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maize fields
相关语句
  玉米田
    POPULATION STRUCTURE AND LIGHT DISTRIBUTION IN MAIZE FIELDS
    玉米田的群体结构与光能分布
短句来源
    Experiment on Weed Control Effect of 28 % Acetochlor + Metribuzin to Maize Fields
    28%乙·嗪悬乳剂防除玉米田杂草研究
短句来源
    Spatial variability of soil water content and bulk soil electrical conductivity was analyzed in the two 10m×10m area of summer maize fields for two nitrogen fertilizer treatments by the classical statistics and geostatistics.
    应用传统统计学和地统计学方法 ,分析了 2个氮肥用量间夏玉米田间 2个 10 m× 10 m区域土壤含水量和电导率的空间变异性 ,在此基础上 ,应用普通克立格技术估算了未知点的土壤含水量和电导率 ,并确定了 2种土壤特性的合理采样数目。
短句来源
    Seasonal characteristics of arthropod communities in maize fields
    玉米田节肢动物群落特征的时序动态
短句来源
    Temporal and spatial variation and forecast of soil temperature in maize fields
    玉米田地温的时空变化特征及其预报
短句来源
更多       
  玉米田
    POPULATION STRUCTURE AND LIGHT DISTRIBUTION IN MAIZE FIELDS
    玉米田的群体结构与光能分布
短句来源
    Experiment on Weed Control Effect of 28 % Acetochlor + Metribuzin to Maize Fields
    28%乙·嗪悬乳剂防除玉米田杂草研究
短句来源
    Spatial variability of soil water content and bulk soil electrical conductivity was analyzed in the two 10m×10m area of summer maize fields for two nitrogen fertilizer treatments by the classical statistics and geostatistics.
    应用传统统计学和地统计学方法 ,分析了 2个氮肥用量间夏玉米田间 2个 10 m× 10 m区域土壤含水量和电导率的空间变异性 ,在此基础上 ,应用普通克立格技术估算了未知点的土壤含水量和电导率 ,并确定了 2种土壤特性的合理采样数目。
短句来源
    Seasonal characteristics of arthropod communities in maize fields
    玉米田节肢动物群落特征的时序动态
短句来源
    Temporal and spatial variation and forecast of soil temperature in maize fields
    玉米田地温的时空变化特征及其预报
短句来源
更多       
  “maize fields”译为未确定词的双语例句
    A Study of Effects of Plastic Film on Soil Temperature in High Irrigated and Fertile Maize Fields
    高水肥地覆膜玉米温度效应研究
短句来源
    Origins of soil organic carbon with the method of natural~(13)C abundance in maize fields
    用天然~(13)C丰度法评估贵州茂兰喀斯特森林区玉米地土壤中有机碳的来源
短句来源
    Automatically Extracting Information Form Maize Fields based on TM Remote Sensing Images
    基于TM遥感影像的玉米地专题信息自动提取
短句来源
    Soil Respiration and Carbon Balance in Winter Wheat and Summer Maize Fields
    冬小麦夏玉米农田土壤呼吸与碳平衡的研究
短句来源
    The experiments indicate that the stable infiltralion ration in medic fields is 1.009mm/min, 33% more above that in maize fields.
    试验研究表明,苜蓿地稳定入渗速率为1.009mm/min,比玉米地等高33%以上。
短句来源
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  maize fields
density) in a given conventional maize field, (2) mean and variation of a specific variable in conventional maize fields in the last five years and (3) mean and variation of a specific variable in conventional maize fields within a given year.
      
Canonical corresponding analyses revealed small but statistically significant differences in community composition between Bt and conventional maize fields.
      
This study was done over two consecutive years on two irrigated maize fields in eastern Colorado.
      
Primary hygrophilous grassland and hill slope seepages were the main repository for indigenous plant diversity, while communal maize fields supported a diverse mixture of mainly exotic species.
      
S2: maize straw in the dry season, cut pasture forage, grazing of native grass, weeds from maize fields, and 1.0-1.5 kg concentrate/heifer per day.
      
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(1)The population structure varies with the age and growth of the plant.The leafarea and dry matter increase greatly from the stage of node elongation to that of pollina-tion.During this period,the ears begin to grow fast.Organic matters are translocated tothe ears from other organs of the plant during time of pollination to maturity stage.Hence,the center of gravity of the population structure moves down to the middle part of the maizefields.In analyzing the results of the population structure,the vertical...

