Observasi Kadar Hara pada Daun Kelapa Sawit melalui Metode Leaf Sampling Unit (LSU)
Date
2026Jenis/Type
Tugas AkhirSubtype
Undergraduate ThesesAuthor
SETIAJI, YUDA BAYU
Azhar, Aidil
Metadata
Show full item recordAbstract
Oil palm (Elaeis guineensis Jacq.) is a crop with high nutrient requirements;
therefore, evaluating its nutrient status is essential to support optimal growth and
productivity. This study aimed to evaluate the nutrient contents of the 9th, 17th,
25th, and 33rd fronds and to determine the most representative frond as the standard
Leaf Sampling Unit (LSU). The research was conducted at Hatantiring Estate, PT
Teguh Sempurna, using an observational approach. Leaf samples were analyzed for
nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg)
using the Kjeldahl, spectrophotometric, flame photometric, and Atomic Absorption
Spectrophotometry (AAS) methods. The results indicated that N and P contents
tended to decrease with increasing frond age, whereas K showed a fluctuating
pattern, with the highest concentration observed in the 25th frond. Calcium content
remained relatively stable across all frond positions, while Mg tended to decline in
older fronds. Based on the distribution of nutrient contents and frond biomass, the
17th frond remained the most representative position for the LSU standard, whereas
the 25th frond showed potential as an alternative. YUDA BAYU SETIAJI. Observasi Kadar Hara pada Daun Kelapa Sawit melalui
Metode Leaf Sampling Unit (LSU). Dibimbing oleh AIDIL AZHAR.
Kelapa sawit (Elaeis guineensis Jacq.) merupakan tanaman dengan
kebutuhan unsur hara yang tinggi sehingga evaluasi status hara diperlukan untuk
mendukung produktivitas. Penelitian ini bertujuan mengevaluasi kandungan unsur
hara pada pelepah ke-9, ke-17, ke-25, dan ke-33 serta menentukan pelepah yang
paling representatif sebagai standar leaf sampling unit (LSU). Penelitian
dilaksanakan di Hatantiring Estate, PT Teguh Sempurna, menggunakan metode
observasional. Sampel daun dianalisis untuk mengetahui kandungan nitrogen (N),
fosfor (P), kalium (K), kalsium (Ca), dan magnesium (Mg) menggunakan metode
Kjeldahl, spektrofotometri, flame photometer, dan Atomic Absorption
Spectrophotometry (AAS). Hasil penelitian menunjukkan bahwa kandungan N dan
P cenderung menurun seiring bertambahnya umur pelepah, K menunjukkan pola
fluktuatif dengan nilai tertinggi pada pelepah ke-25, sedangkan Ca relatif stabil dan
Mg cenderung menurun pada pelepah tua. Berdasarkan distribusi unsur hara dan
biomassa, pelepah ke-17 tetap paling representatif sebagai standar LSU, sementara
pelepah ke-25 berpotensi menjadi alternatif.

