residue management – Journal of Oil Palm Research https://jopr.mpob.gov.my Wed, 17 Nov 2021 02:41:09 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 NUTRIENT CYCLING IN AN OIL PALM PLANTATION: THE EFFECTS OF RESIDUE MANAGEMENT PRACTICES DURING REPLANTING ON DRY MATTER AND NUTRIENT UPTAKE OF YOUNG PALMS https://jopr.mpob.gov.my/nutrient-cycling-in-an-oil-palm-plantation-the-effects-of-residue-management-practices-during-replanting-on-dry-matter-and-nutrient-uptake-of-young-palms/ Sat, 13 Nov 2021 15:42:08 +0000 https://jopr.mpob.gov.my/V2/?p=9361 Oil palm residues during replanting contributed significant amount of nutrients that can be recycled in the plantation. The management of oil palm residues affects the release of nutrients and hence their uptake and the growth of young palms. Dry matter and nutrient uptake of young palms and ground cover were estimated. Planting young palms directly onto the residue pile is the most effective method of biomass management during replanting as it provides better synchronization between nutrient release and plant uptake.

The young palms only utilized about 10% – 20% of the total nutrient uptake that is mostly found in the fronds. The young palms planted onto the residue pile is the most effective method of biomass management during replanting as it provides better synchronization between nutrient release and plant uptake.

The young palms only utilized about 10%-20% of the total nutrient uptake that is mostly found in the fronds. The young palms planted onto the residue pile without inorganic fertilizer inputs immobilized about 30 kg N ha-1, 3 kg P ha-1, 43 kg K ha-‘, 6 Kg Ca ha-1 and 4 kg Mg ha-1, over the 18-month period of assessment. The results obtained showed that the chipped and shredded (C / S) treatment was the most efficient. More than 80% of the nutrients were consumed by the ground cover which comprised legumes and weeds. The ground cover immobilized about 254 kg N ha-1, 19 kg P ha-1, 181 kg K ha-‘, 56 kg Ca ha-1 and 28 kg P ha-1 over 18 months and became a transient pool that would recycle its nutrients at a later stage in the plantation life.

]]> SOIL NUTRIENT DYNAMICS AND PALM GROWTH PERFORMANCE IN RELATION TO RESIDUE MANAGEMENT PRACTICES FOLLOWING REPLANTING OF OIL PALM PLANTATIONS https://jopr.mpob.gov.my/soil-nutrient-dynamics-and-palm-growth-performance-in-relation-to-residue-management-practices-following-replanting-of-oil-palm-plantations/ Sat, 13 Nov 2021 15:42:35 +0000 https://jopr.mpob.gov.my/V2/?p=9375 The Policy of zero burning practices for replanting of oil palm plantations is currently considered desirable since it avoids air and water pollution and may also enable the development of more economically sustainable practices based on nutrient supply from organic matter management. Under the standard zero burning practices, young palms are planted between widely-spaced windrows of residues from the old stands. This practice maximizes the spatial and temporal uncoupling between the release of nutrients from the decomposing residues and plant uptake. An improved understanding of the spatial and temporal patterns of nutrient release and plant uptake will enable better management of the synchrony between these processes and greater conservation of nutrients. Studies were carried out on the establishment and growth of young palms planted into the palm residues which were chopped, shredded or pulverized without additional inputs of inorganic fertilizer. The preliminary results of palm responses to the techniques established were impressive as a consequence of improving nutrient synchrony and the beneficial effects of organic mulching on soil properties to crop production. It is concluded that these methods of planting and residue management improved the spatial integration of nutrient release and uptake by the rooting systems of young palms. The supply of nutrient requirement that is partly provided by the recycling of biomass can reduce the use of inorganic fertilizers to optimize growth rates of the immature palms. Savings in fertilizers resulting from these practices could reduce the production costs as well as contributing towards environmental conservation.

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