Influence of swine manure on growth, P uptake and activities of acid phosphatase and phytase of Polygonum hydropiper.
Influence of swine manure on growth, P uptake and activities of acid phosphatase and phytase of Polygonum hydropiper.
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DOI：
10.1016/j.chemosphere.2014.01.007
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发表时间：
2014-06
期刊：
影响因子：
8.8
通讯作者：
Daihua Ye;Ting-xuan Li;Guangdeng Chen;Zicheng Zheng;Haiying Yu;Xi-zhou Zhang
中科院分区：
文献类型：
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作者：
Daihua Ye;Ting-xuan Li;Guangdeng Chen;Zicheng Zheng;Haiying Yu;Xi-zhou Zhang
过量施用畜禽粪便会导致土壤中磷的富集。植物修复是一种很有前途的策略，从粪肥污染的土壤中提取多余的磷。采用土培法，研究了不同猪粪浓度（0-200 g/kg土）条件下，矿业生态型和非矿业生态型辣蓼（Polygonum hydropipper）对磷的吸收特性。P.在100 g kg− 1土壤中测定。两种生态类型土壤组织中的磷含量均随猪粪浓度的增加而显著增加。在100 g kg− 1土壤浓度下，地上部和根部的P积累量最大，但ME比NME积累更多的P。与NME相比，ME具有较低的植物有效数和较高的磷提取率。酸性磷酸酶和植酸酶活性均高于对照。与对照相比，施用猪粪的土壤中的胡枝子生长量明显增加，而施用有机肥的土壤中胡枝子生长量明显高于施用非有机肥的土壤。因此，两种生态型的P.结果表明，水辣蓼能从施用猪粪的土壤中积累磷，为植物修复奠定了基础。
Excessive application of animal manure to the farmland results in enrichment of P in the soil. Phytoremediation is a promising strategy for extracting excess P from manure impacted soil. P uptake characteristics of a mining ecotype (ME) and a non-mining ecotype (NME) ofPolygonum hydropiperwere investigated in this study by adopting soil culture containing various concentrations of swine manure (0–200 g swine manure kg−1soil). A peak value in the biomass ofP. hydropiperwas determined in 100 g kg−1soil. Significant increase of P content in tissues of two ecotypes was noticed with an increase in swine manure concentration. Maximum P accumulation in shoots and roots was observed at the concentration of 100 g kg−1soil, however, the ME accumulated more P as compared to the NME. The ME showed a lower plant effective number and a higher P extraction ratio compared to the NME. Both acid phosphatase and phytase activities ofP. hydropiperwere obviously enhanced under swine manure impacted soil compared with control, while those of ME higher than the NMEs. Therefore, the two ecotypes ofP. hydropipercan accumulate P from soil amended with swine manure and establishes the foundation for phytoremediation.