肥料中总氮含量的测定方法

近年来农业发展迅速,对肥料的要求越来越严,尤其是直接影响果蔬生长的主要元素之一——氮素。氮素不足,果蔬生长缓慢,氮素过量,则会对果蔬生长产生危害,因此,准确测定肥料中的氮含量对果蔬施肥有重要的指导意义。现行肥料总氮测定方法中,针对不同氮素形态,有不同的测定方法,而对于相同的氮素形态,测定方法也不统一。本文主要汇总了不同形态氮肥中总氮含量的测定方法,分析了各种方法的优缺点,以期指导果蔬生产精准施肥,促进农业的可持续发展。

Determination of Total Nitrogen Content in Fertilizers

In recent years,with the rapid development of agriculture,the demand for fertilizer is more and more strict,especially nitrogen,which is one of the main elements directly affecting the growth of fruits and vegetables.If the nitrogen is insufficient,the growth of fruits and vegetables is slow,and if the nitrogen is excessive,it will do harm to the growth of fruits and vegetables.Therefore,the accurate determination of nitrogen content in fertilizer has important guiding significance for the fertilization of fruits and vegetables.In the current determination methods of total nitrogen in fertilizer,there are different determination methods for different nitrogen forms,but for the same nitrogen form,the determination methods are not unified.This paper mainly summarized the determination methods of total nitrogen content in different forms of nitrogen fertilizer,analyzed the advantages and disadvantages of various methods,in order to guide the production of fruits and vegetables precision fertilization,maintain the sustainable development of agriculture.