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All Journal AGRIVITA, Journal of Agricultural Science SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Penelitian Kelapa Sawit International Journal of Natural Science Studies and Development (IJOSS)
Nuzul Hijri Darlan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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DISTRIBUSI PERAKARAN KELAPA SAWIT DAN SIFAT FISIK TANAH PADA UKURAN LUBANG TANAM DAN APLIKASI TANDAN KOSONG SAWIT YANG BERBEDA Pradiko, Iput; Hidayat, Fandi; Darlan, Nuzul Hijri; Santoso, Heri; Winarna, Winarna; Rahutomo, Suroso; Sutarta, Edy Sigit
Jurnal Penelitian Kelapa Sawit Vol 24 No 1 (2016): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.028 KB) | DOI: 10.22302/iopri.jur.jpks.v24i1.4

Abstract

This study was conducted to determine the root distribution and to analyze soil physical factors that affect roots development in different size of planting hole; standard (0.6 m x 0.6 m x 0.6 m), medium ((1 x 1 cm x 0.6 m) with 400 kg empty fruit bunches (EFB)/hole and 740 g urea/hole, and big (2.8 mx 2.8 mx 1 m) with 400 kg EFB/hole and 740 gr urea/hole. This study employed demonstration plot that used a non factorialrandomized block design (RBD) with three treatments (standard, medium, and big hole) and three replications. The results showed that total distribution of oil palm roots in standard, medium, and big planting 3 3 hole are respectively 28.60 g /dm ; 26.69 g/dm ; and 3 24.47 g/dm . Types of planting hole did not significantly affect primary root, but significantly affected secondary and tertiary root distribution. In big planting hole, oil palm has highest secondary and tertiary roots distribution than the others (up to 70%). Increasing ofpermeability, porosity, and decreasing of soil bulk density tends to increase root distribution, especially tertiary. Meanwhile, increase on soil water content is not followed by secondary and tertiary distribution, since booth root types more distributed in the upper soil layer. Better soil tillage; through big planting hole, can improve soil properties and optimizing development of secondary and tertiary roots.
EFEK KEKERINGAN DAN GANGGUAN ASAP TERHADAP EKOFISIOLOGI DAN PRODUKTIVITAS TANAMAN KELAPA SAWIT DI SUMATRA SELATAN Syarovy, Muhdan; Pradiko, Iput; Listia, Eka; Darlan, Nuzul Hijri; Hidayat, Fandi; Winarna, Winarna; Rahutomo, Suroso
Jurnal Penelitian Kelapa Sawit Vol 25 No 3 (2017): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.781 KB) | DOI: 10.22302/iopri.jur.jpks.v25i3.31

Abstract

Prolonged dry season, land fire, and haze disturbance occurred during El Niño 2015 in Indonesia. A study had been conducted to identify impacts of prolonged dry season and haze disturbance on ecophysiology of oil palm in Dawas Estate, South Sumatra. The study was conducted by collecting data of precipitation, visibility, oil palm fronds addition, rate of photosynthesis, Photosinthetically Active Radiation (PAR), and Elaeidobius kamerunicus activity on mature and immature palm before, during and after the incidence of drought and haze disturbance. T test was used for statistics analysis. The results showed that water deficit was recorded in July, August, September and October, it was 45, 92, 80, and 148 mm respectively. Dry month (precipitation was ≤ 60 mm) was 2 months, while dry spell occurred 3 times in June to July (33 days), August to September (42 days), and September to October (40 days). Haze disturbance occurred in August to November, it had decreased visibility to 80%. During drought stress and haze disturbance, there was decrease in fronds addition, photosynthesis rate and bunch productivity in following year. In addition, haze disturbance had decreased number of Elaeidobius kamerunicus visitting female flowers up to 95%.
Identification of Morphological Characteristics of Sidimpuan Snake Fruit (Salacca sumatrana Becc.) Edih Nasution, Halida; Rasmita Adelina; Sutan Pulungan; Yusriani Nasution; Nuzul Hijri Darlan
International Journal of Natural Science Studies and Development (IJOSS) Vol. 2 No. 2 (2025): IJOSS
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijoss.v2i2.32

Abstract

Sidimpuan snake fruit (Salacca sumatrana Becc.) plants have several varieties, one of which has a distinctive feature in the taste and colour of the fruit flesh. The results of the study from the three locations in Padangsidimpuan City obtained the morphological characteristics of sweet snake fruit (less) having a round oval to long triangular shape with brown to yellowish-brown fruit skin colour. The results of the dendrogram of the sidimpuan snake fruit (Salacca sumatrana Becc) kinship relationship based on the morphological characters of five types of salak, namely sweet snake fruit(less), sweet snake fruit (moderate), sweet snake fruit, white snake fruit, and red snake fruit, obtained 3 clusters from each location. Lubuk Raya Village, the Sidimpuan snake fruit kinship relationship based on five types of snake fruit, has a similarity level of 84 %. Batu Layan Village, the Sidimpuan snake fruit kinship relationship based on five types of snake fruit, has a similarity level of 92 %, and Palopat Maria Village, the Sidimpuan snake fruit kinship relationship based on five types of snake fruit, has a similarity level of 96 %. The results of the identification of morphological characters of snake fruit from three research locations based on the morphological characters of five types of snake fruit show genetic similarities, namely in the shape of the stem, leaf shape, upper leaf colour, lower leaf colour, leaf sheath colour, thorn colour, flower colour, fruit shape, and fruit skin colour
The Quantitative Analysis of Weather and Soil Moisture Role on Daily Transpiration Dynamics of Oil Palm Varieties (Elaeis guineensis Jacq.) Pradiko, Iput; Thirafi, Dhaffa Agung; Putra, Eka Tarwaca Susila; Sumaryanto, Sumaryanto; Syarovy, Muhdan; Darlan, Nuzul Hijri; Sujadi, Sujadi; Hutagalung, St Novella Angelica; Farrasati, Rana; Syarif, Afiya Nadhifah
AGRIVITA Journal of Agricultural Science Vol 48, No 1 (2026)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v48i1.4713

