R. N. Onwonga

Legume and Organic Fertilizer Effects on Soil Nutrient Availability, Uptake and Kale Yields in Kabete Sub-county Kenya

C. Chepkoech, R. N. Onwonga, R. G. Wahome & H. Høgh-Jensen · Journal of Experimental Agriculture International · 2018

Declining  soil  fertility  is  the  main  constraint  to  kale  (Brassica  oleracea  var.  acephala)  a common  vegetable,  production  in  parts  of  Kiambu  County  Kenya.  A  field  experiments  to evaluate the effect of legume integration  and application of organic fertiliz...

Open access Research Article 10.9734/JEAI/2018/30364

Effect of Legume Integration and Phosphorus Use on Maize N and P Concentration and Grain Yield in Kabete - Kenya

N. A. Templer, J. J. Lelei & R. N. Onwonga · International Journal of Plant & Soil Science · 2017

Aims: Investigate effect of legume integration and phosphorus application on nitrogen (N) and phosphorous (P) concentration and yield of maize. Place and Duration of Study: The study was carried out in Kabete Field Station of the University of Nairobi during the long (LRS) and sh...

Open access Research Article 10.9734/IJPSS/2017/34972

Finger Millet (Eleusine corocona) Production in Lower Eastern, Kenya: Status, Constraints and Opportunities

S. I. Shibairo, Y. M. Madegwa & R. N. Onwonga · Current Journal of Applied Science and Technology · 2016

Due to its drought resistant nature, high nutritional content and ability to produce with few inputs, finger millet is one of the crops that can combat food insecurity in arid and semi-arid lands like eastern Kenya. Against this backdrop, a survey was carried out in Kalama and Ka...

Open access Research Article 10.9734/BJAST/2016/16075