@article{c85c38e2c4fa4cdebd98f6826a405cfd,
title = "Influence of ammonium and nitrate nitrogen on nitrogenase activity of pea plants as affected by light intensity and sugar addition",
keywords = "Acetylene reduction, Ammonium, Bacteroids, Carbohydrate supply, Nitrate, Nitrogenase, Pea, Pisum sativum, Rhizobium leguminosarum",
author = "F. Houwaard",
year = "1980",
doi = "10.1007/bf02181853",
language = "English",
volume = "54",
pages = "271--282",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer",
}