According to the method for determination of available forms of heavy metals in soil extracted with DTPA,the amounts of available Pb and Cd in a soil was determined with atomic absorption spectrometer.

M、the avail Pb、the soil enzyme, Studyed the Nutrient、the Total Pb and the Production of the cabbage in the fertilization polluted soil content of soil.

The available Cd in the soil was extracted by using four kinds of extracting solvent at different temperature,time and ratio of soil to solvent.

It is essential to establish a suitable extraction method for available Cd for acid soils because the available, instead of total amounts of Cd are more and more frequently used as criteria for assessing soil environmental quality.

Effects of lime application rate on available copper and zinc content in single and complex polluted red and paddy soils;

Effects of three different modifiers on the content of available Hg,As in acid soil of south of china′s vegetable field;

Study an the Extracting Condition for Available Cd and Content in Cultivated Soil of Guiyang City;

One of those basic tools, the analysis of available form of heavy metals, was widely studied.

In order to determine the influence of the Tian An Te ecology adjustment agent on Cr availability of the soil,The Tian An Te ecology adjustment agent was applied to the soil,including the tea plantation soil、the orchard soil,the vegetable garden soil,Comparative analysis about the effect was carried on.

The result showed that the availability of Pb, Cd in the coal ash was low, while their forms were in strong bound with 48.

By adding heavy metal to the soil of garlic planting and using DTPA as the availability impregnant to extract the soil,and by analyzing the relativity of lead,cadmium accumulated in garlic and availability of lead,cadmium,and based on the GB 2762-2005 Maximum Levels of Contaminants in Food,the critical point of availability lead and cadmium of soil in this experiment condition was established.