CD Tesis
Pemupukan Nitrogen, Respirasi Heterotrofik Dan Pertumbuhan Vegetatif Tanaman Kelapa Sawit (Elaeis Guineensis Jacq) Di Lahan Gambut
Management of nitrogen nutrients through fertilization in oil palm
plantations on peatland is essential to minimize the impact of CO₂ emissions and
ensure the growth and development of the plants. The research was carried out at
PT Tunggal Mitra Plantation, Manggala 3 Estate, Rokan Hilir Regency, Riau
Province. The objective of this study is to understand the relationship between N
fertilizer dosage and heterotrophic respiration, vegetative growth, and physiology
in oil palm planted on peatland. The study will be carried out using a randomized
block design with nitrogen fertilizer treatment dosages of 0.5 kg N/palm/year, 1 kg
N/palm/year, 1.5 kg N/palm/year, and a control with 0 kg N/palm/year, repeated
3, resulting in 12 experimental plots. Each experimental plot will consist of 16 oil
palm trees, with 4 trees as recording palms and 12 trees as plot boundary
dividers. Observation variables include heterotrophic respiration, environmental
parameters (soil temperature and ground water level ), vegetative growth (height,
length of fronds, girth of stem,leaf area and dry biomass), and physiological
responses ((leaf greenness level and N nutrient content in plants). The data
obtained were analyzed statistically using Analysis of variance (ANOVA) or
analysis of variance was used to show that there were significant differences due
to treatment of the observed variables with a confidence value of 95% (p
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