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cultivation
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  栽培
    Structure and Function of Population Photosynthetic Source in Winter Wheat under the Water-saving and High-yielding Cultivation Condition
    冬小麦节水高产栽培群体源性能特征及其调控机制
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    Studies on Quality Character Formation and Cultivation Regulation and Control of Angelica Dahurica
    白芷质量性状形成及栽培调控研究
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    Study on Physiological and Ecological Characteristics and Optimal Cultivation Measures of New Maize Hybrids
    玉米新品种生理生态特性及优化栽培措施研究
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    Studies on Biological Characteristics, Cultivation Techniques and Extraction Technology of Effective Components in Cynanchum Bungei Decne
    白首乌的生物学特性和栽培技术以及有效成分提取工艺研究
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    Analysis of the Approach to the Cultivation Technique of Highyielding Cotton
    高产棉花的栽培技术途径剖析
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  栽培技术
    Studies on Biological Characteristics, Cultivation Techniques and Extraction Technology of Effective Components in Cynanchum Bungei Decne
    白首乌的生物学特性和栽培技术以及有效成分提取工艺研究
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    Analysis of the Approach to the Cultivation Technique of Highyielding Cotton
    高产棉花的栽培技术途径剖析
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    Bases for Advancing Rational Cultivation Measures and Remarks on the High-yielding Cultivation Techniques of Spring Wheat On the Qinghai Plateau
    制定合理栽培措施的依据 兼述青海高原春小麦高产栽培技术
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    STUDY ON THE HIGH-YIELDING CULTIVATION OF WHEAT AFTER RICE
    稻茬麦高产栽培技术研究
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    TECHNIQUE SYSTEM OF RICE CULTIVATION FOR HIGH YIELD AND LOW COST, RESISTIBITLIY TO ADVERSITY AND STABLE YIELD IN DIFFERENT ECOLOGICAL REGIONS IN SICHUAN Ⅱ A Mathematic Model of Cultivation Technique of Middle- Season Hybrid Rice for High Yield an
    四川不同生态区水稻高产低耗抗逆稳产栽培技术体系研究——Ⅱ 川西平原两熟田杂交中稻高产低耗栽培技术数学模型研究
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  耕作
    Study on Ridge Cultivation and Matching Combined Minimum Tillage Implements for Soil Water Storage and Preservation in Northeastern China
    东北垄作蓄水保墒耕作技术及其配套的联合少耕机具研究
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    Study on Farming System for Erosion Prevention and Fertilizer Cultivation on Slope Farmlandwith Blake Soil
    黑土坡耕地防蚀培肥耕作制度研究
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    The Influence of Cultivation Methods on Soil Water and Cotton Growth
    耕作方法对土壤水分及棉花生长的影响
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    Study On Practical Cultivative Technic of Cutting Cultivation to Economize on Energy in Production of Soybean
    大豆少耕节能实用耕作技术的研究
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    Experimentation of Protective Cultivation for Winter-Wheat in Gansu East Area
    陇东地区冬小麦保护性耕作技术试验
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  “cultivation”译为未确定词的双语例句
    Control Effect of Soil Water and Physiological and Ecological Response of Crops under Micro-Catchment Cultivation
    微集水种植条件下土壤水分调控效果及作物的生理生态效应
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    STUDIES ON THE UTILIZATION OF 8 AZOLLA SPECIES IN AGRICULTURE Ⅱ.An investigation on their cultivation in paddy field and utilization methods
    八个绿萍种在农业上的利用研究 Ⅱ.八个绿萍种在稻田养殖与利用技术的研究
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    STUDY ON ECOLOGICAL ADAPTABILITY OF SOYBEAN AND ITS APPLICATION IN GUIZHOU —— Ⅱ ECOLOGICAL CONDITION FOR SOYBEAN CULTIVATION OF GUIZHOU ANE THD REGIONAL ADAPTABILITY OF VARIOUS VARIETIES
    贵州大豆生态适应性及其应用研究——Ⅱ.贵州大豆的区域生态及品种的区域适应性
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    REGIONALIZATION OF WHEAT CULTIVATION IN DRYLAND FARMING AREA IN NORTH SHAANXI
    陕西北部旱作区小麦区划
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    STUDIES ON MATHEMATICAL MODEL WITH HIGH YIELDING COMPREHENSIVELY CULTIVATION MEASURES IN BARLEY
    大麦高产综合裁培措施的数学模型研究
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  cultivation
Results of this study provide a theoretical basis for the directive cultivation of natural poplar-birch forests.
      
Based on strengthening cultivation and management, integrated control measures were put forward including physical, biologic and chemical methods.
      
Selection, propagation and cultivation of Pinus massoniana clones for pulp use
      
The spore germination, protonemal development, and gametophyte differentiation of Hypnum pacleseens were observed in cultivation.
      
