The Plant and Crop

Soh, A. C.; Mayes, Sean; Roberts, Jeremy

doi:10.1201/9781315119724-2

Cited by 2 publications

(2 citation statements)

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“…Oleh karena itu, dibutuhkan upaya untuk meningkatkan efisiensi pemupukan dan mencari alternatif pupuk yang memiliki efisiensi yang tinggi. Pemupukan pada tanaman kelapa sawit dengan pupuk anorganik telah lama menjadi instrumen penting untuk meningkatkan produktivitas maupun mengatasi kehilangan hara tanah (Soh et al 2017). Akan tetapi, jika pemupukan dilakukan tidak tepat maka dapat menjadi sumber ketidakefisienan pengusahaan sawit (Darmosaroko et al 2003).…”

Section: Pendahuluanunclassified

EFEKTIVITAS BEBERAPA JENIS PUPUK N PADA PEMBIBITAN KELAPA SAWIT / Effectiveness of Several Types of N Fertilizer on Palm Oil Nursery

Hartatik¹,

Wibowo²

2018

j. penelitian tanam. industri

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Formula pupuk N lepas lambat diperlukan untuk meningkatkan efisiensi N. Tujuan penelitian adalah mempelajari pengaruh beberapa jenis pupuk N terhadap pembibitan kelapa sawit menggunakan tanah Inceptisols Bogor. Penelitian dilaksanakan di Rumah Kaca dan Laboratorium Balai Penelitian Tanah, Bogor. Rancangan percobaan yang digunakan Rancangan Acak Lengkap dengan 5 ulangan. Perlakuan yang dicobakan adalah (1) Kontrol lengkap, (2) Kontrol tanpa Urea, (3) Urea pril (standar), (4) N + Zeolit 50%, (5) N + Zeolit 75%, (6) N + Zeolit 100%, (7) N+ Zeolit + Kitosan 50%, (8) N + Zeolit + Kitosan 75%, (9) N + Zeolit + Kitosan 100%, (10) N + Zeolit + Humat 50%, (11) N + Zeolit + Humat 75%, (12) N + Zeolit + Humat 100%, (13) N-Humat 50%, dan (14) N-Humat 100%. Analisis tanah dilakukan sebelum tanam dan sesudah panen biomas dengan parameter: N-total (metode Kjeldahl), P-tersedia (Bray I), Kation dapat ditukar (Ca, Mg, K) dan kapasitas tukar kation (KTK) (ekstrak NH4Ac pH 7), kejenuhan basa (KB). Pengamatan agronomis tinggi tanaman umur 1, 2, 4, 6, 8 dan 9 bulan, bobot biomas basah dan kering, serapan hara N, P dan K. Hasil penelitian menunjukkan bahwa perlakuan N + Zeolit + Kitosan 75% nyata meningkatkan tinggi tanaman kelapa sawit umur 9 bulan sebesar 146,7 cm, bobot biomas kering sebesar 701,2 g pot -1 dengan nilai RAE 140% dan serapan hara N, P, dan K masing-masing sebesar 2,82; 0,25 dan 2,17 g pot -1 . Peningkatan bobot biomas kering sebesar 22% dibanding Urea standar. Formulasi pupuk N dengan Zeolit dan penyalutan dengan Kitosan mampu mengefisienkan pupuk Urea hingga 25%.

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Section: Pendahuluanunclassified

EFEKTIVITAS BEBERAPA JENIS PUPUK N PADA PEMBIBITAN KELAPA SAWIT / Effectiveness of Several Types of N Fertilizer on Palm Oil Nursery

Hartatik¹,

Wibowo²

2018

j. penelitian tanam. industri

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“…Therefore, it is essential to enhance fertilizer efficiency and explore alternative fertilizers with high efficacy. For a long time, the application of inorganic fertilizers has been a key method to boost productivity and replenish soil nutrients in oil palm crops, as emphasized by Soh et al in 2017. Nevertheless, improper fertilization practices can lead to inefficiencies in oil palm cultivation, especially with the rising fertilizer prices.…”

Section: Introductionmentioning

confidence: 99%

Effect of NBPT-DCD (Urease and Nitrification Inhibitor) on Nitrogen Loss, N Uptake and Oil Palm Yields (Elaeis guineensis Jacq.) bn Typic Dystrudepts Soil

Khairuddin,

Wawan,

Nasrul

et al. 2024

JUATIKA

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Incorporating N-(n-butyl) thiophosphoric triamide (NBPT) as a urease inhibitor and Dicyandiamide (DCD) as a nitrification inhibitor can enhance the efficiency of nitrogen (N) fertilization. The main aim of the study was to evaluate the impact of urease and nitrification inhibitors (NBPT and DCD) on N loss in urea fertilizer, N absorption, and oil palm (Elaeis guineensis Jacq.) yield. Researchers conducted the field trial using a single-factor, completely randomized design (CRD) with three replications. The experimental treatments included nitrogen (N) fertilization with 5 different levels. The levels were: 100% urea (2.75 kg/plant/year: 1.50 kg/plant in rotation 1 and 1.25 kg/plant in rotation 2) (N0), 80% urea + NBPT-DCD (2.20 kg/plant/year: 1.20 kg/plant in rotation 1 and 1.0 kg/plant in rotation 2) (N1), 60% urea + NBPT-DCD (1.65 kg/plant/year: 0.90 kg/plant in rotation 1 and 0.75 kg/plant in rotation 2) (N2), Urea dosage of 80% (2.20 kg/year: 1.20 kg/plant in rotation 1 and 1.00 kg/plant in rotation 2) (N3), and Urea dosage of 60% (1.65 kg/plant/year: 0.90 kg/plant in rotation 1 and 0.75 kg/plant in rotation 2) (N4). The findings revealed that the application of Urea in combination with NBPT-DCD (inhibitors of urease and nitrification) led to a reduction in N loss by 30.33-37.48% and an increase in N absorption compared to Urea without NBPT-DCD. Oil palm trees grew on Typic Dystrudept soil. The plants received 2.20 kg of urea treatment per plant. The researchers combined Urea with NBPT-DCD. These trees had better outcomes than others. They had less N volatilization and better N absorption. They also had higher fresh fruit bunch productivity. The others received N fertilization but not NBPT-DCD.

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The Plant and Crop

Cited by 2 publications

References 0 publications

EFEKTIVITAS BEBERAPA JENIS PUPUK N PADA PEMBIBITAN KELAPA SAWIT / Effectiveness of Several Types of N Fertilizer on Palm Oil Nursery

EFEKTIVITAS BEBERAPA JENIS PUPUK N PADA PEMBIBITAN KELAPA SAWIT / Effectiveness of Several Types of N Fertilizer on Palm Oil Nursery

Effect of NBPT-DCD (Urease and Nitrification Inhibitor) on Nitrogen Loss, N Uptake and Oil Palm Yields (Elaeis guineensis Jacq.) bn Typic Dystrudepts Soil

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