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International Journal of Agriculture and Food Science

Vol. 5, Issue 1, Part A (2023)

Effects of four years of continuous conservation agriculture practice on soil fertility and maize (Zea mays L.) yield in agroecological transition context in western Burkina Faso

Author(s):

Kalifa Coulibaly, Alain PK Gomgnimbou, Idriss Sermé, Joseph FK Sanon and Hassan B Nacro

Abstract:

The objective of this study is to show the potential of conservation agriculture on chemical parameters, soil respiration activity and maize yields after 4 years of continuous CA practices. The experimental design is a factorial block with two treatments and three replications. The conventional system (CS = plowing + maize) is compared to the conservation agriculture system (CA = 2 t/ha of straw + direct seeding of maize/ cowpea). The results show that the CA system significantly increased soil pH (11.32%), carbon (81.13%), nitrogen (85.71%) and potassium (97.55%) in the 0-5 cm soil layer compared to the conventional system. The AC system improves the soil respiration activity. It induced a non-significant increase in grain (10.89%) and straw (16.01%) yields of maize compared to SC. Total forage biomass production (straw with or without stover) showed a significant increase of 39.06% in CA compared to SC. It can be concluded that CA with 2 t/ha of straw as cover can ensure sustainable management of tropical soils and improve productivity of cropping systems. However, the beneficial effect would only be noticeable after a few years of continuous CA practice (4 years for our study).

Pages: 64-71  |  314 Views  85 Downloads

How to cite this article:
Kalifa Coulibaly, Alain PK Gomgnimbou, Idriss Sermé, Joseph FK Sanon and Hassan B Nacro. Effects of four years of continuous conservation agriculture practice on soil fertility and maize (Zea mays L.) yield in agroecological transition context in western Burkina Faso. Int. J. Agric. Food Sci. 2023;5(1):64-71. DOI: 10.33545/2664844X.2023.v5.i1a.125
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