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作物系数     
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  crop coefficient
     The single crop coefficient and basal crop coefficient at initial stage corrected was 0.93 and 0.23 at 2003 at Xiangcheng county by the method of FAO-56, 1.13 and 1.09 at middle stage, 0.54 and 0.45 at end stage;
     按FAO—56推荐方法,修正后2003年襄城县烤烟单作物系数和基础作物系数初期阶段分别为0.93、0.23,中期阶段分别为1.13、1.09,后期阶段分别为0.54、0.45;
短句来源
     the single crop coefficient and basal crop coefficient at science and technology garden of school was 0.93 and 0.24 at initial stage, 1.17 and 1.12 at middle stage.
     2003年校科技园区烤烟单作物系数和基础作物系数初期阶段分别为0.93、0.24,中期阶段分别为1.17、1.12。
短句来源
     But dual crop coefficient approach is recommended for irrigation prediction and policy decision.
     但在利用作物需水量进行灌溉预报和灌溉决策,要求的时段小时,采用双作物系数法。
短句来源
     In 2002, the average daily ET of cotton in whole growth season is 1.94mm,the total ET is 337.04mm,and the average crop coefficient (kc) is 0.43 under sufficient irrigation.
     2002年充分供水情况下,在整个生育期内棉花的蒸发蒸腾量为337.04mm,平均日耗水强度为1.94mm,作物系数平均值为0.43。
短句来源
     which correlation coefficient is above 0.90.(4) In 2001, the average daily ET of cotton in the whole growth season is 1.75mm/d, the total ET is 307.48mm,and the average crop coefficient (kc) is 0.39 under deficient irrigation .
     (4)2001年胁迫供水情况下,在整个生育期棉花的蒸发蒸腾量为307.48mm,平均日耗水强度为1.75mm,作物系数平均值为0.39;
短句来源
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  crop coefficients
     (4)Under the climate conditions of Yangling in Shaanxi, if variety is no changes, basalcrop coefficients of winter wheat: Kcbini=0.25, Kcbmid=1.20, Kcbend=0.20, water stress摘要 3conditions in the mid-season stage and late season stage may influence basal crop coefficients;
     (4)在陕西杨凌地区的气候条件下,如品种无变化,正常供水条件下冬小麦的基础作物系数为:Kcbini=0.25,Kcbmid=1.20,Kcbend=0.20,冬小麦中后期水分亏缺对基础作物系数影响很大。
短句来源
     Crop coefficients were analyzed later and compared with values recommended by FAO56.Results show that: groundwater and rainfall contributed was 40%~50% of water requirement respectively and irrigation was small when groundwater depth was 0.6~0.9 m.
     分析和模拟了甜椒作物系数,并与FAO-56推荐作物系数值进行了比较。 结果表明,地下水埋深为0.6~0.9m时,地下水与降雨利用量占需水量的40%~50%,灌溉量较低。
短句来源
     The crop coefficients from FAO-56 were amended by weather parameters.
     对FAO-56推荐作物系数在数值和生育阶段进行了双重修正:采用气象数据对FAO-56推荐作物系数进行数值修正。
短句来源
     A Study on the Crop coefficients and its new Development
     关于作物系数的研究及新进展
短句来源
     The estimated results had been compared with the data measured by Lysimeter. Crop coefficients for maize calculated from crop evapotranspiration and reference evapotranspiration have been obtained.
     不同发育阶段晴天的能量分配特征 ,在此基础上估算了玉米的蒸散量 ,并对估算结果和蒸渗仪测定结果进行比较 ,最后运用作物蒸散量和参考作物蒸散量计算了玉米的作物系数
短句来源
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  crops coefficient
     The concepts of crops water requirements、reference crops evapotraspiration quantity、crops coefficient and Pengman formula are explained and the method of calculating with reference crops evapotranspiration quantity according to Pengman formula is introduced.
     对作物需水量、参照作物腾发量、作物系数、彭曼公式等概念进行了说明。 简介了彭曼公式计算参照作物腾发量的方法。
短句来源
  “作物系数”译为未确定词的双语例句
     Summer maize:Kcbini=0.25,Kcbmid=1.25,Kcbend=0.65.
     夏玉米的基础作物系数为:Kcbini=0.25,Kcbmid=1.25,Kcbend=0.65。
短句来源
     The estimated crop factors (K_c) were 1.62, 1.77, and 1.79 and the water requirement coefficients based on Chinese Evaporation Pan were 0.62, 0.68, and 0.69 for Poa pratensis, Festuca arundinacea, Lolium perenne respectively.
     计算得出草坪草作物系数K_c为:1.62、1.77、1.79和以中式蒸发皿为基础的草坪草需水系数α为:0.62、0.68、0.69。
短句来源
     the mean Kc for above vegetables were 0. 68, 0. 94 and 0. 65 mm separately;
     作物系数的平均值分别是0.68,0.94和0.65;
短句来源
     The absolute warp of Xiangcheng county at initial stage, development stage, middle stage and end stage was respectively -3mm, 5mm, -19mm, 2mm and -14mm at 2003, the relative warp was respectively 12.70%, 4.87%, -8.36% 3.08% and-3.08%;
     2003年襄城县试验初期阶段、发育阶段、中期阶段、后期阶段和全生育期双作物系数法计算的绝对偏差分别为-3mm、5mm、-19mm、2mm、-14mm,相对偏差分别为12.70%、4.87%、-8.36%、
短句来源
     This paper calculated the crops evapo-transpiration in 94 counties and cities of Shanxi using the peaman (H.L.Peaman)method and calculated the wheat water requirement ETm according to crop transpiration coefficient Kc.
     用彭曼(H.L.Peaman)法计算了全省94个县市的参考作物蒸散量,再结合作物系数Kc值计算出小麦需水量ETm;
短句来源
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  crop coefficient
When the overall crop coefficient was divided into a plant specific and a soil specific coefficients, the plant coefficient was relatively stable compared to soil coefficients.
      