(1)The population structure varies with the age and growth of the plant.The leafarea and dry matter increase greatly from the stage of node elongation to that of pollina-tion.During this period,the ears begin to grow fast.Organic matters are translocated tothe ears from other organs of the plant during time of pollination to maturity stage.Hence,the center of gravity of the population structure moves down to the middle part of the maizefields.In analyzing the results of the population structure,the vertical distribution of light,and the grain yields of the maize fields,it is found that a population of 3000 plants per mowis more reasonable than that of 2000 or 4000 plants per mow.(2)In the maize fields,the vertical distribution of light varies with the density of thepopulation structure.The transmission of light to the field decreases as the density of themaize increases.In case there is a population of 3000 or 4000 plants per mow,the leaf dis-tribution in the middle part of the maize fields is comparatively uniform,and so the verticaldistribution of light may well be represented by the Beer-Lambert equation.However,thesituation is different in the upper and the lower parts of the maize fields in that its leaf dis-tribution is not very uniform.In the fields of a population of 2000 plants per mow,the leafdistribution is far from being uniform even in the middle part,and so the Beer-Lambertequation is not applicable in this case.(3)The maize fields as well as other kinds of fields show a system of autoregulation.Both the area and the extending direction of the leaves vary with the planting density andthe irradiation of the population structure.This autoregulation is carried out through re-generation.

玉米田的群体结构和光能分布随密度而异,与播方式的关系不大。就结构与光分布而论,以每亩3,000株的最为理想亦最有利于高产。玉米叶片的伸展方向,可以通过叶片的向光性来自动调节。

This paper deals with the spatial distribution pattern of the egg-masses of Ostrinia furncalis ( Giienee) . The egg-masses in the late maize field are the aggregation pattern. The data from seve field investigations were analyzed by dispersal rate (S~2 x~(1/2)) , mean aggregation ( λ) , index of mean crowding ((?)) parameter of megative binomial (K), Iwao's method and Taylor's power law. The theoretical sampling numbers were decided, under D = 0.2, with negtive binomial sampling formula. Five sampling...

This paper deals with the spatial distribution pattern of the egg-masses of Ostrinia furncalis ( Giienee) . The egg-masses in the late maize field are the aggregation pattern. The data from seve field investigations were analyzed by dispersal rate (S~2 x~(1/2)) , mean aggregation ( λ) , index of mean crowding ((?)) parameter of megative binomial (K), Iwao's method and Taylor's power law. The theoretical sampling numbers were decided, under D = 0.2, with negtive binomial sampling formula. Five sampling methods, single diagonal, double diagonal, chessboard form, zigzag form and big five points, are compared with one another, the formula of sequential sampling is established.

通过7次田间调查,结果用扩散系数(S~2/x)、聚集均数(λ)、平均拥挤度(X)、负二项分布参数(K)、Iwao方程和Taylor指数的分析,晚玉米上玉米螟卵块为聚集分布。并用负二项抽样公式在D=0.2的条件下,决定理论抽样数,对单对角线、双对角线、棋盘式、“Z”形和大五点等五种抽样方法作了抽样比较。决定了序贯抽样公式。

The super-absorbent resin (SAR) was used in a maize field in different growth period with different quantity. The results showed that under the state of abundant rainfall, the treatment that the seed mixed with paste SAR could be promoted sproutine two days early; if the seed mixed with power SAR it would cause waterlogging heavily. At the later stage meating drought, though the maize was suffered from waterlogging at earlier stage, the yield of maize applying SAR was yet higher than that of...

The super-absorbent resin (SAR) was used in a maize field in different growth period with different quantity. The results showed that under the state of abundant rainfall, the treatment that the seed mixed with paste SAR could be promoted sproutine two days early; if the seed mixed with power SAR it would cause waterlogging heavily. At the later stage meating drought, though the maize was suffered from waterlogging at earlier stage, the yield of maize applying SAR was yet higher than that of the check. When the SAR was applied before heading stage, the yield of maize showed higher than that of SAR application in other stages.

按玉米不同生育期施入不同量的高吸水性树脂(Super-absorbent resin简称SAR)进行正交试验,结果表明:在雨量过多的情况下,用SAR糊状拌种可提前出苗2天,用SAR粉状播种前撒施的,随着SAR的增加涝害越重;在后期干旱情况下,施用SAR的小区虽前期受涝,产量仍高于未施用SAR的小区;喇叭口期施用SAR多的小区产量优于施用量少的小区,也优于用等量分两次(播种期、喇叭口期)施用的小区,更优于没有施用的小区。

 
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