一、什么是氮肥增效剂?为什么能使氮肥增效?首先谈谈铵态氮肥施入土壤后,发生了那些生物转化过程。土壤中有一种叫亚硝酸细菌的微生物,能使氨氧化为亚硝酸,这个过程是硝化作用的第一阶段;另一种叫硝酸细菌的微生物,象接力赛一样,立即进一步将亚硝酸氧化为硝酸,这个过程是硝化作用的第二阶段。亚硝酸是一种不稳定的中间产物,但有时也能积 First, what is the nitrogen synergist? Why can the efficiency of nitrogen fertilizer? First of all, to talk about ammonium nitrogen fertilizer applied to the soil, the biological conversion process took place. In the soil there is a kind of bacteria called nitrite bacteria, ammonia can be nitrite, this process is the first stage of nitrification; another called nitrobacteria bacteria, like the relay race, immediately further oxidation of nitrous acid Nitric acid, this process is the second stage of nitrification. Nitrous acid is an unstable intermediate, but sometimes it can accumulate