Abstract

The purpose of the study is to estimate and determine the in-situ transpiration dynamics of three oil palm varieties, which include DxP Langkat, DyP Dumpy, and DxP PPKS 540, using the Ratio Method (HRM) to measure real-time sap flow (SF). Field observations in Adolina, North Sumatra, were conducted in September, October, and December 2023 to collect data on macro- and microweather and soil moisture at varying distances from sample trees. Vapor pressure deficit (VPD) and solar radiation (QS) were among the key environmental factors that had strong associations with SF. Up to 82.24% of SF variability was explained by VPD and QS. DxP PPKS 540 recorded the highest transpiration rate of 1.70 mm/day because it had a higher leaf area (9.00 m2), and a bigger petiole cross-section (52.50 cm2). DxP Langkat, on the other hand, had the lowest transpiration rate at 1.49 mm/day. The results indicated the significance of VPD and QS in controlling sap flow and suggested that transpiration varied among varieties. This study provides an understanding of the physiological variation among oil palm varieties and a basis for future use in determining genotypes with increased drought resistance and adaptability to enhance resilience in new climatic conditions.
Mounding technique improves physiological performance and yield of oil palm on Spodosols Suwardi, Suwardi; Sutiarso, Lilik; Wirianata, Herry; Nugroho, Andri Prima; Pradiko, Iput; Ginting, Eko Noviandi; Darlan, Nuzul Hijri; Syarovy, Muhdan; Primananda, Septa; Sukarman, Sukarman
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 19, No 2 (2022): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v19i2.65460

Abstract

Spodosols have been widely used for oil palm plantations, specifically in Kalimantan, Indonesia. However, they are sub-optimal for agriculture due to a lack of water and nutrient-holding capacity and a spodic layer that limits plant root development. Therefore, proper agriculture practices are needed for oil palm to enhance its potential yield. This study aims to determine the effect of the mounding technique on the physiological performance and yield of oil palms in spodosol. The study location was well-managed, with eight blocks of oil palm plantations planted in 2008 on spodosols (Typic Haplohumod) in Central Kalimantan. The mounding technique was applied to four blocks of oil palm planted in 2015, while the remaining four were left without mounding. The parameters observed were soil moisture, transpiration, number of bunches, bunch weight, and yield. The results showed that the average moisture in the mounded soil was 4% greater than the control.  Additionally, the average daily transpiration of oil palm with the mounding was up to 2.30 mm day-1 or three times higher than the control.  The implication was that the average yield of oil palm increased from approximately 1.84 to 3.71 tons ha-1 year-1 compared to no-mounding treatments. Furthermore, the average yield was 19-66% higher than the block without the mounding application.
Estimation of water use efficiency (WUE) for efficient irrigation level of oil palm during the main nursery phase Pradiko, Iput; Farrasati, Rana; Darlan, Nuzul Hijri; Sumaryanto, Sumaryanto; Thirafi, Dhaffa Agung
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i1.93336

Abstract

The water requirement of oil palm depends on the growth phase (e.g., higher demand during vegetative expansion), environmental conditions (e.g., increased under high vapour pressure deficit), and agricultural practices (e.g., reduced demand through effective water management). Therefore, the water used for oil palm nurseries should be used efficiently to preserve environmental sustainability. The main objective of this research was to determine the water use efficiency (WUE) of oil palm during the main nursery phase. The study evaluated several irrigation strategies inside and outside the greenhouse, including fixed daily watering (two liters per seedling), irrigation based on actual evapotranspiration (ETa), rainfall-dependent watering, and no irrigation. In the outdoor treatments, one group of seedlings was irrigated according to ETa, but watering was withheld when daily rainfall exceeded five mm, while another group received two liters per day only when rainfall was below five mm.  These two treatments showed the highest daily evapotranspiration rates, greater vegetative growth, and higher biomass accumulation compared to the other treatments. Notably, the ETa-based treatment was recorded as having the highest water use efficiency (WUE). This study concludes that water loss during evapotranspiration is the main determining factor for irrigation volume. Therefore, irrigation in oil palm nurseries should be based on ETa to improve efficiency and lower costs. These findings offer practical guidance for farmers or plantation management to support more sustainable and cost-effective irrigation practices.
Co-Authors Andri Prima Nugroho Edih Nasution, Halida Edy Sigit Sutarta Eka Listia Eka Tarwaca Susila Putra Eko Noviandi Ginting, Eko Noviandi Fandi Hidayat, Fandi Farrasati, Rana Heri Santoso Hutagalung, St Novella Angelica Lilik Sutiarso Muhdan Syarovy Pradiko, Iput Primananda, Septa Rahutomo, Suroso Rasmita Adelina Sujadi Sujadi Sukarman Sukarman Sumaryanto Sumaryanto, Sumaryanto Sutan Pulungan Suwardi Suwardi Syarif, Afiya Nadhifah Thirafi, Dhaffa Agung Winarna Winarna Wirianata, Herry Yusriani Nasution