Development,problems and countermeasures of fertilizer standards in China
In order to understand the current situation of chinese fertilizer standards and speed up the construction of the fertilizer standard system,this study collected data from four levels of standards related to fertilizers in China,including national,industrial,local and group standards,and compared these published standards with the technical responsible unit,content and implementation time,and analyzed the problems and shortcomings of the existing fertilizer standard system.The key direction of further improving the standard system was put forward.The results showed that China's fertilizer standards covered the complete fertilizer industry chain,which basically met the needs of current domestic fertilizer industry production and use.Fertilizer national standards and industry standards focused on testing methods and product standards,accounting for 54.1%and 24.1%of national standards,and 35.1%and 34.8%of industry standards,respectively.The technical standard of fertilizer application was the main content of local standard and group standard,accounting for 81.2%and 57.1%,respectively.China had basically established a relatively complete standard system.At present,the main problems included that:(1)The content of product standards was cross-repeated;(2)The age of testing technical standards was too long;(3)The naming of application technical standards was not uniform;(4)The safety evaluation standards were relatively short;(5)The evaluation system of standard implementation effect was not comprehensive.In the future,it would be crucial to strengthen the communication between the technical responsible unit and the producers,strengthen the review of fertilizer-related standards,accelerate the project and development of fertilizer standards,strengthen the evaluation of the implementation effect of standards,and strengthen the management of group standards and enterprise standards.