Comparative Effects of Organic Cocoa Shell-Based and Inorganic NPK Fertilization on the Growth and Yield of Four Cassava Varieties

Konan Kouakou Marius, K. N’guessan, Kouassi Kouadio Ignace, K. Kevin, K. Kouassi, Z. Arsène, Dogbo Dénézon Odette
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引用次数: 4

Abstract

Looking of finding an alternative to the use of chemical fertilizers to increase yields of cassava (Manihot esculenta), trials were carried out in the Lamto zone in central Cote 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: Yace, Alleda agba, Six mois and Bonoua, 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 Six mois variety gave the longest stems (131, 67 cm) with the cocoa shell compost. The Bonoua 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 (136.89 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 Bonoua 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.
有机椰子壳和无机NPK对四个木薯品种生长和产量的比较研究
为了寻找一种替代化肥的方法来提高木薯(Manihot esculenta)的产量,在科特迪瓦中部的Lamto地区进行了试验。以此为基础,试验了可可壳堆肥、可可灰和氮磷钾对木薯农艺参数的影响。该试验进行了两年,在使用其中一种肥料处理的基本地块上种植了四个品种的木薯:Yace、Alleda agba、Six mois和Bonoua。试验设计为完全随机区组,设3个重复。结果表明,6 mois品种在可可壳堆肥中茎长131,67 cm。另一方面,Bonoua品种的茎基部直径最大(21.56毫米),叶片数量较多(77.30),翼展大(136.89厘米),可可壳堆肥。使用可可壳堆肥后,该品种植株叶片较宽(19.30 cm),较长(17.96 cm)。此外,用壳堆肥处理的Bonoua品种块根数量多(5.11根),单株平均重高(5.83公斤/株),产量高(58.29吨/公顷)。这种可可壳堆肥也可以更好地保护耕地土壤的质量。
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