The mineral elements from the soil that are usable by the plant must be dissolved in the soil solution before they can be taken into the root.
土壤中对植物有用的矿物质元素必须先溶解在土壤溶液中,然后才能被根吸收。
Soluble P was mainly distributed in soil solution and less in the water layer.
肥施入土壤后,水溶性P主要存在于土壤溶液中,而分布于水层中的P相对较少。
Salinity refers to the total concentration of salts present in the soil solution.
含盐量是指土壤溶液中所存在的盐类的总浓度。
Study was conducted to undersdand the effects of temperature on the nutrient concentrations in soil solution.
本文用实测资料分析了温度对麦田土壤溶液养分浓度的影响。
The electrochemical behavior of X70 pipeline steel in a synthetic near neutral soil solution is investigated.
试验研究了X70管线钢在模拟土壤介质中 ,循环载荷下的裂纹扩展特性和宏观规律 。
With the decreasing of the soil solution ratio, the trend of change was the same after adding red muds into it.
添加赤泥后随着土液比的降低各重金属的游离离子浓度的变化趋势与添加赤泥前一样。
The invention discloses an in-situ multipoint collecting device and a method of a suction-adjustable soil solution.
本发明公开了一种吸力可调式土壤溶液原位多点采集装置及方法。
In simulated soil solution, electrochemical reactions are easiest to take place, so the corrosion rate is the highest.
在模拟溶液中,电化学反应非常容易进行,腐蚀速率很高。
The crack propagation characteristics of X70 pipeline steel in the synthetic soil solution under cyclic loading are investigated.
试验研究了X70管线钢在模拟土壤介质中,循环载荷下的裂纹扩展特性和宏观规律。
Effects of acidity on copper speciation in soil solution and relations of copper forms with ryegrass growth and copper uptake were studied.
研究了酸度对土壤溶液中铜形态的影响以及不同形态铜与黑麦草吸收及其生长的关系。
Soil conductivity represents the conductive capability of soil solution in digital form, reflecting the state of water and salt in the soil.
而土壤电导率是以数字形式表示土壤溶液的导电能力,反映了土壤的水盐状况。
Agricultural non-point pollution is formed by 4 processes of rainfall runoff, soil erosion, surface solution stripping and soil solution seepage.
农业非点源污染主要由降雨径流、土壤侵蚀、地表溶质溶出和土壤溶质渗漏4个过程形成。
The change of soluble and ionic heavy metal concentration in soil solution showed that, the activity and plant availability of heavy metals was higher than that of the check.
有机络合剂使得土壤溶液中可溶性与离子态重金属的浓度改变,反映了其活性与可利用性较对照不同。
A small volume of fluoride solution was added into soil solution, then the fluoride electrode procedure Was used to characterize inorganic monomeric aluminum species in the solution.
向土壤溶液中加入一已知量的氟标准溶液,再用氟离子电极测定和区分溶液中无机单核铝的形态。
The procedure using aluminon as the color reagent was applied to the determination of the fraction of aluminum in soil solution and the results agreed well with Driscoll's PCV method.
阳离子树脂交换分离铝试剂光度法更适合于测定含铁量比较高的土壤溶液中的铝形态。
The operation of the invention is agility, precise dynamic monitoring can be performed for the salinity in the saturated soil solution, and the invention has wider application prospect.
本发明操作灵活,对饱和土壤溶液中盐分可以进行较为 精确的动态监测,本发明有着较为广阔的应用前景。
The crack propagation characteristics of X70 pipeline steel in the synthetic soil solution under cyclic loading are investigated. The macroscopical rules of the crack propagation are analyzed as well.
试验研究了X70管线钢在模拟土壤介质中,循环载荷下的裂纹扩展特性和宏观规律。
Aeroponics, a technique in which plants are suspended and the roots misted with a nutrient solution, is another method for growing plants without soil.
空气培植法是一种将植物悬挂起来、并将根部浸泡在营养液中的技术,是另一种不需要土壤就能种植植物的方法。
Soil erosion will not be a problem because the food will be grown hydroponically-in other words, in a solution of minerals dissolved in water.
土壤退化也不再是一个问题,可以使用水栽法栽种粮食作物——换句话说,就是使用一种含有矿物质的溶解液。
Soil hydraulic conductivity is closely related to the movement of water and salts in soil profiles and is highly affected by solution salt concentration and its composition.
水力传导度的变化直接影响土壤剖面的水盐运动,并和土壤溶液的盐分浓度及其组成有很大关系。
The article tries to analyze the deficiency in the soil confiscation systems and to put forward the corresponding solution measures.
本文试图从这些方面分析土地征用制度的不足并提出相应的解决措施。
The temperature limits of violent change of salt heave is not fixed, it is related with the concentration of soil pore solution.
盐胀发生剧裂变化的温度区间并不是固定的,它与孔隙溶液浓度有关。
This paper makes a solution of soil sample information collection system based on mobile GIS after introducing the mobile GIS.
在对移动GIS简要介绍的基础上,给出了系统解决方案。
Based on the elastic semi-plane stress solution of the semicircular excavation and rectangle excavation, deducing the soil displacement equation around the foundation pit.
以半圆形和矩形基坑弹性半平面应力解为基础,推导了基坑周围土体的竖向位移和水平向位移的计算公式。
Through changing the residence time of solution in soil and physicochemical properties of rhizosphere, reed can disadvantageously affect the purifying efficiency of wetland soil to phenol.
芦苇可以通过改变根际和非根际土壤性质以及溶液在土壤中的滞留时间,从而影响湿地土壤对苯酚的净化能力。
The simulated test mainly simulates the basic situation of the farmland, determines the content of nitrogen in soil drench solution, and adopts semi-micro Macro Kjeldahl method.
模拟试验主要模拟农田的基本情况,测定土壤淋溶液中氮的含量,采用半微量开氏法。
Water sorption measurement also revealed that the PPC membranes immersed in buffer solution were more hydrophilic than those in soil burial tests.
吸水实验也同样显示在缓冲溶液中的PPC膜比土壤埋藏测试中吸水性更强。
Solution of these problems will raise the efficiency of soil nutrition analysis and help modernize the technology for soil nutrition analysis.
这些问题的解决将有利于提高土壤养分分析效率,促进毛细管电泳法在土壤养分分析方面的应用。
Solution of these problems will raise the efficiency of soil nutrition analysis and help modernize the technology for soil nutrition analysis.
这些问题的解决将有利于提高土壤养分分析效率,促进毛细管电泳法在土壤养分分析方面的应用。
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