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Polyacrylamide-degrading fungus was selected from the soil in the chemical plant producting polyacrylamide, and it was named PAMF4. It is capable of utilizing polyacrylamide as sole nitrogen source. According to the morphological characteristics and 18S rRNA sequence analysis, the strain was preliminarily identified as Geotrichum candidum. As the indices with PAMF4 growth and polyacrylamide degradation...
Using the plastic-plate of rice seedling, we studied that phosphogypsum as acidifier in affected on the growth of rice seedling. It was shown that phosphogypsum could adjust soil pH value of into the pH range of rice seedling growing, which had increased effectively plant height, root length, dry weight, chlorophyll content and root activity of rice seedling. Phosphogypsum treatment mixed sulfuric...
Leaching transfer of herbicides was considered as the main control factor of the transfer conversion of pesticides in the soil-water environment. Using Black soil column, we studied the leaching transfer of Butachlor in Black soil. The experiment results showed that leaching amount of Butachlor and the depth of the highest value of butachlor content were in the soil positive correlation with the initial...
The behavior characteristics of sorption-desorption kinetics of imazethapyr in soil were studied with the batch equilibrium method, when the slight alkaline soil (Meadow saline Soil) and weak acid soil (Black paddy soil) was used as soil samples which had the similar organic matter content. It was shown that the adsorption and desorption of imazethapyr in soils can almost achieve equilibrium within...
Imazethapyr is used widely all over the world for the control of broadleaf weeds in the soybean field. However the serious problem of Imazethapyr has been remainded for long time. Bioremediation is an effective and economic method for the soil that has been polluted by pesticides. Used method of bottle cultivating, one strain of Imazethapyr degradable actinomyces S180 was isolated from the soil where...
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