A gradient can be constituted-of-or-filled-with ammonia.Logical formLearned from2 sentences. Some strains of mice may be subjected to levels of ammonia.Logical formLearned from2 sentences. An (ammonia volatilization) can be at (farm level).Logical formLearned from2 sentences. An application of slurry may diminish an (ammonia volatilization).Logical formLearned from2 sentences. Samplers may measure an (ammonia concentration).Logical formLearned from2 sentences. Techniques may be used in determinning a loss of ammonia.Logical formLearned from2 sentences. Expression of a (bar gene) may confer resistance to herbicide by suppressing an increase of ammonia.Logical formLearned from2 sentences. Ammonia can be to nitrate.Logical formLearned from2 sentences. (Ammonia losses) may be measured with a (wind tunnel system).Logical formLearned from2 sentences. (Ammonia emissions) can be from houses.Logical formLearned from2 sentences. (Ammonia emissions) may aggravate environmental problems.Logical formLearned from2 sentences. An amount of ammonia may treat (sodium bisulfate).Logical formLearned from2 sentences. (Ammonia volatilization) can be from litter.Logical formLearned from2 sentences. An increase can be due to an oxidation of ammonia.Logical formLearned from2 sentences. A gene may carry a subunit of an (ammonia monooxygenase gene).Logical formLearned from2 sentences.