Canadian Journal of Agriculture and Crops

Volume 4, Number 2 (2019) pp 144-152 doi 10.20448/803. | Research Articles


Evaluating the Potential Effect of Foliar Fertilizers on Cowpea Growth and Yield

Isbel F. Chakanyuka 1 

Solomon Mupeti 1 

Charity Pisa 1 

Nyamande Mapope 1 ,

Cosmas Parwada 1 

Tony Tauro 1 

Justin Chipomho 1 

Benhildah Masuka 1 

Wonder Ngezimana 1 

1 Marondera University of Agricultural Sciences and Technology, Marondera, Zimbabwe.


A experiment to evaluate performance of foliar fertilizers on cowpea growth and yield was conducted in the 2015/16 Zimbabwean summer season. This experiment was laid out in a randomized complete block design with 4 replications. Treatments were; a control (no fertilizer), 300 kg/ha compound D only, 300 kg/ha compound D + foliar fertilizers, 150 kg/ha compound D + foliar fertilizers and foliar fertilizers only. Leaf number, branch number, pod number, biomass, pod weight and grain weight were measured. Application of foliar fertilizers had a significant (p < 0.05) effect on growth by increasing the leaf number per plant at 5 weeks after planting. Leaf number was in the order of 112.05 (300 kg/ha compound D + foliar fertilizers)>104.8 (300kg/ha compound D only) >84.55 (150 kg/ha compound D + foliar fertilizers >76.6 (control)> 73.95 (foliar fertilizers only). Foliar fertilizer application also had a significant (p < 0.05) effect on pod number. A combination of compound D + foliar fertilizers had the highest pod number 29.55 followed by compound D (26.72) and the least was from control (16.9). Grain yield of compound D + foliar fertilizers (0.35) was not statistically different from that of compound D only (0.32), but both were significantly (p < 0.05) different from the other treatments. Results showed that the effect of foliar fertilizers is most attributed if used in combination with compound D (basal fertilizer). There is need for further research to investigate if residual soil fertility can affect the yield of cowpea concerning the foliar applications.


Fertilization Folia Growth Legume Mobilization Volatilization.


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