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time of sowing
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  播期
     The result of analysis of the model showed that the effect of the time of sowing(x_1) and the interaction effect of density and nitrogenous fertilizer (x_2x_2)were all statistically significant.
     两因子交互效应为:密度与氮肥互作(x_2x_3)>播期与氮肥互作(x_1x_3)>播期与密度互作(x_1x_2)。 其中,播期(x_1)密度与氮肥互作(x_2x_3)对病指的影响均达0.05显著水平。
短句来源
     Effects of Time of Sowing and Harvesting on Yield and Quality of Arctium Lappa L
     播期与收获期对牛蒡产量与品质的影响
短句来源
     Studies on Suitable Planting Density and Time of Sowing of Potato on Dry Land in Houshan Area,Inner Monglia
     内蒙古后山旱农区马铃薯适宜播种密度和播期研究
短句来源
     This paper deals systematically with the life history,development stages,habits and characteris-tics of the rape flea beetle,Psylliodes punctifrons Baly and the relationships between its population densi-ty and time Of sowing, ways of cultivation,types and varieties of rape, and soil characters.
     通过室内饲养和田间调查,较系统地研究了油菜蚤跳的生活史,各虫态发育历期,成、幼虫习性及发生与油菜播期、种植方式、油菜品种、类型、土壤质地等条件的关系。
短句来源
     The suitable planting density and time of sowing are favor of optimum use of soil water and improving water use efficiency,and make potato increasing its output.
     适宜播种密度和播期有利于土壤水分的优化利用和水分利用效率的提高,可促进旱地马铃薯增产。
短句来源
  播种时间
     The result shows that height and low per cent of seed germination of Rhododendron and seedling's growing are with relation to time of sowing, media of sowing and temperature, humidity.
     研究结果表明:杜鹃花种子发芽率的高低及幼苗的生长与播种时间、播种基质及温湿度相关。
短句来源
     through the breeding test of 25 species excellent broadleaf in Jian Shuangjiang forestry centre and Nanchang trees garden,appling the general method of seeding can breed the tree seedling up to grade,but the method of seed stratification and the time of sowing are difference,in the time we discuss the root system and the producing capacity of tree seedling preliminarily.
     通过对吉安双江林场和南昌树木园 3年生 2 5个优良阔叶树种的育苗试验 ,表明采用常规育苗方法可培育出供生产用的合格苗木 ,但各树种在育苗时的种子催芽方法不尽相同 ,播种时间有所差异 ,同时对苗木的根系及苗木的产苗量进行了初步的探讨
短句来源
     According to the investigations of onion production and practices,high production cultivation techniques of onion in Daqing region were made,which deals with existing problems in onion production such as the time of sowing,the density of sowing,the density of planting,the management of water and the applying of fertilizers,etc. The aim of this paper was to provide guides for onion production.
     通过生产调查与实践,根据大庆地区生产中存在的播种时间、播种密度、栽植密度、水分管理以及肥料施用等问题制定了圆葱高产栽培技术,目的在于指导生产。
短句来源
  “time of sowing”译为未确定词的双语例句
     2) Time of sowing and transplanting of the second rice crop;
     (2)晚季水稻播种、插秧时间的迟早;
短句来源
     4) Optimum time of sowing of summer soybean is around June 22 in Beijing.
     4)北京地区夏播大豆最适播种期为6月22日左右。
短句来源
     Studies on Suitable Planting Density and Time of Sowing of Potato Covered with Film on Dry Land
     旱作覆膜马铃薯适宜种植密度和播种期的研究
     In different sunshine and temperature ecological factors, filling time of sowing maize in 18 May is longest and 12 June' is shortest.
     不同温光条件下,5月18日播种玉米灌浆持续时间最长,为54天,6月12日最短,为44天。
短句来源
     This paper reports the experimental results of treatments and quality of seeds, the soil, depth and time of sowing and condition of growing seedlings of Simmondsia chinensis. The effective measures for raising the rate of emergence and survival and stimulating the growth of seedling were suggested.
     本文报道希蒙得木的种子理化处理、种子质量、播种土壤、深度、时期及育苗条件等试验结果,为提高希蒙得木的种子出苗率和成苗率及促进幼苗生长提供有效的措施。
短句来源
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  time of sowing
Inoculation of soybeans withBradyrhizobium japonicum and also the time of sowing of soybeans were studied under N-fertilization with urea at 0, 96 and 192 kg N/ha.
      
The enhancing effects of naringenin were more pronounced if it was applied at the early vegetative stage of plant growth or at the time of sowing.
      
