Enhancing the Productivity of Moringa Oleifera Lam. For Sustainable Development in Agroforestry (Published)
The study evaluated the effectiveness of NPK (15:15:15), poultry manure, cow dung and green manure of Tithonia diversifolia and Chromolaena odorata leaves on the growth of Moringa oleifera. The experiment was laid out in a Completely Randomized Design (CRD) with 11 treatments replicated 5 times. Data were collected for the growth parameters (height, number of leaves and stem diameter) of the M. oleifera seedlings. It was observed that Moringa seedlings grown on soil treated with 20g of T. diversifolia had significantly (P<0.05) higher plant growth parameters than those on soil with the other treatments including the control. Those treated with NPK had similar higher growth parameters comparable to those plants treated with 10g of T. diversifolia and both 10 and 20g of C. odorata. There were also significant differences in the quantities of the manure and NPK applied on the M. oleifera seedlings. This study shows the effectiveness of T. diversifolia and C. odorata as organic manure for improving and enhancing the growth of M. oleifera. Utilization of such weed species component as green manure, compost material or in improved fallow system will help the poor resource farmer to create more sustainable and productive crop yield.
The study analyzed the determinants of net returns to agroforestry in the humid rainforest belt of Nigeria. The multi-stage random sampling technique was used in selecting the sample. The sample size comprised 120 agroforestry practitioners who were selected from the list provided by the staff of the Imo state Agricultural Development Programme (ADP). The results of the ordinary least squares multiple regression analysis showed that farm size, years of farming experience, tree crop density, educational attainment, extension contact, type of soil fertility replacement materials used, and farmers age are the major determinants of net returns to agroforestry practice in the state. It was suggested that co-operative farming and communal system of land use could significantly enhance participation in agroforestry in Imo State, Nigeria.