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  application
    Effect of Potassium Application on Yield and Quality of Flue-cured Tobacco and Changes of Soil Potassium on Yellow Brown Earth
    黄棕壤钾对烤烟产量和品质以及土壤供钾变化的影响
短句来源
    Status of Soil Zinc and Effect of Zinc Fertilizer Application in Rice-Growing Area of Yellow River Basin in Henan Province
    河南省沿黄稻区土壤锌素状况及锌效果
短句来源
    Nutritive Effects of Nitrogen Application on Zn,Mn,Fe and Mo in Malting Barley
    氮水平对啤酒大麦Zn、Mn、Fe、Mo营养效应的研究
短句来源
    Effect of combined application of organic and inorganic fertilizers on CH_4emission from paddy soil.
    有机无机肥混对水稻土CH_4排放的影响
短句来源
    The results indicated that during the incubation periode the application of phosphorus fertilizer increased the contents of Ca2-P and Ca8-P significantly,but had little effect on those of A1-P,Fe-P and O-P.
    结果表明:入盐土中的无机磷在短期内主要增加土壤中的Ca2-P和Ca8-P的含量,而对A1-P、Fe-P和O-P的影响较小;
短句来源
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  applying
     ̄(15)N ABSORPTION BY RICE AND NITROGEN BALANCE SHEET WHEN SINGLY OR MIXEDLY APPLYING RICE STRAW(15N)AND UREA(15N)
    稻秆(~(15)N)和尿素(~(15)N)单或混时,水稻对标记氮的吸收与1
短句来源
    EFFECT OF APPLYING POTASSIUM ON CROPS AND SOIL
    钾对作物和土壤的效果
短句来源
    Effect of Applying Nitrogen on Grain Protein in Durum Wheat and Common Wheat
    氮时期对硬粒小麦和普通小麦籽粒蛋白质的影响
短句来源
    Applied Research of Se on Rice Ⅲ Research of Influence on Rice Production and Qualitative of Se Content of Rice field Soil and by Applying Se
    硒在水稻上的应用 Ⅲ.稻田土壤硒含量及硒对水稻产量与米质的影响
短句来源
    Study of Potassium Distribution Characteristics in Flue-cured Tobacco Plant upon Different Applying Amount of Fertilizer by 86 Rb
    应用~(86)Rb研究不同钾量在烤烟中钾的分布规律
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  applied
    Study on the Yield-increased Mechanism and Effectiveness of Sulphur Applied in High-yield Maize
    高产玉米硫增产效应与机制研究
短句来源
    Applied Research of Se on Rice Ⅲ Research of Influence on Rice Production and Qualitative of Se Content of Rice field Soil and by Applying Se
    硒在水稻上的应用 Ⅲ.稻田土壤硒含量及硒对水稻产量与米质的影响
短句来源
    Regression coefficients showed a possible source of POC in water-stable aggregates from increased crop biomass in topsoil(0-5cm) and organic matter applied in sub-surface layer(5-15cm).
    土壤不同层次水稳性团聚体中POC的来源不同,在0~5 cm表层可能主要来源于作物根茬生物量,而在5~15 cm土层则可能跟入的外源有机物有关。
短句来源
    The ammonia-volatilization varied from 0.67 to 5.16kg/ha among different N-treatments,accounting for 0.74%-2.24% of N applied in Spring.
    氨挥发积累量在0.67~5.16 kg/hm2,占入氮素的0.74%~2.24%。
短句来源
    According to function of fertilizers effect, the quantity of the best economic fertilization brought up in standy loam chestnut soil (A) and mindium loam meadow chestnut soil (B): as the fertilizers of N. P applied alone: N1=61.9kg. hm-2, P, (P2O5) = 53.3kg.
    根据其肥料效应函数,提出了旱砂地(A)和早滩地(B)的经济最佳肥量为:单N=61.9kg/hm~2P_2O_5=53.3kg/hm~2。
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  fertilizer
    The Technique and Effect of Deep Placement of Ammonium Bicarbonate and Urea by 2FT-1 Type Fertilizer Applicator
    用2FT-1型追肥机深碳铵、尿素的技术与肥效
短句来源
    POTASSIUM STATUS IN GRANATIC SOIL AIID THE EFFECT OF K FERTILIZER IN TONGHAN COUNTY, HUBEI PROVINCE
    湖北通城县花岗岩母质发育的土壤缺钾与钾效果
短句来源
    THE INFLUENCE OF ORGANIC MANURE COMBINED WITH CHEMICAL FERTILIZER ON TRANSFORMATION AND SUPPLY OF PHOSPHORUS IN PURPLE PADDY SOIL
    有机肥与化肥配对紫色水稻土磷素转化与供应的影响
短句来源
    Potash Status in Calcareous Soil and the Effect of Potassium Fertilizer on Wheat in the South of Shanxi Province
    晋南石灰性土壤钾素变化及小麦钾效果
短句来源
    Status of Soil Zinc and Effect of Zinc Fertilizer Application in Rice-Growing Area of Yellow River Basin in Henan Province
    河南省沿黄稻区土壤锌素状况及锌效果
短句来源
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      application
    As an application we produce complete hyperbolic 5-manifolds that are nontrivial plane bundles over closed hyperbolic 3-manifolds and conformally flat 4-manifolds that are nontrivial circle bundles over closed hyperbolic 3-manifolds.
          