Prediction of nitrogen (N) mineralization is important for specifying the optimum rate of N fertilizer for flooded rice at the time of sowing.
      
Baccara) was investigated in the field under adequate water availability, applying various levels of fertiliser N at the time of sowing.
      
Drainage losses were not influenced by either crop type, time of sowing or sowing density, because potential evaporation and hence evapotranspiration was low during the period when drainage losses occurred.
      
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Experiments were carried out with more than 70 varieties and 30 cross combinationS over three years to Study the de elopment of Some characters in the tomato plant in shenyang area.The following primary conclnsions have Leen drawn: 1.Under the condition that seedlings are raised in hot bed and trans planted to the open in early May, the growth period from the time of sowing to first harvest requires about 135 days; and it can be subdivided into the following stages,namely,the gevmination stage (12.5±6.5...

Experiments were carried out with more than 70 varieties and 30 cross combinationS over three years to Study the de elopment of Some characters in the tomato plant in shenyang area.The following primary conclnsions have Leen drawn: 1.Under the condition that seedlings are raised in hot bed and trans planted to the open in early May, the growth period from the time of sowing to first harvest requires about 135 days; and it can be subdivided into the following stages,namely,the gevmination stage (12.5±6.5 days), the seedling stage (29.5±5.5 days), the flower development stage (35±8 days), and the fruit development Stage including the flowering stage (58±10 days),Flower bud differentiation usually begins during the appearance of the fourth leaf.Within the growing season, the shortest growth period occurred white seed were sown in June, and under such condition the time required from seedling emergence to first harvest needs only 80 days. 2.Temperature is the main factor which influences the length of the second developmental stage, which is shorter with mean temperature above 20℃ than it is around 15℃.The main factor that influences the length of the third developmental stage is the intensity of light.The effect of other factors such as the daily mean temperature, deposition of rainfall and others within the range of seasonal variation seems to have only minor importance.With the fourth and fifth developmental stage, temperature is still the main influencing factor. 3.Earliness of maturity has been found to be dependent both upon the time of flowering and the length of fruit development period.Under ordinary cultural condition it depends more upon the length of fruit development period, while under condition unfavorable for flower bud differentiation it depends more upon the flowering time. 4.The position of the first inflorescence varies with the growth condition of seedlings, and its year-round curve (including greenhouse culture) appears to have two peaks, i.e.higher in Spring and Autumn sowing, lower in Summer and Winter Soving.This is also true with hybrid seedlings.It seems that under ordinary condition light intensity and the daily amplitude of temperature are the two main factors which affect the position of the first inflorescence. 5.No Significant correlation was found letween earliness and the position of first inflorescence.The Conventional hypothesis which postulates,the existence of this correlation calls for further consideration. 6.There is no significant correlation existing between the length of fruit development period and the size of fruit finally attained.The length of fruit development period seems to be determined mainly by the rate of development in early stage with mean temperature alove 20℃ which is found to be more rapid than that of 15℃.Fruits that have reached the size alout half of their final diameter require about 25 days for further develop ment to reach maturity under all experimental conditions.Tomato fruits reuire alout 800℃ of summation of mean daily ternperature to develop from fertilization to maturity.However, early varieties may be satisfied with temperature summation lower than this, while late varieties may require a little higher than this. 7.Continuous selection of the early ripening fruits from early maturing plants results in gradually tropping of the mean fruit weight. 8.when plants were prunned to set only with three trusses of fruits, the varietal difference expressed as average yield to the plant was found to have no significant correlation with the mean numler of fruits to the plant tut to depend mainly upon the mean frnit weight of the variety. 9.The distribution of yield within the harvesting period from June to August may roughly be expressed by a curve with only one peak.if the yield is counted by every ten days, then most varieties reach their highest yield at the third or fourth time of picking.Generally, the first three pickings have already yielded about 70—90% of their total products.Inorder to utilize the land more economically a harvesting period lasting 30—40 (lays should be considered as suitable. 10.Most F_1 hybrids are superior to the parents as regard to the earliness of maturity, proluctivity, and high yield on the early stage.Among the varieties which have been tested,"Bison","Bounty" and"podaleaskovsky" are better parents for prolucing early and productive F_1 hybrids.

