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spring crops
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  春季作物
     Extraction of Remote Sensing Information of Spring Crops Under Support of GPS and GIS in Yunnan Province
     GIS、GPS支持下的云南春季作物遥感信息提取
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     The results showed that there were 4 optimal fertilizer practices,in which fertilizer was applied by spreading firstly,then cultivating the soil and irrigating with 3-5cm depth of fertilizer application,and at the tilling stage as the optimal time of fertilizer application for spring crops.
     结果表明4项最佳施肥技术,即追肥以先撒化肥再松土后灌水的方法最好,施肥深度以3~5cm为最佳,施的时间以春季作物分蘖时为最适宜等。
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  “spring crops”译为未确定词的双语例句
     Analysis of the Resources of Light or Temperature and Effects on Physiology or Yield of Early Spring Crops
     攀西地区早春作物光温资源及生理和产量效应分析
短句来源
     Application of Grey Prediction Model GM(0,N) for Yield Trend Forecast of Early Spring Crops in Yunnan Province
     GM(0,N)灰色预测模型在云南小春作物产量预报中的应用
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     Study on the Regularity of Development of Early Spring Crops in Panxi Region
     攀西地区早春作物生育规律研究
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     Studies on the physiological characteristics of early spring crops in the wetland
     攀西地区下湿田早春作物生理特性研究
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     In order to find out the causes of deterioration of peanut seeds during the storage period, and to determine the optimal conditions for storing peanut seeds to maintain seed vigor, we have carried out the following storage experiments with peanut seeds of the variety "shi-xuan 64" ( 筛选64) from the spring crops in the years 1963-1967.1 .Seeds of various moisture contents were stored in sealed bottles and placed under room temperature.
     为要了解春植花生种子在贮藏期间生活力衰退的原因,我们在1962—1967年间用“狮选64”品种春植花生种子进行贮藏生理和技术的研究,结果如下。
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  相似匹配句对
     Spring,S.
     Spring、S.
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     Spring,S.
     Spring,薄叶卷柏S.
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     Effect of Chlorsulfuron on Spring sown Rotational Crops
     绿黄隆对春播轮作作物生长的影响
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     Spring wheat is one of the major crops in Heilongjiang province.
     小麦是黑龙江省主要粮食作物之一。
短句来源
     Expert on Crops
     让土壤里长出希望的农作物专家——记国家科技进步二等奖获得者赵振东
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  spring crops
Thus, herbicide is commonly used to kill rye prior to planting spring crops.
      
Many growers in this 2-million-ha cropland area are increasing the intensity of cropping with spring crops, but most use conventional tillage (CT) for seedbed preparation.
      
Compost applications were shown to supply the available nitrogen for spring crops.
      
Larvae pupate in winter wheat, beginning from mid-June; in spring crops, pupation begins in mid-June.
      
The density of blackgrass plants was decreased, however, especially when spring crops were part of the crop rotation.
      
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In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial...

In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions. The larval population during hibernation period appears to be neither of the random distribution norof the contagious type but agrees with the negative binomial distribution. The population distribution of the injured stems, characterized by the ap-pearance of "dead-hearts" and "white ears" was also studied. The "dead-hearts"popolation in autumn-crop fields conforms with the contagious and the negativebinomial distribution. The distribution of the "white ears" is not at random. It iseither in essential agreement with the contagious or with the negative binomialdistribution, depending on the size of the sampling unit. Based on the form of population distribution the questions of sampling tech-nique, the design of field experiments, the transformation of data for statisticalanalysis, as well as the habits and control of insects have been discussed inrelation to the rice stem borer. Since the populations of larvae and "whiteears" differ significantly from the random distribution, a new technique forsampling has been proposed. It is hoped that this may be useful in the investi-gations on the relative effectiveness of control operations and for census purposes.

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过 小时了解分...

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过 小时了解分布型式成为不必要的,因为极度的不均衡会回复为均衡状态的。

It was found that the degree of potato degeneration was not alluviated by premature harvesting under high temperature. Since the detrimental effect of high temperature could occur at the early stage of tuber formation, potato degeneration could not be due to natural senility, nor to the hastened senility. Lowering the degree of degeneration by early harvesting of Spring crop and Summer planting may be explained mainly on the basis of the unfavorable effect of low temperature during tuber formation on the...

