nitrifier वाक्य

उदाहरण वाक्य

1. 3 ) a heterotrophic nitrifier , named strain hn , was isolated from the greenhouse soil . the cells of isolates were gram positive , rod or coccus
2. Because there are a great quantity ' s heterotrophic bacteria in the breeding pool , which will have the repulsion action to the insufficient quantity ' s nitrifier and prevent the nitrification , the situation will bring the accumulating of nitrite which is the middle substance of nitrification in water , the long term accumulated nitrite can debase fish and shrimp ' s disease - resistant and decrease the growth and even die