施用污泥堆肥对作物和土壤的影响.doc

文档介绍：文章编号:1008-181X (2000) 04-0277-04
施用污泥堆肥对作物和土壤的影响
张桥1,吴启堂1,黄焕忠2,廖新弟3,周立祥4
(1:华南农业大学资源环境学院,广东广州 510642;2:香港浸会大学生物系,香港;
3:华南农业大学动物科学系,广东广州 510642;4:南京农业大学资源与环境学院,江苏南京 210095)
摘要:污泥中的有机质、营养成分可为农业生产提供重要的有机肥源,但污泥中的重金属是制约污泥农用的重要因素,为检验污泥堆肥施用后对作物及土壤的影响,文章对污泥与稻草或木屑堆肥的产品进行了盆栽试验研究。结果表明,污泥与稻草或木屑的堆肥作为肥料施用于萝卜(Brassica campestris)和菜心(Brassica parachinensis),产量明显提高,部分堆肥产品增产效果优于化肥,且后效明显。堆肥施用使土壤中有机质、各养分含量增加,微生物活动增强、数量增加,然而作物和土壤中的重金属含量也有不同程度的提高。
关键词:污泥;堆肥;作物;土壤
中图分类号:X53 文献标识码:A
EFFECT OF POST APPLICATION ON CROP AND SOIL
ZHANG Qiao,1 WU Qi-tang1, Jonathan . WONG2, LIAO Xin-di3, ZHOU Li-xiang4
( 1: College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China;
2: Department of Biology, Hong Kong Baptist University, Kowloon Tang, Hong Kong, China;
3: Department of Animal Sciences, South China Agricultural University, Guangzhou 510642, China;
4: College of Natural Resources and Environment, Nanjing Agricultural University, Nanjing 210095, China )
Abstract: The municipal sludge is a anic fertilizer for crops and soils, but the effect of posts on crops and soils in South China is still to verify. post of the sewage sludges from Guangzhou and Foshan with rice straw and wood chips was applied to turnip (Brassica campestris) and Chinese flowering cabbage(Brassica parachinensis). The crop yield, heavy metal contents and soil property change wer