@article{f91965d9a73c4fd1b6ed0a1b406bd233,
title = "Low level phosphorus supply affecting nodulation, N2 fixation and growth of cowpea (Vigna anguiculata L. Walp).",
keywords = "allantoin, amino-N, N-free nutrient solution, nodule size, P deficiency stress, sand culture, xylem exudate",
author = "\{Wan Othman\}, W.M. and T.A. Lie and \{'t Mannetje\}, L. and G.Y. Wassink",
year = "1991",
language = "English",
volume = "135",
pages = "67--74",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer",
}