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International Journal of Agricultural Research
  Year: 2020 | Volume: 15 | Issue: 1 | Page No.: 41-47
DOI: 10.3923/ijar.2020.41.47
 
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Responses of Potato (Solanum tuberosum L.) Varieties to Green Manure

C.M. Tankou , H.D. Beyegue, E.B. Kouam, J.V.L.M. Essam and A. Ngouenet

Abstract:
Background and Objective: In Cameroon, negative nutrient balances have been reported here for the major farming systems. Smallholder farmers have limited ability to purchase soil fertility inputs especially inorganic fertilizers. This experiment aimed to determine the effectiveness of Tithonia diversifolia (Hemsley) A. Materials and Methods: Tithonia green manure was tested on potato in two experiments (2017 and 2019). Four cultivars (two in each experiment) were evaluated with different rates of tithonia green manure in a randomized complete block design with a split-plot arrangement. Analysis of variance and contrast analysis were conducted on the untransformed data and means were separated using the Newman Keul’s method at the 5% probability level where appropriate. Results: In the first experiment there was a significant linear contrast with respect to yield and other yield-related variables, while in the second experiment where higher rates of tithonia were applied, there was a significant quadratic contrast with respect to yield and other yield-related variables. There was no significant interaction (p>0.05) between the rate of tithonia applied and potato variety. The average fresh tuber yields of ‘Dosa’ and ‘Servante’ in the first experiment were 19.2 and 18.7 t ha1, respectively while the yields of ‘Desirée’ and ‘CIPIRA’ in the second experiment with higher rates of tithonia applied, were 30.83 and 18.83 t ha1, respectively. Conclusion: The yield of potato in the region under conventional nutrient supply systems is estimated at 10-30 t ha1 which implies that tithonia fertilization can satisfactorily improve potato production based on the results obtained from these experiments.
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How to cite this article:

C.M. Tankou, H.D. Beyegue, E.B. Kouam, J.V.L.M. Essam and A. Ngouenet, 2020. Responses of Potato (Solanum tuberosum L.) Varieties to Green Manure. International Journal of Agricultural Research, 15: 41-47.

DOI: 10.3923/ijar.2020.41.47

URL: https://scialert.net/abstract/?doi=ijar.2020.41.47

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