successful examples of scale insect biological control were analyzed. The effects and side effects of chemical control, the functions of biological control in scale insect integrated management, and the necessity and possibility were introduced.Objective evaluation and future expectation about scale insect biological control were given. It was considered...

According to scale insect management methods and the serious harmfulness of scale insect, the characteristics of scale insect, the natural enemy resources and successful examples of scale insect biological control were analyzed. The effects and side effects of chemical control, the functions of biological control in scale insect integrated management, and the necessity and possibility were introduced.Objective evaluation and future expectation about scale insect biological control were given. It was considered that scale insect biological control would become the hot research project and these management methods would have a widely applying future.

根据蚧壳虫危害严重和防治现状, 从蚧壳虫构造特点、天敌资源、生物防治成功事例等方面进行综合分析, 阐明了蚧壳虫化学防治的效果及产生的副作用, 生物防治在蚧壳虫综合防治中的地位和作用, 生物防治的必要性及可能性, 对蚧壳虫生物防治作了客观的评价和展望, 认为蚧壳虫生物防治将成为研究热点, 有广泛的应用前景.

 
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