Citation
Ilangovan K., . and Abdul Kadir Saad, . and Ismail Hashim, . Sub-soil manuring in oil palm. pp. 17-23. ISSN 0127-9564
Abstract
Two fertilizer placement methods i.e. conventional surface application (SFM) and sub-soil placement (SSM) with slow release and compound fertilizers were evaluated on young oil palm replants in the field. Fertilizers were broadcasted evenly in the weeded circle in the SFM plots and buried at depth 10 cm from the soil surface in the SSM plots. It was found that a single application by the SSM method was able to sustain plant growth for up to 9-12 months in the field. Vegetative growth of the palms was comparableto the standard manuring practice (SFM). Slow release fertilizers were equally effective but the high cost of fertilizer was a set-back. NPK Blue (at 1.00 kg/palm) NPK Yellow (at 0.80 kg/palm) and FELDA 10 (at 1.75 kg/palm) gave the best results. Higher rates did not enhance the palm growth. Economic analysis at the 6th and 12th month of planting favoured the SSM method using compound and mixture fertilizers with savings in both material and application cost. Since the fertilizers were hoed into the soil meaning that they were not visible externally supervision during manuring is very important. Correct placement and fertilizer rates must be ensured. The SSM method could cause some leaf scorching through root damage during planting or by the high fertilizer concentration in hard soils during the wet season. Proper care must therefore be taken during planting and to apply fertilizers 1-2 months after the wet season.
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Abstract
Two fertilizer placement methods i.e. conventional surface application (SFM) and sub-soil placement (SSM) with slow release and compound fertilizers were evaluated on young oil palm replants in the field. Fertilizers were broadcasted evenly in the weeded circle in the SFM plots and buried at depth 10 cm from the soil surface in the SSM plots. It was found that a single application by the SSM method was able to sustain plant growth for up to 9-12 months in the field. Vegetative growth of the palms was comparableto the standard manuring practice (SFM). Slow release fertilizers were equally effective but the high cost of fertilizer was a set-back. NPK Blue (at 1.00 kg/palm) NPK Yellow (at 0.80 kg/palm) and FELDA 10 (at 1.75 kg/palm) gave the best results. Higher rates did not enhance the palm growth. Economic analysis at the 6th and 12th month of planting favoured the SSM method using compound and mixture fertilizers with savings in both material and application cost. Since the fertilizers were hoed into the soil meaning that they were not visible externally supervision during manuring is very important. Correct placement and fertilizer rates must be ensured. The SSM method could cause some leaf scorching through root damage during planting or by the high fertilizer concentration in hard soils during the wet season. Proper care must therefore be taken during planting and to apply fertilizers 1-2 months after the wet season.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | Summary (En) |
| AGROVOC Term: | PALM OILS |
| AGROVOC Term: | INDUSTRY |
| AGROVOC Term: | FERTILIZER APPLICATION |
| AGROVOC Term: | ORGANIC FERTILIZERS |
| AGROVOC Term: | SLOW RELEASE FERTILIZERS |
| AGROVOC Term: | COMPOUND FERTILIZERS |
| AGROVOC Term: | COST ANALYSIS |
| AGROVOC Term: | MALAYSIA ACEITES DE PALMAS |
| AGROVOC Term: | INDUSTRIA |
| AGROVOC Term: | APLICACION DE ABONOS |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:52 |
| URI: | http://webagris.upm.edu.my/id/eprint/17646 |
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