论文部分内容阅读
本文研究了西安浐沪河区工厂附近耕地土壤和几种蔬菜中硼、锌、铜、锰、铁五种微量营养元素的组成.结果表明,和对照区相比,工厂区耕地土壤明显富集硼、锌、铜、锰、铁元素,土壤锰、铁有效量达适量水平,植物体也显著累积各种元素.土壤和植物这几种微量元素的营养状况,因受该区电厂烟尘煤灰和化工厂废渣和污水影响而得以改善.由于土壤有效硼、锌、铜含量水平高,所以该区农业生产中应慎用或不用硼、锌、铜微肥.同时采取适当农业措施提高土壤有效锰和铁的含量.
In this paper, the composition of five micronutrients such as boron, zinc, copper, manganese and iron in arable land and several vegetables near the factory in Xihu and Hexi district of Xi’an was studied.The results showed that compared with the control area, the arable land in the factory area was obviously enriched The effective amount of boron, zinc, copper, manganese, iron, manganese and iron in the soil reaches the appropriate level, and the plant also significantly accumulates various elements.The nutritional status of these trace elements in soils and plants is affected by the dust, And chemical plant residues and sewage affected by improved and due to the high level of soil available boron, zinc and copper, so the area of agricultural production should be used with caution or not boron, zinc and copper fertilizer.At the same time take appropriate agricultural measures to improve the soil effective Manganese and iron content.