Study of inorganic fertilizer effects on morphological of coconuts (Cocus Nucifera L.) at different tropical regions in Perak
2021
Mohammad Asyraf Husin | Khairol Ismail | Mohd Hery Azwan Mohd Bakhtiar
The study was carried out to examine the effects of inorganic fertilizers on the measurable morphology characters of coconut planted at different tropical region in Perak at pre-matured stage. 48 Malayan Red Dwarf (MRD) at the age of nine-month old were used and planted horizontally on raised sites at a spacing of 7.0 m between seedlings and 7.0 m between rows triangularly each experimental sites. The fertilizer used is NPK 15:15:15 (Green) compound and the treatments are as T1 (Control), T2 (1.5 kg/plant/year), T3 (3.0 kg/plant/year) and T4 (4.5kg/plant/year). Details of the treatments are as T1 (Control), T2 (1.5 kg/plant/year of NPK Green), T3 (3.0 kg/plant/year of NPK Green), T4 (4.5kg/plant/year of NPK Green). The measurable characters of were collected like i.e., plants height (m), stems girth (cm), number of fronds, fronds length (m), chlorophyll content (SPAD Reading) and light intensity (µmol m−2 s−1). After the evaluation in the first yea, it shows that treatment of T2 (1.5 kg/plant /year) available dosage rate for excellent growth performance. Followed to the second year, treatment T3 (3.0 kg /plant/year) increased the nutrient capabilities for plants uptake. Then, for third year, treatment T4 (4.5kg/plant/year) adopted the nutritional requirement of seedlings at field stage. The work indicated morphological diversity of seedlings at field stage to help the growers in choosing the optimum rate of fertilizer for their plantation in Perak, Malaysia.
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