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水分养分
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  water and nutrient
    Effects and Mechanisms of Elevated Atmospheric CO_2 and Temperature on Water and Nutrient Use in Wheat
    CO_2浓度和气温升高对小麦水分养分利用的效应和机制研究
短句来源
    The effects and mechanisms of atmospheric CO2 enrichment and temperature rise on water and nutrient use in wheat were studied in this thesis using the chamber pot experiment and open top experiment.
    本研究通过人工气候室盆栽试验和开顶式试验研究了大气CO_2浓度升高对小麦水分养分利用的效应和机制。 CO_2浓度升高盆栽试验设350和700μmol mol~(-1)2种CO_2浓度水平,湿润、干旱2种土壤水分处理和0、50、100、150、200mg kg~(-1)5种N肥施用水平。
短句来源
    WINTER WHEAT ROOT DISTRIBUTION AND SOIL WATER AND NUTRIENT AVAILABILITY
    不同灌溉策略下冬小麦根系的分布与水分养分的空间有效性
短句来源
    Influence of Cultivation Method by Means of Plastic Mulching and Rain Harvesting on Water and Nutrient Uptake as Well as Yield of Winter Wheat and Summer Maize in Semi-humid Prone to Drought Area
    覆膜集雨栽培对半湿润易旱地区作物水分养分吸收及产量的影响
短句来源
    Therefore, it is very important to study the condition and mechanism of water and nutrient cooperation, in order to develop the water and nutrient interaction, to improve the use efficiency.
    要做到这一点,就必须查明不同阶段水分养分亏缺对作物所造成的影响,亏缺所造成的生理伤害,明确补偿的有效条件及机制,而这一方面的研究尚非常缺乏。
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  water and nutrients
    Effects of Partial Root-Zone Irrigation on Water and Nutrients Use of Sweet Corn Under Different Fertilization Condition
    不同施肥条件下根区局部灌溉对甜玉米水分养分利用的影响
短句来源
    Field experiment was conducted to investigate root distribution of winter wheat and the spatial availability of soil water and nutrients under different irrigation strategies: High frequency with low amounts (HL) and low frequency with high amounts (LH).
    通过田间试验研究了少量多次和少次多量的灌溉方式下冬小麦根系的分布与水分养分的空间有效性。
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  “水分养分”译为未确定词的双语例句
    Effect of Alternate Partial Root-Zone Irrigation on Growth and Water Use and Nutrient Use of Sweet Corn and Lichee
    分根区交替灌溉对甜玉米和荔枝生长和水分养分利用的影响
短句来源
    Impact on Soil Moisture and Nutrient as well as Winter Wheat Yield with Moisture Conservational Tillage in Channel Irrigate Area
    半湿润渠灌区保墒灌溉对冬小麦水分养分及产量的影响
短句来源
    Plant expriments including winter wheat, corn andcotton were engaged respectively in PVC pipe and soil colunm toprobe how lateral depth and emitter flow rate affect water and nitratedistribution, further more, affect crop growth and yield formationthrough affecting the distribution of water and nitrate in root zone.
    作物试验分别以夏玉米、冬小麦、棉花为供试材料进行PVC管栽试验和均质土柱试验,以研究在不同埋深和滴孔流量条件下如何通过影响水分养分分布,来影响作物根系分布、水分养分吸收利用,进而影响作物的生长发育与产量形成。
短句来源
    Ameliorated root system was able to improve crop water use and nutrient absorption,and hence,crop yield and water use efficiency was increased.
    施肥能够促进春小麦根系的生长发育,特别是促进浅层根量的增加,增强了作物的水分养分吸收.
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  water and nutrient
Role of canopy interception on water and nutrient cycling in Chinese fir plantation ecosystem
      
It inhibits root cell division and elongation, thus reducing water and nutrient uptake, consequently resulting in poor plant growth and yield.
      
Hence, this species will be more efficient in water and nutrient uptake in the seedling stage.
      
The gut is an important athletic organ because it mediates water and nutrient uptake during exercise.
      
The gut is sensitive to water and nutrient intake during exercise and to hypovolemia, hyperthermia, hypoglycemia, hypoxia, and ischemia.
      
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  water and nutrients
One of the major functions of the root system is uptaking water and nutrients from the soil.
      
Proper training and nutrition minimize the risk of gastrointestinal discomfort during exercise by assuring rapid gastric emptying and absorption of water and nutrients and by maintaining adequate perfusion of the splanchnic vasculature.
      
hispidum functions as a temporary host providing water and nutrients to those two pentatomid pests of soybean.
      
In this research, a tree is regarded as a carbon fixation reactor with inflows of water and nutrients from roots, and CO2 as the carbon source from leaves with outflow of water vapor from leaves and accumulation in the tree itself.
      
These would lay a foundation for lessening the pollution of dairy manure, increasing fertilizer efficiency and exploring a late-model organic fertilizer that retains water and nutrients.
      