    As an application of the results we prove a generalization of Chevalley's restriction theorem for the classical Lie algebras.
          
    The proof is an application of a recent result by W.
          
    The application arises because of a very strong homological property enjoyed by certain cell filtrations forq-permutation modules.
          
    We give as an application a family of singular Schubert varieties.
          
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      applying
    Using the properties ofn-Hopf algebras we show that certain spaces do not admit the structure of ann-valued group and that certain commutativen-valued groups do not arise by applying then-coset construction to any commutative group.
          
    A basis is calledmonomial if each of its elements is the result of applying to a (fixed) highest weight vector a monomial in the Chevalley basis elementsYα, α a simple root, in the opposite Borel subalgebra.
          
    Our lower bound comes from applying a decomposition theorem for "hyperbolic localization" [Br] to this torus action.
          
    We then clarify the results by applying the theory of von Neumann algebras.
          
    We present here a self-contained derivation, building the decomposition from basic principles such as the Euclidean algorithm, with a focus on applying it to wavelet filtering.
          
    更多          
      applied
    The theory is applied to the case of cubic hypersurfaces, which is the one most relevant to special geometry, obtaining the solution of the two classification problems and the description of the corresponding homogeneous special K?hler manifolds.
          
    These results are applied to the theory ofcompactly causal symmetric spaces: we describe explicitly the complex domain Ξ associated to such a space.
          
    This paper shows how the Kazhdan-Lusztig theory of cells can be directly applied to establish the quasi-heredity ofq-Schur algebras.
          
    In [Ka1] its geometric counterpart was applied to construct contractible smooth affine varieties non-isomorphic to Euclidean spaces.
          
    In the final section the theorem is applied to gradient actions on other homogeneous spaces and we show, that Hilgert's Convexity Theorem for moment maps can be derived from the results.
          
    更多          
      fertilizer
    Effects of solid water and foliar fertilizer on survival and growth of seedlings in sand prevention and control
          
    To promote afforestation in sandy lands and increase the effects of prevention and control of desertification, the application of a new drought-resistant product-solid water and foliar fertilizer "Shifengle"-was studied.
          
    A comparison of three treatments (solid water, foliar fertilizer, and control) showed that both solid water and foliar fertilizer increased plant survival rate by 10% and 18.2%, respectively.
          
    Ltd had a higher carbon conversion of 3%, a lower specific oxygen consumption of about 8%, and a lower specific carbon consumption of 2%-3% than that of Texaco CWS gasification at the Lunan Fertilizer Plant.
          
    The results show that fertilizer and soil are important factors determining the aerosol particle over agricultural fields, and vegetable fields in suburban Beijing contribute significantly to the aerosol particle.
          
    更多          


    The present paper reports studies on the relative rate of decomposition of nine different oil cake-meals [soybean, peanut, sesame, rape seed, cotton seed(with and without hull), chinese tallow seed (with and without hull)]. In the course of decomposition of the different oil cake-meals, freguent measurement were made of the quantity of evolved CO_2 gas, and amount of the NH_4~+, NO_3~-, and NO_2~- nitrogen formed at the given intervals of the day. These measurement served as indices of the intensity of decomposition...

