The peasants ploughed the weeds in the field back to enrich the soil.
农民把地里的杂草犁入土中来肥田地。
The colors could also be caused by an effect called magnetic sweeping, in which charged particles in Saturn's magnetic field sweep over Rhea and become implanted in the soil.
色彩也可能是由一种被称作“磁扫”(magneticsweeping)的现象引起的，磁性粒子在土星磁场的作用下扫过土卫五，嵌入到土壤中。
At the end of the cultivation period, the biodegradable mulches were broken up and buried in the field soil together with the plant residues.
在去年底的培养期间，可生物降解的覆盖物被打破和埋葬在外地的土壤与植物残留物。
Field experiments was used to study the change of soil N2O discharge flux in the northwestern arid and semi-arid areas.
田间试验研究了西北干旱半干旱地区地膜覆盖对土壤中n 2o排放通量变化的影响。
Based on soil water infiltration testing and related parameters measured in field, tillage soil water infiltration capacity attenuation process was analyzed and the mechanism was discussed.
基于大田土壤水分入渗试验与相关参数的测定，分析了耕作土壤入渗能力衰减过程，探讨了耕作土壤入渗能力衰减机理。
The variation of soil water, salinity and temperature in the field makes the coupled transport processes of them very complicated.
田间土壤水分、盐分和温度变化使水、盐、热耦合迁移的过程极其复杂。
The field survey and the data analysis show that the cause of soil drying in the Loess Plateau of northern Shannxi has two aspects: natural causes and anthropogenic causes.
野外调查和资料分析显示，陕北黄土高原土壤干化原因有两个方面：一是自然原因；二是人为原因。
The content of soil pollutants in the studying area is tapering off with lasting dreg field blowdown ditching.
研究区土壤中的污染物含量随着与弃渣场排污沟距离的增大呈递减的趋势。
Based on the field investigation and soil analysis, some soil physical and chemical properties in different agroforesty systems in northern area of Jiangsu province were studied.
采用野外调查与室内分析测定的方法，研究了苏北地区林粮间作地土壤理化性质。
The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
The relationship between microbiotic crust and soil hydrology has been being the most disputed hotspot in the microbiotic soil crust research field.
微生物结皮与土壤水文过程的关系一直是微生物结皮研究中最具争议性的热点问题。
This paper studies the relationship between content of organic matter and water evaporation in black soil under the condition of field and laboratory.
探讨了在田间及实验室条件下的土壤的有机质含量与土壤水分蒸发的关系。
The model can be used to analyze the effects of tractor and soil strength parameters on tractor performance, It is a useful tool for optimizing tractor performance in the field.
该模型可用来模拟田间试验、研究土壤强度和拖拉机参数对拖拉机作业性能的影响，对拖拉机使用性能的研究将起到一定的作用。
The soil moisture is measured in the field by time domain reflectometry , neutron probe and soil sampling, The results showed that the measured values are different.
应用时域反射仪、中子仪和上钻法测定了农田土壤水分，并对农田土层含水量和主体贮水量的测定结果进行了比较。
In a soil column culture and a field experiment, the comparison of root distribution of spreading-leaf and upright-leaf maize cultivars in Songnen Plain was studied.
采用土柱模拟栽培法与大田试验相结合的方法，对松嫩平原不同株型玉米的根系分布特征进行了比较。
Determined the residue of fluroxypyr in paddy field water and soil by derivative reaction and GC.
通过衍生化反应和气相色谱检测来测定稻田水、土壤样品中氟草烟的残留。
Study on the engineering geology property of the rock-mass and soil-body is always the keystone in the water and electricity field.
工程区岩土体的工程地质性质研究历来是水利水电工程中研究的重点。
Therefore, on the soil of phosphorus adsorption and desorption of organic phosphorus research, has increasingly become in the field of soil chemistry problems a concern.
因此，关于土壤对磷的吸附、解吸及有机磷组分的研究，已经日益成为土壤化学领域中的一个受人关注的问题。
But after 4 months in field trial, 90% potassium entered the soil.
而在大田试验中4个月后，有90%的钾进入土壤。
The problem of transmission of loaded contact frozen soil with creep effect in the temperature field is studied using critical boundary element method.
基于临界边界单元法，研究温度场中具有蠕变效应的冻土接触载荷传递问题。
The corrosion of carbon steels in the oil field soil and its influencing factors were studied with artificial neural network technique.
利用人工神经网络技术对碳钢在油田现场土壤中的腐蚀进行了研究。
The modified Cambridge model is employed in simulating the near field soil and the nonlinear analysis method is used in the pile soil interface and distant field soil.
分析中用修正剑桥模型进行近域土体的模拟，对桩土接触面及远域土体进行非线性分析。
The law of soil infiltration, the current quality of field irrigation and its improvement measures will show results from THD soil infiltration and field irrigation tests in the farmer's field.
本文通过土壤入渗及灌水技术大田试验研究，指出了西营河灌区土壤入渗的规律、田间灌水质量状况及其改进途径。
The consolidation deformation characteristics of unsaturated soil and its analysis methods are key issues in the field of soil mechanics.
非饱和土的固结变形特性及其分析理论一直是土力学的研究热点问题。
An experiment was carried out to study changes in soil moisture in winter wheat field under the conditions of drip irrigation, furrow and ridge planting.
试验在池栽条件下研究了滴灌与垄沟耕作条件下冬小麦田间土壤水分的动态变化。
Water and solutes go fast through the macropores in soil and pollute groundwater. Field and laboratory tests are needed to determine the macropore flow properties.
土壤中普遍存在的大孔隙使水及溶质快速穿过土壤，污染地下水，确定土壤大孔隙流性质需要大量的野外和室内实验。
Water and solutes go fast through the macropores in soil and pollute groundwater. Field and laboratory tests are needed to determine the macropore flow properties.
土壤中普遍存在的大孔隙使水及溶质快速穿过土壤，污染地下水，确定土壤大孔隙流性质需要大量的野外和室内实验。
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