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cultural practices
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  栽培技术
    Studies on Cultural Practices for Late Hybrid Rice Weiyou 198 to Achieve a Grain Yield of 9.0 t/hm 2
    杂交晚稻威优198单产9.0t/hm~2栽培技术探讨
短句来源
    Studies on Cultural Practices for Two-line Indica Hybrid Rice——2301S/H7058
    两系杂交中籼2301S/H7058栽培技术探讨
短句来源
    The rate of empty straw re,luced 11.7%, 12.5%, 13.8%, 15.3%, 16.4%. The dense-resistance of upright-leaf corn was showed fully. Farthermore, the model was made and the combined cultural practices were improved.
    空秆率减少11.7、12.5、13.8、15.3、16.4个百分点,充分显示了紧凑型玉米的耐密性能.同时,还示范并改进了紧凑型玉米的配套栽培技术
短句来源
    Synthetic mating cultural practices for famous and quality tea maturing in early spring
    早市名优茶的综合配套栽培技术
短句来源
    Improving Usability of Burley Tobacco with Optimum Cultural Practices
    运用栽培技术措施调节白肋烟氮碱比提高其可用性的研究
短句来源
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  栽培措施
    STUDY OF MATAEMETICAL MODEL OF WHEAT CULTURAL PRACTICES
    小麦综合栽培措施的数学模型研究
短句来源
    A STUDY ON MATHEMATICAL MODEL FORYIELD OVER 250 KG/MU OF MANDAN 1 HYBRID SEED CULTURAL PRACTICES
    绵单一号玉米制种亩产250公斤综合栽培措施的数学模型研究
短句来源
    EFFECTS OF CULTURAL PRACTICES ON NITROGEN ABSORPTION,QUALITY AND YIELD OF DIRECT SEEDING RICE HANYOUXIANGQING
    栽培措施对直播水稻寒优湘晴N素吸收、稻米品质及产量的影响
短句来源
    Effects of Different Cultural Practices on Grain Quality of Fine Quality Hybrid Rice Liangyou 2186
    不同栽培措施对优质杂交稻两优2186稻米品质的影响
短句来源
    Effects of Cultural Practices on Growth,Development,Yield and Quality of Burley Tobacco
    栽培措施对白肋烟生长发育和产质量的影响
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  “cultural practices”译为未确定词的双语例句
    A STUDY ON THE YIELD FUNCTION MODEL OF AN EXTRA-EARLY SOYBEAN CULTIVAR DONNONG 36 APPLIED COMPREHENSIVE CULTURAL PRACTICES
    超早熟大豆东农36号综合农艺措施的产量函数模型
短句来源
    Agricultural Expert System and Its Application in Wheat Cultural Practices
    农业专家系统在小麦栽培管理中的应用
短句来源
    In various combinations of cultural practices treatments,the following combination obtained the highest yield:planting density being 60cm×16cm,covering plastic film,applying three-component fertilizers,applying total N 153.0kg/hm\+2,P\-2O\-5 72.0kg/hm\+2,K\-2O 225.0kg/hm\+2 and applying PP\- 333 at early bud stage. \;
    在不同栽培处理组合中,以种植密度60cm ×16cm 、用地膜覆盖、施用三元复合肥、每公顷施全N153.0 kg、P2O5 72.0kg、K2O225.0kg、在初蕾期喷施多效唑处理组合的产量最高。
短句来源
    A STUDY ON SOME KEY PROBLEMS CONCERNING THE CULTURAL PRACTICES TO ATTAIN THE 1000-GIN PER MU(7.5 METRIC TONS PER HECTARE) LEVEL OF HIGH YIELD FOR WINTER WHEAT
    冬小麦千斤栽培技术中几个关键问题的研究
短句来源
    CULTURAL PRACTICES OF COTTON TO RESIST THE STORM DAMAGE AND RAIN WATERLOGGING AND ITS MECHANISM
    棉花抗御雨涝风灾的栽培技术及其机理
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  cultural practices
This could be achieved through the exploration of the cultural practices of the local people and integrating useful aspects into the modern natural resource management expertise.
      
Wetting agent and cultural practices increase infiltration and reduce runoff losses of irrigation water
      
The effect of cultural practices like core aerification followed by sand topdressing and application of a wetting agent in reducing runoff of irrigation water was evaluated.
      
