J. Ambuko

Growth, Yield and Quality of Onion (Allium cepa L.) as Influenced by Nitrogen and Time of Topdressing

M. W. Gateri, R. Nyankanga, J. Ambuko & A. W. Muriuki · International Journal of Plant & Soil Science · 2018

Onion (Allium cepa L.) is an important commercial vegetable crop grown by small-holder farmers in Kenya for both local and export markets. The national average production is low and quality is highly compromised due to use of low yielding varieties and poor agronomic practices. F...

Open access Research Article 10.9734/IJPSS/2018/42135

Effect of Cattle Manure and Calcium Ammonium Nitrogen on Growth and Leaf Yield of Local Cowpea Accessions in Coastal Kenya

M. J. Hutchinson, F. K. Muniu, J. Ambuko, M. Mwakangalu, A. W. Mwang’ombe, J. J. Okello & F. Olubayo · International Journal of Plant & Soil Science · 2016

Cowpea is one of the major food crops contributing to food security and poverty alleviation especially among women and resource-poor farmers in marginal areas in Kenya. The effect of different concentrations of cattle manure and inorganic nitrogen (Calcium ammonium nitrate, CAN)...

Open access Research Article 10.9734/IJPSS/2016/27699

Optimization of Seed Potato (Solanum tuberosum L.) Tuber Dormancy and Sprouting Capacity through Integrated Gibberellic Acid and Benzylaminopurine Application

P. D. Muchiri, G. K. Gathungu, R. O. Nyankanga, J. Ambuko & J. A. Landeo · Journal of Agriculture and Ecology Research International · 2015

Lack of sprouted seed potato tubers at planting is a major drawbacks for potato production in Kenya as most potato varieties remain dormant longer than three weeks while the window of planting is two weeks. To develop strategies that can enhance earlier sprouting a study was done...

Open access Research Article 10.9734/JAERI/2015/20345