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    Study on the Fate of Nitrogenous Fertilizer in the Black Soil.
    黑土农田化肥氮素去向的研究
    The Black Soil Culture's Integration and Re-creation of the Daur Culture
    黑土文化对达斡尔族文化的整合与再造
    Restriction Factors Analyses of Administering the "Black-Soil-type" Grassland Degeneration
    “黑土型”退化草地治理的制约因素分析
    Environmental Geochemical Characteristics of Some Microelements in the Black Soil of Jilin province
    吉林省黑土某些微量元素环境地球化学特征
    Study on Matter Accumulation and Energy Flow of Spring Wheat Population in the Black Soil Area
    黑土区春小麦群体物质和能量积累研究
    Study of evaluation systems of the black soil fertility
    论农田黑土肥力评价体系
    The Geochemical Environment Quality Evaluation on the Black Soil Region Based on GIS
    基于GIS的黑土区环境地球化学质量评价
    Analysis of the Changing Characteristics of the Soil Fertilities in the Black Soil Area of Northeast China
    东北黑土区土壤肥力变化特征的分析
    Safeguard and Sustainable Development of the Black Soil Ecosystem
    黑土农田生态系统的保育与发展
    Characteristics of Soil Temperature Dynamics in the Black Soil Area of Northeast China
    东北黑土区土壤温度变化特征
    The calculation of the black soil erosion thickness by slope erosion under rainfall
    降雨引起的坡面黑土侵蚀厚度的计算
    In this research, the methods proposed by Bremner(1965) and Bowman-Cole(1978) were adopted to study systematically the Black soil, Aquic cinnamon soil, Purple soil and Red soil, which are four typical soils of the National Monitoring Base of Soil Fertility and Fertilizer Efficiency.
    本论文以国家土壤肥力与肥料效益监测基地网为平台,选择了黑土、褐潮土、紫色土、红壤4种较为典型的土壤作为试验对象,采用Bremner(1965)土壤有机氮分级方法及Bowman—Cole(1978)土壤有机磷分级方法,对不同施肥条件下、0~100cm范围内的土壤进行了较为系统的分析研究。
    Corn is the first crop of the black soil in the Jilin province, and so with the systems analysis of soil nutrition, and with the experiments of soil potassium exhausting and filed fertilizer application, the soil potassium fixation capacity and supplying capacity, its relation with the fertilization , and the potassium uptake of the corn plant were studied.
    本文以玉米为试材,应用土壤养分状况系统研究法,选用公主岭高、中、低三种肥力黑土,采用土壤养分系统分析方法、土壤钾素耗竭试验和田间肥料试验,研究吉林省黑土的固钾能力、供钾能力及其与施肥的关系,研究玉米的吸钾特性及钾肥肥效,以期为吉林省黑土区玉米小产中钾肥的合理施用提供依据。
    3) It was studied the black soil and alluvial soil aerate rate under different soil moisture content of 9.84%, 13.84%, 17.84%, 21.84%, 25.84%, 29.84% as well as different bulk density conditions.
    3)通过对容重为1.1g/cm~3,1.2g/cm~3,1.3g/cm~3土壤在动态水分9.84%、13.84%、17.84%,21.84%、25.84%和29.84%条件下黑土和冲积土通气率的测定,研究容重和水分条件对黑土和冲积土通气率的影响。
    In the black soils under different crops, there were obvious difference in the levels of soil humidity and the residual water in soils after harvest of crops.
    因此,不同作物下黑土农田的水分状况,表现在土壤湿度水平、各水分时期出现时间、作物收获后残留土壤中的水量等方面均有明显区别。
    The N5 P8 K5 in the black soil and black calcareous soil. The root yielp increased about 35.2% than check in plot,the sugar content increased 0.82%,sugar yield increased about 42.7%.
    N_5P_8K_5小区根产量比对照增加35.2%,含糖增加0.82度,产糖量增加42.7%;
    Same trend was found from the field experiment, K application increased corn yield by 39. 1% in the aeolian sandy soil, 24. 5% in the light chernozem soil, and 14. 9% in the black soil.
    田间试验亦有相同趋势,在风砂土、淡黑钙土和黑土试验地上施用钾肥分别使玉米增产39.1%、24.5%和14.9%。
    The establishment of the Black soil erosion dynamic database provides the scientific means and basic data for the rational exploitation and utility of Black soil resources, and provides the background data for the access and analysis of regional resources and environment.
    黑土侵蚀强度动态数据库的建立为治理和合理开发利用黑土资源提供了科学手段和依据 ,为区域资源环境评价、分析提供了背景数据
    Under the combination supply of N,P,and K fertilizers,the black soil nutrient supplement was increased significantly,and the soil could provided maiz with N 145.5kg hm~(-2),P_2O_5 84.2kg. hm~(-2) and K_2O 160.7 kg.
    在氮磷钾配合施用条件下,黑土农田土壤养分的供给能力大幅度增加,土壤可以供氮145.5kghm-2、供磷84 2kghm-2、供钾160.7kghm-2;
    There was great difference on yield increase amounts to maize for potash fertilizer on different type of soil and it increased yield by 15.1% on the black soil, 20.4% on the light chernozem soil and 38.8% on the aeolian sandy soil.
    钾肥在不同类型土壤上对玉米增产数量有较大差异,在黑土上增产15.1%,淡黑钙土上增产20.4%,风沙土上增产38.8%。
 

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