Merckx, R., Ogega, J., Okalebo, J., Okello, D., Onyango, D., Othieno, C., Otinga, A., Pypers, P. and Were, B. (2012) Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones. RUFORUM Repository. Available at: https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953 (Accessed: 28 October 2026).
Merckx, R., Ogega, J., Okalebo, J., Okello, D., Onyango, D., Othieno, C., Otinga, A., Pypers, P., & Were, B. (2012). Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones. RUFORUM Repository. https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953
Merckx, R., et al. "Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones." RUFORUM Repository, 2012, https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953.
Merckx, R., J.K. Ogega, J.R. Okalebo, D.K. Okello, D.A. Onyango, C. Othieno, A.N. Otinga, P. Pypers, and B.A. Were. 2012. "Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones." RUFORUM Repository. https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953.
Merckx R, Ogega J, Okalebo J, Okello D, Onyango D, Othieno C, et al. Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones. RUFORUM Repository; 2012. Available from: https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953
R. Merckx, J. Ogega, J. Okalebo, D. Okello, D. Onyango, C. Othieno, A. Otinga, P. Pypers, and B. Were, "Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones," RUFORUM Repository, 2012. [Online]. Available: https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953
@misc{RUF-31894,
title = {Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones},
author = {Merckx, R. and Ogega, J.K. and Okalebo, J.R. and Okello, D.K. and Onyango, D.A. and Othieno, C. and Otinga, A.N. and Pypers, P. and Were, B.A.},
year = {2012},
publisher = {RUFORUM Repository},
url = {https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953},
note = {Document ID: RUF-31894}
}
TY - GEN
TI - Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones
AU - Merckx, R.
AU - Ogega, J.K.
AU - Okalebo, J.R.
AU - Okello, D.K.
AU - Onyango, D.A.
AU - Othieno, C.
AU - Otinga, A.N.
AU - Pypers, P.
AU - Were, B.A.
PY - 2012
UR - https://riims.ruforum.org/repository/documents/60ad79ec-b57c-4b13-9b7c-f46b9e3c780b/?se=107953
PB - RUFORUM Repository
ID - RUF-31894
ER -
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Abstract
96 words
Groundnut is an important grain legume in the traditional
cropping systems of western Kenya and eastern Uganda. This
research focuses on assessing and utilising the biological nitrogen
fixation (BNF) potential of groundnut in alleviating soil N
deficiencies and achieve enhanced yields in acid under the
prevailing acid conditions. Indigenous groundnut rhizobia strains
from western Kenya have been characterised in the laboratory
and greenhouse. Three promising isolates are under evaluation
for symbiotic effectiveness in the field. Preliminary results show
that they can raise groundnut and maize yields by 49.1-59.4%
and 69.7 - 71.9%, respectively, in limed soil.
