Abstract Ultrasonic parameters are very useful tools used to study the physic-chemical behavior and molecular interactions of various liquid mixtures. More than 50% problems of irrigated areas are associated with cultivated land and they frequently occur due to salinity. Application of fertilizers into agricultural land could be a remedy for soil salinity by providing essential nutrients to plants. In this research paper, ultrasonic and volumetric properties of phosphate based fertilizers of different molecular compositions at different temperatures have been studied. This is experimental based work; this knowledge can be employed in formulation of fertilizers according to the nature of their application which could enhance fertilizer’s activity either in terms of nutrients development or to control the salinity of soil. Results obtained from calculated ultrasonic and volumetric parameters indicated presence of strong interactions in aqueous fertilizer solutions which depends upon nature of molecules. Among presently studied phosphate fertilizers i.e. triple superphosphate, nitrophosphate and diammonium phosphate, maximum molecular interactions were observed in aqueous triple super phosphate solutions due to the presence of highly charged cationic specie i.e. calcium ions, which can also be used to control the salinity of soil using electrostatic interactions among saline salts and charged cationic species.

中文翻译：

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在不同温度和大气压下，根据体积和声学参数，磷肥分子中阳离子部分对其溶液行为的影响

摘要 超声参数是研究各种液体混合物的理化行为和分子相互作用的非常有用的工具。50%以上的灌区问题与耕地有关，而且经常因盐碱化而发生。在农田中施肥可以通过为植物提供必需的养分来解决土壤盐分问题。在这篇研究论文中，研究了不同分子组成的磷基肥料在不同温度下的超声波和体积特性。这是基于实验的工作；这些知识可用于根据其施用的性质配制肥料，这可以增强肥料在养分发育或控制土壤盐度方面的活性。从计算的超声波和体积参数获得的结果表明，在肥料水溶液中存在强相互作用，这取决于分子的性质。在目前研究的磷肥中，即三重过磷酸钙、硝基磷酸盐和磷酸二铵，由于存在高电荷阳离子物质，即钙离子，在三重过磷酸钙水溶液中观察到最大的分子相互作用，这也可用于控制土壤的盐度，使用盐和带电阳离子物质之间的静电相互作用。