Fertilizer deficiency
K( Potassium) : Compared to other nutrient elements whose concentration in palm vegetative tissue decreases with increasing palm age, the K content in oil palm vegetative dry matter remains fairly constant throughout the life cycle from nursery through to maturity, K is the nutrient required in the largest quantity by oil palms. To produce even moderate yields.
Mg (Magnesium) : Magnesium has many functions in the metabolism of oil palm, is as a constituent of chlorophyll. Magnesium is also involved in the transport of carbohydrates from leaves to bunches.
Cl (Chlorine) : Chlorine is essential for the ‘water-splitting’ process in photosynthesis and is also required for the stimulation of ATPase(enzyme), which triggers the transport of protons required to regulate pH in the cytoplasm. Chlorine is a strong osmoticum and preferentially transported into the vacuoles of root cells, where its presence results in increased water and nutrient uptake.
Ca (Calsium) : Calcium is a structural component of pectates found in the middle lamella of cell walls. It is essential for cell extension and division, membrane stabilization, maintenance of cation:anion balance in cells, and osmoregulation. Calcium is also involved as a messenger in the transfer of environmental signals (caused by high or low temperatures, or by the physical impact of rain and wind).
P (Phosphorus) : . Insufficient P application during the establishment phase leads to poor palm development (stunting, pyramid-shaped trunks), poor LCP development (soil losses due to the effect of erosion and surface runoff on exposed soil) and inefficient use of N and K fertilizers
N(Nitrogen) : Young nursery palms contain about 1.4% N, while the overall average concentration in mature oil palm tissue is 0.44–0.65% N. The concentration of N in fruit bunches ranges from 0.35–0.60% N. Nitrogen is a constituent of many essential organic compounds (e.g. amino acids, proteins, nucleic acids) and some of these proteins act as enzymes that catalyze biochemical reactions in the plant. Thus N plays an essential role in almost all physiological processes.
B(Boron) : The above-ground biomass of oil palm contains 7.0–8.5 mg B kg-1. Concentrations are similar in the crown and trunk, but decrease with increased frond age. Mature palms accumulate about 0.5 kg B ha-1in above-ground biomass. About 0.07 kg B ha-1 is removed in fruit bunches. Boron is essential for root elongation, nucleic acid synthesis, cell wall synthesis, phenol metabolism, tissue differentiation, plasma membrane integrity, carbohydrate and protein formation, pollen germination, as well as pollen tube growth.
this are the most important nutrient's in fertilizer that's benefits the oil palm....
source from http://www.aarsb.com.my
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