本文是从1954年起到1957年三年多时间内在沈阳对总共七十多种和三十多杂交组合的番茄的一些性状的观察研究总结,初步结论有以下几点: 一、在沈阳地区春冬温床育苗的情况下番茄从播种到初次收获约需135天,其中发芽期为12.5±6.5天,幼苗期29.5±5.5天,花器发育期为35±8天,果实发育期包括开花期在内为58±10天。花芽分化开始于第四真叶出现时。在一年之中6月播种的物候期最短,从出土到初次收获仅80天。二、影响第二发育分期长短的主要因素是气温,凡是平均温度在20℃以上的都比在15℃左右的短。影响第三发育分期长短的主要因素是光照强度。在自然气候变异幅度内的温度降水量等因素虽有影响但不及光照,影响第四和第五发育分期长短的主要因素也是温度。三、花期早晚和果实发育期的长短对早熟性有大致相等的重要性。在通常温床育苗情况下受果实发育长短的影响较大,当幼苗期条件不利于花芽分化时则受花期早晚的影响较大。四、第一花序节次的高低随育苗环境条件而变。在一年中有二次高低节次变化(包括温室栽培在内),即春秋低冬夏高。杂种也表现相似的趋势。节次的高低似乎主要决定于光照强度和日温差大小。五、第一花序节次的高低和品种成熟期的早晚并无一...

本文是从1954年起到1957年三年多时间内在沈阳对总共七十多种和三十多杂交组合的番茄的一些性状的观察研究总结,初步结论有以下几点: 一、在沈阳地区春冬温床育苗的情况下番茄从播种到初次收获约需135天,其中发芽期为12.5±6.5天,幼苗期29.5±5.5天,花器发育期为35±8天,果实发育期包括开花期在内为58±10天。花芽分化开始于第四真叶出现时。在一年之中6月播种的物候期最短,从出土到初次收获仅80天。二、影响第二发育分期长短的主要因素是气温,凡是平均温度在20℃以上的都比在15℃左右的短。影响第三发育分期长短的主要因素是光照强度。在自然气候变异幅度内的温度降水量等因素虽有影响但不及光照,影响第四和第五发育分期长短的主要因素也是温度。三、花期早晚和果实发育期的长短对早熟性有大致相等的重要性。在通常温床育苗情况下受果实发育长短的影响较大,当幼苗期条件不利于花芽分化时则受花期早晚的影响较大。四、第一花序节次的高低随育苗环境条件而变。在一年中有二次高低节次变化(包括温室栽培在内),即春秋低冬夏高。杂种也表现相似的趋势。节次的高低似乎主要决定于光照强度和日温差大小。五、第一花序节次的高低和品种成熟期的早晚并无一定的相关,所以这方面的传统说法是需要修正的。六、果实发育所需时期的长短与果实最后达到的大小无明显相关。果实发育期的长短主要决定于幼果期的发育速度,而幼果期的长短主要决定于气温,平均温度在20℃以上时显著较在15℃左右时为速。果实发育所需積温约在800℃左右早熟品种较少晚熟品种较多。七、继续选择早熟单株早期果实能使平均单果重逐渐减轻。八、在控制结实花序数的情况下平均单株产量主要决定于平均单果重而与平均单株结果数无明显相关。九、从6月下旬到8月的产果期内分期产量的分布呈单峯曲綫,如以十天为一期则一般品种都在第三第四期连产量的最高峯。一般前三期的产量已达总产量的70~90%,故为有效利用土地起见番茄从开始采果起经30~40天即可拔株。十、杂种第一代在早熟性丰产性和早期产量方面一般都优于亲本品种。从利用杂种第一代获得早熟丰产系统来讲「比」「矮红金」「波逹里斯可夫」等都是较优良的亲本。

Experiments were carried out with more than 70 varieties and 30 cross combinations over three years to study the development of some characters in the tomato plant in Shenyang area.The following primary conclusions have Leen drawn. 1.Under the condition that seedlings are raised in hot bed and trans- planted to the open in early May,the growth period from the time of sowing to first harwest requires about 135 days;and it can be subdivided into the follwing stages,namelyi,the germination stage(12.5±6.5...