Isolation and cultivation of murine hematopoietic stem cells and expression of hFIX mediated by recombinant lentiviral vectors i
      
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This work was conducted in 1955-1956 at Nanking (32°03'N'),China.800 rice varietiesnative to China were collected and sowed under the day-length of 9.5,11.5,12.5,13.5,and 18hrs.and natural day-length as control.Bamboo frames with black oil-cloth were used to shutoff day-light for short-day treatments.While electric lamps were used to lengthen naturalday-length for long-day treatments.Seeds soaked with water for 36 hours and vernalized at25℃ for 12 days and then,sowed on May 20:It was demonstrated that even under...

This work was conducted in 1955-1956 at Nanking (32°03'N'),China.800 rice varietiesnative to China were collected and sowed under the day-length of 9.5,11.5,12.5,13.5,and 18hrs.and natural day-length as control.Bamboo frames with black oil-cloth were used to shutoff day-light for short-day treatments.While electric lamps were used to lengthen naturalday-length for long-day treatments.Seeds soaked with water for 36 hours and vernalized at25℃ for 12 days and then,sowed on May 20:It was demonstrated that even under warm and proper short-day conditions—commonly9,5 to 11.5 hours of exposure to light for 24 hrs.cycle—the length of growth periods (fromsowing to heading) for different rice varieties varied from 42 (The shortest one Changjidao,a native variety of changji,Xinjiang) to 88 days (The longest one,Hongzuijia,a nativevariety of Fenghua,Zhejiang).This characteristics of rice varieties was denoted by the term“short-day growth period”.According to length of growth period under short-day conditionwe divided the rice varieties into 10 classes as follows:The rice varieties were thus classified and the result was listed'in table 1.It shows thatthe rice varieties from South China varies from B_1 to B_(10);the Middle and South-western Chinavarieties,from B_2 to B_9;the North China varieties,from B_2 to B_7;the North-eastern Chinavarieties,from B_2 to B_6,and the North-western China varieties,from B_1 to B_3.This resultstrongly indicates that the property of “short-day growth period”of a rice variety is closelyrelated to the climatic conditions of its original habitat.In regions of high latitude or plateauwith high altitude,usually accompanied with shorter growing season,the rice varieties withshorter length of growth period would be suitable for cultivation;while in plains of lowlatitude,usually followed by longer growing season,the rice varieties with either shorter orlonger length of growth period might be recommended for use.The earliness of maturity of a rice variety is fully determined by its “short-day growthperiod”and response to day-length.Thus we had in Nanking: L,response to day-length;B,“short-day growth period”.The yield components,especially the number of spikelets per panicle varied greatly amongthe rice varieties of different response to day-length under the conditions of experimentaltreatments.The data show that for very weak response type of rice varieties,the averagenumber of spikelets per panicle varied from 9.5% to 105% (take average number of spikeletsper panicle under 11.5 hrs.of light exposure in 24 hrs.cycles as 100%) under the testedrange of day-length;for weak type 90%-120%;for moderate type 0-124%;for strong type0-218%;and for very strong type 0-150%.Thus,it is evident that the stronger the varietyresponds to day-length,the greater,the variations of the number of spikelets per panicle wouldbe.This was further confirmed by the evidence that rice varieties of L very weak andL weak types always show greater ability of adaptation to changed conditions.Hence,moreattention should be paid to rice varieties of these two types for specialists of seed improve-ment.It should be emphasized especially for seed improvement of subsp.Keng,because onlya few varieties now existed are of L very weak and L weak types with medium “short-daygrowth period”.Such types of rice varieties are urgently needed in present crop-production.

用800个中国水稻品种试验的结果指出:不同地区原产的品种不但对光照长度的反应特性不同,而且在短日照下的生育期也不同。这种特性称为短日生育性。北方的品种短日生育性较小;南方的品种从小到大都有。品种成熟期的早晚是其光照长度反应特性和短日生育性在一定环境条件下的具体表现,改变环境条件时,早晚熟的顺序随之改变。对光照长度反应弱的品种一般产量变化小,适应力大。试验结果得出各地区品种的光长反应特性和短日生育性。

An investigation,on the bud and the root with regard to the stubble cane and its pro-duction,had been carried out,during the years 1961 and 1962 in Fukien province,and thepreliminary results were summarized briefly as follows:1.By employing the radio-active element p32 as a tracer,it was shown that the old rootsystem of the stubble was capable of absorption early in the growing season.In so doing,the stubble cane was able to make an earlier start in growth than that of the newly plantedcane.(See tables 1 to...

