Effect of an organic amendment on the agromorphological performances, physicochemical properties and nutritional qualities of Solanum aethiopicum L. and Solanum melongena L. in Nzindong, West Cameroon

In Cameroon, several varieties of eggplants used in the preparation of soups and broths, are disappearing from our markets.The aim of this study was to evaluate the effect of poultry manure-based amendments on the agromorphological parameters, physicochemical properties, and nutritional qualities of Solanum aethiopicum L. and Solanum melongena L. The experimental design was a split plot and the cultivation took place in Nzindong.We carried out 4 treatments for each plant (T0: no amendment/Control; T1: 1 kg/1.5 m² of poultry manure; T2: 2 kg/1.5 m² of poultry manure and T3: 2 kg/1.5 m² of poultry manure).The results obtained revealed that treatment T1 (Solanum aethiopicum L.) and T0 (Solanum melongena L.) gave the best production yields, estimated at 24.22 t/ha and 16.13 t/ha respectively.The physicochemical analyses showed that: for 100 g of dry matter of Solanum aethiopicum L., treatment T1 had the highest levels of lipids (0.27 g), proteins (4.37 g), fibers (6.32 g), Na (108.45 mg) and Zn (164.13 mg).For 100 g of dry matter of Solanum melongena L., treatment T0 had the highest levels of P (0.38 mg), Cu (60.42 mg), and Se (0.21 µg).These consumed fruit-vegetables could constitute an important dietary supplement for populations.