当前肥料市场不同短链聚磷酸盐肥料关键性状之比较  

Comparison of key properties of short-chain polyphosphate fertilizers in market

作　　者：亢龙飞 徐琳峰 王诗荣 江诚涛 褚贵新 KANG Longfei;XU Linfeng;WANG Shirong;JIANG Chengtao;CHU Guixin(College of Life and Environmental Sciences,Shaoxing University,Shaoxing 312000,Zhejiang,China;Key Laboratory of Oasis Eco-Agriculture of Xinjiang Construction Corps,Agricultural College,Shihezi University,Shihezi 832000,Xinjiang,China)

机构地区：[1]绍兴文理学院生命与环境科学学院,浙江绍兴312000 [2]石河子大学农学院,新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子832000

出　　处：《浙江农业学报》2024年第5期1134-1143,共10页Acta Agriculturae Zhejiangensis

基　　金：兵团师域发展创新支持计划项目(2017BA041)。

摘　　要：目前,市场所售的聚磷酸盐肥料质量参差不齐。该研究从全国肥料市场收集10种具有代表性的聚磷酸盐肥料,测定其总氮、总磷(以P2O5计)含量,及聚合度、聚合率和溶解度等指标,采用层次聚类方法和Mantel检验进行比较。结果显示,样品肥料的平均聚合度为4.00,测定值与标注值的平均偏差为6.38%;平均聚合率为83.8%,测定值与标注值的平均偏差为2.59%;总氮含量在8.6%~28.7%,测定值与标注值的平均偏差为2.59%;总磷含量在18.0%~64.2%。Mantel检验结果显示,总氮含量、总磷含量、酸碱度和盐分指数与肥料的聚合率有显著(P<0.05)关联,总磷含量、溶解度、盐分指数、缩二脲含量与聚合度有显著关联。结果表明,不同聚磷酸盐肥料的性质差异显著,且部分肥料指标的测定值与标注值之间具有明显差异。不同肥料生产单位亟须统一指标测定体系,以便提供精准、全面的商品信息。Currently,the quality of short-chain polyphosphate fertilizers varied greatly.In the present study,10 typical short-chain polyphosphate fertilizer samples were collected from the fertilizer market in China.Main features of these samples,including the contents of total N and total P(based on P 2O 5),polymerization degree,polymerization rate,solubility,etc,were determined,and the cluster analysis and Mantel test method were employed to compare the differences of these samples.It was shown that the average degree of polymerization was 4.00,and the average deviation between the measured values and the labeled values was 6.38%.The average polymerization rate was 83.8%,and the average deviation between the measured values and the labeled values was 2.59%.The total N content of these samples ranged from 8.6%to 28.7%,and the average deviation between the measured values and the labeled values was 2.59%.The total P content of these samples was 18.0%-64.2%.Mantel test results demonstrated that the total N content,the total P content,the pH value and salinity index were significantly(P<0.05)correlated with polymerization rate,while the total P content,solubility,salt index and the content of biuret were significantly correlated with the degree of polymerization.In conclusion,the quality of short-chain polyphosphate fertilizers in market varied greatly,and the labeled values differed from the determined values of main features in short-chain polyphosphate fertilizers.Thus,it was urgent and necessary to establish a unified measurement system to provide more accurate and comprehensive information for consumers.

关 键 词：聚磷酸盐肥料 溶解度 聚合度 聚合率 磷肥 

分 类 号：S143[农业科学—肥料学]