Terminal report on growth and survival of Gliricida sepium and Acacia auriculiformis as affected by root pruning and fertilizer application
1996
Lucero, G.V. | Almoite, J.D. | Ufano, J.V.
This study was conducted to determine the best root pruning treatment on the growth of nursery-grown seedlings of Gliricidia sepium and the effect of applying organic and inorganic fertilizer on the growth and survival of outplanted Gliricidia sepium and Acacia auriculiformis seedlings in the field. The first phase of the study was the nursery phase and the second was the outplanting of seedlings in the field phase. The experimental lay-out for the two phases of the study was split-plot in Randomized Complete Block Design (RCBD). The treatments in the nursery study include inoculation as the main plot and root pruning treatment as the sub-plot. For the planting phase, planting stocks aserved as factor A while fertilization served as factor B. Results of the study showed that inoculating Gliricidia sepium seedlings with MYCOVAM I is significantly produced more root nodules that triggered the production of a more balanced shoot-root ratio compared to uninoculated seedlings. The best root pruning technique was the combination of box pruning and undercutting methods that increased the production of root nodules and obtained the heaviest weight in terms of shoot-root ratio of the seedlings. For the outplanted Gliricidia sepium and Acacia auriculiformis seedlings, the application of Biotab organic fertilizer to seedlings that were root-pruned in the nursery using the combination of box pruning and undercutting methods enhanced the growth and survival of seedlings. For better growth and survival of Gliricidia sepium and Acacia auriculiformis seedlings, it is recommended to apply MYCOVAM I inoculant, pruning the roots using box pruning combined with undercutting techniques and the application of Biotab organic fertilizer to outplanted seedlings.
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