Authors: Rafiu, B.O., Falana, A.R., Kuforiji, E. and Obideyi, R.I |
Abstract: The use of soil amendment in raising good quality tree seedlings at nursery stage cannot be
underestimated. Also, the utilization of agricultural and/or industrial wastes as organic manure is
gaining more popularity in the field of scientific research. This study is designed to investigate
the comparative effect of Brewer’ spent grain (BSG) and Horse dung on the seedlings growth of
Tetrapleura tetraptera Schum and Thonn. The seeds of T. tetraptera was first sown in a basket
filled with sterilized river sand. After sprouting, the seedlings were transplanted into potting
media mixed at varying levels of organic manure and top soil. There are four treatments
replicated ten times making total of forty polythene pot and laid down in a completely
randomized design (CRD). The parameters assessed are; Plant height, Leaf production count and
stem girth. All data collected were subjected to the Analysis of Variance (ANOVA) at 5% level
of probability. The results of this study revealed that organic manure have effect on all the
parameters assessed. The organic manure that best suit the production of good quality seedlings
of T. tetraptera is 25g of horse dung + 2kg of topsoil (T2). The result from the ANOVA revealed
that, there are significant differences in all the parameters assessed at 5% level of probability.
Conclusively, when using BSG as a potting medium, it should be mixed and watered regularly
with good quality top soil at least four weeks before transplanting and combination of two
organic manure should be avoided as it does not support vigorous seedling production. |