A comparative study on zero tillage with bulldozing as land preparations on oil palm growth, and nutrient status after 5 years of planting

Ubi, W; Omaliko, C. P. E.; Ekpe, Samuel D.; Ubi, M. W.; Igwe, H

doi:10.4314/gjass.v4i2.2264

Cited by 1 publication

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“…Bunting et al, 4 stated that the principle that pruning showed never removed more leaves in a year than are produced by the palm in a year. In another experiment, Ubi et al, 5 favored considerably less pruning and mentioned that although only dead and withered leaves should be pruned, harvesting made it necessary that the leaf subtending a bunch should be cut at the same time as the bunch. 6,7 The authors also quoted Rutgers 1 as stating that severe pruning led to an immediate increase in yield which was then followed by a serious decline from which the palms eventually recovered.…”

Section: Introductionmentioning

confidence: 99%

“…In another experiment, Ubi et al, 5 favored considerably less pruning and mentioned that although only dead and withered leaves should be pruned, harvesting made it necessary that the leaf subtending a bunch should be cut at the same time as the bunch. 6,7 The authors also quoted Rutgers 1 as stating that severe pruning led to an immediate increase in yield which was then followed by a serious decline from which the palms eventually recovered. In West Africa, pruning practices have been based on regular cleaning rounds aimed at removing only the dead and dying leaves 8,9 Bunting et al, 4 presented the chemical analyses of 20 leaves (one year's production).…”

Section: Introductionmentioning

confidence: 99%

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Palm wine and fruit yield responses of oil palm (Elaeis guinensis) trees to pruning frequency and season in the rain forest ecology of southern Nigeria

Michael¹

2018

IJAWB

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Experiments were carried out between 2014 and 2017 at Iwuru oil palm plantation, Biase Cross River State Nigeria, to evaluate the effect of pruning of oil palms on yield. The experiments were laid out in a 2 3 factorial consisting of the following factors: Intensity of pruning, time of pruning and frequency of pruning. The plots were somewhat irregular in size but mostly of 20 palms. The three treatments were applied to each of nine randomized blocks. The results showed that severe pruning of palms significantly (P<0.05; P<0.01) reduced yields of oil palms such that yield values obtained from severe pruning were lower than all other values under similar experimental conditions. The differences between treatment A and B in terms of leaf pruning were not statistically significant, indicating that there was no benefit from the regular removal of dead leaves as compared with the control (no pruning except during harvest). The two best treatments were those which involved the minimum of pruning, although annual clearing was better than no pruning. The treatments affected number and size of branches. These results also showed that for Southern Nigeria Conditions, at least any pruning up to a bunch or inflorescence is likely to reduce the subsequent yields even if the leaf is one that has to be removed at the time of harvesting to gain access to the ripe bunch. These results are discussed in light of effect of pruning on oil palm in Southern Nigeria.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%