Looking of finding an alternative to the use of chemical fertilizers to increase yields of cassava (</span><i><span style="font-family:Verdana;font-size:12px;">Manihot esculenta</span>...Looking of finding an alternative to the use of chemical fertilizers to increase yields of cassava (</span><i><span style="font-family:Verdana;font-size:12px;">Manihot esculenta</span></i><span style="font-family:Verdana;font-size:12px;">), trials were carried out in the Lamto zone in central Côte d’Ivoire. Thus, the effects of compost and ash from cocoa shell and NPK were tested on the agronomic parameters of cassava. The trial was conducted for two years with four varieties of cassava: </span><i><span style="font-family:Verdana;font-size:12px;">Yacé</span></i><span style="font-family:Verdana;font-size:12px;">, </span><i><span style="font-family:Verdana;font-size:12px;">Alleda agba</span></i><span style="font-family:Verdana;font-size:12px;">, </span><i><span style="font-family:Verdana;font-size:12px;">Six mois</span></i><span style="font-family:Verdana;font-size:12px;"> and </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;">, grown on elementary plots treated with one of these fertilizers. The experimental design was complete randomized blocks with three replicates. Analysis of the results showed that the </span><i><span style="font-family:Verdana;font-size:12px;">Six</span></i> <i><span style="font-family:Verdana;font-size:12px;">mois</span></i><span style="font-family:Verdana;font-size:12px;"> variety gave the longest stems (131,</span></span><span style="font-size:11pt;font-family:""> </span><span style="font-size:11pt;font-family:""><span style="font-family:Verdana;font-size:12px;">67 cm) with the cocoa shell compost. The </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;"> variety, on the other hand, gave the largest diameter of the stem base (21.56 mm), a higher number of leaves (77.30) and a large wingspan (136</span></span><span style="font-family:Verdana;">.</span><span style="font-size:11pt;font-family:""><span style="font-family:Verdana;font-size:12px;">89 cm) with cocoa shell compost. The leaves developed by the plants of this variety were wider (19.30 cm) and longer (17.96 cm) with cocoa shell compost. Also, this </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;"> variety treated with shell compost yielded a high number of tuberized roots (5.11), high average weight per plant (5.83 kg/plant) and higher yield (58.29 t/ha). This compost of cocoa shell has also allowed a better conservation of the cultivated soils quality.展开更多
文摘Looking of finding an alternative to the use of chemical fertilizers to increase yields of cassava (</span><i><span style="font-family:Verdana;font-size:12px;">Manihot esculenta</span></i><span style="font-family:Verdana;font-size:12px;">), trials were carried out in the Lamto zone in central Côte d’Ivoire. Thus, the effects of compost and ash from cocoa shell and NPK were tested on the agronomic parameters of cassava. The trial was conducted for two years with four varieties of cassava: </span><i><span style="font-family:Verdana;font-size:12px;">Yacé</span></i><span style="font-family:Verdana;font-size:12px;">, </span><i><span style="font-family:Verdana;font-size:12px;">Alleda agba</span></i><span style="font-family:Verdana;font-size:12px;">, </span><i><span style="font-family:Verdana;font-size:12px;">Six mois</span></i><span style="font-family:Verdana;font-size:12px;"> and </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;">, grown on elementary plots treated with one of these fertilizers. The experimental design was complete randomized blocks with three replicates. Analysis of the results showed that the </span><i><span style="font-family:Verdana;font-size:12px;">Six</span></i> <i><span style="font-family:Verdana;font-size:12px;">mois</span></i><span style="font-family:Verdana;font-size:12px;"> variety gave the longest stems (131,</span></span><span style="font-size:11pt;font-family:""> </span><span style="font-size:11pt;font-family:""><span style="font-family:Verdana;font-size:12px;">67 cm) with the cocoa shell compost. The </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;"> variety, on the other hand, gave the largest diameter of the stem base (21.56 mm), a higher number of leaves (77.30) and a large wingspan (136</span></span><span style="font-family:Verdana;">.</span><span style="font-size:11pt;font-family:""><span style="font-family:Verdana;font-size:12px;">89 cm) with cocoa shell compost. The leaves developed by the plants of this variety were wider (19.30 cm) and longer (17.96 cm) with cocoa shell compost. Also, this </span><i><span style="font-family:Verdana;font-size:12px;">Bonoua</span></i><span style="font-family:Verdana;font-size:12px;"> variety treated with shell compost yielded a high number of tuberized roots (5.11), high average weight per plant (5.83 kg/plant) and higher yield (58.29 t/ha). This compost of cocoa shell has also allowed a better conservation of the cultivated soils quality.