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Experiments on soil water stress at different developing stage ofwinter wheat floret showed that there was no siginificant effect on thetotal number of florets,however,it increased the number of degenerat-ed florets and spikelets,especially in the polarized differentiation stageand differentiation stage.Soil water stress not only directly influencedthe degeneration of florets and seed-setting,but also inhibited the ab-sorption of the plants on nitrogen and phosphorus.The contents ofsoluble nitrogen,amino-acid,total...

Experiments on soil water stress at different developing stage ofwinter wheat floret showed that there was no siginificant effect on thetotal number of florets,however,it increased the number of degenerat-ed florets and spikelets,especially in the polarized differentiation stageand differentiation stage.Soil water stress not only directly influencedthe degeneration of florets and seed-setting,but also inhibited the ab-sorption of the plants on nitrogen and phosphorus.The contents ofsoluble nitrogen,amino-acid,total nitrogen and inorganic phosphorus instem sheaths were lower when soil water was deficient.The inhibitionof the growth of wheat plant due to the deficiency of water and nut-rient accelerated the construction of plant organs which resulted in anincrement of degenerated florets and eventually caused a decrease ofgrain number.

冬小麦小花发育的不同时期遇到土壤干旱,对小花总数没有明显影响。但各处理间在成花数和结实数上的差异十分显著,以小花两极分化期缺水,对成花数下降影响最大;小花分化期缺水,穗粒数减少最多。除土壤水分不足直接地影响成花与结实外,还由于缺水阻碍了植株对氮、磷的吸收。各处理在缺水期间茎鞘中的硝态氮、氨基酸、全氮和无机磷的含量都低于对照。可见,缺水造成的开花、结实率低,在很大程度上也是营养条件恶化的结果。土壤水分亏缺所造成的水分、养分的短缺,使植株各器官的生长量减少,但却加速了发育进程,从而导致发育不完善的小花增加,最终造成穗粒数下降。

The study on cultivation method of soybean with thin stand and less tillage and plastic membrane mulching (TLC) was conducted from 1985 to 1986. Two varieties of soybean (Glycine Max (L) Merrill) with 3 treatments were grown in randomized block design with 3 replications. Results of the experiment indicated that: The soil temperature of treatment with plastic mulching was raised due to the greenhouse effect. The mean temperature at 0-25cm of soil was increased 1.56-3.04℃ and the growth period was 9-14 days shorter...

The study on cultivation method of soybean with thin stand and less tillage and plastic membrane mulching (TLC) was conducted from 1985 to 1986. Two varieties of soybean (Glycine Max (L) Merrill) with 3 treatments were grown in randomized block design with 3 replications. Results of the experiment indicated that: The soil temperature of treatment with plastic mulching was raised due to the greenhouse effect. The mean temperature at 0-25cm of soil was increased 1.56-3.04℃ and the growth period was 9-14 days shorter than those of control. The soil moisture was preserved and saved by covered with plastic membrane which increased the utilization ratio of water, and productive efficiency of moisture increased 53,1-75.0% than that of control during growth period, and had out standing effect for resisting drought. The amount of soil microbes iucrcased by plastic mulching which is advantageous to the decomposition of soil nutrient. The nitrogen dissolved by alkali and available phosphorus increased 50.0% and 14.9% respectively, so it supplied abundent nutrient for soybean growth.Being due to the complex action of these factors, soybean grow under the optimum growing condition. The economic yield was 2630.8-4317.0 kg/ha, it increased 17.3-72.7% than that of ordinarg seeding method.

我所于1985—1986年在所内外开展了大豆地膜覆盖试验——大豆稀、少、覆栽培法的研究工作。试验分为地膜覆盖和露地直播(对照,参考对照)密植栽培三个处理,供试品种为密枝1号和嫩丰11,三次重复,随机排列。研究结果表明,覆盖栽培,由于提高地温,(0—25cm平均地温比直播增温1.56—3.04℃)提前成熟9—14天。覆膜保墒节水,提高水的利用率,生育期水分生产效率比对照增加53.1—75.0%,对抗御干旱起到了卓有成效的作用。覆膜使土壤微生物数量增加,有利于养分分解,苗期的碱解氮、速效磷分别比直播增加50.0%和14.9%。为大豆生长发育提供了充足的养分。协调大豆生长发育环境中的热量、水分、养分、气体的组合,这些综合因素作用,使大豆生长发育沿着最佳的生物轨道运转。经济产量每公顷达到2630.8—4317.0kg,比露地直播增产62.4—72.7%。

Based on water, nutrient, air and temperature, the four essential fertilities to the ground of plant, the feasibility and advantages of textile fibre as a substitute for soil were described in this paper. Several indexes determining fertilities of fibre culture medium, their measuring and ca Lculating methods were presented. Furthermore, many kinds of vegetables and flowers were cultivated in the fibre culture medium, and some good results were obtained.

本文就植物生长必需的水分、养分、空气和温度四大肥力因素,详细地阐述了纺织纤维代替土壤作为植物栽培基的可行性和优越性。提出了衡量纤维栽培基肥力的指标、测试和计算方法。并用非织造布做栽培基进行了蔬菜和花卉的实物栽培,取得了良好的效果。

 
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