Abstract
Okra is a plant rich in nutrients and is very well consumed in Côte d’Ivoire. Despite its many benefits, the production of this vegetable is still weak in our country. The reasons for this include the inadequate selection of varieties, the high cost of inputs and the poverty of the soil for its cultivation. One of the alternatives for sustained production is to solve the problem of soil fertility. In the case of our work, the aim is to improve the yield of okra. To achieve this goal, experiments were undertaken to evaluate the impact of activated charcoal on morphological parameters of a local okra variety. For this purpose, the charcoal used was activated in three different times (activation time equal to 0 days, 15 days and 30 days). The experimental device used is a split-plot with three repetitions, each comprising 12 elementary plots. The various charcoals were buried the same day. Then, the seedling was done with two positions including outside position and inside position. Observations were made on 360 plants. An analysis of the variances was carried out on the morphological parameters. Fruit mass is the variable most influenced by activated charcoal. Thus, the greatest value of the mass was obtained with the charcoal CA0, with outside position.
Highlights
The agricultural sector formed the basis for Côte d’Ivoire economic development as soon as it became independent
Okra is rich in carbohydrate (7% - 8% dry matter) and protein (1.8% dry matter); it contains 0.056% phosphorus, 0.043% magnesium, 0.09% of calcium and its seeds are very rich in protein (20%) and lipid (14%)
The use of activated charcoal associated with the position of plants in this work, is very beneficial for the cultivation of okra in the sandy loam soil
Summary
The agricultural sector formed the basis for Côte d’Ivoire economic development as soon as it became independent. Coal has large properties capable of improving the condition of agricultural soils It contributes to the reduction of soil acidity [3], accelerates the activation of microorganisms [4]. Charcoal influences the biological community of the soil by its composition and abundance [8] It has a high ratio surface/volume and a high affinity for inorganic ions. The incorporation of activated charcoal on the soil modifies its water state and influences the root development of plants as well as the fauna of the soil [13] It acts as an adsorbent complex of nutrients, and so helps the soil to fix nutrients like carbon, nitrogen, phosphorus, potassium and calcium [14]. Its objective is to improve the yield of a local variety of okra, called “Soudè”: Abelmoschus
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