Aims: Sorghum is a staple food crop and accounts for more than half of cereal production in the Far North region. It is ranked among the seven most important agricultural products in the CEMAC zone. Approximately 12% of this dry season sorghum, known as transplanted sorghum, is used extensively in the population's diet. Study Design: The study conducted from 2017 to 2019 aims to assess the adopted techniques for better exploitation of Muskuwaari in the Far North region of Cameroon in a context where climate change has a strong influence on agricultural yield. Methodology: The evaluation of Muskuwaari cultivation techniques is based on farmer surveys and direct field observations. A total of 390 people were surveyed in six different villages in the two regions. Results: Cultivation lasts from July to April, for a period of 10 months. Several activities were identified: primary preparation of the field from July to August, setting up nurseries from August (This activity is poorly represented in Kalfou (16.92% on both types of soil) and in Kaélé (18.46% on clay soil and 13.85% on hydromorphic soil), preparation of the field from September (The most common techniques used today are spraying and transplanting (Technique 6): 34.92% in Guidiguis, 52.31% in Touloum, 50.77% in Kaélé, 62.50% in Kalfou, 35.38% in Doukoula, 55.38% in Tchatibali on average for the clay type soil and 40,63% in Guidiguis, 47.69% in Touloum, 56.92% in Kaélé, 52.46% in Kalfou, 47.62% in Doukoula, 46.77% in Tchatibali on average for the hydromorphic type soil), transplanting from September, weeding from November and harvesting from January. These activities vary according to the type of soil used and the villages. Conclusion: The analysis of these Muskuwaari cultivation techniques showed a slight shift in relation to the cultivation calendar described in the past by other authors. This shift is caused by the change in climate that shortens and/or extends the rainy season from one year to the next.
In order to preserve the For a good and sustainable management of vegetation in the Lagdo subdivision of the Benue division in North region Cameroon with respect to agricultural practices and the effects of climate change, a study on the impact of agricultural practices was conducted in six plant formations and three riparian villages. This study therefore assessed the impact of agricultural practices on vegetation with a focus on the assessment of plant population structure and quantification of sequestered carbon stock. Floristic surveys in six vegetation formations (forest galleries, shrub savannahs, tree savannahs, 2015/2016 crop fields, fallows of two (02) years and more than two (02) years on 50 m x 50 m plots were conducted. Floristic richness analysis identified 50 species across the surveyed sites, which were divided into 40 genera and 23 families. The most represented families in the sites are Caesalpiniaceae, Euphorbiaceae, Combretaceae, Mimosaceae and Rubiaceae, which have 5, 4, 4, 4 and 3 genera respectively. The Shannon diversity index is highest in forest galleries (3.32), in wooded savannahs (3.04); medium in fallows of more than 2 years (2.33), 2-year fallows (2.21) and shrub savannahs (2.20) and lowest in crop fields. Regarding carbon sequestration, forest galleries have carbon stocks of 57.47 tC/ha, followed by shrub savannahs with stocks of 12.66 tC/ha and fallows of more than 2 years with 3.64 tC/ha. The crop fields (0.12 tC/ha) present the lowest values, however lower than those sequestered by shrub savannahs (1.03 tC/ha) and 2-year fallows (0.88 tC/ha). The results of the study on agricultural practices in the Lagdo subdivision therefore confirm the need for sustainable management of natural resources to combat climate change.
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