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Nitrate reductase activity and N fractions in timothy and switch grass as influenced by N and S fertilization


Nitrate reductase activity and N fractions in timothy and switch grass as influenced by N and S fertilization



Canadian Journal of Plant Science 57(4): 1151-1157



ISSN/ISBN: 0008-4220

DOI: 10.4141/cjps77-170

The effects of N and S fertilization on nitrate reductase activity (NRA) and N fractions were studied in timothy and switch grass (Panicum virgatum). Soil cores of both spp. were obtained from a marginally S-deficient area at Madison, Wisconsin, and placed in growth chambers maintained near the opt. temp. for each sp. 0, 224 or 448 kg N/ha as Ca(NO3)2 and 0, 11.2 or 22.4 kg S/ha as CaSO4 were applied in all possible combinations.

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Accession: 000441182

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