An investigation,on the bud and the root with regard to the stubble cane and its pro-duction,had been carried out,during the years 1961 and 1962 in Fukien province,and thepreliminary results were summarized briefly as follows:1.By employing the radio-active element p32 as a tracer,it was shown that the old rootsystem of the stubble was capable of absorption early in the growing season.In so doing,the stubble cane was able to make an earlier start in growth than that of the newly plantedcane.(See tables 1 to 3).2.We found that permanent roots appeared on the ratoon,soon after its emergence fromthe stubble cane,while,in contrast,the newly planted cane produced only permanent rootsafter it possessed two true leaves.The ability of the ratoon to produce permanent roots de-pended on the number of bud scales.Usually,the more the number of scales,the earlier andbetter production of permanent roots.(See tables 4 to 5).3.The number of bud scales on buds appearing at different nodes on the same cane wasfound to be different,being more at the basal portion,and decreasing in number toward thedistal end.Likewise,the number of scales on an opened bud was found to be higher thanthose of the unopened ones on the same node in different cane.(See tables 9 to 12).4.New canes arising from buds occurring on the basal portion up to a height fivecentimeters of the residual stock were larger,more vigorous and constituted the effectivecanes in crop production.It was further shown,that the crowded nodes,often enveloped inthe scales of the residual stock,were able to differentiate normal and healthy buds.Themanner and time of the formation of these buds remained as problems to be studied later.(See taables 6 to 8).5.We would like to stress the fact that the performance of the buds and the roots forthe stubble canes referred to above as important factors in sugar cane production,wasintimately linked up with the external factors including cultural operations.The productionof earlier,more and stouter canes was often influenced by a number of cultural treatmentsthey received during the previous season.Among these cultural treatments,we listed thefollowings:(1) harvesting of canes properly conducted;(2) good care and protection ofstubbles through the winter;(3) proper cultivation and preparation of cane beds during earlyspring;(4) adequate fertilization,cultivation and irrigation of the preceding crops;and (5)chemical and biological control measures of pests and diseases well executed.(See tables 13to 28).

通过解剖和应用 P~(32)示踪,明确了各节位蔗芽的构造,老根系的作用,以及根系提早发生的原因。研究了宿根甘蔗的丰产技术,认为破畦松兜的增产效果最为明显。

From 1959 to 1963,investigations have been made on the planting experiences of ChenYueng-kang——the well known rice specialist,in obtaining higher production of late rice.In these five years,out of 23 high productive sites cultivated by him,21 sites having rangedfrom 456-628 kg per mou(1/15 hectare).The practical cultivation method has been carriedout in a state farm since 1962,and also applied on the Peoples Commune fields in 248places for demonstration in Su-chou distriet of Kiangsu province since 1963,and...

From 1959 to 1963,investigations have been made on the planting experiences of ChenYueng-kang——the well known rice specialist,in obtaining higher production of late rice.In these five years,out of 23 high productive sites cultivated by him,21 sites having rangedfrom 456-628 kg per mou(1/15 hectare).The practical cultivation method has been carriedout in a state farm since 1962,and also applied on the Peoples Commune fields in 248places for demonstration in Su-chou distriet of Kiangsu province since 1963,and it showedsignificant increase of production ranging from 11-23%.After transplanting,technical performance in various growing stages has to be planned inline with the high yield object,with which the help of technique by controlling the growth anddevelopment of rice and the proper fluctuation of the leaf-shade in order to obtain an“idealplant”for highest production.In the period of tillering,leaf-shade is required for dark greenin color(leaf-shade in dark color for the 1st time)but the number of plants,length of culmsand leaf-area index have to be controlled within a certain limit in order to maintain a steadygrowth.For instance,for the variety“Lao Lai Ching”,the total number of plants per Chinesemou(666 m~2)may be limited in 300 thousands,the length of culms is 67 cms.at the end oftillering stage and 130-133 cms.when ripening,and the leaf-area index is 2 approximately atthe climax of tillering stage(about one month after transplanting).After draining,theleaves then become again lighter in color for yellowish green.At the same time,the leaves becomeupright.On this base,the fertilizer is applied,and the leaves appeared to be dark for thesecond time.Henceforth,again it turns into light colored before the ear-(?)rimordia formation.It is also important that the plants look both flourishing and tough or stout.The plants thenbecome“row clesed”(i.e.leaves of adjacent rows overlap each other)10 days after the ear-primordia formation.The optimum highest leaf-area index is about 6—7.During the begin-ning of ear formation,fertilizer is again applied in accordance with the state of plants toavoid early decayed.The leaf-shade turns into dark green for the third time.Before heading,it gradually turns lighter and becomes yellowish green for the third time.Before ripening,the culm is fresh and the grain is yellow,without any lodging and outburst of blast disease.In this report,some explanation is given for controlling the growth of the plants aimingat an“ideal plant”in various growing periods.The function played by the initial technicalperformances is also analyzed.It is shown that the fluctuation pattern of leaf-shade has todo with the change of nitrogen and carbohydrate content which effect directly to the growthof organs and therefore the formation of grains.According to analysis,it is also pointed out that the regulation of the fluctuation of leaf-shade may be.used as one of the criteria for controlling the metabolic activity between carbonand nitrogen.But it should be proceed together in a controlled manner for an“ideal plant”growth,which may be successful in ap(?)lying a sufficient amount of fertilizer and can bethoroughly utilized by the plants without causing any lodging and outburst of blast disease.

“三黑三黄”是我国农民在晚稻方面精耕细作的栽培经验,本文对此进行了此较全面的总结。内容包括1959—1963年连续五年的资料,分析了高产群体结构发展的特点,介绍了高产栽培技术的原则,论述了黑黄变化的辩证关系,及其与产量的联系。

 
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