IJAER

International Journal of Agriculture and Environmental Research™

ISSN 2455-6939

Title:
STUDY OF THE CHEMICAL FERTILITY OF A SANDY CLAYEY SOIL UNDER NITROGEN-FIXING (Legume) CROPS CULTIVATION IN THE SOUTH SOUDANIAN ZONE IN BURKINO FASO

Authors:
GOMGNIMBOU Alain P.K, COULIBALY Kalifa , SANON Wilfried , SANON Abdramane , SOULAMA Adama , OUATTARA Souleymane , NACRO B. Hassan and SEDOGO P. Michel

Abstract:
This study was conducted in the southern Soudanian zone of Burkina Faso to assessment the effects of chemical (NPK and urea) and organo-mineral fertilizer on soil chemical parameters in trial field. An experimental design has been established in a rural area in which plant material (KVx 775-33-2G variety of cowpea) and three types of fertilization, namely T0 (fallow, control), T1 (NPK + urea) and T2 (NPK + urea + Compost) were used. The results show that the chemical parameters of the soils were influenced significantly by treatments at the threshold of 5% for all parameters except the C:N ratio. The treatment T2 at 0-10 cm depth (T2_10) provided the best values relative to T1 in terms of pH_H2O, total carbon, total nitrogen, total phosphorus and available phosphorus that are respectively 5.91, 0.91%, 0.072%, 114.98 mg/kg and 5.11 mg/kg. The study showed that the effects of organo-mineral fertilization on the soil are not immediate and can be better observed in the medium and long term. This experimental design should be extended to include fertilization options that can improve soil fertility and intensify cowpea production.

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