It was found that the degree of potato degeneration was not alluviated by premature harvesting under high temperature. Since the detrimental effect of high temperature could occur at the early stage of tuber formation, potato degeneration could not be due to natural senility, nor to the hastened senility. Lowering the degree of degeneration by early harvesting of Spring crop and Summer planting may be explained mainly on the basis of the unfavorable effect of low temperature during tuber formation on the multiplication and tranelocation of mosaic virus, besides its favorable effect on increasing host resistance. Production of virus-free seed potatoes at distance from the sources of infection, roguing of diseased plants and tubers, control of insect vectors etc are considered to be the most effective control measures. The use of disease tolerant varieties and annual double cropping system are also recommended. When the annual double cropping system is employed, early harvesting of the first crop, late planting of the second crop and selecting healthy plants and tubers should be adopted simultaneously.

1.通过試驗証明生育期长短不同的馬鈴薯在同时收获的条件下,生育期短,块茎未充分成熟的处理,并未減輕退化程度;在芽眼尚不可能萌动的結薯初期,馬鈴薯植株如处于高温条件下也可能加重退化,从而说明馬鈴薯的退化并非由于过度成熟产生自然衰老,亦非因为高温影响了萌动的芽眼,使其衰老所致。 2.早收及夏播的馬鈴薯,除去可能因为低温有利于馬鈴薯抗病力的增強外,更主要的是由于低温条件不利于花叶型病毒的增殖和运轉,降低了新生块茎內病毒浓度的結果。 3.为了从根本上解决馬鈴薯退化問題,应采取以隔离病源,严格汰除病株病薯,防治媒介昆虫,控制传播等措施为中心,生产无毒种薯,并結合选用耐病品种和二季栽培的留种技术,进行综合防治。 4.在推行二季栽培留种技术时,应适当推迟夏播播期,夏播所用种薯必須春季提早收获,并結合选株、选薯等措施。

The agromyzid fly Melanagromyza sojae is one of the most important pests infest ing soybeans. It occurs in all the soybean cultivation areas of Shantung Province and its host plants include more than nine cultivated and wild legume plants. The larvae tunnel into the stems and interrupt the conduction of water and nutrients. Soybean seedlings may thus be killed, the growth of the older plants is retarded, and the crop yields are greatly reduced.This insect has five generations each year in Shantung Province....

The agromyzid fly Melanagromyza sojae is one of the most important pests infest ing soybeans. It occurs in all the soybean cultivation areas of Shantung Province and its host plants include more than nine cultivated and wild legume plants. The larvae tunnel into the stems and interrupt the conduction of water and nutrients. Soybean seedlings may thus be killed, the growth of the older plants is retarded, and the crop yields are greatly reduced.This insect has five generations each year in Shantung Province. The pupae overwinter in the stems of the soybean plants and the adults emerge in next June. The larvae and adults of the first and second generations occur in July and August respectively. The population of the third generation larvae reaches its peak in late August and since then the fourth and fifth generations may overlap. The adults are very active at 6:00 to 8:00 AM and the eggs are laid singularly, mostly on the under surfaces near the midrib bases of upper leaves. The incubation period takes two to three days. The larvae of the first generation infest the spring crop, those of the second and third generations both the spring and summer crops, and those of the third and fourth generations the late crop.Proper treatments of field debris and the plants harbouring overwintering pupae, increasing fertilizers, early sowing and thinning out seedlings in proper times may be effective for controlling this pest. At the peaks of adult occurrence lower dosage sprays with 50% Sumithion, 50% Phoxim, 50% Malathion and 40% Dimethoate can give good results.

豆杆黑潜蝇是大豆的重要害虫之一,在山东省大豆产区均有分布。已知寄主有大豆、赤豆等九种豆科植物。幼虫蛀食髓部及木质部,形成隧道,严重影响养分和水分的传导。危害重时,幼苗枯死,轻时植株生长缓慢,花荚脱落,产量降低。 豆秆黑潜蝇在山东一年发生五代,以蛹过冬。翌年6月上旬末为蝇始发期,下旬中达盛发期。7月上旬为一代幼虫盛期,旬末为一代蝇始发期,下旬中达盛期,旬末至8月上旬中为二代幼虫盛期和二代蝇始发期,中旬达盛期,下旬为三代幼虫盛发期。四、五代重叠发生。成虫活动以6—8时为盛期。卵单粒散产,多产在叶背近基部主脉附近表皮下,以上中部叶着卵较多,卵历期2—3天。一代幼虫主要危害春豆,二、三代相继危害春豆和夏豆,四、五代危害晚播大豆及赤豆等。幼虫老熟后,在豆株茎壁上咬一羽化孔,以便成虫羽化钻出。 防治措施:集中处理越冬寄主,消灭越冬蛹:增施肥料,提早播种,适时间苗等农业措施,均有一定效果。在成虫盛发期用50%杀螟松、50%辛硫磷、50%马拉硫磷和40%乐果乳剂原液超低量喷雾,毒杀当代成虫及下代幼虫效果显著。

 
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