Runoff events after the cultural practices and the wetting agent treatment (Dispatch applied at 877 ml/ha) was repeated four times over a time period when the matric potential ranged from 15-40 kPa.
      
Explanations for divering responses can be found in the union's structure, its traditional membership and employer characteristics, its leadership's vision and ideology, and its internal cultural practices.
      
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The results obtained from the experiments on the leaf-color shift in relation to the forma-tion of high yield of wheat in Nanking during 1961 and 1962 are summarized as follows:1.The leaf-color shift of wheat plant is an inherited biological character.The highyield is closely connected with these rhythmic shifts.The appearance of “green-yellow-green”at the early spring,shooting,and booting stages is determined by the fluctuation of thechlorophyll content and the level of nitrogen of the leaves.2.On account of...

The results obtained from the experiments on the leaf-color shift in relation to the forma-tion of high yield of wheat in Nanking during 1961 and 1962 are summarized as follows:1.The leaf-color shift of wheat plant is an inherited biological character.The highyield is closely connected with these rhythmic shifts.The appearance of “green-yellow-green”at the early spring,shooting,and booting stages is determined by the fluctuation of thechlorophyll content and the level of nitrogen of the leaves.2.On account of the 7-9th leaves of high-yielding plant having Comparatively large areaand high dry matter,the accumulation of dry matter in the internodes and leaf sheathes atthe basal part of the plant is promoted,whereby the formation of stiff culm is favored.Under the conditions of high-yielding cultural practices,a higher level of nitrogen of theplant body stimulates the differentiation of spikelets and florets.3.Under high-yielding cultural conditions,the normal shift to green color of the leaves atthe booting stage promotes the translocation of stored matter from vegetative organs to thekernels and favors the process of grain filling.The number of spikelets per head,the grainweight and the yield are consequently increased,while the number of sterile florets is loweredsignificantly.4.A proper lay-out of fertilizer practices is necessary for controlling leaf color shift andgetting a high yield.According to the results of our experiments,a moderate amount ofbasic fertilizers benefits the growing of Well-developed seedlings,while a heavy applicationof farmyard manure at the early winter increases the accumulation of the soil nutrients andtherefore favores the formation of strong tillers and large spikes.The shooting fertilizershould be applied when the green color fades away at shooting stage.The amount offertilizers applied depends upon the degree of leaf color.This application of fertilizers pro-motes the growth of the last three leaves,accelerates the translocation of nutrients to thespike and favors the formation of grain.Besides,the “heading rate”of tiller and the numberof spikelets are also increased.A further application of a proper amount of nitrogen beforethe emergence of the boot leaf enlarges the area of that leaf,significantly increases the rateof photosynthesis,the rate of grain formation and the grain weight,and finally raises theyield by 17.5 percent.

南京地区丰产小麦的叶色在返青、拔节、孕穗阶段显现“青、黄、青”节奏变化。返青阶段叶片正常显“青”,植株体内有适当高的氮素水平,有利于小穗、小花发育,成长大穗;拔节阶段正常显“黄”,叶、鞘、茎生长协调,有利于茎节发育及壮秆形成;孕穗阶段叶色转“青”,有利物质运转,籽粒灌浆顺利,不实小穗减少,增粒、增重。在壮苗基础上重施腊肥,合理掌握春期追肥,控制叶片正常显青、落黄,有利形成壮秆、大穗,增粒增重、稳定高产。

1.The variation and deterioration of important economic characters of a commercialvariety of upland cotton can be detected after being grown for several years.For instance,shorter fiber increases in proportion,the lint index and the ginning percentage become loweredreadily.Variations on growth habit and boll and seed characters tend to enhance year afteryear.Though the degenerated plants possess better boll bearing capacity,but owing to theirsmaller boll size and lower ginning percentage,the yield usually decreases...

