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yield     
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  产量
    Yield Advantage and Nitrogen Economy in the Intercropping System of Peanut with Rice Cultivated in Aerobic Soil
    旱作水稻/花生间作系统的氮素供应特征及产量优势
短句来源
    PLANT YIELD AND ENVIRONMENT
    植物产量与环境
短句来源
    LOCATION STUDY OF FERTILIZING EFFECT IN BLACK SOIL──ⅢEffects of different fertilizing ways on the crop yield and quality
    黑土培肥效果的定位研究──Ⅲ不同培肥途径对作物产量和品质的影响
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    YIELD CHARACTERS AND PROTEIN CONTENT IN AUTOTETRAPLOID BARLEY
    同源四倍体大麦的产量性状和蛋白质含量研究
短句来源
    Changes of Ecelogical Conditions and their Effect on the Yield of Wheat in Paulownia-crop Intercropping System
    农桐间作系统对小麦生态条件及产量影响的研究
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    Sediment Yield and Decision-making Support System for Soil and Water Conservation in Watershed with GIS
    基于GIS的流域沙及水土保持决策支持系统研究
短句来源
    Study on the Relationship between Soil Erosion Rate and Sediment Yield in Small Watershed by ~(137)Cs and ~(210)Pb_(ex) Tracing Method
    小流域侵蚀速率与沙关系的~(137)Cs、~(210)Pb_(ex)示踪研究
短句来源
    Study of Sediment Yield from Slope and Gully Erosion After Reclamation of Forest Land
    林地开垦后坡沟侵蚀沙关系的研究
短句来源
    Study on Process of Runoff and Sediment Yield in Artificial Grassland on Simulated Rainfall Condition
    模拟降雨条件下人工草地沙过程研究
短句来源
    Problems Needed to be Solved in Sediment Yield Model Based on Physical Processes
    物理成因沙模型研究中亟待解决的几个问题
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  增产
    Effect of Different Fertilizer Structure on the Yield of Wheat and Maize and the Quality of Wheat
    不同施肥结构的增产效应和对小麦籽粒品质的影响
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    Effect of DWY on Physiological Characteristics,Yield and Quality of Flue-cured Tobacco
    DWY对烟草的生理调节及增产增质效应研究
短句来源
    Studies on Yield Gains of a New Growth Regulator 83008 1 for Mulberry
    新植物生长调节剂83008-1对桑叶增产作用的研究初报
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    EFFECT OF INCREASING YIELD BY USING MAARSH LIQUID FERTILIZER FOR SOAKING SEED
    沼液肥浸种的增产效果
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    The result of inspection reveals that the yield increase and the increasing rate are 75~90kg/hm2 and 7% for wheat;
    经检测,麦类增产75~90kg/hm2,增幅为7%左右;
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    Land cover types had significant effects on sediment yield of slope. At the same time,the amount of sediment could be decreased 71.05%-95.58% if the forest cover rate reached 70%-80%.
    土地覆被状况对于泥沙的产生有重要影响,同等条件下,若林地土地覆被率达到70%~80%,则能够减少71.05%~95.58%的泥沙产生
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    Summary In the irrigated region of plain of Inner Mongolia, the optimum amount of nitrogen applied for spring wheat and maize is 100-180 kg hm-2 and 180~350 kg hm-2, yield is 4.50-7.50 t hm-2 and 9.00-15.00 t hm-2, yield increase 30% or so and 30-43% respectively.
    内蒙古平原灌区,春小麦适宜的施N为100~180 kg hm-2,产4.50~7.50thm-2,增产30%左右;
    Study on the Effect of Fertilization and Density on Rice Yield
    施肥和密度对水稻产影响的研究
短句来源
    Study on Methods of Sediment Yield Measurement in Model Tests of Soil and Water Conservation
    水土保持模型试验中产沙方法研究
短句来源
    2. Mg has great influence on crop yieds. Compared with conventional NPK applica-tion. Mg addition increased soybean yield by 3. 8-11.9Yo, increased rice yield by 3. 8
    2.镁肥对大豆、水稻、玉米、小麦产有明显的影响,施不同镁肥的处理与常规施氮磷钾处理相比,大豆增产3.8~11.9%,水稻增产3.8~14.1%,小麦增产6.0~11.9%,玉米增产4.3~13.3%。
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  yield
We also prove that some unimodular wavelets yield unconditional bases in Lp(?).
      
