Effects of Nitrogen, Phosphorus, Potassium and Magnesium on Growth of the Oil Palm

Corley, R. H. V.; Mok, C. K.

doi:10.1017/s0014479700005470

Cited by 26 publications

(9 citation statements)

References 9 publications

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“…Macronutrients (particularly N, P and K) played a vital role, especially to the growth of young oil palm. For instance, N and K are the essential nutrients for improvement of vegetative dry matter production and leaf area index of young oil palm (Corley and Mok 1972;Squire 1984). This was supported by correlation coefficients analysis, which revealed that the shoot biomass was positively correlated with N (R = 0.80, P < 0.001) and K uptake (R = 0.79, P < 0.001).…”

Section: Discussionmentioning

confidence: 69%

Biochar-compost mixture as amendment for improvement of polybag-growing media and oil palm seedlings at main nursery stage

Radin

Bakar

Ishak

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose Production of oil palm seedling in the nursery mainly utilises top soil as polybag medium. These soils, especially in tropical regions, are acidic and have low organic matter content. The aim of this study was to investigate the effects of oil palm empty fruit bunch (EFB) biochar and compost incorporation as amendment in polybag medium for oil palm seedlings growth at the nursery stage. Methods A polybag experiment was conducted with four biochar rates (0, 0.5, 1.0 and 1.5% w/w C addition), two compost rates (0 and 30% v/v), and two fertiliser application rates (75 and 100% of recommended rate). The effects of biochar, compost, and biochar-compost combination on oil palm seedling growth was evaluated and the effectiveness of EFB biochar in retaining soil nutrients was determined indirectly by measuring amount of nutrient leached through the polybag medium. Results Biochar, compost, and biochar-compost amendment improved polybag media's chemical properties (pH, total C and N, C:N ratio, CEC, Mg, and Ca). There were no significant effects of the amendments on shoot biomass. However, root growth and shoot:root ratio significantly improved with 1.5% w/w C addition and 30% (v/v) compost with 75% recommended fertiliser rates applied. Furthermore, nutrient leaching measurement indicates that, EFB biochar significantly reduced ammonium-N leaching up to 21-46%. Conclusions Overall, this study demonstrates the potential of biochar and compost co-application to improve the chemical properties of polybag medium and root development of oil palm seedlings.

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Section: Discussionmentioning

confidence: 69%

Biochar-compost mixture as amendment for improvement of polybag-growing media and oil palm seedlings at main nursery stage

Radin

Bakar

Ishak

et al. 2017

Int J Recycl Org Waste Agricult

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“…The LAI increases linearly from planting until 5-6 YAP and peaks around 10 YAP, when the leaves reach their maximum size (Gerritsma and Soebagyo, 1999). The maximum LAI typically varies between 4 and 6 depending on genotype (Gerritsma and Soebagyo, 1999;Breure, 2010), environment , planting density Gerritsma and Soebagyo, 1999), pruning (Squire and Corley, 1987), fertiliser use (Corley and Mok, 1972;Breure, 1985), and general agronomic management. In plantations where old leaves are not removed, LAI may exceed 10 (Squire and Corley, 1987).…”

Section: Vegetative Growthmentioning

confidence: 99%

On yield gaps and better management practices in Indonesian smallholder oil palm plantations

Woittiez

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“…Presence of K and Mg in GanoCare ® may have enhanced the photosynthesis rate and chlorophyll content of oil palms. In a study, increased application levels of K improved the light interception, hence enhancing the dry matter and yield of oil palm by 38% [36]. Mg, which is the central element of chlorophyll, aids in efficient photosynthesis, and a study has proved that application of Mg as a kieserite to oil palm increased the oil-to-bunch ratio by 1 and 1.8% [37].…”

Section: Effect Of Ganocare ® On Growth and Physiologicalmentioning

confidence: 99%

GanoCare® Improves Oil Palm Growth and Resistance against Ganoderma Basal Stem Rot Disease in Nursery and Field Trials

Rebitanim

Hanafi

Idris

et al. 2020

BioMed Research International

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Basal stem rot (BSR) caused by Ganoderma boninense is a major threat to sustainable oil palm production especially in Southeast Asia and has brought economic losses to the oil palm industry around the world. With no definitive cure at present, this study introduces a new fertilizer technology called GanoCare®, as an effort to suppress BSR incidence in oil palm. Experiments were carried out to evaluate the effect of GanoCare® on growth, physiology, and BSR disease suppression using sitting technique in the oil palm nursery stage. A follow-up using similar treatments was carried out in the field to test on severity of Ganoderma using baiting technique under natural condition. Treatments tested were 10 g/month and 30 g/three months given as pretreatment only or continuous treatment. Results showed that GanoCare® increased the height, bulb diameter, leaf area, chlorophyll content, photosynthesis rate, and fresh and dry weight of the leaf, bole, and root of oil palm seedlings in the nursery trial. Seedlings treated with GanoCare® exhibited reduced percentage of disease severity, incidence, and dead seedlings, compared to the control. In nursery and field, lowest percentage of dead seedlings due to Ganoderma was found in seedlings given combination of pretreatment and continuous treatment of 30 g/three months (T4) with 5.56 and 6.67%, while control seedlings significantly marked the maximum percentage of 94.45 and 93.33%. The most successful treatment in both nursery and field was T4 with disease reductions of 77.78 and 82.36%, respectively, proving that nutrients contained in GanoCare® are essential in allowing better development of a strong defense system in the seedlings.

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Effects of Nitrogen, Phosphorus, Potassium and Magnesium on Growth of the Oil Palm

Cited by 26 publications

References 9 publications

Biochar-compost mixture as amendment for improvement of polybag-growing media and oil palm seedlings at main nursery stage

Biochar-compost mixture as amendment for improvement of polybag-growing media and oil palm seedlings at main nursery stage

On yield gaps and better management practices in Indonesian smallholder oil palm plantations

GanoCare® Improves Oil Palm Growth and Resistance against Ganoderma Basal Stem Rot Disease in Nursery and Field Trials

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