RESEARCH ARTICLE


The Status and Countermeasure of Nitrate Pollution Under Double Cropping Systems in China



Xiujuan Ren*, Sumei Yao, Runqing Wang, Dafu Wu, Shilin Chen
Henan Institute of Science and Technology, Xinxiang City, 453003, China


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 1724
Abstract HTML Views: 1876
PDF Downloads: 803
Total Views/Downloads: 4403
Unique Statistics:

Full-Text HTML Views: 820
Abstract HTML Views: 1085
PDF Downloads: 500
Total Views/Downloads: 2405



Creative Commons License
© 2015 Ren et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Henan Henan Institute of Science and Technology, Xinxiang, Henan Province, China; Tel: +8613782591241; Fax: +0863733040147; E-mail: singrule@163.com


Abstract

The multiple cropping is the main agricultural production pattern, including double cropping of rice in south China and double cropping of wheat and corn in north China. Household investigation, typical farmland survey and county statistics inspection were performed to analyze the status and countermeasure of nitrate pollution in China. The result showed that the nitrate rate of underground water was slowly increased, but it was not above the standard of WHO. Under the multiple cropping of winter wheat-summer corn, the nitrate level of irrigation well water had raised year after year since 1991. Some countermeasures should be taken to avoid the nitrate content of underground water, such as increasing the fertilizer use efficiency by taking agronomic measures, according to the local conditions, a reasonable allocation and application of fertilizer and others.

Keywords: Fertilizer, multiple cropping, nitrate pollution.