Experiments were carried out with more than 70 varieties and 30 cross combinations over three years to study the development of some characters in the tomato plant in Shenyang area.The following primary conclusions have Leen drawn. 1.Under the condition that seedlings are raised in hot bed and trans- planted to the open in early May,the growth period from the time of sowing to first harwest requires about 135 days;and it can be subdivided into the follwing stages,namelyi,the germination stage(12.5±6.5 days),the seedling stage(29.5±5.5 days),the flower development stage(35±8 days),and the fruit development stage including the flowering stage(58±10 days).Flower bub differentiation usually begins during the appearanue of the fourth leaf. Within the growing season,the shortest growth period occurred while seed were sown in June,and under such condition the time required from seedling (?)mer gence to first harvest needs only 80 days. 2.Temperature is the main factor which influences the length of the second developmental stage,which is shorter with mean temperature above 20℃ than it is around 15℃.The main factor that influences the length of the third developmental stage is the intensity of light.The effect of other factors such as the daily mean temperature,deposition of rainfall and others within the range of seasonal variation seems to have only minor importance.With the fourth and fifth developmental stage,temperature is still the main influencing factor. 3.Earliness of maturity has been found to be dependent Loth upon the time of flowering and the length of fruit development period.Under ordinary cultural condition it depends more upon the length of fruit development period, while under condition unfavorable for flower bud differentiation it depends more upon the flowering time. 4.The position of the first inflorescence varies with the growth condition of seedlings,and its year-round curve(including greenhouse culture)appears to have two peaks,i.e.higher in Spring and Autumn Sowing,lower in Summer and Winter Sowing.This is also true with hybrid seedlings.It seems that und- er ordinary condition light intensity and the daily amplitude of temperature are the two main factors which affect the position of the first inflorescence. 5.No significant correlation was found letween earliness and the position of first inflorescence.The Conventional hypothesis which postulates,the existe- nce of this correlation calls for further consideration. 6.There is no significant correlation existing between the length of fruit development period and the size of fruit finally attained.The length of fruit development period seems to be determined mainly by the rate of development in early stage with mean temperature above 20℃ which is found to be more rapid than that of 15℃.Fruits that have reached the size about half of their final diameter require about 25 days for further development to reach maturity under all experimental conditions.Tomato fruits require about 800℃ of summ- ation of mean daily temperature to develop from fertilization to maturity.Ho- wever,early varieties may be satisfied with temperature summation lower than this,while late varieties may require a little higher than this. 7.Continuous selection of the early ripening fruits from early maturing plants results in gradually dropping of the mean fruit weight. 8.when plants were prunned to set only with three trusses of fruits,the varietal difference expressed as average yield to the plant was found to have no significant correlation with the mean number of fruits to the plant out to dep- end mainly upon the mean fruit weight of the variety. 9.The distribution of yield within the harvesting period from June to August may roughly be expressed by a curve with only one peak.If the yield is counted by every ten days,then most varieties reach their highest yield at the third or fourth time of picking.Generally,the first three pickings have already yielded about 70—90% of their total products.lnorder to utilize the land more economically a harvesting period lasting 30—40 days should be considered as suitable. 10.Most F_1 hybrids are superior to the paxents as regard to the earliness of maturity,productivity,and high yield on the early stage.Among the varieties which have been tested,“Bison”,“Bounty”and“podaleaskovsky”axe better parents for protucing early and productive F_1 hybrids.

本文是从1954年起到1957年三年多时间内在渖阳对总共七十多品种和三十多杂交组合的番茄的一些性状的观察研究总结,初步结论有以下几点:一、在渖阳地区春冬温床育苗的情况下番茄从播种到初次收获约需135天,其中发芽期为12.5±6.5天,幼苗期29.5±5.5天,花器发育期为35±8天,果实发育斯包括开花期在内为58±10天。花芽分化开始于第四真叶出现时。在一年之中6月播种的物候期最短,从出土到初次收获仅80天。二、影响第二发育分期长短的主要因素是气温,凡是平均温度在20℃以上的都比在15℃左右的短。影响第三发育分期长短的主要因素是光照强度。在自然气候变异幅度内的温度降水量等因素虽有影响但不及光照,影响第四和第五发育分期长短的主要因素也是温度。三、花期早晚和果实发育期的长短对早熟性有大致相等的重要性。在通常温床育苗情况下受果实发育长短的影响较大,当幼苗期条件不利于花芽分化时则受花期早晚的影响较大。四、第一花序节次的高低随育苗环境条件而变。在一年中有二次高低节次变化(包括温室栽培在内)即春秋低冬夏高。杂种也表现相似的趋势。节次的高低似乎主要决定于光照强度和日温差大小。五、第一花序节次的高低和品种成熟期的早晚并无一定...

