There is immobilization of inorganic P （phosphorus） fertilizer becoming unavailable to plants and declining yield over cropping seasons is occurring in rice agro-ecology of humid forest. The performances of indigeno...There is immobilization of inorganic P （phosphorus） fertilizer becoming unavailable to plants and declining yield over cropping seasons is occurring in rice agro-ecology of humid forest. The performances of indigenous PR （rock phosphates） from Ma （Mali）, Burkina Bu （Faso）, Ni （Niger）, To （Togo） and Senegal including that of Pa （Thies） and Ta （Taiba） were tested applying 200 kg.P2O5.ha-1 and 400 kg.P2O5.ha-1 once for three cropping seasons while TSP （triple super phosphate） was applied every season at 60 kg.P2O5.ha-1 and 120 kg-P2O5.ha-1. No P-fertilizer treatment was the control plot and WAB 56-104 was sown as rice variety. No significant difference was observed between the overall mean values of plant height, tiller and panicle numbers according to P-sources likewise for the grain yield when comparing that of 60 kg.P2O5.ha-1 （TSP） vs. treatments of PR while, the treatments Pa, Ta and To significantly induced greater grain yield than 120 kg.P2O5.ha-1 as TSP. Moreover, declining yield in the third cropping year was greater （75%） with TSP than for To, which was not significantly impacted by the number of cropping seasons. Applying 200 kg.P2O5.ha-1 of To was suggested as strategy for sustaining rice production on Ferralsol of west Africa.展开更多
The balkanisation of the African continent by the European powers in the nineteenth century caused the territorial division of people with the same ancestry into two or more states under different European governments...The balkanisation of the African continent by the European powers in the nineteenth century caused the territorial division of people with the same ancestry into two or more states under different European governments. During the partition, the European powers did not take into consideration the cultural and historical boundaries of the people of Africa. In West Africa for example, the partition made some Nzema people to be found in La Cote d＇Ivoire and in Ghana. Some Dagarti are also found in Burkina Faso and while others remained in Ghana. Ewes today can be found in the three countries of Ghana, Togo and Benin. The same applies to the Bono in Gyaman. Some of the Gyaman people can be found in the Ivory Coast with others in Ghana. This article discusses Gyaman under the British and French colonial rule. It focuses on the responses of Gyaman authorities to colonialism and details out British and French colonial policies and their impact on the Gyaman people.展开更多
文摘There is immobilization of inorganic P （phosphorus） fertilizer becoming unavailable to plants and declining yield over cropping seasons is occurring in rice agro-ecology of humid forest. The performances of indigenous PR （rock phosphates） from Ma （Mali）, Burkina Bu （Faso）, Ni （Niger）, To （Togo） and Senegal including that of Pa （Thies） and Ta （Taiba） were tested applying 200 kg.P2O5.ha-1 and 400 kg.P2O5.ha-1 once for three cropping seasons while TSP （triple super phosphate） was applied every season at 60 kg.P2O5.ha-1 and 120 kg-P2O5.ha-1. No P-fertilizer treatment was the control plot and WAB 56-104 was sown as rice variety. No significant difference was observed between the overall mean values of plant height, tiller and panicle numbers according to P-sources likewise for the grain yield when comparing that of 60 kg.P2O5.ha-1 （TSP） vs. treatments of PR while, the treatments Pa, Ta and To significantly induced greater grain yield than 120 kg.P2O5.ha-1 as TSP. Moreover, declining yield in the third cropping year was greater （75%） with TSP than for To, which was not significantly impacted by the number of cropping seasons. Applying 200 kg.P2O5.ha-1 of To was suggested as strategy for sustaining rice production on Ferralsol of west Africa.
文摘The balkanisation of the African continent by the European powers in the nineteenth century caused the territorial division of people with the same ancestry into two or more states under different European governments. During the partition, the European powers did not take into consideration the cultural and historical boundaries of the people of Africa. In West Africa for example, the partition made some Nzema people to be found in La Cote d＇Ivoire and in Ghana. Some Dagarti are also found in Burkina Faso and while others remained in Ghana. Ewes today can be found in the three countries of Ghana, Togo and Benin. The same applies to the Bono in Gyaman. Some of the Gyaman people can be found in the Ivory Coast with others in Ghana. This article discusses Gyaman under the British and French colonial rule. It focuses on the responses of Gyaman authorities to colonialism and details out British and French colonial policies and their impact on the Gyaman people.
