Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.)
We studied the effects of different covers (none, legume and natural) established in different ways (with legumes only: hand-weeded, hand-weeded plus extra fertilizer, and with pre-emergent application of the herbicide Oxyfluorfen at 0.25 kg active ingredient ha−1), on the first 3.5 years' grow...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
1981
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| Online Access: | http://psasir.upm.edu.my/id/eprint/40472/ http://psasir.upm.edu.my/id/eprint/40472/1/Effect%20of%20differently%20managed%20legumes%20on%20the%20early%20development%20of%20oil%20palms%20%28Elaeis%20guineensis%20Jacq.%29.pdf |
| _version_ | 1848849435429175296 |
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| author | Periathamby, Agamuthu Chang, Y. K. Jesinger, Robert Khoo, K. M. Broughton, William J. |
| author_facet | Periathamby, Agamuthu Chang, Y. K. Jesinger, Robert Khoo, K. M. Broughton, William J. |
| author_sort | Periathamby, Agamuthu |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We studied the effects of different covers (none, legume and natural) established in different ways (with legumes only: hand-weeded, hand-weeded plus extra fertilizer, and with pre-emergent application of the herbicide Oxyfluorfen at 0.25 kg active ingredient ha−1), on the first 3.5 years' growth and yield of oil palms (Elaeis guineensis Jacq). Legumes were a mixture of Centrosema pubescens and Pueraria phaseoloides. Natural generation consisted mostly of Nephrolepis biserrata and Paspalum conjugatum. Early rates of growth of the palms (as measured by frond area, girth, height, etc.) were greatest in the bare plots and the first yields of fresh fruit bunches were significantly higher than with any other treatment. On the other hand, relative growth rates and net assimilation rates were higher in legume plots (particularly those established with Oxyfluorfen) throughout most of the experimental period. This means that the rate of growth of palms in legume treated plots steadily overtook the rate of growth of those in bare plots. Presumably, these differences resulted from rapid exploitation of soil nutrients by palms in bare plots, and the “banking” of these same nutrients in legume plots. |
| first_indexed | 2025-11-15T09:50:21Z |
| format | Article |
| id | upm-40472 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:50:21Z |
| publishDate | 1981 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-404722015-09-18T05:04:45Z http://psasir.upm.edu.my/id/eprint/40472/ Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) Periathamby, Agamuthu Chang, Y. K. Jesinger, Robert Khoo, K. M. Broughton, William J. We studied the effects of different covers (none, legume and natural) established in different ways (with legumes only: hand-weeded, hand-weeded plus extra fertilizer, and with pre-emergent application of the herbicide Oxyfluorfen at 0.25 kg active ingredient ha−1), on the first 3.5 years' growth and yield of oil palms (Elaeis guineensis Jacq). Legumes were a mixture of Centrosema pubescens and Pueraria phaseoloides. Natural generation consisted mostly of Nephrolepis biserrata and Paspalum conjugatum. Early rates of growth of the palms (as measured by frond area, girth, height, etc.) were greatest in the bare plots and the first yields of fresh fruit bunches were significantly higher than with any other treatment. On the other hand, relative growth rates and net assimilation rates were higher in legume plots (particularly those established with Oxyfluorfen) throughout most of the experimental period. This means that the rate of growth of palms in legume treated plots steadily overtook the rate of growth of those in bare plots. Presumably, these differences resulted from rapid exploitation of soil nutrients by palms in bare plots, and the “banking” of these same nutrients in legume plots. Elsevier 1981-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/40472/1/Effect%20of%20differently%20managed%20legumes%20on%20the%20early%20development%20of%20oil%20palms%20%28Elaeis%20guineensis%20Jacq.%29.pdf Periathamby, Agamuthu and Chang, Y. K. and Jesinger, Robert and Khoo, K. M. and Broughton, William J. (1981) Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.). Agro-Ecosystems, 6 (4). pp. 315-323. ISSN 0304-3746 http://www.sciencedirect.com/science/article/pii/0304374681900366 10.1016/0304-3746(81)90036-6 |
| spellingShingle | Periathamby, Agamuthu Chang, Y. K. Jesinger, Robert Khoo, K. M. Broughton, William J. Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title | Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title_full | Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title_fullStr | Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title_full_unstemmed | Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title_short | Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.) |
| title_sort | effect of differently managed legumes on the early development of oil palms (elaeis guineensis jacq.) |
| url | http://psasir.upm.edu.my/id/eprint/40472/ http://psasir.upm.edu.my/id/eprint/40472/ http://psasir.upm.edu.my/id/eprint/40472/ http://psasir.upm.edu.my/id/eprint/40472/1/Effect%20of%20differently%20managed%20legumes%20on%20the%20early%20development%20of%20oil%20palms%20%28Elaeis%20guineensis%20Jacq.%29.pdf |