1.The variation and deterioration of important economic characters of a commercialvariety of upland cotton can be detected after being grown for several years.For instance,shorter fiber increases in proportion,the lint index and the ginning percentage become loweredreadily.Variations on growth habit and boll and seed characters tend to enhance year afteryear.Though the degenerated plants possess better boll bearing capacity,but owing to theirsmaller boll size and lower ginning percentage,the yield usually decreases by 15.5-26.6 percentas compared with the normal plants.2.Degeneration is materially the adaptability of the cotton plant to its environmentalconditions.It can not be considered as declination in vitality.Degeneration is due mainly toheritable variability of the cotton plant.Under inferior cultural practices and unfavorablesoil and climatic conditions,and under the action of natural selection,characters favorablefor with-standing adverse conditions get enhanced.And on the other hand,the importanteconomic characters become deteriorated.Varietal mixture exerts influence upon degeneration,nevertheless it is not an importantcause3.Measures recommended for improving the seed quality and preventing degenerationare:(1)continuous selection of promising plants for seed multiplication,(2)better culturalpractices,and(3)appropriate handling of seeds.

棉种“退化”是对环境条件的一种适应性,而不是生活力衰退。引起棉种“退化”的原因,主要由于棉种的变异性较大,在不良的农业技术和不利的气候因素的影响下,通过自然选择作用的结果。品种混杂对棉种“退化”也有很大影响,但只是加重“退化”的因素,而不是引起“退化”的主要原因。不断地加强人工选择,并改善栽培管理条件,做好棉种管理等工作,是提高棉花良种种性防止“退化”的根本措施。

The process of accumulation and distribution of dry matter of Yangmei No.lvariety with the yield of 539-589 kg per mu has been studied during 1977-1979.It was found that the amount of dry matter accumulated at the elongationstage was 300kg per mu,about 20% of the maximum dry weight through theentire growing period,and it was 600-700 kg per mu at the booting stage.Yield of 500-590 kg per mu required a maximum biological yield of 1,100-1,500kgand its economic coefficient was 0.38-0.45.The daily increment of dry...

The process of accumulation and distribution of dry matter of Yangmei No.lvariety with the yield of 539-589 kg per mu has been studied during 1977-1979.It was found that the amount of dry matter accumulated at the elongationstage was 300kg per mu,about 20% of the maximum dry weight through theentire growing period,and it was 600-700 kg per mu at the booting stage.Yield of 500-590 kg per mu required a maximum biological yield of 1,100-1,500kgand its economic coefficient was 0.38-0.45.The daily increment of dry matterduring the period from booting to grain filling stage was as high as 13-15kg per mu.It showed that a large amount of dry matter accumulated at the early growing stageand a higher rate of photosynthesis during the later growing stage might bebeneficial to the increase of number of grains and obtaining more weight per ear.The distribution of dry matter in different organs of wheat plant variedat different stages.The rate of distribution of dry matter of leaves was 75-80%before winter time and it decreased to 60% at elongation stage,37% atbooting stage and 8% at dough stage.The rate of distribution of dry matterin sheath was 17% before winter,28% at booting stage and 12% at doughstage.The rate of distribution of dry matter in stem was 13% during the.elongation stage;it increased up to 40% at milk stage and then,decreased to 27%at dough stage.During the grain filling period,parts of storage matter ofleaves,sheaths and stems were transferred to the spikes.The decrease of thedry weight of leaves was about 12% of the weight of the grain and that ofthe sheaths and stems were about 5% and 15% respectively.It is important to promote the rate of solar energy utilization and economiccoefficient in high yielding culture of wheat.The main cultural practices are toestablish a proper structure of dynamic population and to ensure a normalgrowth and development of both individuals and population of plant byproposing an adequate plant density and applying fertilizers and water accord-ing to soil and growing conditions of plants.

小麦高产必须有较高的干物质积累和较高的经济系数。1977—1979年试验结果,扬麦一号小麦品种千斤田块的干物质积累特点:前期物质积累较多,后期物质积累强度较大,总干物质积累量较高。小麦各部器官的物质分配率,在生育前期叶片的分配率较大,生育中期茎秆分配率增多,生育后期穗器官的分配率占优势。小麦在灌浆过程中,叶片、叶鞘、茎秆等器官的贮存物质重新分解向穗部运转,干物重降低,穗子干物重直线上升,直到成熟。高产小麦籽粒产量约有1/3来自抽穗前叶片、茎、鞘等贮存物质,其余约有2/3直接来自抽穗后的光合产物。因此,提高小麦后期叶片的光合效率,对增加穗粒重提高产量有重要作用。提高小麦光能利用和经济系数是高产更高产的方向。其途径关键在于建立一个在各个生育阶段合理的群体结构,主要通过合理安排基本苗数,采取肥、水促控等栽培管理措施。

 
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