The effects of zeolite,used as the test material,on low andmiddle fertility of meadow cinnamon soil and salinized soils in Hebeiprovince were studied.Through over three year's study of the data frompot cultivation and field plot experiments,the results showed that thezeolite,applied to the poor soils,improved their chemical and physicalproperties,decreasing the salt concentration in the salinized soils withincreasing in fertilizer efficiency,which had endurable effect for threeyears.
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