    The present paper reports studies on the relative rate of decomposition of nine different oil cake-meals [soybean, peanut, sesame, rape seed, cotton seed(with and without hull), chinese tallow seed (with and without hull)]. In the course of decomposition of the different oil cake-meals, freguent measurement were made of the quantity of evolved CO_2 gas, and amount of the NH_4~+, NO_3~-, and NO_2~- nitrogen formed at the given intervals of the day. These measurement served as indices of the intensity of decomposition and rate of ammonification and nitrification of the oil cake-meals that may be occur in the soil. These studies were performed in the laboratory, under room temperature condition of the summer season. All cakes were ground into meals to such particle size as to pass through a 20-mesh sieve. The cake-meals were separately mixed with cultivation soil in the proportion of one part of cake-meal to hundred parts by weight of soil. The soil used was of alluvial origin, low in organic matter and somewhat sandy in texture. It was found that decomposition of the cake-meals began soon after their application to the soil. The daily evolution of CO_2 reached its maximum for about one week. Immediately after that, the daily evolution of CO_2 declined rapidly to a such lower level and attained a rather steady declining rate after about two weeks. The trends were common in character irrespective of the kind of the cake-meals. Among the organic constituents of tile cake-meals that underwent into decomposition in the early days, nitrogeneous organic compou ads seemed to be of major importance. The production of ammonium compounds as a result of ammonification followed a trend similar to that shown by the evolution of CO_2. The maximum rate of ammonification was noticed sometime before the evolution of Co_2 had reached a maximum. The positive correlation existing between the total nitrogen content of the oil cakes and the rate of ammonification was evident. Other factors, however seemed to be also affecting the status of transformation of Nitrogen compounds. Nitrate compounds began to appear soon after ammonification had proceeded to an appreciable degree. In the course of decomposition their accumulation in the soil increased steadily with the time. Small amounts of nitrites were found under the experiment conditions which were characterized by low moisture content (25%) of the soil and meal mixtures. From the quantity of the total available nitrogen accumulated at different intervals in the course of decomposition as in the case here given, it seemed that some nitrogen might be lost through volatilization of ammonium compounds, since the soil was alkaline in reaction (the soil here used had a PH value of 7.2) Soaking the cake meals with water, lime-water, or straw-ash extract as sometimes practiced by the local farmers in some districts in Chekiang province brought about the effect of hastening ammonification and nitrification processes. But, gain in readiness of availability of the meals by this hastening effect might not compensate for the loss in total amount of available nitrogen formed. The loss was particularly evident when the cake-meals were pretreated with lime-water or straw-ash extract. It is believed that the alkaline reaction of the treated cake-meals accounts for this loss. The relative readiness of decomposition of the different oil cake-meals followed in descending order: soybean, sesame, peanut, Cotton seed (without hulls)>Cotton seed (with hulls), rape seed>Chinese tallow seed (with and without bulls). Similarly, the relative total amount of available nitrogen (including ammonium and nitrate nitrogen) formed during decomposition shows in the following order: soybean, peanut, sesame, chiness tallow seed(without hulls)>Cotton seed (with and without hulls)>rape seeds>Chiness tallow seed (with hlls).

    研究了浙江省用的九种主要餅肥在土壤中分解的情况,各种餅肥都經磨碎,并通过20孔篩。实驗証明,在夏天的温度下,餅肥入土壤后即迅速分解,它的分解最盛时期是在一星期左右,此后即迅速下降,到二星期后,即漸趋穩定。餅肥入土壤后,铵态氮的大量發生是在一星期以內,此后即迅速降低,轉化成硝酸态氮。硝酸态氮在一星期到二星期的时間内开始大量發生,到二星期后就漸趋穩定。土壤中有效态氮总量在各个形态轉化的过程中,有顯著的減少趋势。餅肥在入土壤前用石灰、草灰或水处理一星期,可提早土壤中有效氮的發生,其中單用水处理的效果尤其好。实驗証明,用石灰或草灰处理餅肥,使有效态氮大量損失,而用水处理則沒有这种情况。在本实驗的条件下,各种餅肥的分解速率依次为:豆餅、芝麻餅、花生餅、棉仁餅>棉籽餅、生菜餅、熟菜餅>桕餅、青餅。各种餅肥中氮素化合物转化后所產生的有效态氮总量依次为:豆餅、花生餅、芝麻餅、青餅>棉仁餅、生菜餅、棉籽餅>熟菜餅>桕餅。

    ~~

    研究了溶性磷盐在红壤中的转化以及影响这种转化的因子。在试验的条件下,溶性磷盐入红壤后,迅速向磷酸铁铝方向转化,并且温度可以加速这种转化速度。除去活性R_2O_3可以使磷的固定量减少至原先土壤的12—19%,而用人工方法将脱去R_2O_3的土壤再包上Fe_2O_3,则其固定量几接近于原始土壤。在试验条件下,同一种土壤在一定的pH 范围内,pH 似乎不至显著影响磷的存在状态。

    ~~

    本文对华东地区5种不同类型水稻土干土作用的增产效果进行了研究。凡经过干燥处理的水稻士,对水稻的植株高度、有效分蘖数以及单穗重量一般都有良好影响,因此水稻产量均有增加趋势、特别是配磷、钾肥料,增产尤为显著。从本文试验的结果看来,虽然干土作用与有机质的矿化有很大关系,但土壤pH 值、交换性阳离子及其他矿质营养元素均有影响。磷、钾的关系尤为密切。土壤的干干湿湿是稻田耕作上的一个重要问题。本文讨论了干湿过程对灌水期间各类水稻土的铵态氮素、氧化还原电位、酸度、亚铁离子的影响,指出稻田初灌以后的前期是土壤中生物化学作用最为旺盛的一个时期,而稻田耕作上的干干湿湿,是影响土壤中氧化还原平衡体系的一项有力措。在水稻栽培期间,这种平衡体系的破坏与建立是促进水稻土有机物的矿化和发挥稻田潜在地力的必要过程。本篇着重讨论了渍水土壤酸度变化的规律及其影响,同时指出土壤酸度变化与发挥水稻土潜在地力的关系。

     
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