Chemical Science International Journal

The proximate, minerals, and phytochemical composition of Ocimum gratissimum plant (OGP) that grew with different manure were investigated. OGseeds were planted in experimental plots in a Randomized Complete Block Design (RCBD) laid out in Oyo State College of Agriculture, Igboora  with three replicates having plot size 3 m x 3 m of four treatments namely; Treatment A-No fertilizer or manure -(control), B- Poultry manure, C- N:P:K 15:15:15 and D-Compost manure respectively. Other parameters studied were planted height, leave areas, number of leaves and plant girth. The pre-soil test carried out indicated that the soil had organic matter (OM) content of 1.56%, total N 0.11% and available P 16.92 mg/g. This low level of nutrients justified the need for fertilizer application for maximum production. It could be concluded that there was significant (p<0.05) differences in other parameters considered from 3 to 9 Weeks After Planting (WAP) on all the agronomic characters. Furthermore, the proximate and minerals of the OGP went in favour of Compost raised OGP with highest values of significance. Followed by Poultry manure plant while N: P: K and No-manure treatments had the least (P>0.05) values respectively. The phytochemicals of the OGP which include Alkaloid, Flavonoid, Saponin and others were also high (P<0.05) in values on Compost and Poultry manure and the least value were observed in N. P. K and Control plants.