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Cd,Pb,Cu,Zn,and As are typical pollutantsoriginated from Pb-Zn mine,smelting wastewater discharge/irrigation and gas emission,and they were distributed widely in China.Westudied the compound pollution of Cd,Pb,Cu,Zn,and As on rice. Pot culture and field plots test were bothused in the experiment.The treatments were:1)low dose:Cd 0.5,Pb 100,Cu 33,Zn 66,and As 10mg·kg~(-1);2)high dose:Cd 1.5,Pb 300,Cu 100,Zn 200,and As 30mg·kg~(-1),and 3)CK:no heavy metal was applied.Soil tested was meadow burozen(pH6.3-6.7)and the dosage of heavy metal added to the soilwas close to the soil environmental standard.Results were as follows:
Cd, Pb, Cu, Zn, and As are typical pollutantsoriginated from Pb-Zn mine, smelting wastewater discharge / irrigation and gas emission, and they were distributed widely in China. Westingly formulated compound of Cd, Pb, Cu, Zn, and As on rice. Pot culture and field plots test were both used in the experiment. These treatments were: 1) low dose: Cd 0.5, Pb 100, Cu 33, Zn 66, and As 10 mg · kg -1; 2) high dose: Cd 1.5, Pb 300, Cu 100, Zn 200, and As 30 mg · kg -1, and 3) CK: no heavy metal was applied.Soil tested was meadow burozen (pH 6.3-6.7) and the dosage of heavy metal added to the soil was close to the soil environmental standard. Results were as follows: