Potassium Requirement of Mature Oil Palm on Coastal Soils
Oil palm grown in the coastal marine clay soils are very productive with fresh fruit bunches (FFB) yield ranging between 28-40 tonnes per hectare. The high yield is attributable to high yielding planting materials, good agronomic practices and sound fertilizer application programme. Of the three...
| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
1999
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/10428/ http://psasir.upm.edu.my/id/eprint/10428/1/FP_1999_6_A.pdf |
| _version_ | 1848841421327433728 |
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| author | Ahmad Tajudin, Mohamad Hashim |
| author_facet | Ahmad Tajudin, Mohamad Hashim |
| author_sort | Ahmad Tajudin, Mohamad Hashim |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Oil palm grown in the coastal marine clay soils are very productive with fresh
fruit bunches (FFB) yield ranging between 28-40 tonnes per hectare. The high yield
is attributable to high yielding planting materials, good agronomic practices and
sound fertilizer application programme. Of the three factors, fertilizer application is
considered to be the most influencing factor in maintaining high yield. In oil palm
nutrition, the main nutrients which are important for vegetative growth and
production are nitrogen, phosphorus, potassium and magnesium. However, the
responses of oil palm to potassium fertilizer application on coastal marine clay soils
are low and varied between and within the soil series. There is no clear answer to
this phenomenon and thus this study was undertaken to provide explanation on the
potassium requirements of oil palm planted on coastal marine clay soils. In this study a series of trials were conducted. In the experiment studying the
responses of mature oil palm to NPK fertilizer application, the results showed that
application of NPK fertilizers significantly increased their respective nutrient levels
in the pinnae, but the magnesium levels were not affected. On fresh fruit bunch
(FFB) production, phosphorus and nitrogen fertilizer application recorded positive
significant responses. On the other hand, potassium fertilizer application showed no
relationship at all with FFB production.
In the experiment studying the responses of oil palm to potassium fertilizer
application, the results of experiments indicated that potassium fertilizer application
had significantly increased the potassium levels in the rachis and petiole and to a
small degree in the pinnae, but this did not result in a corresponding increase in
vegetative growth and crop production. Trunk analysis also showed high potassium
content with increasing rate of potassium fertilizer application. The high potassium
levels in the vegetative parts as a result of potassium fertilizer application were
excess uptake because such high levels of potassium did not result in improved crop
production. Such excess uptake was considered as luxury consumption. |
| first_indexed | 2025-11-15T07:42:58Z |
| format | Thesis |
| id | upm-10428 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:42:58Z |
| publishDate | 1999 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-104282011-04-11T02:48:53Z http://psasir.upm.edu.my/id/eprint/10428/ Potassium Requirement of Mature Oil Palm on Coastal Soils Ahmad Tajudin, Mohamad Hashim Oil palm grown in the coastal marine clay soils are very productive with fresh fruit bunches (FFB) yield ranging between 28-40 tonnes per hectare. The high yield is attributable to high yielding planting materials, good agronomic practices and sound fertilizer application programme. Of the three factors, fertilizer application is considered to be the most influencing factor in maintaining high yield. In oil palm nutrition, the main nutrients which are important for vegetative growth and production are nitrogen, phosphorus, potassium and magnesium. However, the responses of oil palm to potassium fertilizer application on coastal marine clay soils are low and varied between and within the soil series. There is no clear answer to this phenomenon and thus this study was undertaken to provide explanation on the potassium requirements of oil palm planted on coastal marine clay soils. In this study a series of trials were conducted. In the experiment studying the responses of mature oil palm to NPK fertilizer application, the results showed that application of NPK fertilizers significantly increased their respective nutrient levels in the pinnae, but the magnesium levels were not affected. On fresh fruit bunch (FFB) production, phosphorus and nitrogen fertilizer application recorded positive significant responses. On the other hand, potassium fertilizer application showed no relationship at all with FFB production. In the experiment studying the responses of oil palm to potassium fertilizer application, the results of experiments indicated that potassium fertilizer application had significantly increased the potassium levels in the rachis and petiole and to a small degree in the pinnae, but this did not result in a corresponding increase in vegetative growth and crop production. Trunk analysis also showed high potassium content with increasing rate of potassium fertilizer application. The high potassium levels in the vegetative parts as a result of potassium fertilizer application were excess uptake because such high levels of potassium did not result in improved crop production. Such excess uptake was considered as luxury consumption. 1999 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/10428/1/FP_1999_6_A.pdf Ahmad Tajudin, Mohamad Hashim (1999) Potassium Requirement of Mature Oil Palm on Coastal Soils. PhD thesis, Universiti Putra Malaysia. Soils - Potassium content English |
| spellingShingle | Soils - Potassium content Ahmad Tajudin, Mohamad Hashim Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title | Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title_full | Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title_fullStr | Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title_full_unstemmed | Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title_short | Potassium Requirement of Mature Oil Palm on Coastal Soils |
| title_sort | potassium requirement of mature oil palm on coastal soils |
| topic | Soils - Potassium content |
| url | http://psasir.upm.edu.my/id/eprint/10428/ http://psasir.upm.edu.my/id/eprint/10428/1/FP_1999_6_A.pdf |