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Search results for ' ' (0.002 seconds ) Total Hits : 5

1

Studies on microbial oxidation of nitrogen compounds

2

Studies in nitrogen transformation

Language:English
3

Studies on urea-aldehyde condensation products as slow acting nitrogenous fertilizers

4

Studies of fertilizer nitrogen in multiple cropping systems as traced with 15 N

Language:English
5

Transformation of carbon and nitrogen compounds