The same technique of proof is also applied to yield an existence result for A-dilation MRA subspace wavelets.
      
In most applications, it is this overcompleteness that is exploited to yield a decomposition that is more stable, more robust, or more compact than is possible using nonredundant systems.
      
This article shows that those abstract results yield an array of new implications for irregular Gabor frames.
      
The base-catalyzed condensation of thioureas (1-3a-i) with acetone was carried out in the presence of bromine to afford the corresponding 1-(isomeric methyl) benzoyl-3-aryl-4-methyl-imidazole-2-thiones (4-6a-i) in good yield.
      
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The semi-arid area of northwestern Liaoning province is located in119°-123°30′N., 40°30′-43°N.. Average annual rainfall is 400-500mm from northwestern part to southeastern part. There were 300 mmmore or less rainfall per year only from 1980-1982. Total annualevaporation is fourfold than annual rainfall. Average annual tempera-ture is 7-9°c.≥10°c temperature is 3200°-3600°C. The crop growingperiod is 130-160 days. The soil types are Yellow-white soil, Brownsoil and Sandy soil. There are 17 million mu of farm...

The semi-arid area of northwestern Liaoning province is located in119°-123°30′N., 40°30′-43°N.. Average annual rainfall is 400-500mm from northwestern part to southeastern part. There were 300 mmmore or less rainfall per year only from 1980-1982. Total annualevaporation is fourfold than annual rainfall. Average annual tempera-ture is 7-9°c.≥10°c temperature is 3200°-3600°C. The crop growingperiod is 130-160 days. The soil types are Yellow-white soil, Brownsoil and Sandy soil. There are 17 million mu of farm land, (1.13 mil-lion hecters), which are 70% in hillside and 30% in the plain.Based on its natural environment, ecolegical conditions. existingproductive capacity of agriculture and long-term practical experience,some ways of reforming farming system were discussed.1. Controlling water and soll erosion through afforestation andgrass-growing is a reliable base of farming system reform. Yield per unitarea and soil organic matter content have double where afforastation waspersisted in and a proper ratio between crop and grass was kept.2. It is essential to establish a soil tillage system for drought re-sistant and controlling wind and water erosion mainly changing frequenttillage to minimum tillage, harrowing and rolling during winter andearly spring to preserve soil noisture.3. It is an effective way of readjusting crop proportion in dry far-ming area to stabilize and increase yield and income by expanding theareas of drought-resistant crops such as millet, sunflower, sweet potato,etc. and increasing apprepriately the areas of fibre crops in irrigatedland.4. Dry land irrigation is a favorable measure to increase yield. Butthe water resource is unsufficient in this area. Irrigation during winterand early spring, storing up the soil water with tillage and utilizing itduring stress season, is an effective measure to overcome spring drought.

辽宁省西北部半干旱地区是广阔的欧亚中纬度干旱、半干旱地区的东缘南段。总面积约为2.81万平方公里,占全省总土地面积的20%左右,共有耕地1700万亩;平均每人占有耕地3~10亩以上,是该省人少地多的地区。 全区地势西高东低。年平均气温在7~9℃之间,年≥10℃积温在3200℃~3600℃之间,无霜期130~170天,年日照时数2400~3000小时,太阳年辐射量在130大卡/平方厘米·年左右。年降水量在500毫米左右。作者分析了七个县20多年的年降水量与粮食亩产量的关系,指出:年降水量不足400毫米,则亩产量明显下降;当年降水量小于300毫米时,则严重减产。朝阳县29年的资料,年降水量小于400毫米的共有7年,其亩产量都在180斤以下。 本区耕作制度改革的主要途径是: 1、造林种草,防止水土流失;改广种薄收为精耕细种、少种,高产多收。 2、确立防旱、防风蚀、防水蚀的“三防”土壤耕作制。 3、扩大抗旱作物、增种经济作物,调整作物布局,作到稳中求高,增产增收。 4、发展灌溉是提高产量的有效途径。