本文是从1954年起到1957年三年多时间内在渖阳对总共七十多品种和三十多杂交组合的番茄的一些性状的观察研究总结,初步结论有以下几点:一、在渖阳地区春冬温床育苗的情况下番茄从播种到初次收获约需135天,其中发芽期为12.5±6.5天,幼苗期29.5±5.5天,花器发育期为35±8天,果实发育斯包括开花期在内为58±10天。花芽分化开始于第四真叶出现时。在一年之中6月播种的物候期最短,从出土到初次收获仅80天。二、影响第二发育分期长短的主要因素是气温,凡是平均温度在20℃以上的都比在15℃左右的短。影响第三发育分期长短的主要因素是光照强度。在自然气候变异幅度内的温度降水量等因素虽有影响但不及光照,影响第四和第五发育分期长短的主要因素也是温度。三、花期早晚和果实发育期的长短对早熟性有大致相等的重要性。在通常温床育苗情况下受果实发育长短的影响较大,当幼苗期条件不利于花芽分化时则受花期早晚的影响较大。四、第一花序节次的高低随育苗环境条件而变。在一年中有二次高低节次变化(包括温室栽培在内)即春秋低冬夏高。杂种也表现相似的趋势。节次的高低似乎主要决定于光照强度和日温差大小。五、第一花序节次的高低和品种成熟期的早晚并无一定的相关,所以这方面的传统说法是需要修正的。六、果实发育所需时期的长短与果实最后达到的大小无明显相关。果实发育期的长短主要决定于幼果期的发育速度,而幼果期的长短主要决定于气温,平均温度在20℃以上时显著较在15℃左右时为速。果实发育所需积温约在800℃左右早熟品种较少晚熟品种较多。七、继续选择早熟单株早期果实能使平均单果重逐渐减轻。八、在控制结实花序数的情况下平均单株产量主要决定于平均单果重而与平均单株结果数无明显相关。九、从6月下旬到8月的产果期内分期产量的分布呈单峰曲线,如以十天为一期则一般品种都在第三第四期达产量的最高峰。一般前三期的产量已达总产量的70~90%,故为有效利用土地起见番茄从开始采果起经30~40天即可拔株。十、杂种第一代在早熟性丰产性和早期产量方面一般都优于亲本品种。从利用杂种第一代获得早熟丰产系统来讲「比(?)」「矮红金」「波达里斯可夫」等都是较优良的亲本。

This paper reports on the results of a study on the occurrcnce. transmission epidemic and control of rice tungro virus diseasc RTV in Fujian, 1979 1982. Field investigations as well as artificial inoculations showed that RTV mainly occures in the second crop rice of the province. The yield losses of the disease estimated 38.9-100% The disease was transmitted by Nephotettix cincticeps, N virescens and Recilia dorsalis, among them the ability of transmission by N virescens for RTV was the strongest. The duration...

This paper reports on the results of a study on the occurrcnce. transmission epidemic and control of rice tungro virus diseasc RTV in Fujian, 1979 1982. Field investigations as well as artificial inoculations showed that RTV mainly occures in the second crop rice of the province. The yield losses of the disease estimated 38.9-100% The disease was transmitted by Nephotettix cincticeps, N virescens and Recilia dorsalis, among them the ability of transmission by N virescens for RTV was the strongest. The duration and the temperature of the acquistion feeding and inoculation feeding periods, both affected the ability of the insect vectors to transmit the disease, while the locality of the insect vectors had not so much effect on transmission. Epidemic of the disease was mainly associated with the following factors. 1; The number and viruliterous rate of insect vectors in the months of June to July; 2) Time of sowing and transplanting of the second rice crop; 3)Area that planted to susceptible cultivars. Large area of effective disease control has been achieved by adopting a few integrated control measures, namely minimizing the area planted to susceptible cultivars, and substituting them with the resistant cultivars; regulating the time of sowing and transplanting, so as to escape the migrant peak of the insect vectors during the m(?)t susceptible seedling stage and green recovering tiller stage: eradicating field weeds and killing insect vectors in the key period. All such measures proved to be effective in the large area control of the disease.

本文报道1979~1982年福建水稻东格鲁病发生、传播、流行和防治的研究结果。田间调查和人工接种表明:此病主要发生于我省晚季稻田;病田产量一般损失3~7成,甚至完全绝收;病害可由黑尾叶蝉、二点黑尾叶蝉和电光叶蝉传播,但以二点黑尾叶蝉的传病力最强。介体昆虫的传病能力,与其饲毒和接种取食时间长短及温度高低有关,而与昆虫产地关系不大。病害流行主要与下列因素有关:(1)6~7月份的介体昆虫数量及其带毒虫比率;(2)晚季水稻播种、插秧时间的迟早;(3)感病品种的栽植面积。采用压缩感病品种,改种、扩种抗病品种;调整播种插秧时间,避过最感病的苗期和返青分蘖期的介体昆虫迁飞高峰,以及关键时间铲除田间杂草,扑灭介体昆虫等几项综合防治措施,可在大面积范围内有效控制病害的流行。

 
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