Trickle irrigation was applied at the surface (0), 0.15, 0.3, or 0.45 m depths in amounts calculated using daily pan evaporation, crop coefficient, and crop development stage.
      
A lysimeter study conducted over a relatively short period revealed that the crop coefficient for Aloe vera varied between 0.25 and 0.40 which is characteristic of the so-called agave/pineapple group.
      
ETc was estimated as grass reference evapotranspiration (ET0) times a crop coefficient with adjustments based upon shaded area of trees and period during the growing season.
      
A cotton crop coefficient was modified to account for the contribution of shallow groundwater to crop water use.
      
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  crop coefficients
Screened Class A pan evaporation, adjusted by monthly crop coefficients, proved a dependable guide for irrigation.
      
Crop coefficients and water requirements of irrigated wheat (Triticum aestivum L.) in the Nigerian savannah zone
      
Crop coefficients were determined for various time intervals during each growing season using the lysimeter data and a grass-based reference crop evapotranspiration estimated with Class A pan evaporation data.
      
Mean crop coefficients for each ten-day period of crop growth were then determined.
      
Wheat crop water requirements (CWR) were then estimated for major irrigation projects in the Nigerian Sudan and Sahel savannah zones, between latitudes 10°N and 14°N, using the crop coefficients obtained and long term mean climatic data.
      
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  crop factor
The crop factor (Kc) was largely constant throughout the season with an average value of 0.48.
      
The most common approach for the estimation of crop water requirements is to pair a crop factor with the evaporation from a reference surface.
      
When mean interception and crop factor vary, drainage increases and root water uptake decreases slightly with spacing.
      
Daily transpiration measurements from heat-pulse were used to derive a crop factor, KC, for squash in this tropical maritime climate.
      
The derived seasonal pattern of KC was similar to the FAO recommended crop factor for squash.
      
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