The result of an experiment continued for six years since 1979 hasshown that the combining measurement of reduced tillage and soilfertility cultivation with tilling replaced by harrowing and returning thestraw into field improves comprehensively the nutrient and waterconditions of soil, promotes the growth and development of crops andincreases the yields. In other words, it reduces the drive-in frequency ofthe machinery unit, lightens the destruction of soil in tillage layer bythe machine, improves the...

The result of an experiment continued for six years since 1979 hasshown that the combining measurement of reduced tillage and soilfertility cultivation with tilling replaced by harrowing and returning thestraw into field improves comprehensively the nutrient and waterconditions of soil, promotes the growth and development of crops andincreases the yields. In other words, it reduces the drive-in frequency ofthe machinery unit, lightens the destruction of soil in tillage layer bythe machine, improves the utilization and production efficiency of farmimplements and lessens the fuel consume and operation cost. Only inthe tilling period in autumn before sowing wheat, replacing tilling byharrowing could reduce the fuel consume by 1.25 kg per mu in average incomparison with the traditional tillage, saving 32%. The operation costcould be reduced by 1.5 yuan per mu, saving 30%. The labor and timefor leveling the land after tilling could be saved at all. It seems to beadvantageous for sowing wheat in good time. The experimental results has presented a scheme of operationtechnology and necessary machinery for harrowing straw into field inthe integrated measurement of agricultural machinery and agronomy.

从1979年起,连续六年的试验研究证明:在小麦-玉米一年两熟种植方式中,采用以耙代耕和秸杆还田的“少耕”和“培肥”相结合的措施,较传統耕法可以减少机组的进地次数,减轻机具对耕层土壤的破坏,提高机具的利用率和生产率,降低能源消耗和作业成本,有效地提高经济效益。仅小麦播种前的土壤耕作阶段,以耙代耕与传統耕法相比较,平均每亩可减少燃油消耗1.25公斤,节約32%,可降低作业成本1.5元,节約30%,幷可节省全部耕地后平地所用人工,提高了工效,有利于小麦适时播种。试验结果提出了农机和农艺结合的耙秸还田机械化作业工艺和机具配套方案。

Poor soil fe(?)tility, dry climate and low efficiency of utilization of natural rainall alongside the monocultivation and cultivation of a big acreage with a low yield in the loess hilly semiarid area in west part of Shanxi have long caused unstability in agricultural production. A series of experiments and demonstrations in completion were carried out in 1984-1985, through which a complete set of agrotechniques for the yield increase of rainfed agriculture have been summed up such as the betterment...

Poor soil fe(?)tility, dry climate and low efficiency of utilization of natural rainall alongside the monocultivation and cultivation of a big acreage with a low yield in the loess hilly semiarid area in west part of Shanxi have long caused unstability in agricultural production. A series of experiments and demonstrations in completion were carried out in 1984-1985, through which a complete set of agrotechniques for the yield increase of rainfed agriculture have been summed up such as the betterment of soil fertility, tillage for water storage,selection and application of drought-resistant crop varieties, rational close planting (?) m(?)nagements".Th(?)s far,the yiell of grain crops have (?)oubled and economical returns have increased nearly 10 times as much.

晋西黄土丘陵半干旱地区土地瘠薄,气候干旱,自然降水利用率不高,加之单一种植,广种薄收,使农业生产长期低而不稳。1984—1985年,在对该地区旱作农业生产技术综合开发研究中,经过系列化配套试验、示范,总结出了以培肥改土、蓄水耕作、选用抗旱良种、合理密植、“五早”管理等一套旱作农业增产技术,取得了粮食翻番,经济收盖近10倍增长的效果。

 
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