The ammonium transported in runoff from the composted dairy manure was somewhat consistent for the 10-week study.
In addition, the enzyme was not inhibited by levamisole and ammonium molybdate, excluding alkaline phosphatase and nucleotidase activities, respectively.
Microbial immobilization of ammonium and nitrate in relation to ammonification and nitrification rates in organic and conventional cropping systems.
The differentiation process was stopped by transfer briefly to alkaline alcohol (0.25 ml ammonium hydroxide in 250 ml 70% ethanol).
Differentiation was stopped by transfer briefly to alkaline alcohol (0.25 ml ammonium hydroxide in 250 ml 70% ethanol).
Ammonium was the major source of mineral nitrogen, and glutamine was the most abundant free amino acid.
Nitrification was significantly increased in soils amended with ammonium or with ammonium plus phosphorus, suggesting that nitrification is substrate-limited.
During that time period, the ammonium loss from sulphur-coated urea was significantly greater than that measured from the composted dairy manure.
